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How to create an EAV entity?

This is a question that pops up a lot on the web. There are some good blog articles that explain who to do that, but none of them are satisfying for me.
So I decided to a self answered question and explain how I do it ... and it seams to work.

There is a lot of code in here. In order to read correctly sort the answers by 'oldest'.

share|improve this question
2  
If this helped you, please don't upvote all the answers. It's not fair. Only the first one is enough. –  Marius Jun 6 at 13:25
1  
great elaborate answer –  huzefam Jun 6 at 13:32

6 Answers 6

up vote 10 down vote accepted

Part 1

For the purpose of this demo I'm going to create a module, let's name it Easylife_News that contains an entity named Article.
The module comes with complete CRUD code for backend, including the section for managing attributes, and some simple frontend listing and view page for each article. It also ads a menu item in the top menu to the listing of articles.
It also contains URL rewrites, RSS feed and breadcrumbs for frontend. This entity will have 4 attributes: Title, Short Description, Description, Publish Date in addition to the system ones (created_at, updated_at, status, in_rss, url_key).
The module should contain the following files.

app/etc/module/Easylife_News.xml - the declaration module:

<?xml version="1.0"?>
<config>
    <modules>
        <Easylife_News>
            <active>true</active>
            <codePool>local</codePool>
            <depends>
                <Mage_Catalog /><!-- some classes extend one class from the catalog module to avoid duplicating it -->
             </depends>
        </Easylife_News>
    </modules>
</config>

app/code/local/Easylife/News/etc/config.xml - the configuration file

<?xml version="1.0"?>
<config>
    <modules>
        <Easylife_News>
            <version>1.0.0</version>
        </Easylife_News>
    </modules>
    <global>
        <resources>
            <easylife_news_setup>
                <setup>
                    <module>Easylife_News</module>
                    <class>Easylife_News_Model_Resource_Setup</class>
                </setup>
            </easylife_news_setup>
        </resources>
        <blocks>
            <easylife_news>
                <class>Easylife_News_Block</class>
            </easylife_news>
        </blocks>
        <helpers>
            <easylife_news>
                <class>Easylife_News_Helper</class>
            </easylife_news>
        </helpers>
        <models>
            <easylife_news>
                <class>Easylife_News_Model</class>
                <resourceModel>easylife_news_resource</resourceModel>
            </easylife_news>
            <easylife_news_resource>
                <class>Easylife_News_Model_Resource</class>
                <entities>
                    <article>
                        <table>easylife_news_article</table>
                    </article>
                    <eav_attribute>
                        <table>easylife_news_eav_attribute</table>
                    </eav_attribute>
                </entities>
            </easylife_news_resource>
        </models>
        <events>
            <controller_front_init_routers><!-- event for custom router - url rewrites -->
                <observers>
                    <easylife_news>
                        <class>Easylife_News_Controller_Router</class>
                        <method>initControllerRouters</method>
                    </easylife_news>
                </observers>
            </controller_front_init_routers>
        </events>
    </global>
    <adminhtml>
        <layout>
            <updates>
                <easylife_news>
                    <file>easylife_news.xml</file>
                </easylife_news>
            </updates>
        </layout>
        <translate>
            <modules>
                <Easylife_News>
                    <files>
                        <default>Easylife_News.csv</default>
                    </files>
                </Easylife_News>
            </modules>
        </translate>
        <global_search>
            <article>
                <class>easylife_news/adminhtml_search_article</class>
                <acl>easylife_news</acl>
            </article>
        </global_search>
    </adminhtml>
    <admin>
        <routers>
            <adminhtml>
                <args>
                    <modules>
                        <Easylife_News before="Mage_Adminhtml">Easylife_News_Adminhtml</Easylife_News>
                    </modules>
                </args>
            </adminhtml>
        </routers>
    </admin>
    <frontend>
        <events>
            <page_block_html_topmenu_gethtml_before><!-- add link to top menu -->
                <observers>
                    <easylife_news>
                        <class>easylife_news/observer</class>
                        <method>addItemsToTopmenuItems</method>
                    </easylife_news>
                </observers>
            </page_block_html_topmenu_gethtml_before>
        </events>

        <routers>
            <easylife_news>
                <use>standard</use>
                <args>
                    <module>Easylife_News</module>
                    <frontName>news</frontName>
                </args>
            </easylife_news>
        </routers>
        <layout>
            <updates>
                <easylife_news>
                    <file>easylife_news.xml</file>
                </easylife_news>
            </updates>
        </layout>
        <translate>
            <modules>
                <Easylife_News>
                    <files>
                        <default>Easylife_News.csv</default>
                    </files>
                </Easylife_News>
            </modules>
        </translate>
    </frontend>
    <default>
        <easylife_news>
            <article>
                <breadcrumbs>1</breadcrumbs>
                <url_prefix>article</url_prefix>
                <url_suffix>html</url_suffix>
                <rss>1</rss>
                <meta_title>Articles</meta_title>
            </article>
        </easylife_news>
    </default>
</config>

app/code/local/Easylife/News/etc/adminhtml.xml - the admin acl and menu file.

<?xml version="1.0"?>
<config>
    <acl>
        <resources>
            <admin>
                <children>
                    <system>
                        <children>
                            <config>
                                <children>
                                    <easylife_news translate="title" module="easylife_news">
                                        <title>News</title>
                                    </easylife_news>
                                </children>
                            </config>
                        </children>
                    </system>
                    <cms>
                        <children>
                            <easylife_news translate="title" module="easylife_news">
                                <title>News</title>
                                    <children>
                                        <article translate="title" module="easylife_news">
                                            <title>Article</title>
                                            <sort_order>0</sort_order>
                                        </article>
                                        <article_attributes translate="title" module="easylife_news">
                                            <title>Manage Article attributes</title>
                                            <sort_order>7</sort_order>
                                        </article_attributes>
                                    </children>
                                </easylife_news>
                            </children>
                        </cms>

                </children>
            </admin>
        </resources>
    </acl>
    <menu>
        <cms><!-- I added the admin menu under CMS. Feel free to move it. -->
            <children>
                <easylife_news translate="title" module="easylife_news">
                    <title>News</title>
                    <sort_order>17</sort_order>
                    <children>
                        <article translate="title" module="easylife_news">
                            <title>Article</title>
                            <action>adminhtml/news_article</action>
                            <sort_order>0</sort_order>
                        </article>
                        <article_attributes translate="title" module="easylife_news">
                            <title>Manage Article Attributes</title>
                            <action>adminhtml/news_article_attribute</action>
                            <sort_order>7</sort_order>
                        </article_attributes>
                    </children>
                </easylife_news>
            </children>
        </cms>

    </menu>
</config>

app/code/local/Easylife/News/etc/system.xml - the system configuration file. It allows you to manage a few settings like SEO for the articles list, breadcrumbs, RSS enable/disable, url prefix and suffix

<?xml version="1.0"?>
<config>
    <tabs>
        <easylife translate="label" module="easylife_news">
            <label>News</label>
            <sort_order>2000</sort_order>
        </easylife>
    </tabs>
    <sections>
        <easylife_news translate="label" module="easylife_news">
            <class>separator-top</class>
            <label>News</label>
            <tab>easylife</tab>
            <frontend_type>text</frontend_type>
            <sort_order>100</sort_order>
            <show_in_default>1</show_in_default>
            <show_in_website>1</show_in_website>
            <show_in_store>1</show_in_store>
            <groups>
                <article translate="label" module="easylife_news">
                    <label>Article</label>
                    <frontend_type>text</frontend_type>
                    <sort_order>0</sort_order>
                    <show_in_default>1</show_in_default>
                    <show_in_website>1</show_in_website>
                    <show_in_store>1</show_in_store>
                    <fields>
                        <breadcrumbs translate="label">
                            <label>Use Breadcrumbs</label>
                            <frontend_type>select</frontend_type>
                            <source_model>adminhtml/system_config_source_yesno</source_model>
                            <sort_order>10</sort_order>
                            <show_in_default>1</show_in_default>
                            <show_in_website>1</show_in_website>
                            <show_in_store>1</show_in_store>
                        </breadcrumbs>
                        <url_prefix translate="label comment">
                            <label>URL prefix</label>
                            <frontend_type>text</frontend_type>
                            <sort_order>20</sort_order>
                            <show_in_default>1</show_in_default>
                            <show_in_website>1</show_in_website>
                            <show_in_store>1</show_in_store>
                            <comment>Leave empty for no prefix</comment>
                        </url_prefix>
                        <url_suffix translate="label comment">
                            <label>Url suffix</label>
                            <frontend_type>text</frontend_type>
                            <sort_order>30</sort_order>
                            <show_in_default>1</show_in_default>
                            <show_in_website>1</show_in_website>
                            <show_in_store>1</show_in_store>
                            <comment>What goes after the dot. Leave empty for no suffix.</comment>
                        </url_suffix>
                        <rss translate="label">
                            <label>Enable rss</label>
                            <frontend_type>select</frontend_type>
                            <source_model>adminhtml/system_config_source_yesno</source_model>
                            <sort_order>40</sort_order>
                            <show_in_default>1</show_in_default>
                            <show_in_website>1</show_in_website>
                            <show_in_store>1</show_in_store>
                        </rss>
                        <meta_title translate="label">
                            <label>Meta title for articles list page</label>
                            <frontend_type>text</frontend_type>
                            <sort_order>50</sort_order>
                            <show_in_default>1</show_in_default>
                            <show_in_website>1</show_in_website>
                            <show_in_store>1</show_in_store>
                        </meta_title>
                        <meta_description translate="label">
                            <label>Meta description for articles list page</label>
                            <frontend_type>textarea</frontend_type>
                            <sort_order>60</sort_order>
                            <show_in_default>1</show_in_default>
                            <show_in_website>1</show_in_website>
                            <show_in_store>1</show_in_store>
                        </meta_description>
                        <meta_keywords translate="label">
                            <label>Meta keywords for articles list page</label>
                            <frontend_type>textarea</frontend_type>
                            <sort_order>70</sort_order>
                            <show_in_default>1</show_in_default>
                            <show_in_website>1</show_in_website>
                            <show_in_store>1</show_in_store>
                        </meta_keywords>
                    </fields>
                </article>
            </groups>
        </easylife_news>
    </sections>
</config>

app/code/local/Easylife/News/sql/easylife_news_setup/install-1.0.0.php - the install script

<?php
$this->startSetup();
//create the entity table
$table = $this->getConnection()
    ->newTable($this->getTable('easylife_news/article'))
    ->addColumn('entity_id', Varien_Db_Ddl_Table::TYPE_INTEGER, null, array(
        'identity'  => true,
        'unsigned'  => true,
        'nullable'  => false,
        'primary'   => true,
        ), 'Entity ID')
    ->addColumn('entity_type_id', Varien_Db_Ddl_Table::TYPE_SMALLINT, null, array(
        'unsigned'  => true,
        'nullable'  => false,
        'default'   => '0',
        ), 'Entity Type ID')
    ->addColumn('attribute_set_id', Varien_Db_Ddl_Table::TYPE_SMALLINT, null, array(
        'unsigned'  => true,
        'nullable'  => false,
        'default'   => '0',
        ), 'Attribute Set ID')
    ->addColumn('created_at', Varien_Db_Ddl_Table::TYPE_TIMESTAMP, null, array(
        ), 'Creation Time')
    ->addColumn('updated_at', Varien_Db_Ddl_Table::TYPE_TIMESTAMP, null, array(
        ), 'Update Time')
    ->addIndex($this->getIdxName('easylife_news/article', array('entity_type_id')),
        array('entity_type_id'))
    ->addIndex($this->getIdxName('easylife_news/article', array('attribute_set_id')),
        array('attribute_set_id'))
    ->addForeignKey(
        $this->getFkName(
            'easylife_news/article',
            'attribute_set_id',
            'eav/attribute_set',
            'attribute_set_id'
        ),
        'attribute_set_id', $this->getTable('eav/attribute_set'), 'attribute_set_id',
        Varien_Db_Ddl_Table::ACTION_CASCADE, Varien_Db_Ddl_Table::ACTION_CASCADE)
    ->addForeignKey($this->getFkName('easylife_news/article', 'entity_type_id', 'eav/entity_type', 'entity_type_id'),
        'entity_type_id', $this->getTable('eav/entity_type'), 'entity_type_id',
        Varien_Db_Ddl_Table::ACTION_CASCADE, Varien_Db_Ddl_Table::ACTION_CASCADE)
    ->setComment('Article Table');
$this->getConnection()->createTable($table);

//create the attribute values tables (int, decimal, varchar, text, datetime)
$articleEav = array();
$articleEav['int'] = array(
    'type'      => Varien_Db_Ddl_Table::TYPE_INTEGER,
    'length'    => null,
    'comment'   => 'Article Datetime Attribute Backend Table'
);

$articleEav['varchar'] = array(
    'type'      => Varien_Db_Ddl_Table::TYPE_TEXT,
    'length'    => 255,
    'comment'   => 'Article Varchar Attribute Backend Table'
);

$articleEav['text'] = array(
    'type'      => Varien_Db_Ddl_Table::TYPE_TEXT,
    'length'    => '64k',
    'comment'   => 'Article Text Attribute Backend Table'
);

$articleEav['datetime'] = array(
    'type'      => Varien_Db_Ddl_Table::TYPE_DATETIME,
    'length'    => null,
    'comment'   => 'Article Datetime Attribute Backend Table'
);

$articleEav['decimal'] = array(
    'type'      => Varien_Db_Ddl_Table::TYPE_DECIMAL,
    'length'    => '12,4',
    'comment'   => 'Article Datetime Attribute Backend Table'
);

foreach ($articleEav as $type => $options) {
    $table = $this->getConnection()
        ->newTable($this->getTable(array('easylife_news/article', $type)))
        ->addColumn('value_id', Varien_Db_Ddl_Table::TYPE_INTEGER, null, array(
            'identity'  => true,
            'nullable'  => false,
            'primary'   => true,
            ), 'Value ID')
        ->addColumn('entity_type_id', Varien_Db_Ddl_Table::TYPE_SMALLINT, null, array(
            'unsigned'  => true,
            'nullable'  => false,
            'default'   => '0',
            ), 'Entity Type ID')
        ->addColumn('attribute_id', Varien_Db_Ddl_Table::TYPE_SMALLINT, null, array(
            'unsigned'  => true,
            'nullable'  => false,
            'default'   => '0',
            ), 'Attribute ID')
        ->addColumn('store_id', Varien_Db_Ddl_Table::TYPE_SMALLINT, null, array(
            'unsigned'  => true,
            'nullable'  => false,
            'default'   => '0',
            ), 'Store ID')
        ->addColumn('entity_id', Varien_Db_Ddl_Table::TYPE_INTEGER, null, array(
            'unsigned'  => true,
            'nullable'  => false,
            'default'   => '0',
            ), 'Entity ID')
        ->addColumn('value', $options['type'], $options['length'], array(
            ), 'Value')
        ->addIndex(
            $this->getIdxName(
                array('easylife_news/article', $type),
                array('entity_id', 'attribute_id', 'store_id'),
                Varien_Db_Adapter_Interface::INDEX_TYPE_UNIQUE
            ),
            array('entity_id', 'attribute_id', 'store_id'),
            array('type' => Varien_Db_Adapter_Interface::INDEX_TYPE_UNIQUE))
        ->addIndex($this->getIdxName(array('easylife_news/article', $type), array('store_id')),
            array('store_id'))
        ->addIndex($this->getIdxName(array('easylife_news/article', $type), array('entity_id')),
            array('entity_id'))
        ->addIndex($this->getIdxName(array('easylife_news/article', $type), array('attribute_id')),
            array('attribute_id'))
        ->addForeignKey(
            $this->getFkName(
                array('easylife_news/article', $type),
                'attribute_id',
                'eav/attribute',
                'attribute_id'
            ),
            'attribute_id', $this->getTable('eav/attribute'), 'attribute_id',
            Varien_Db_Ddl_Table::ACTION_CASCADE, Varien_Db_Ddl_Table::ACTION_CASCADE)
        ->addForeignKey(
            $this->getFkName(
                array('easylife_news/article', $type),
                'entity_id',
                'easylife_news/article',
                'entity_id'
            ),
            'entity_id', $this->getTable('easylife_news/article'), 'entity_id',
            Varien_Db_Ddl_Table::ACTION_CASCADE, Varien_Db_Ddl_Table::ACTION_CASCADE)
        ->addForeignKey($this->getFkName(array('easylife_news/article', $type), 'store_id', 'core/store', 'store_id'),
            'store_id', $this->getTable('core/store'), 'store_id',
            Varien_Db_Ddl_Table::ACTION_CASCADE, Varien_Db_Ddl_Table::ACTION_CASCADE)
        ->setComment($options['comment']);
    $this->getConnection()->createTable($table);
}
//crete the news_eav_attribute (for additional attribute settings)
$table = $this->getConnection()
    ->newTable($this->getTable('easylife_news/eav_attribute'))
    ->addColumn('attribute_id', Varien_Db_Ddl_Table::TYPE_INTEGER, null, array(
        'identity'  => true,
        'nullable'  => false,
        'primary'   => true,
        ), 'Attribute ID')
    ->addColumn('is_global', Varien_Db_Ddl_Table::TYPE_INTEGER, null, array(), 'Attribute scope')
    ->addColumn('position', Varien_Db_Ddl_Table::TYPE_INTEGER, null, array(), 'Attribute position')
    ->addColumn('is_wysiwyg_enabled', Varien_Db_Ddl_Table::TYPE_INTEGER, null, array(), 'Attribute uses WYSIWYG')
    ->addColumn('is_visible', Varien_Db_Ddl_Table::TYPE_INTEGER, null, array(), 'Attribute is visible')
    ->setComment('News attribute table');
$this->getConnection()->createTable($table);

$this->installEntities();
$this->endSetup();

Models app/code/local/Easylife/News/Model/Observer.php - add the new menu item on the top menu:

<?php
class Easylife_News_Model_Observer {
    public function addItemsToTopmenuItems($observer) {
        $menu = $observer->getMenu();
        $tree = $menu->getTree();
        $action = Mage::app()->getFrontController()->getAction()->getFullActionName();

        $articleNodeId = 'article';
        $data = array(
            'name' => Mage::helper('easylife_news')->__('Articles'),
            'id' => $articleNodeId,
            'url' => Mage::helper('easylife_news/article')->getArticlesUrl(),
            'is_active' => ($action == 'easylife_news_article_index' || $action == 'easylife_news_article_view')
        );
        $articleNode = new Varien_Data_Tree_Node($data, 'id', $tree, $menu);
        $menu->addChild($articleNode);
        return $this;
    }
}

app/code/local/Easylife/News/Model/Article.php - the article main model

<?php
class Easylife_News_Model_Article
    extends Mage_Catalog_Model_Abstract {
    const ENTITY    = 'easylife_news_article';
    const CACHE_TAG = 'easylife_news_article';
    protected $_eventPrefix = 'easylife_news_article';
    protected $_eventObject = 'article';
    public function _construct(){
        parent::_construct();
        $this->_init('easylife_news/article');
    }
    protected function _beforeSave(){
        parent::_beforeSave();
        $now = Mage::getSingleton('core/date')->gmtDate();
        if ($this->isObjectNew()){
            $this->setCreatedAt($now);
        }
        $this->setUpdatedAt($now);
        return $this;
    }
    public function getArticleUrl(){
        if ($this->getUrlKey()){
            $urlKey = '';
            if ($prefix = Mage::getStoreConfig('easylife_news/article/url_prefix')){
                $urlKey .= $prefix.'/';
            }
            $urlKey .= $this->getUrlKey();
            if ($suffix = Mage::getStoreConfig('easylife_news/article/url_suffix')){
                $urlKey .= '.'.$suffix;
            }
            return Mage::getUrl('', array('_direct'=>$urlKey));
        }
        return Mage::getUrl('easylife_news/article/view', array('id'=>$this->getId()));
    }
    public function checkUrlKey($urlKey, $active = true){
        return $this->_getResource()->checkUrlKey($urlKey, $active);
    }

    public function getDescription(){ //this needs to be implemented for all WYSIWYG attributes
        $description = $this->getData('description');
        $helper = Mage::helper('cms');
        $processor = $helper->getBlockTemplateProcessor();
        $html = $processor->filter($description);
        return $html;
    }
    public function getDefaultAttributeSetId() {
        return $this->getResource()->getEntityType()->getDefaultAttributeSetId();
    }
    public function getAttributeText($attributeCode) {
        $text = $this->getResource()
            ->getAttribute($attributeCode)
            ->getSource()
            ->getOptionText($this->getData($attributeCode));
        if (is_array($text)){
            return implode(', ',$text);
        }
        return $text;
    }
    public function getDefaultValues() {
        $values = array();
        $values['status'] = 1;
        $values['in_rss'] = 1;
        return $values;
    }
}

app/code/local/Easylife/News/Model/Resource/Article.php - the resource model for the article

<?php
class Easylife_News_Model_Resource_Article
    extends Mage_Catalog_Model_Resource_Abstract {
    public function __construct() {
        $resource = Mage::getSingleton('core/resource');
        $this->setType('easylife_news_article')
            ->setConnection(
                $resource->getConnection('article_read'),
                $resource->getConnection('article_write')
            );

    }
    public function getMainTable() {
        return $this->getEntityTable();
    }
    public function checkUrlKey($urlKey, $storeId, $active = true){
        $stores = array(Mage_Core_Model_App::ADMIN_STORE_ID, $storeId);
        $select = $this->_initCheckUrlKeySelect($urlKey, $stores);
        if (!$select){
            return false;
        }
        $select->reset(Zend_Db_Select::COLUMNS)
            ->columns('e.entity_id')
            ->limit(1);
        return $this->_getReadAdapter()->fetchOne($select);
    }
    protected function _initCheckUrlKeySelect($urlKey, $store){
        $urlRewrite = Mage::getModel('eav/config')->getAttribute('easylife_news_article', 'url_key');
        if (!$urlRewrite || !$urlRewrite->getId()){
            return false;
        }
        $table = $urlRewrite->getBackend()->getTable();
        $select = $this->_getReadAdapter()->select()
            ->from(array('e' => $table))
            ->where('e.attribute_id = ?', $urlRewrite->getId())
            ->where('e.value = ?', $urlKey)
            ->where('e.store_id IN (?)', $store)
            ->order('e.store_id DESC');
        return $select;
    }
}

app/code/local/Easylife/News/Model/Resource/Article/Collection.php - the collection model

<?php
class Easylife_News_Model_Resource_Article_Collection
    extends Mage_Catalog_Model_Resource_Collection_Abstract {
    protected function _construct(){
        parent::_construct();
        $this->_init('easylife_news/article');
    }
    protected function _toOptionArray($valueField='entity_id', $labelField='title', $additional=array()){
        $this->addAttributeToSelect('title');
        return parent::_toOptionArray($valueField, $labelField, $additional);
    }
    protected function _toOptionHash($valueField='entity_id', $labelField='title'){
        $this->addAttributeToSelect('title');
        return parent::_toOptionHash($valueField, $labelField);
    }
    public function getSelectCountSql(){
        $countSelect = parent::getSelectCountSql();
        $countSelect->reset(Zend_Db_Select::GROUP);
        return $countSelect;
    }
}

The code is too long to fit in one answer. The rest will follow....wait for it.

share|improve this answer
    
Marius : Seems to Great job –  Amit Kamboj Jun 6 at 11:15
    
Can you elaborate which part of code used for store swicher –  Amit Kamboj Jun 6 at 11:18
    
@AmitKamboj. Wait for it...I'm getting there. I'm not done with the answers –  Marius Jun 6 at 11:18
    
Thankyou wait for your Answer –  Amit Kamboj Jun 6 at 11:27
    
@AmitKamboj. Look at part 6. in the layout admin file there is a reference to the store switcher. You can start from there –  Marius Jun 6 at 13:03

Part 2.

app/code/local/Easylife/News/Model/Attribute.php - the model for the article attributes

<?php
class Easylife_News_Model_Attribute
    extends Mage_Eav_Model_Entity_Attribute {
    const SCOPE_STORE                           = 0;
    const SCOPE_GLOBAL                          = 1;
    const SCOPE_WEBSITE                         = 2;
    const MODULE_NAME                           = 'Easylife_News';
    const ENTITY                                = 'easylife_news_eav_attribute';
    protected $_eventPrefix                     = 'easylife_news_entity_attribute';
    protected $_eventObject                     = 'attribute';
    static protected $_labels                   = null;
    protected function _construct(){
        $this->_init('easylife_news/attribute');
    }
    protected function _beforeSave(){
        $this->setData('modulePrefix', self::MODULE_NAME);
        if (isset($this->_origData['is_global'])) {
            if (!isset($this->_data['is_global'])) {
                $this->_data['is_global'] = self::SCOPE_GLOBAL;
            }
        }
        if ($this->getFrontendInput() == 'textarea') {
            if ($this->getIsWysiwygEnabled()) {
                $this->setIsHtmlAllowedOnFront(1);
            }
        }
        return parent::_beforeSave();
    }
    protected function _afterSave(){
        Mage::getSingleton('eav/config')->clear();
        return parent::_afterSave();
    }
    public function getIsGlobal(){
        return $this->_getData('is_global');
    }
    public function isScopeGlobal(){
        return $this->getIsGlobal() == self::SCOPE_GLOBAL;
    }
    public function isScopeWebsite(){
        return $this->getIsGlobal() == self::SCOPE_WEBSITE;
    }
    public function isScopeStore(){
        return !$this->isScopeGlobal() && !$this->isScopeWebsite();
    }
    public function getStoreId(){
        $dataObject = $this->getDataObject();
        if ($dataObject) {
            return $dataObject->getStoreId();
        }
        return $this->getData('store_id');
    }
    public function getSourceModel(){
        $model = $this->getData('source_model');
        if (empty($model)) {
            if ($this->getBackendType() == 'int' && $this->getFrontendInput() == 'select') {
                return $this->_getDefaultSourceModel();
            }
        }
        return $model;
    }
    public function getFrontendLabel(){
        return $this->_getData('frontend_label');
    }
    protected function _getLabelForStore(){
        return $this->getFrontendLabel();
    }
    public static function initLabels($storeId = null){
        if (is_null(self::$_labels)) {
            if (is_null($storeId)) {
                $storeId = Mage::app()->getStore()->getId();
            }
            $attributeLabels = array();
            $attributes = Mage::getResourceSingleton('catalog/product')->getAttributesByCode();
            foreach ($attributes as $attribute) {
                if (strlen($attribute->getData('frontend_label')) > 0) {
                    $attributeLabels[] = $attribute->getData('frontend_label');
                }
            }
            self::$_labels = Mage::app()->getTranslator()->getResource()->getTranslationArrayByStrings($attributeLabels, $storeId);
        }
    }
    public function _getDefaultSourceModel(){
        return 'eav/entity_attribute_source_table';
    }
}

app/code/local/Easylife/News/Model/Resource/Attribute.php - the attribute resource model

<?php
class Easylife_News_Model_Resource_Attribute
    extends Mage_Eav_Model_Resource_Entity_Attribute {
    protected  function _afterSave(Mage_Core_Model_Abstract $object){
        $setup       = Mage::getModel('eav/entity_setup', 'core_write');
        $entityType  = $object->getEntityTypeId();
        $setId       = $setup->getDefaultAttributeSetId($entityType);
        $groupId     = $setup->getDefaultAttributeGroupId($entityType);
        $attributeId = $object->getId();
        $sortOrder   = $object->getPosition();

        $setup->addAttributeToGroup($entityType, $setId, $groupId, $attributeId, $sortOrder);
        return parent::_afterSave($object);
    }
}

app/code/local/Easylife/News/Model/Resource/Eav/Attribute.php - the attribute EAV resource model

<?php
class Easylife_News_Model_Resource_Eav_Attribute
    extends Mage_Eav_Model_Entity_Attribute {
    const MODULE_NAME   = 'Easylife_News';
    const ENTITY        = 'easylife_news_eav_attribute';
    protected $_eventPrefix = 'easylife_news_entity_attribute';
    protected $_eventObject = 'attribute';
    static protected $_labels = null;
    protected function _construct() {
        $this->_init('easylife_news/attribute');
    }
    public function isScopeStore() {
        return $this->getIsGlobal() == Mage_Catalog_Model_Resource_Eav_Attribute::SCOPE_STORE;
    }
    public function isScopeWebsite() {
        return $this->getIsGlobal() == Mage_Catalog_Model_Resource_Eav_Attribute::SCOPE_WEBSITE;
    }
    public function isScopeGlobal() {
        return (!$this->isScopeStore() && !$this->isScopeWebsite());
    }
    public function getBackendTypeByInput($type) {
        switch ($type){
            case 'file':
                //intentional fallthrough
            case 'image':
                return 'varchar';
                break;
            default:
                return parent::getBackendTypeByInput($type);
            break;
        }
    }
    protected function _beforeDelete(){
        if (!$this->getIsUserDefined()){
            throw new Mage_Core_Exception(Mage::helper('easylife_news')->__('This attribute is not deletable'));
        }
        return parent::_beforeDelete();
    }
}

app/code/local/Easylife/News/Model/Resource/Article/Collection.php - attribute collection model

<?php
class Easylife_News_Model_Resource_Article_Attribute_Collection
    extends Mage_Eav_Model_Resource_Entity_Attribute_Collection {
    protected function _initSelect() {
            $this->getSelect()->from(array('main_table' => $this->getResource()->getMainTable()))
                ->where('main_table.entity_type_id=?', Mage::getModel('eav/entity')->setType('easylife_news_article')->getTypeId())
                ->join(
                    array('additional_table' => $this->getTable('easylife_news/eav_attribute')),
                    'additional_table.attribute_id=main_table.attribute_id'
                );
        return $this;
    }
    public function setEntityTypeFilter($typeId) {
        return $this;
    }
    public function addVisibleFilter() {
        return $this->addFieldToFilter('additional_table.is_visible', 1);
    }
    public function addEditableFilter() {
        return $this->addFieldToFilter('additional_table.is_editable', 1);
    }
}

app/code/local/Easylife/News/Model/Resource/Setup.php - the setup resource model - used for adding the entities and attribtues:

<?php
class Easylife_News_Model_Resource_Setup
    extends Mage_Catalog_Model_Resource_Setup {
    public function getDefaultEntities(){
    $entities = array();
        $entities['easylife_news_article'] = array(
            'entity_model'                  => 'easylife_news/article',
            'attribute_model'               => 'easylife_news/resource_eav_attribute',
            'table'                         => 'easylife_news/article',
            'additional_attribute_table'    => 'easylife_news/eav_attribute',
            'entity_attribute_collection'   => 'easylife_news/article_attribute_collection',
            'attributes'        => array(
                    'title' => array(
                        'group'          => 'General',
                        'type'           => 'varchar',
                        'backend'        => '',
                        'frontend'       => '',
                        'label'          => 'Title',
                        'input'          => 'text',
                        'source'         => '',
                        'global'         => Mage_Catalog_Model_Resource_Eav_Attribute::SCOPE_STORE,
                        'required'       => '1',
                        'user_defined'   => false,
                        'default'        => '',
                        'unique'         => false,
                        'position'       => '10',
                        'note'           => '',
                        'visible'        => '1',
                        'wysiwyg_enabled'=> '0',
                    ),
                    'short_description' => array(
                        'group'          => 'General',
                        'type'           => 'text',
                        'backend'        => '',
                        'frontend'       => '',
                        'label'          => 'Short description',
                        'input'          => 'textarea',
                        'source'         => '',
                        'global'         => Mage_Catalog_Model_Resource_Eav_Attribute::SCOPE_STORE,
                        'required'       => '1',
                        'user_defined'   => true,
                        'default'        => '',
                        'unique'         => false,
                        'position'       => '20',
                        'note'           => '',
                        'visible'        => '1',
                        'wysiwyg_enabled'=> '0',
                    ),
                    'description' => array(
                        'group'          => 'General',
                        'type'           => 'text',
                        'backend'        => '',
                        'frontend'       => '',
                        'label'          => 'Description',
                        'input'          => 'textarea',
                        'source'         => '',
                        'global'         => Mage_Catalog_Model_Resource_Eav_Attribute::SCOPE_STORE,
                        'required'       => '1',
                        'user_defined'   => true,
                        'default'        => '',
                        'unique'         => false,
                        'position'       => '30',
                        'note'           => '',
                        'visible'        => '1',
                        'wysiwyg_enabled'=> '1',
                    ),
                    'publish_date' => array(
                        'group'          => 'General',
                        'type'           => 'datetime',
                        'backend'        => 'eav/entity_attribute_backend_datetime',
                        'frontend'       => '',
                        'label'          => 'Publish Date',
                        'input'          => 'date',
                        'source'         => '',
                        'global'         => Mage_Catalog_Model_Resource_Eav_Attribute::SCOPE_GLOBAL,
                        'required'       => '1',
                        'user_defined'   => true,
                        'default'        => '',
                        'unique'         => false,
                        'position'       => '40',
                        'note'           => '',
                        'visible'        => '1',
                        'wysiwyg_enabled'=> '0',
                    ),
                    'status' => array(
                        'group'          => 'General',
                        'type'           => 'int',
                        'backend'        => '',
                        'frontend'       => '',
                        'label'          => 'Enabled',
                        'input'          => 'select',
                        'source'         => 'eav/entity_attribute_source_boolean',
                        'global'         => Mage_Catalog_Model_Resource_Eav_Attribute::SCOPE_STORE,
                        'required'       => '',
                        'user_defined'   => false,
                        'default'        => '',
                        'unique'         => false,
                        'position'       => '50',
                        'note'           => '',
                        'visible'        => '1',
                        'wysiwyg_enabled'=> '0',
                    ),
                    'url_key' => array(
                        'group'          => 'General',
                        'type'           => 'varchar',
                        'backend'        => 'easylife_news/article_attribute_backend_urlkey',
                        'frontend'       => '',
                        'label'          => 'URL key',
                        'input'          => 'text',
                        'source'         => '',
                        'global'         => Mage_Catalog_Model_Resource_Eav_Attribute::SCOPE_STORE,
                        'required'       => '',
                        'user_defined'   => false,
                        'default'        => '',
                        'unique'         => false,
                        'position'       => '60',
                        'note'           => '',
                        'visible'        => '1',
                        'wysiwyg_enabled'=> '0',
                    ),
                    'in_rss' => array(
                        'group'          => 'General',
                        'type'           => 'int',
                        'backend'        => '',
                        'frontend'       => '',
                        'label'          => 'In RSS',
                        'input'          => 'select',
                        'source'         => 'eav/entity_attribute_source_boolean',
                        'global'         => Mage_Catalog_Model_Resource_Eav_Attribute::SCOPE_STORE,
                        'required'       => '',
                        'user_defined'   => false,
                        'default'        => '',
                        'unique'         => false,
                        'position'       => '70',
                        'note'           => '',
                        'visible'        => '1',
                        'wysiwyg_enabled'=> '0',
                    ),
                    'meta_title' => array(
                        'group'          => 'General',
                        'type'           => 'varchar',
                        'backend'        => '',
                        'frontend'       => '',
                        'label'          => 'Meta title',
                        'input'          => 'text',
                        'source'         => '',
                        'global'         => Mage_Catalog_Model_Resource_Eav_Attribute::SCOPE_STORE,
                        'required'       => '',
                        'user_defined'   => false,
                        'default'        => '',
                        'unique'         => false,
                        'position'       => '80',
                        'note'           => '',
                        'visible'        => '1',
                        'wysiwyg_enabled'=> '0',
                    ),
                    'meta_keywords' => array(
                        'group'          => 'General',
                        'type'           => 'text',
                        'backend'        => '',
                        'frontend'       => '',
                        'label'          => 'Meta keywords',
                        'input'          => 'textarea',
                        'source'         => '',
                        'global'         => Mage_Catalog_Model_Resource_Eav_Attribute::SCOPE_STORE,
                        'required'       => '',
                        'user_defined'   => false,
                        'default'        => '',
                        'unique'         => false,
                        'position'       => '90',
                        'note'           => '',
                        'visible'        => '1',
                        'wysiwyg_enabled'=> '0',
                    ),
                    'meta_description' => array(
                        'group'          => 'General',
                        'type'           => 'text',
                        'backend'        => '',
                        'frontend'       => '',
                        'label'          => 'Meta description',
                        'input'          => 'textarea',
                        'source'         => '',
                        'global'         => Mage_Catalog_Model_Resource_Eav_Attribute::SCOPE_STORE,
                        'required'       => '',
                        'user_defined'   => false,
                        'default'        => '',
                        'unique'         => false,
                        'position'       => '100',
                        'note'           => '',
                        'visible'        => '1',
                        'wysiwyg_enabled'=> '0',
                    ),

                )
        );
        return $entities;
    }
}

app/code/local/Easylife/News/Model/Article/Attribute/Backend/File.php - backend for file attributes if you decide to add one

<?php
class Easylife_News_Model_Article_Attribute_Backend_File
    extends Mage_Eav_Model_Entity_Attribute_Backend_Abstract {
    public function afterSave($object){
        $value = $object->getData($this->getAttribute()->getName());

        if (is_array($value) && !empty($value['delete'])) {
            $object->setData($this->getAttribute()->getName(), '');
            $this->getAttribute()->getEntity()
                ->saveAttribute($object, $this->getAttribute()->getName());
            return;
        }

        $path = Mage::helper('easylife_news/article')->getFileBaseDir();

        try {
            $uploader = new Varien_File_Uploader($this->getAttribute()->getName());
            //set allowed file extensions if you need
            //$uploader->setAllowedExtensions(array('mp4', 'mov', 'f4v', 'flv', '3gp', '3g2', 'mp3', 'aac', 'm4a', 'swf'));
            $uploader->setAllowRenameFiles(true);
            $uploader->setFilesDispersion(true);
            $result = $uploader->save($path);
            $object->setData($this->getAttribute()->getName(), $result['file']);
            $this->getAttribute()->getEntity()->saveAttribute($object, $this->getAttribute()->getName());
        } catch (Exception $e) {
            if ($e->getCode() != 666){
                //throw $e;
            }
            return;
        }
    }
}

app/code/local/Easylife/News/Model/Article/Attribute/Backend/Image.php - backend for image attributes if you decide to add one

<?php
class Easylife_News_Model_Article_Attribute_Backend_Image
    extends Mage_Eav_Model_Entity_Attribute_Backend_Abstract {
    public function afterSave($object){
        $value = $object->getData($this->getAttribute()->getName());

        if (is_array($value) && !empty($value['delete'])) {
            $object->setData($this->getAttribute()->getName(), '');
            $this->getAttribute()->getEntity()
                ->saveAttribute($object, $this->getAttribute()->getName());
            return;
        }

        $path = Mage::helper('easylife_news/article_image')->getImageBaseDir();

        try {
            $uploader = new Varien_File_Uploader($this->getAttribute()->getName());
            $uploader->setAllowRenameFiles(true);
            $uploader->setFilesDispersion(true);
            $result = $uploader->save($path);
            $object->setData($this->getAttribute()->getName(), $result['file']);
            $this->getAttribute()->getEntity()->saveAttribute($object, $this->getAttribute()->getName());
        } catch (Exception $e) {
            if ($e->getCode() != 666){
                //throw $e;
            }
            return;
        }
    }
}

app/code/local/Easylife/News/Model/Article/Attribute/Backend/Urlkey.php - backend for url key attribute

<?php
class Easylife_News_Model_Article_Attribute_Backend_Urlkey
    extends Mage_Eav_Model_Entity_Attribute_Backend_Abstract {
    public function beforeSave($object) {
        $attributeName = $this->getAttribute()->getName();
        $urlKey = $object->getData($attributeName);
        if ($urlKey == '') {
            $urlKey = $object->getTitle();
        }
        $urlKey = $this->formatUrlKey($urlKey);
        $validKey = false;
        while (!$validKey) {
            $entityId = Mage::getResourceModel('easylife_news/article')->checkUrlKey($urlKey, $object->getStoreId(), false);
            if ($entityId == $object->getId() || empty($entityId)) {
                $validKey = true;
            }
            else {
                $parts = explode('-', $urlKey);
                $last = $parts[count($parts) - 1];
                if (!is_numeric($last)){
                    $urlKey = $urlKey.'-1';
                }
                else {
                    $suffix = '-'.($last + 1);
                    unset($parts[count($parts) - 1]);
                    $urlKey = implode('-', $parts).$suffix;
                }
            }
        }
        $object->setData($attributeName, $urlKey);
        return $this;
    }
    public function formatUrlKey($str) {
        $urlKey = preg_replace('#[^0-9a-z]+#i', '-', Mage::helper('catalog/product_url')->format($str));
        $urlKey = strtolower($urlKey);
        $urlKey = trim($urlKey, '-');
        return $urlKey;
    }
}

app/code/local/Easylife/News/Model/Adminhtml/Search/Article.php - model that handles the admin global search

<?php
class Easylife_News_Model_Adminhtml_Search_Article
    extends Varien_Object {
    public function load(){
        $arr = array();
        if (!$this->hasStart() || !$this->hasLimit() || !$this->hasQuery()) {
            $this->setResults($arr);
            return $this;
        }
        $collection = Mage::getResourceModel('easylife_news/article_collection')
            ->addAttributeToFilter('title', array('like' => $this->getQuery().'%'))
            ->setCurPage($this->getStart())
            ->setPageSize($this->getLimit())
            ->load();
        foreach ($collection->getItems() as $article) {
            $arr[] = array(
                'id'=> 'article/1/'.$article->getId(),
                'type'  => Mage::helper('easylife_news')->__('Article'),
                'name'  => $article->getTitle(),
                'description'   => $article->getTitle(),
                'url' => Mage::helper('adminhtml')->getUrl('*/news_article/edit', array('id'=>$article->getId())),
            );
        }
        $this->setResults($arr);
        return $this;
    }
}

We're done with the models. Let's go on to blocks.
app/code/local/Easylife/News/Block/Rss.php - the general rss block

<?php 
class Easylife_News_Block_Rss
    extends Mage_Core_Block_Template {
    protected $_feeds = array();
    public function addFeed($label, $url, $prepare = false) {
        $link = ($prepare ? $this->getUrl($url) : $url);
        $feed = new Varien_Object();
        $feed->setLabel($label);
        $feed->setUrl($link);
        $this->_feeds[$link] = $feed;
        return $this;
    }
    public function getFeeds() {
        return $this->_feeds;
    }
}

app/code/local/Easylife/News/Block/Adminhtml/Article.php - the main article block

<?php
class Easylife_News_Block_Adminhtml_Article
    extends Mage_Adminhtml_Block_Widget_Grid_Container {
    public function __construct(){
        $this->_controller         = 'adminhtml_article';
        $this->_blockGroup         = 'easylife_news';
        parent::__construct();
        $this->_headerText         = Mage::helper('easylife_news')->__('Article');
        $this->_updateButton('add', 'label', Mage::helper('easylife_news')->__('Add Article'));

        $this->setTemplate('easylife_news/grid.phtml');
    }
}

app/code/local/Easylife/News/Block/Adminhtml/Article/Edit.php - the admin edit form

<?php
class Easylife_News_Block_Adminhtml_Article_Edit
    extends Mage_Adminhtml_Block_Widget_Form_Container {
    public function __construct(){
        parent::__construct();
        $this->_blockGroup = 'easylife_news';
        $this->_controller = 'adminhtml_article';
        $this->_updateButton('save', 'label', Mage::helper('easylife_news')->__('Save Article'));
        $this->_updateButton('delete', 'label', Mage::helper('easylife_news')->__('Delete Article'));
        $this->_addButton('saveandcontinue', array(
            'label'        => Mage::helper('easylife_news')->__('Save And Continue Edit'),
            'onclick'    => 'saveAndContinueEdit()',
            'class'        => 'save',
        ), -100);
        $this->_formScripts[] = "
            function saveAndContinueEdit(){
                editForm.submit($('edit_form').action+'back/edit/');
            }
        ";
    }
    public function getHeaderText(){
        if( Mage::registry('current_article') && Mage::registry('current_article')->getId() ) {
            return Mage::helper('easylife_news')->__("Edit Article '%s'", $this->escapeHtml(Mage::registry('current_article')->getTitle()));
        }
        else {
            return Mage::helper('easylife_news')->__('Add Article');
        }
    }
}

Looks like there will be a part 3.....

share|improve this answer

Part 3.
app/code/local/Easylife/News/Block/Adminhtml/Article/Grid.php - the admin grid

<?php
class Easylife_News_Block_Adminhtml_Article_Grid
    extends Mage_Adminhtml_Block_Widget_Grid {
    public function __construct(){
        parent::__construct();
        $this->setId('articleGrid');
        $this->setDefaultSort('entity_id');
        $this->setDefaultDir('ASC');
        $this->setSaveParametersInSession(true);
        $this->setUseAjax(true);
    }
    protected function _prepareCollection(){
        $collection = Mage::getModel('easylife_news/article')->getCollection()
            ->addAttributeToSelect('publish_date')
            ->addAttributeToSelect('status')
            ->addAttributeToSelect('url_key');
        $adminStore = Mage_Core_Model_App::ADMIN_STORE_ID;
        $store = $this->_getStore();
        $collection->joinAttribute('title', 'easylife_news_article/title', 'entity_id', null, 'inner', $adminStore);
        if ($store->getId()) {
            $collection->joinAttribute('easylife_news_article_title', 'easylife_news_article/title', 'entity_id', null, 'inner', $store->getId());
        }

        $this->setCollection($collection);
        return parent::_prepareCollection();
    }
    protected function _prepareColumns(){
        $this->addColumn('entity_id', array(
            'header'    => Mage::helper('easylife_news')->__('Id'),
            'index'        => 'entity_id',
            'type'        => 'number'
        ));
        $this->addColumn('title', array(
            'header'    => Mage::helper('easylife_news')->__('Title'),
            'align'     => 'left',
            'index'     => 'title',
        ));
        if ($this->_getStore()->getId()){
            $this->addColumn('easylife_news_article_title', array(
                'header'    => Mage::helper('easylife_news')->__('Title in %s', $this->_getStore()->getName()),
                'align'     => 'left',
                'index'     => 'easylife_news_article_title',
            ));
        }

        $this->addColumn('status', array(
            'header'    => Mage::helper('easylife_news')->__('Status'),
            'index'        => 'status',
            'type'        => 'options',
            'options'    => array(
                '1' => Mage::helper('easylife_news')->__('Enabled'),
                '0' => Mage::helper('easylife_news')->__('Disabled'),
            )
        ));
        $this->addColumn('publish_date', array(
            'header'=> Mage::helper('easylife_news')->__('Publish Date'),
            'index' => 'publish_date',
            'type'=> 'date',

        ));
        $this->addColumn('url_key', array(
            'header' => Mage::helper('easylife_news')->__('URL key'),
            'index'  => 'url_key',
        ));
        $this->addColumn('created_at', array(
            'header'    => Mage::helper('easylife_news')->__('Created at'),
            'index'     => 'created_at',
            'width'     => '120px',
            'type'      => 'datetime',
        ));
        $this->addColumn('updated_at', array(
            'header'    => Mage::helper('easylife_news')->__('Updated at'),
            'index'     => 'updated_at',
            'width'     => '120px',
            'type'      => 'datetime',
        ));
        $this->addColumn('action',
            array(
                'header'=>  Mage::helper('easylife_news')->__('Action'),
                'width' => '100',
                'type'  => 'action',
                'getter'=> 'getId',
                'actions'   => array(
                    array(
                        'caption'   => Mage::helper('easylife_news')->__('Edit'),
                        'url'   => array('base'=> '*/*/edit'),
                        'field' => 'id'
                    )
                ),
                'filter'=> false,
                'is_system'    => true,
                'sortable'  => false,
        ));
        $this->addExportType('*/*/exportCsv', Mage::helper('easylife_news')->__('CSV'));
        $this->addExportType('*/*/exportExcel', Mage::helper('easylife_news')->__('Excel'));
        $this->addExportType('*/*/exportXml', Mage::helper('easylife_news')->__('XML'));
        return parent::_prepareColumns();
    }

    protected function _getStore(){
        $storeId = (int) $this->getRequest()->getParam('store', 0);
        return Mage::app()->getStore($storeId);
    }

    protected function _prepareMassaction(){
        $this->setMassactionIdField('entity_id');
        $this->getMassactionBlock()->setFormFieldName('article');
        $this->getMassactionBlock()->addItem('delete', array(
            'label'=> Mage::helper('easylife_news')->__('Delete'),
            'url'  => $this->getUrl('*/*/massDelete'),
            'confirm'  => Mage::helper('easylife_news')->__('Are you sure?')
        ));
        $this->getMassactionBlock()->addItem('status', array(
            'label'=> Mage::helper('easylife_news')->__('Change status'),
            'url'  => $this->getUrl('*/*/massStatus', array('_current'=>true)),
            'additional' => array(
                'status' => array(
                        'name' => 'status',
                        'type' => 'select',
                        'class' => 'required-entry',
                        'label' => Mage::helper('easylife_news')->__('Status'),
                        'values' => array(
                                '1' => Mage::helper('easylife_news')->__('Enabled'),
                                '0' => Mage::helper('easylife_news')->__('Disabled'),
                        )
                )
            )
        ));
        return $this;
    }

    public function getRowUrl($row){
        return $this->getUrl('*/*/edit', array('id' => $row->getId()));
    }
    public function getGridUrl(){
        return $this->getUrl('*/*/grid', array('_current'=>true));
    }
}

app/code/local/Easylife/News/Block/Adminhtml/Article/Edit/Tabs.php - the tabs in the add/edit form

<?php
class Easylife_News_Block_Adminhtml_Article_Edit_Tabs
    extends Mage_Adminhtml_Block_Widget_Tabs {
    public function __construct() {
        parent::__construct();
        $this->setId('article_info_tabs');
        $this->setDestElementId('edit_form');
        $this->setTitle(Mage::helper('easylife_news')->__('Article Information'));
    }
    protected function _prepareLayout(){
        $article = $this->getArticle();
        $entity = Mage::getModel('eav/entity_type')->load('easylife_news_article', 'entity_type_code');
        $attributes = Mage::getResourceModel('eav/entity_attribute_collection')
                ->setEntityTypeFilter($entity->getEntityTypeId());
        $attributes->addFieldToFilter('attribute_code', array('nin'=>array('meta_title', 'meta_description', 'meta_keywords')));
        $attributes->getSelect()->order('additional_table.position', 'ASC');

        $this->addTab('info', array(
            'label'     => Mage::helper('easylife_news')->__('Article Information'),
            'content'   => $this->getLayout()->createBlock('easylife_news/adminhtml_article_edit_tab_attributes')
                            ->setAttributes($attributes)
                            ->toHtml(),
        ));
        $seoAttributes = Mage::getResourceModel('eav/entity_attribute_collection')
                ->setEntityTypeFilter($entity->getEntityTypeId())
                ->addFieldToFilter('attribute_code', array('in'=>array('meta_title', 'meta_description', 'meta_keywords')));
        $seoAttributes->getSelect()->order('additional_table.position', 'ASC');

        $this->addTab('meta', array(
            'label'     => Mage::helper('easylife_news')->__('Meta'),
            'title'     => Mage::helper('easylife_news')->__('Meta'),
            'content'   => $this->getLayout()->createBlock('easylife_news/adminhtml_article_edit_tab_attributes')
                            ->setAttributes($seoAttributes)
                            ->toHtml(),
        ));
        return parent::_beforeToHtml();
    }
    public function getArticle(){
        return Mage::registry('current_article');
    }
}

app/code/local/Easylife/News/Block/Adminhtml/Article/Edit/Form.php - the form container

<?php
class Easylife_News_Block_Adminhtml_Article_Edit_Form
    extends Mage_Adminhtml_Block_Widget_Form {
    protected function _prepareForm() {
        $form = new Varien_Data_Form(array(
                        'id'         => 'edit_form',
                        'action'     => $this->getUrl('*/*/save', array('id' => $this->getRequest()->getParam('id'), 'store' => $this->getRequest()->getParam('store'))),
                        'method'     => 'post',
                        'enctype'    => 'multipart/form-data'
                    )
        );
        $form->setUseContainer(true);
        $this->setForm($form);
        return parent::_prepareForm();
    }
}

app/code/local/Easylife/News/Block/Adminhtml/Article/Edit/Tab/Attribtues.php - the attributes contained in a tab.

<?php
class Easylife_News_Block_Adminhtml_Article_Edit_Tab_Attributes
    extends Mage_Adminhtml_Block_Widget_Form {
    protected function _prepareForm() {
        $form = new Varien_Data_Form();
        $form->setDataObject(Mage::registry('current_article'));
        $fieldset = $form->addFieldset('info',
            array(
                'legend'=>Mage::helper('easylife_news')->__('Article Information'),
                 'class'=>'fieldset-wide',
            )
        );
        $attributes = $this->getAttributes();
        foreach ($attributes as $attribute){
            $attribute->setEntity(Mage::getResourceModel('easylife_news/article'));
        }
        $this->_setFieldset($attributes, $fieldset, array());
        $formValues = Mage::registry('current_article')->getData();
        $form->addValues($formValues);
        $form->setFieldNameSuffix('article');
        $this->setForm($form);
    }
    protected function _prepareLayout() {
        Varien_Data_Form::setElementRenderer(
            $this->getLayout()->createBlock('adminhtml/widget_form_renderer_element')
        );
        Varien_Data_Form::setFieldsetRenderer(
            $this->getLayout()->createBlock('adminhtml/widget_form_renderer_fieldset')
        );
        Varien_Data_Form::setFieldsetElementRenderer(
            $this->getLayout()->createBlock('easylife_news/adminhtml_news_renderer_fieldset_element')
        );
    }
    protected function _getAdditionalElementTypes(){
        return array(
            'file'    => Mage::getConfig()->getBlockClassName('easylife_news/adminhtml_article_helper_file'),
            'image' => Mage::getConfig()->getBlockClassName('easylife_news/adminhtml_article_helper_image'),
            'textarea' => Mage::getConfig()->getBlockClassName('adminhtml/catalog_helper_form_wysiwyg')
        );
    }
    public function getArticle() {
        return Mage::registry('current_article');
    }
}

app/code/local/Easylfe/News/Block/Adminhtml/Article/Helper/File.php - block helper for rendering file elements.

<?php
class Easylife_News_Block_Adminhtml_Article_Helper_File
    extends Varien_Data_Form_Element_Abstract {
    public function __construct($data){
        parent::__construct($data);
        $this->setType('file');
    }
    public function getElementHtml(){
        $html = '';
        $this->addClass('input-file');
        $html.= parent::getElementHtml();
        if ($this->getValue()) {
            $url = $this->_getUrl();
            if( !preg_match("/^http\:\/\/|https\:\/\//", $url) ) {
                $url = Mage::helper('easylife_news/article')->getFileBaseUrl() . $url;
            }
            $html .= '<br /><a href="'.$url.'">'.$this->_getUrl().'</a> ';
        }
        $html.= $this->_getDeleteCheckbox();
        return $html;
    }
    protected function _getDeleteCheckbox(){
        $html = '';
        if ($this->getValue()) {
            $label = Mage::helper('easylife_news')->__('Delete File');
            $html .= '<span class="delete-image">';
            $html .= '<input type="checkbox" name="'.parent::getName().'[delete]" value="1" class="checkbox" id="'.$this->getHtmlId().'_delete"'.($this->getDisabled() ? ' disabled="disabled"': '').'/>';
            $html .= '<label for="'.$this->getHtmlId().'_delete"'.($this->getDisabled() ? ' class="disabled"' : '').'> '.$label.'</label>';
            $html .= $this->_getHiddenInput();
            $html .= '</span>';
        }
        return $html;
    }
    protected function _getHiddenInput(){
        return '<input type="hidden" name="'.parent::getName().'[value]" value="'.$this->getValue().'" />';
    }
    protected function _getUrl(){
        return $this->getValue();
    }
    public function getName(){
        return $this->getData('name');
    }
}

app/code/local/Easylfe/News/Block/Adminhtml/Article/Helper/Image.php - block helper for rendering image elements.

<?php
class Easylife_News_Block_Adminhtml_Article_Helper_Image
    extends Varien_Data_Form_Element_Image {
    protected function _getUrl(){
        $url = false;
        if ($this->getValue()) {
            $url = Mage::helper('easylife_news/article_image')->getImageBaseUrl().$this->getValue();
        }
        return $url;
    }
}

app/code/local/Easylife/News/Block/Adminhtml/Attribute.php - main block for managing attributes

<?php
class Easylife_News_Block_Adminhtml_Article_Attribute
    extends Mage_Adminhtml_Block_Widget_Grid_Container {
    public function __construct(){
        $this->_controller = 'adminhtml_article_attribute';
        $this->_blockGroup = 'easylife_news';
        $this->_headerText = Mage::helper('easylife_news')->__('Manage Article Attributes');
        parent::__construct();
        $this->_updateButton('add', 'label', Mage::helper('easylife_news')->__('Add New Article Attribute'));
    }
}

app/code/local/Easylife/News/Block/Adminhtml/Attribute/Grid.php - the attribute grid block

<?php
class Easylife_News_Block_Adminhtml_Article_Attribute_Grid
    extends Mage_Eav_Block_Adminhtml_Attribute_Grid_Abstract {
    protected function _prepareCollection(){
        $collection = Mage::getResourceModel('easylife_news/article_attribute_collection')
            ->addVisibleFilter();
        $this->setCollection($collection);
        return parent::_prepareCollection();
    }
    protected function _prepareColumns() {
        parent::_prepareColumns();
        $this->addColumnAfter('is_global', array(
            'header'=>Mage::helper('easylife_news')->__('Scope'),
            'sortable'=>true,
            'index'=>'is_global',
            'type' => 'options',
            'options' => array(
                Mage_Catalog_Model_Resource_Eav_Attribute::SCOPE_STORE   =>Mage::helper('easylife_news')->__('Store View'),
                Mage_Catalog_Model_Resource_Eav_Attribute::SCOPE_WEBSITE =>Mage::helper('easylife_news')->__('Website'),
                Mage_Catalog_Model_Resource_Eav_Attribute::SCOPE_GLOBAL  =>Mage::helper('easylife_news')->__('Global'),
            ),
            'align' => 'center',
        ), 'is_user_defined');
        return $this;
    }
}

app/code/local/Easylife/News/Block/Adminhtml/Attribute/Edit.php - the attribute edit form.

<?php
class Easylife_News_Block_Adminhtml_Article_Attribute_Edit
    extends Mage_Adminhtml_Block_Widget_Form_Container {
    public function __construct() {
        $this->_objectId = 'attribute_id';
        $this->_controller = 'adminhtml_article_attribute';
        $this->_blockGroup = 'easylife_news';

        parent::__construct();
        $this->_addButton(
            'save_and_edit_button',
            array(
                'label'     => Mage::helper('easylife_news')->__('Save and Continue Edit'),
                'onclick'   => 'saveAndContinueEdit()',
                'class'     => 'save'
            ),
            100
        );
        $this->_updateButton('save', 'label', Mage::helper('easylife_news')->__('Save Article Attribute'));
        $this->_updateButton('save', 'onclick', 'saveAttribute()');

        if (!Mage::registry('entity_attribute')->getIsUserDefined()) {
            $this->_removeButton('delete');
        } else {
            $this->_updateButton('delete', 'label', Mage::helper('easylife_news')->__('Delete Article Attribute'));
        }
    }
    public function getHeaderText(){
        if (Mage::registry('entity_attribute')->getId()) {
            $frontendLabel = Mage::registry('entity_attribute')->getFrontendLabel();
            if (is_array($frontendLabel)) {
                $frontendLabel = $frontendLabel[0];
            }
            return Mage::helper('easylife_news')->__('Edit Article Attribute "%s"', $this->htmlEscape($frontendLabel));
        }
        else {
            return Mage::helper('easylife_news')->__('New Article Attribute');
        }
    }
    public function getValidationUrl(){
        return $this->getUrl('*/*/validate', array('_current'=>true));
    }
    public function getSaveUrl(){
        return $this->getUrl('*/'.$this->_controller.'/save', array('_current'=>true, 'back'=>null));
    }
}

app/code/local/Easylife/News/Block/Adminhtml/Attribute/Edit/Tabs.php - the attribute edit tabs

<?php
class Easylife_News_Block_Adminhtml_Article_Attribute_Edit_Tabs
    extends Mage_Adminhtml_Block_Widget_Tabs {
    public function __construct() {
        parent::__construct();
        $this->setId('article_attribute_tabs');
        $this->setDestElementId('edit_form');
        $this->setTitle(Mage::helper('easylife_news')->__('Attribute Information'));
    }
    protected function _beforeToHtml() {
        $this->addTab('main', array(
            'label'     => Mage::helper('easylife_news')->__('Properties'),
            'title'     => Mage::helper('easylife_news')->__('Properties'),
            'content'   => $this->getLayout()->createBlock('easylife_news/adminhtml_article_attribute_edit_tab_main')->toHtml(),
            'active'    => true
        ));
        $this->addTab('labels', array(
            'label'     => Mage::helper('easylife_news')->__('Manage Label / Options'),
            'title'     => Mage::helper('easylife_news')->__('Manage Label / Options'),
            'content'   => $this->getLayout()->createBlock('easylife_news/adminhtml_article_attribute_edit_tab_options')->toHtml(),
        ));
        return parent::_beforeToHtml();
    }
}

app/code/local/Easylife/News/Block/Adminhtml/Attribute/Edit/Form.php - the attribute edit form container

<?php
class Easylife_News_Block_Adminhtml_Article_Attribute_Edit_Form
    extends Mage_Adminhtml_Block_Widget_Form {
    protected function _prepareForm() {
        $form = new Varien_Data_Form(array('id' => 'edit_form', 'action' => $this->getUrl('adminhtml/news_article_attribute/save'), 'method' => 'post'));
        $form->setUseContainer(true);
        $this->setForm($form);
        return parent::_prepareForm();
    }
}

app/code/local/Easylife/News/Block/Adminhtml/Attribute/Edit/Tab/Main.php - the attribute edit main tab:

<?php
class Easylife_News_Block_Adminhtml_Article_Attribute_Edit_Tab_Main
    extends Mage_Eav_Block_Adminhtml_Attribute_Edit_Main_Abstract {
    protected function _prepareForm(){
        parent::_prepareForm();
        $attributeObject = $this->getAttributeObject();
        $form = $this->getForm();
        $fieldset = $form->getElement('base_fieldset');
        $frontendInputElm = $form->getElement('frontend_input');
        $additionalTypes = array(
            array(
                'value' => 'image',
                'label' => Mage::helper('easylife_news')->__('Image')
            ),
            array(
                'value' => 'file',
                'label' => Mage::helper('easylife_news')->__('File')
            )
        );
        $response = new Varien_Object();
        $response->setTypes(array());
        Mage::dispatchEvent('adminhtml_article_attribute_types', array('response'=>$response));
        $_disabledTypes = array();
        $_hiddenFields = array();
        foreach ($response->getTypes() as $type) {
            $additionalTypes[] = $type;
            if (isset($type['hide_fields'])) {
                $_hiddenFields[$type['value']] = $type['hide_fields'];
            }
            if (isset($type['disabled_types'])) {
                $_disabledTypes[$type['value']] = $type['disabled_types'];
            }
        }
        Mage::register('attribute_type_hidden_fields', $_hiddenFields);
        Mage::register('attribute_type_disabled_types', $_disabledTypes);

        $frontendInputValues = array_merge($frontendInputElm->getValues(), $additionalTypes);
        $frontendInputElm->setValues($frontendInputValues);

        $yesnoSource = Mage::getModel('adminhtml/system_config_source_yesno')->toOptionArray();

        $scopes = array(
            Mage_Catalog_Model_Resource_Eav_Attribute::SCOPE_STORE =>Mage::helper('easylife_news')->__('Store View'),
            Mage_Catalog_Model_Resource_Eav_Attribute::SCOPE_WEBSITE =>Mage::helper('easylife_news')->__('Website'),
            Mage_Catalog_Model_Resource_Eav_Attribute::SCOPE_GLOBAL =>Mage::helper('easylife_news')->__('Global'),
        );

        $fieldset->addField('is_global', 'select', array(
            'name'  => 'is_global',
            'label' => Mage::helper('easylife_news')->__('Scope'),
            'title' => Mage::helper('easylife_news')->__('Scope'),
            'note'  => Mage::helper('easylife_news')->__('Declare attribute value saving scope'),
            'values'=> $scopes
        ), 'attribute_code');
        $fieldset->addField('position', 'text', array(
            'name'  => 'position',
            'label' => Mage::helper('easylife_news')->__('Position'),
            'title' => Mage::helper('easylife_news')->__('Position'),
            'note'  => Mage::helper('easylife_news')->__('Position in the admin form'),
        ), 'is_global');
        $fieldset->addField('note', 'textarea', array(
            'name'  => 'note',
            'label' => Mage::helper('easylife_news')->__('Note'),
            'title' => Mage::helper('easylife_news')->__('Note'),
            'note'  => Mage::helper('easylife_news')->__('Text to appear below the input.'),
        ), 'position');

        $fieldset->removeField('default_value_text');
        $fieldset->removeField('default_value_yesno');
        $fieldset->removeField('default_value_date');
        $fieldset->removeField('default_value_textarea');
        $fieldset->removeField('is_unique');
        // frontend properties fieldset
        $fieldset = $form->addFieldset('front_fieldset', array('legend'=>Mage::helper('easylife_news')->__('Frontend Properties')));


        $fieldset->addField('is_wysiwyg_enabled', 'select', array(
            'name' => 'is_wysiwyg_enabled',
            'label' => Mage::helper('easylife_news')->__('Enable WYSIWYG'),
            'title' => Mage::helper('easylife_news')->__('Enable WYSIWYG'),
            'values' => $yesnoSource,
        ));
        Mage::dispatchEvent('easylife_news_adminhtml_article_attribute_edit_prepare_form', array(
            'form'      => $form,
            'attribute' => $attributeObject
        ));
        return $this;
    }
}

app/code/local/Easylife/News/Block/Adminhtml/Attribute/Edit/Tab/Options.php - tab for rendering attribute options

<?php
class Easylife_News_Block_Adminhtml_Article_Attribute_Edit_Tab_Options
    extends Mage_Eav_Block_Adminhtml_Attribute_Edit_Options_Abstract {

}

app/code/local/Easylife/News/Block/Adminhtml/News/Helper/Form/Wysiwyg/Content.php - helper block for WYSIWYG elements

<?php
class Easylife_News_Block_Adminhtml_News_Helper_Form_Wysiwyg_Content
    extends Mage_Adminhtml_Block_Widget_Form {
    protected function _prepareForm(){
        $form = new Varien_Data_Form(array('id' => 'wysiwyg_edit_form', 'action' => $this->getData('action'), 'method' => 'post'));
        $config['document_base_url']     = $this->getData('store_media_url');
        $config['store_id']              = $this->getData('store_id');
        $config['add_variables']         = false;
        $config['add_widgets']           = false;
        $config['add_directives']        = true;
        $config['use_container']         = true;
        $config['container_class']       = 'hor-scroll';
        $editorConfig = Mage::getSingleton('cms/wysiwyg_config')->getConfig($config);
        $editorConfig->setData('files_browser_window_url', Mage::getSingleton('adminhtml/url')->getUrl('adminhtml/cms_wysiwyg_images/index'));
        $form->addField($this->getData('editor_element_id'), 'editor', array(
            'name'      => 'content',
            'style'     => 'width:725px;height:460px',
            'required'  => true,
            'force_load' => true,
            'config'    => $editorConfig
        ));
        $this->setForm($form);
        return parent::_prepareForm();
    }
}

now look for part 4.

share|improve this answer

Part 4

app/code/local/Easylife/News/Block/Adminhtml/News/Renderer/Fieldset/Element.php - fieldset element renderer.

<?php
class Easylife_News_Block_Adminhtml_News_Renderer_Fieldset_Element
    extends Mage_Adminhtml_Block_Widget_Form_Renderer_Fieldset_Element {
    protected function _construct() {
        $this->setTemplate('easylife_news/form/renderer/fieldset/element.phtml');
    }
    public function getDataObject() {
        return $this->getElement()->getForm()->getDataObject();
    }

    public function getAttribute() {
        return $this->getElement()->getEntityAttribute();
    }

    public function getAttributeCode(){
        return $this->getAttribute()->getAttributeCode();
    }
    public function canDisplayUseDefault(){
        if ($attribute = $this->getAttribute()) {
            if (!$this->isScopeGlobal($attribute)
                && $this->getDataObject()
                && $this->getDataObject()->getId()
                && $this->getDataObject()->getStoreId()) {
                return true;
            }
        }
        return false;
    }
    public function usedDefault(){
        $defaultValue = $this->getDataObject()->getAttributeDefaultValue($this->getAttribute()->getAttributeCode());
        return !$defaultValue;
    }
    public function checkFieldDisable(){
        if ($this->canDisplayUseDefault() && $this->usedDefault()) {
            $this->getElement()->setDisabled(true);
        }
        return $this;
    }
    public function getScopeLabel(){
        $html = '';
        $attribute = $this->getElement()->getEntityAttribute();
        if (!$attribute || Mage::app()->isSingleStoreMode()) {
            return $html;
        }
        if ($this->isScopeGlobal($attribute)) {
            $html.= Mage::helper('easylife_news')->__('[GLOBAL]');
        }
        elseif ($this->isScopeWebsite($attribute)) {
            $html.= Mage::helper('easylife_news')->__('[WEBSITE]');
        }
        elseif ($this->isScopeStore($attribute)) {
            $html.= Mage::helper('easylife_news')->__('[STORE VIEW]');
        }
        return $html;
    }
    public function getElementLabelHtml(){
        return $this->getElement()->getLabelHtml();
    }

    public function getElementHtml(){
        return $this->getElement()->getElementHtml();
    }

    public function isScopeGlobal($attribute){
        return $attribute->getIsGlobal() == 1;
    }
    public function isScopeWebsite($attribute){
        return $attribute->getIsGlobal() == 2;
    }
    public function isScopeStore($attribute){
        return !$this->isScopeGlobal($attribute) && !$this->isScopeWebsite($attribute);
    }
}

app/code/local/Easylife/News/Block/Article/List.php - the article frontend list block.

<?php
class Easylife_News_Block_Article_List
    extends Mage_Core_Block_Template {
     public function __construct(){
        parent::__construct();
         $articles = Mage::getResourceModel('easylife_news/article_collection')
                         ->setStoreId(Mage::app()->getStore()->getId())
                         ->addAttributeToSelect('*')
                         ->addAttributeToFilter('status', 1);
        $articles->setOrder('title', 'asc');
        $this->setArticles($articles);
    }
    protected function _prepareLayout(){
        parent::_prepareLayout();
        $pager = $this->getLayout()->createBlock('page/html_pager', 'easylife_news.article.html.pager')
            ->setCollection($this->getArticles());
        $this->setChild('pager', $pager);
        $this->getArticles()->load();
        return $this;
    }
    public function getPagerHtml(){
        return $this->getChildHtml('pager');
    }
}

app/code/local/Easylife/News/Block/Article/View.php - the article frontend view block.

<?php
class Easylife_News_Block_Article_View
    extends Mage_Core_Block_Template {
    public function getCurrentArticle(){
        return Mage::registry('current_article');
    }
}

app/code/local/Easylife/News/Block/Article/Rss.php - the article frontend RSS block.

<?php
class Easylife_News_Block_Article_Rss
    extends Mage_Rss_Block_Abstract {
    const CACHE_TAG = 'block_html_news_article_rss';
    protected function _construct(){
        $this->setCacheTags(array(self::CACHE_TAG));
        /*
        * setting cache to save the rss for 10 minutes
        */
        $this->setCacheKey('easylife_news_article_rss');
        $this->setCacheLifetime(600);
    }
    protected function _toHtml(){
        $url = Mage::helper('easylife_news/article')->getArticlesUrl();
        $title = Mage::helper('easylife_news')->__('Articles');
        $rssObj = Mage::getModel('rss/rss');
        $data = array(
            'title' => $title,
            'description' => $title,
            'link'=> $url,
            'charset' => 'UTF-8',
        );
        $rssObj->_addHeader($data);
        $collection = Mage::getModel('easylife_news/article')->getCollection()
            ->addFieldToFilter('status', 1)
            ->addAttributeToSelect('*')
            ->addAttributeToFilter('in_rss', 1)
            ->setOrder('created_at');
        $collection->load();
        foreach ($collection as $item){
            $description = '<p>';
            $description .= '<div>'.Mage::helper('easylife_news')->__('Title').': '.$item->getTitle().'</div>';
            $description .= '<div>'.Mage::helper('easylife_news')->__('Short description').': '.$item->getShortDescription().'</div>';
            $description .= '<div>'.Mage::helper('easylife_news')->__('Description').': '.$item->getDescription().'</div>';
            $description .= '<div>'.Mage::helper('easylife_news')->__('Publish Date').': '.Mage::helper('core')->formatDate($item->getPublishDate(), 'full').'</div>';
            $description .= '</p>';
            $data = array(
                'title'=>$item->getTitle(),
                'link'=>$item->getArticleUrl(),
                'description' => $description
            );
            $rssObj->_addEntry($data);
        }
        return $rssObj->createRssXml();
    }
}

Now the Router for url rewrites.

app/code/local/Easylife/News/Controller/Router.php - the router

<?php 
class Easylife_News_Controller_Router
    extends Mage_Core_Controller_Varien_Router_Abstract {
    public function initControllerRouters($observer){
        $front = $observer->getEvent()->getFront();
        $front->addRouter('easylife_news', $this);
        return $this;
    }
    public function match(Zend_Controller_Request_Http $request){
        if (!Mage::isInstalled()) {
            Mage::app()->getFrontController()->getResponse()
                ->setRedirect(Mage::getUrl('install'))
                ->sendResponse();
            exit;
        }
        $urlKey = trim($request->getPathInfo(), '/');
        $check = array(); //you can add here multiple entities
        $check['article'] = new Varien_Object(array(
            'prefix'        => Mage::getStoreConfig('easylife_news/article/url_prefix'),
            'suffix'        => Mage::getStoreConfig('easylife_news/article/url_suffix'),
            'model'         =>'easylife_news/article',
            'controller'    => 'article',
            'action'        => 'view',
            'param'         => 'id',
        ));
        foreach ($check as $key=>$settings) {
            if ($settings['prefix']){
                $parts = explode('/', $urlKey);
                if ($parts[0] != $settings['prefix'] || count($parts) != 2){
                    continue;
                }
                $urlKey = $parts[1];
            }
            if ($settings['suffix']){
                $urlKey = substr($urlKey, 0 , -strlen($settings['suffix']) - 1);
            }
            $model = Mage::getModel($settings->getModel());
            $id = $model->checkUrlKey($urlKey, Mage::app()->getStore()->getId());
            if ($id){
                if ($settings->getCheckPath() && !$model->load($id)->getStatusPath()) {
                    continue;
                }
                $request->setModuleName('news')
                    ->setControllerName($settings->getController())
                    ->setActionName($settings->getAction())
                    ->setParam($settings->getParam(), $id);
                $request->setAlias(
                    Mage_Core_Model_Url_Rewrite::REWRITE_REQUEST_PATH_ALIAS,
                    $urlKey
                );
                return true;
            }
        }
        return false;
    }
}

Now the controllers

app/code/local/Easylife/News/controllers/Adminhtml/News/ArticleController.php

<?php
class Easylife_News_Adminhtml_News_ArticleController
    extends Mage_Adminhtml_Controller_Action {
    protected function _construct(){
        $this->setUsedModuleName('Easylife_News');
    }
    protected function _initArticle(){
        $this->_title($this->__('News'))
             ->_title($this->__('Manage Articles'));

        $articleId  = (int) $this->getRequest()->getParam('id');
        $article    = Mage::getModel('easylife_news/article')
            ->setStoreId($this->getRequest()->getParam('store', 0));

        if ($articleId) {
            $article->load($articleId);
        }
        Mage::register('current_article', $article);
        return $article;
    }
    public function indexAction(){
        $this->_title($this->__('News'))
             ->_title($this->__('Manage Articles'));
        $this->loadLayout();
        $this->renderLayout();
    }
    public function newAction(){
        $this->_forward('edit');
    }
    public function editAction(){
        $articleId  = (int) $this->getRequest()->getParam('id');

        $article = $this->_initArticle();
        if ($articleId && !$article->getId()) {
            $this->_getSession()->addError(Mage::helper('easylife_news')->__('This article no longer exists.'));
            $this->_redirect('*/*/');
            return;
        }
        if ($data = Mage::getSingleton('adminhtml/session')->getArticleData(true)){
            $article->setData($data);
        }
        $this->_title($article->getTitle());
        Mage::dispatchEvent('easylife_news_article_edit_action', array('article' => $article));
        $this->loadLayout();
        if ($article->getId()){
            if (!Mage::app()->isSingleStoreMode() && ($switchBlock = $this->getLayout()->getBlock('store_switcher'))) {
                $switchBlock->setDefaultStoreName(Mage::helper('easylife_news')->__('Default Values'))
                    ->setSwitchUrl($this->getUrl('*/*/*', array('_current'=>true, 'active_tab'=>null, 'tab' => null, 'store'=>null)));
            }
        }
        else{
            $this->getLayout()->getBlock('left')->unsetChild('store_switcher');
        }
        $this->getLayout()->getBlock('head')->setCanLoadExtJs(true);
        $this->renderLayout();
    }
    public function saveAction(){
        $storeId        = $this->getRequest()->getParam('store');
        $redirectBack   = $this->getRequest()->getParam('back', false);
        $articleId      = $this->getRequest()->getParam('id');
        $isEdit         = (int)($this->getRequest()->getParam('id') != null);
        $data = $this->getRequest()->getPost();
        if ($data) {
            $article    = $this->_initArticle();
            $articleData = $this->getRequest()->getPost('article', array());
            $article->addData($articleData);
            $article->setAttributeSetId($article->getDefaultAttributeSetId());
            if ($useDefaults = $this->getRequest()->getPost('use_default')) {
                foreach ($useDefaults as $attributeCode) {
                    $article->setData($attributeCode, false);
                }
            }
            try {
                $article->save();
                $articleId = $article->getId();
                $this->_getSession()->addSuccess(Mage::helper('easylife_news')->__('Article was saved'));
            }
            catch (Mage_Core_Exception $e) {
                Mage::logException($e);
                $this->_getSession()->addError($e->getMessage())
                    ->setArticleData($articleData);
                $redirectBack = true;
            }
            catch (Exception $e){
                Mage::logException($e);
                $this->_getSession()->addError(Mage::helper('easylife_news')->__('Error saving article'))
                    ->setArticleData($articleData);
                $redirectBack = true;
            }
        }
        if ($redirectBack) {
            $this->_redirect('*/*/edit', array(
                'id'    => $articleId,
                '_current'=>true
            ));
        }
        else {
            $this->_redirect('*/*/', array('store'=>$storeId));
        }
    }
    public function deleteAction(){
        if ($id = $this->getRequest()->getParam('id')) {
            $article = Mage::getModel('easylife_news/article')->load($id);
            try {
                $article->delete();
                $this->_getSession()->addSuccess(Mage::helper('easylife_news')->__('The articles has been deleted.'));
            }
            catch (Exception $e) {
                $this->_getSession()->addError($e->getMessage());
            }
        }
        $this->getResponse()->setRedirect($this->getUrl('*/*/', array('store'=>$this->getRequest()->getParam('store'))));
    }
    public function massDeleteAction() {
        $articleIds = $this->getRequest()->getParam('article');
        if (!is_array($articleIds)) {
            $this->_getSession()->addError($this->__('Please select articles.'));
        }
        else {
            try {
                foreach ($articleIds as $articleId) {
                    $article = Mage::getSingleton('easylife_news/article')->load($articleId);
                    Mage::dispatchEvent('easylife_news_controller_article_delete', array('article' => $article));
                    $article->delete();
                }
                $this->_getSession()->addSuccess(
                    Mage::helper('easylife_news')->__('Total of %d record(s) have been deleted.', count($articleIds))
                );
            } catch (Exception $e) {
                $this->_getSession()->addError($e->getMessage());
            }
        }
        $this->_redirect('*/*/index');
    }
    public function massStatusAction(){
        $articleIds = $this->getRequest()->getParam('article');
        if(!is_array($articleIds)) {
            Mage::getSingleton('adminhtml/session')->addError(Mage::helper('easylife_news')->__('Please select articles.'));
        }
        else {
            try {
                foreach ($articleIds as $articleId) {
                $article = Mage::getSingleton('easylife_news/article')->load($articleId)
                            ->setStatus($this->getRequest()->getParam('status'))
                            ->setIsMassupdate(true)
                            ->save();
                }
                $this->_getSession()->addSuccess($this->__('Total of %d articles were successfully updated.', count($articleIds)));
            }
            catch (Mage_Core_Exception $e){
                Mage::getSingleton('adminhtml/session')->addError($e->getMessage());
            }
            catch (Exception $e) {
                Mage::getSingleton('adminhtml/session')->addError(Mage::helper('easylife_news')->__('There was an error updating articles.'));
                Mage::logException($e);
            }
        }
        $this->_redirect('*/*/index');
    }
    public function gridAction(){
        $this->loadLayout();
        $this->renderLayout();
    }
     protected function _isAllowed(){
        return Mage::getSingleton('admin/session')->isAllowed('cms/easylife_news/article');
    }

    public function exportCsvAction(){
        $fileName   = 'articles.csv';
        $content    = $this->getLayout()->createBlock('easylife_news/adminhtml_article_grid')
            ->getCsvFile();
        $this->_prepareDownloadResponse($fileName, $content);
    }
    public function exportExcelAction(){
        $fileName   = 'article.xls';
        $content    = $this->getLayout()->createBlock('easylife_news/adminhtml_article_grid')
            ->getExcelFile();
        $this->_prepareDownloadResponse($fileName, $content);
    }
    public function exportXmlAction(){
        $fileName   = 'article.xml';
        $content    = $this->getLayout()->createBlock('easylife_news/adminhtml_article_grid')
            ->getXml();
        $this->_prepareDownloadResponse($fileName, $content);
    }
    public function wysiwygAction() {
        $elementId = $this->getRequest()->getParam('element_id', md5(microtime()));
        $storeId = $this->getRequest()->getParam('store_id', 0);
        $storeMediaUrl = Mage::app()->getStore($storeId)->getBaseUrl(Mage_Core_Model_Store::URL_TYPE_MEDIA);

        $content = $this->getLayout()->createBlock('easylife_news/adminhtml_news_helper_form_wysiwyg_content', '', array(
            'editor_element_id' => $elementId,
            'store_id'          => $storeId,
            'store_media_url'   => $storeMediaUrl,
        ));
        $this->getResponse()->setBody($content->toHtml());
    }
}

app/code/local/Easylife/News/controllers/ArticleController.php - the frontend article controller

<?php
class Easylife_News_ArticleController
    extends Mage_Core_Controller_Front_Action {
    public function indexAction(){
         $this->loadLayout();
         $this->_initLayoutMessages('catalog/session');
         $this->_initLayoutMessages('customer/session');
         $this->_initLayoutMessages('checkout/session');
         if (Mage::helper('easylife_news/article')->getUseBreadcrumbs()){
             if ($breadcrumbBlock = $this->getLayout()->getBlock('breadcrumbs')){
                 $breadcrumbBlock->addCrumb('home', array(
                            'label'    => Mage::helper('easylife_news')->__('Home'),
                            'link'     => Mage::getUrl(),
                        )
                 );
                 $breadcrumbBlock->addCrumb('articles', array(
                            'label'    => Mage::helper('easylife_news')->__('Articles'),
                            'link'    => '',
                    )
                 );
             }
         }
        $headBlock = $this->getLayout()->getBlock('head');
        if ($headBlock) {
            $headBlock->setTitle(Mage::getStoreConfig('easylife_news/article/meta_title'));
            $headBlock->setKeywords(Mage::getStoreConfig('easylife_news/article/meta_keywords'));
            $headBlock->setDescription(Mage::getStoreConfig('easylife_news/article/meta_description'));
        }
        $this->renderLayout();
    }
    protected function _initArticle(){
        $articleId   = $this->getRequest()->getParam('id', 0);
        $article     = Mage::getModel('easylife_news/article')
                        ->setStoreId(Mage::app()->getStore()->getId())
                        ->load($articleId);
        if (!$article->getId()){
            return false;
        }
        elseif (!$article->getStatus()){
            return false;
        }
        return $article;
    }
    public function viewAction(){
        $article = $this->_initArticle();
        if (!$article) {
            $this->_forward('no-route');
            return;
        }
        Mage::register('current_article', $article);
        $this->loadLayout();
        $this->_initLayoutMessages('catalog/session');
        $this->_initLayoutMessages('customer/session');
        $this->_initLayoutMessages('checkout/session');
        if ($root = $this->getLayout()->getBlock('root')) {
            $root->addBodyClass('news-article news-article' . $article->getId());
        }
        if (Mage::helper('easylife_news/article')->getUseBreadcrumbs()){
            if ($breadcrumbBlock = $this->getLayout()->getBlock('breadcrumbs')){
                $breadcrumbBlock->addCrumb('home', array(
                            'label'    => Mage::helper('easylife_news')->__('Home'),
                            'link'     => Mage::getUrl(),
                        )
                );
                $breadcrumbBlock->addCrumb('articles', array(
                            'label'    => Mage::helper('easylife_news')->__('Articles'),
                            'link'    => Mage::helper('easylife_news/article')->getArticlesUrl(),
                    )
                );
                $breadcrumbBlock->addCrumb('article', array(
                            'label'    => $article->getTitle(),
                            'link'    => '',
                    )
                );
            }
        }
        $headBlock = $this->getLayout()->getBlock('head');
        if ($headBlock) {
            if ($article->getMetaTitle()){
                $headBlock->setTitle($article->getMetaTitle());
            }
            else{
                $headBlock->setTitle($article->getTitle());
            }
            $headBlock->setKeywords($article->getMetaKeywords());
            $headBlock->setDescription($article->getMetaDescription());
        }
        $this->renderLayout();
    }
    public function rssAction(){
        if (Mage::helper('easylife_news/article')->isRssEnabled()) {
            $this->getResponse()->setHeader('Content-type', 'text/xml; charset=UTF-8');
            $this->loadLayout(false);
            $this->renderLayout();
        }
        else {
            $this->getResponse()->setHeader('HTTP/1.1','404 Not Found');
            $this->getResponse()->setHeader('Status','404 File not found');
            $this->_forward('nofeed','index','rss');
        }
    }
}

Look for part 5

share|improve this answer

Part 5

app/code/local/Easylife/News/controllers/Adminhtml/News/Article/AttributeController.php - the attribute controller

<?php
class Easylife_News_Adminhtml_News_Article_AttributeController
    extends Mage_Adminhtml_Controller_Action {
    protected $_entityTypeId;
    public function preDispatch() {
        parent::preDispatch();
        $this->_entityTypeId = Mage::getModel('eav/entity')->setType(Easylife_News_Model_Article::ENTITY)->getTypeId();
    }
    protected function _initAction(){
        $this->_title(Mage::helper('easylife_news')->__('Article'))
             ->_title(Mage::helper('easylife_news')->__('Attributes'))
             ->_title(Mage::helper('easylife_news')->__('Manage Attributes'));

        $this->loadLayout()
            ->_setActiveMenu('cms/easylife_news/article_attributes');
        return $this;
    }
    public function indexAction(){
        $this->_initAction()
            ->renderLayout();
    }
    public function newAction(){
        $this->_forward('edit');
    }

    public function editAction(){
        $id = $this->getRequest()->getParam('attribute_id');
        $model = Mage::getModel('easylife_news/resource_eav_attribute')
            ->setEntityTypeId($this->_entityTypeId);
        if ($id) {
            $model->load($id);
            if (! $model->getId()) {
                Mage::getSingleton('adminhtml/session')->addError(
                    Mage::helper('easylife_news')->__('This article attribute no longer exists'));
                $this->_redirect('*/*/');
                return;
            }
            // entity type check
            if ($model->getEntityTypeId() != $this->_entityTypeId) {
                Mage::getSingleton('adminhtml/session')->addError(
                    Mage::helper('easylife_news')->__('This article attribute cannot be edited.'));
                $this->_redirect('*/*/');
                return;
            }
        }
        // set entered data if was error when we do save
        $data = Mage::getSingleton('adminhtml/session')->getAttributeData(true);
        if (! empty($data)) {
            $model->addData($data);
        }
        Mage::register('entity_attribute', $model);
        $this->_initAction();
        $this->_title($id ? $model->getName() : Mage::helper('easylife_news')->__('New Article Attribute'));
        $item = $id ? Mage::helper('easylife_news')->__('Edit Article Attribute')
                    : Mage::helper('easylife_news')->__('New Article Attribute');
        $this->_addBreadcrumb($item, $item);
        $this->renderLayout();
    }

    public function validateAction(){
        $response = new Varien_Object();
        $response->setError(false);

        $attributeCode  = $this->getRequest()->getParam('attribute_code');
        $attributeId    = $this->getRequest()->getParam('attribute_id');
        $attribute = Mage::getModel('easylife_news/attribute')
            ->loadByCode($this->_entityTypeId, $attributeCode);
        if ($attribute->getId() && !$attributeId) {
            Mage::getSingleton('adminhtml/session')->addError(
                Mage::helper('easylife_news')->__('Attribute with the same code already exists'));
            $this->_initLayoutMessages('adminhtml/session');
            $response->setError(true);
            $response->setMessage($this->getLayout()->getMessagesBlock()->getGroupedHtml());
        }
        $this->getResponse()->setBody($response->toJson());
    }
    protected function _filterPostData($data){
        if ($data) {
            $helper = Mage::helper('easylife_news');
            //labels
            foreach ($data['frontend_label'] as & $value) {
                if ($value) {
                    $value = $helper->stripTags($value);
                }
            }
            //options
            if (!empty($data['option']['value'])) {
                foreach ($data['option']['value'] as &$options) {
                    foreach ($options as &$label) {
                        $label = $helper->stripTags($label);
                    }
                }
            }
            //default value
            if (!empty($data['default_value'])) {
                $data['default_value'] = $helper->stripTags($data['default_value']);
            }
            if (!empty($data['default_value_text'])) {
                $data['default_value_text'] = $helper->stripTags($data['default_value_text']);
            }
            if (!empty($data['default_value_textarea'])) {
                $data['default_value_textarea'] = $helper->stripTags($data['default_value_textarea']);
            }
        }
        return $data;
    }
    public function saveAction(){
        $data = $this->getRequest()->getPost();
        if ($data) {
            $session = Mage::getSingleton('adminhtml/session');
            $redirectBack   = $this->getRequest()->getParam('back', false);
            $model = Mage::getModel('easylife_news/resource_eav_attribute');
            $helper = Mage::helper('easylife_news/article');
            $id = $this->getRequest()->getParam('attribute_id');
            //validate attribute_code
            if (isset($data['attribute_code'])) {
                $validatorAttrCode = new Zend_Validate_Regex(array('pattern' => '/^[a-z_0-9]{1,255}$/'));
                if (!$validatorAttrCode->isValid($data['attribute_code'])) {
                    $session->addError(
                        Mage::helper('easylife_news')->__('Attribute code is invalid. Please use only letters (a-z), numbers (0-9) or underscore(_) in this field, first character should be a letter.'));
                    $this->_redirect('*/*/edit', array('attribute_id' => $id, '_current' => true));
                    return;
                }
            }
            if ($id) {
                $model->load($id);
                if (!$model->getId()) {
                    $session->addError(
                        Mage::helper('easylife_news')->__('This attribute no longer exists'));
                    $this->_redirect('*/*/');
                    return;
                }

                // entity type check
                if ($model->getEntityTypeId() != $this->_entityTypeId) {
                    $session->addError(
                        Mage::helper('easylife_news')->__('This attribute cannot be updated.'));
                    $session->setAttributeData($data);
                    $this->_redirect('*/*/');
                    return;
                }

                $data['attribute_code'] = $model->getAttributeCode();
                $data['is_user_defined'] = $model->getIsUserDefined();
                $data['frontend_input'] = $model->getFrontendInput();
            } else {
                $data['source_model'] = $helper->getAttributeSourceModelByInputType($data['frontend_input']);
                $data['backend_model'] = $helper->getAttributeBackendModelByInputType($data['frontend_input']);
            }

            if (is_null($model->getIsUserDefined()) || $model->getIsUserDefined() != 0) {
                $data['backend_type'] = $model->getBackendTypeByInput($data['frontend_input']);
            }
            $defaultValueField = $model->getDefaultValueByInput($data['frontend_input']);
            if ($defaultValueField) {
                $data['default_value'] = $this->getRequest()->getParam($defaultValueField);
            }
            //filter
            $data = $this->_filterPostData($data);
            $model->addData($data);
            if (!$id) {
                $model->setEntityTypeId($this->_entityTypeId);
                $model->setIsUserDefined(1);
                $model->setIsVisible(1);
            }
            try {
                $model->save();
                $session->addSuccess(
                    Mage::helper('easylife_news')->__('The article attribute has been saved.'));

                /**
                 * Clear translation cache because attribute labels are stored in translation
                 */
                Mage::app()->cleanCache(array(Mage_Core_Model_Translate::CACHE_TAG));
                $session->setAttributeData(false);
                if ($redirectBack) {
                    $this->_redirect('*/*/edit', array('attribute_id' => $model->getId(),'_current'=>true));
                } else {
                    $this->_redirect('*/*/', array());
                }
                return;
            } catch (Exception $e) {
                $session->addError($e->getMessage());
                $session->setAttributeData($data);
                $this->_redirect('*/*/edit', array('attribute_id' => $id, '_current' => true));
                return;
            }
        }
        $this->_redirect('*/*/');
    }
    public function deleteAction(){
        if ($id = $this->getRequest()->getParam('attribute_id')) {
            $model = Mage::getModel('easylife_news/resource_eav_attribute');

            // entity type check
            $model->load($id);
            if ($model->getEntityTypeId() != $this->_entityTypeId) {
                Mage::getSingleton('adminhtml/session')->addError(
                    Mage::helper('easylife_news')->__('This attribute cannot be deleted.'));
                $this->_redirect('*/*/');
                return;
            }
            try {
                $model->delete();
                Mage::getSingleton('adminhtml/session')->addSuccess(
                    Mage::helper('easylife_news')->__('The article attribute has been deleted.'));
                $this->_redirect('*/*/');
                return;
            }
            catch (Exception $e) {
                Mage::getSingleton('adminhtml/session')->addError($e->getMessage());
                $this->_redirect('*/*/edit', array('attribute_id' => $this->getRequest()->getParam('attribute_id')));
                return;
            }
        }
        Mage::getSingleton('adminhtml/session')->addError(
            Mage::helper('easylife_news')->__('Unable to find an attribute to delete.'));
        $this->_redirect('*/*/');
    }
    protected function _isAllowed(){
        return Mage::getSingleton('admin/session')->isAllowed('cms/easylife_news/article_attributes');
    }
}

Now the helpers:

app/code/local/Easylife/News/Helper/Data.php - the main helper

<?php
class Easylife_News_Helper_Data
    extends Mage_Core_Helper_Abstract {
    public function convertOptions($options){
        $converted = array();
        foreach ($options as $option){
            if (isset($option['value']) && !is_array($option['value']) && isset($option['label']) && !is_array($option['label'])){
                $converted[$option['value']] = $option['label'];
            }
        }
        return $converted;
    }
}

app/code/local/Easylife/News/Helper/Article.php - article helper

<?php 
class Easylife_News_Helper_Article
    extends Mage_Core_Helper_Abstract {
    public function getArticlesUrl(){
        return Mage::getUrl('easylife_news/article/index');
    }
    public function getUseBreadcrumbs(){
        return Mage::getStoreConfigFlag('easylife_news/article/breadcrumbs');
    }
    public function isRssEnabled(){
        return  Mage::getStoreConfigFlag('rss/config/active') && Mage::getStoreConfigFlag('easylife_news/article/rss');
    }
    public function getRssUrl(){
        return Mage::getUrl('easylife_news/article/rss');
    }
    public function getFileBaseDir(){
        return Mage::getBaseDir('media').DS.'article'.DS.'file';
    }
    public function getFileBaseUrl(){
        return Mage::getBaseUrl('media').'article'.'/'.'file';
    }
    public function getAttributeSourceModelByInputType($inputType){
        $inputTypes = $this->getAttributeInputTypes();
        if (!empty($inputTypes[$inputType]['source_model'])) {
            return $inputTypes[$inputType]['source_model'];
        }
        return null;
    }
    public function getAttributeInputTypes($inputType = null){
        $inputTypes = array(
            'multiselect'   => array(
                'backend_model'     => 'eav/entity_attribute_backend_array'
            ),
            'boolean'       => array(
                'source_model'      => 'eav/entity_attribute_source_boolean'
            ),
            'file'          => array(
                'backend_model'     => 'easylife_news/article_attribute_backend_file'
            ),
            'image'         => array(
                'backend_model'     => 'easylife_news/article_attribute_backend_image'
            ),
        );

        if (is_null($inputType)) {
            return $inputTypes;
        } else if (isset($inputTypes[$inputType])) {
            return $inputTypes[$inputType];
        }
        return array();
    }
    public function getAttributeBackendModelByInputType($inputType){
        $inputTypes = $this->getAttributeInputTypes();
        if (!empty($inputTypes[$inputType]['backend_model'])) {
            return $inputTypes[$inputType]['backend_model'];
        }
        return null;
    }
    public function articleAttribute($article, $attributeHtml, $attributeName){
        $attribute = Mage::getSingleton('eav/config')->getAttribute(Easylife_News_Model_Article::ENTITY, $attributeName);
        if ($attribute && $attribute->getId() && !$attribute->getIsWysiwygEnabled()) {
            if ($attribute->getFrontendInput() == 'textarea') {
                $attributeHtml = nl2br($attributeHtml);
            }
        }
        if ($attribute->getIsWysiwygEnabled()) {
            $attributeHtml = $this->_getTemplateProcessor()->filter($attributeHtml);
        }
        return $attributeHtml;
    }
    protected function _getTemplateProcessor(){
        if (null === $this->_templateProcessor) {
            $this->_templateProcessor = Mage::helper('catalog')->getPageTemplateProcessor();
        }
        return $this->_templateProcessor;
    }
}

app/code/local/Easylife/News/Helper/Article/Image/Abstract.php - abstract image helper

<?php
abstract class Easylife_News_Helper_Image_Abstract
    extends Mage_Core_Helper_Data {
    protected $_placeholder     = '';
    protected $_subdir          = '';
    protected $_imageProcessor     = null;
    protected $_image             = null;
    protected $_openError         = "";
    protected $_keepFrame       = false;
    protected $_keepAspectRatio = true;
    protected $_constrainOnly   = true;
    protected $_adaptiveResize  = 'center'; // false|center|top|bottom
    protected $_width           = null;
    protected $_height          = null;
    protected $_scheduledResize = null;
    protected $_resized         = false;
    protected $_adaptiveResizePositions = array(
        'center'=>array(0.5,0.5),
        'top'   =>array(1,0),
        'bottom'=>array(0,1)
    );
    protected $_resizeFolderName = 'cache';
    public function getImageBaseDir(){
        return Mage::getBaseDir('media').DS.$this->_subdir.DS.'image';
    }
    public function getImageBaseUrl(){
        return Mage::getBaseUrl('media').$this->_subdir.'/'.'image';
    }
    public function init(Varien_Object $object, $imageField = 'image'){
        $this->_imageProcessor = null;
        $this->_image = $object->getDataUsingMethod($imageField);
        if(!$this->_image) {
            $this->_image = '/'.$this->_placeholder;
        }
        $this->_widht = null;
        $this->_height = null;
        $this->_scheduledResize = false;
        $this->_resized = false;
        $this->_adaptiveResize = 'center';

        try{
            $this->_getImageProcessor()->open($this->getImageBaseDir().$this->_image);
        }
        catch (Exception $e){
            $this->_openError = $e->getMessage();
            try{
                $this->_getImageProcessor()->open(Mage::getDesign()->getSkinUrl($this->_placeholder));
                $this->_image = '/'.$this->_placeholder;
            }
            catch(Exception $e) {
                $this->_openError .= "\n".$e->getMessage();
                $this->_image = null;
            }
        }
        return $this;
    }
    protected function _getImageProcessor() {
        if (is_null($this->_imageProcessor)) {
            $this->_imageProcessor = Varien_Image_Adapter::factory('GD2');
            $this->_imageProcessor->keepFrame($this->_keepFrame);
            $this->_imageProcessor->keepAspectRatio($this->_keepAspectRatio);
            $this->_imageProcessor->constrainOnly($this->_constrainOnly);
        }
        return $this->_imageProcessor;
    }
    public function keepAspectRatio($value = null){
        if (null !== $value) {
            $this->_getImageProcessor()->keepAspectRatio($value);
            return $this;
        }
        else {
            return $this->_getImageProcessor()->keepAspectRatio();
        }
    }
    public function keepFrame($value = null){
        if (null !== $value) {
            $this->_getImageProcessor()->keepFrame($value);
            return $this;
        }
        else {
            return $this->_getImageProcessor()->keepFrame();
        }
    }
    public function keepTransparency($value = null){
        if (null !== $value) {
            $this->_getImageProcessor()->keepTransparency($value);
            return $this;
        }
        else {
            return $this->_getImageProcessor()->keepTransparency();
        }
    }
    public function adaptiveResize($value = null){
        if (null !== $value) {
            $this->_adaptiveResize = $value;
            if($value) {
                $this->keepFrame(false);
            }
            return $this;
        }
        else {
            return $this->_adaptiveResize;
        }
    }
    public function constrainOnly($value = null){
       if (null !== $value) {
            $this->_getImageProcessor()->constrainOnly($value);
            return $this;
        }
        else {
            return $this->_getImageProcessor()->constrainOnly();
        }
    }
    public function quality($value = null){
        if (null !== $value) {
            $this->_getImageProcessor()->quality($value);
            return $this;
        }
        else {
            return $this->_getImageProcessor()->quality();
        }
    }
    public function backgroundColor($value = null){
        if (null !== $value) {
            $this->_getImageProcessor()-> backgroundColor($value);
            return $this;
        }
        else {
            return $this->_getImageProcessor()-> backgroundColor();
        }
    }
    public function resize($width = null, $height = null) {
        $this->_scheduledResize = true;
        $this->_width  = $width;
        $this->_height = $height;
        return $this;
    }
    protected function _getDestinationImagePrefix() {
        if(!$this->_image) {
            return $this;
        }
        $imageRealPath = "";
        if($this->_scheduledResize) {
            $width  = $this->_width;
            $height = $this->_height;
            $adaptive   = $this->adaptiveResize();
            $keepFrame  = $this->keepFrame();
            $keepAspectRatio= $this->keepAspectRatio();
            $constrainOnly  = $this->constrainOnly();
            $imageRealPath = $width.'x'.$height;
            $options = "";

            if(!$keepAspectRatio) {
                $imageRealPath .= '-exact';
            }
            else {
                if(!$keepFrame && $width && $height && ($adaptive !== false)) {
                    $adaptive = strtolower(trim($adaptive));
                    if(isset($this->_adaptiveResizePositions[$adaptive])) {
                        $imageRealPath .= '-'.$adaptive;
                    }
                }
            }
            if($keepFrame) {
                $imageRealPath .= '-frame';
                $_backgroundColor = $this->backgroundColor();
                if($_backgroundColor) {
                    $imageRealPath .= '-'.implode('-',$_backgroundColor);
                }
            }
            if(!$constrainOnly) {
                $imageRealPath .= '-zoom';
            }
        }
        return $imageRealPath;
    }

    protected function _getDestinationPath() {
        if(!$this->_image) {
            return $this;
        }
        if($this->_scheduledResize) {
            return $this->getImageBaseDir().DS.$this->_resizeFolderName.DS.$this->_getDestinationImagePrefix().DS.$this->_image;
        } else {
            return $this->getImageBaseDir().DS.$this->_image;
        }
    }
    protected function _getImageUrl() {
        if(!$this->_image) {
            return false;
        }
        if($this->_scheduledResize) {
            return  $this->getImageBaseUrl().'/'.$this->_resizeFolderName.'/'.$this->_getDestinationImagePrefix().$this->_image;
        }
        else {
           return  $this->getImageBaseUrl().$this->_image;
        }
    }
    protected function _doResize() {
        if(!$this->_image || !$this->_scheduledResize || $this->_resized) {
            return $this;
        }
        $this->_resized = true; //mark as resized
        $width = $this->_width;
        $height = $this->_height;
        $adaptive = $width && $height &&
                    $this->keepAspectRatio() && !$this->keepFrame() &&
                    ($this->adaptiveResize() !== false);
        $adaptivePosition = false;
        if($adaptive) {
            $adaptive = strtolower(trim($this->adaptiveResize()));
            if(isset($this->_adaptiveResizePositions[$adaptive])) {
                $adaptivePosition = $this->_adaptiveResizePositions[$adaptive];
            }
        }
        $processor = $this->_getImageProcessor();

        if(!$adaptivePosition) {
            $processor->resize($width, $height);
            return $this;
        }
        //make adaptive resize
        //https://github.com/wearefarm/magento-adaptive-resize/blob/master/README.md
        $currentRatio = $processor->getOriginalWidth() / $processor->getOriginalHeight();
        $targetRatio  = $width / $height;
        if ($targetRatio > $currentRatio) {
            $processor->resize($width, null);
        }
        else {
            $processor->resize(null, $height);
        }
        $diffWidth  = $processor->getOriginalWidth() - $width;
        $diffHeight = $processor->getOriginalHeight() - $height;
        if($diffWidth || $diffHeight) {
            $processor->crop(
                floor($diffHeight * $adaptivePosition[0]), //top rate
                floor($diffWidth / 2),
                ceil($diffWidth / 2),
                ceil($diffHeight *  $adaptivePosition[1]) //bottom rate
            );
        }
        return $this;
    }
    public function __toString(){
        try{
            if(!$this->_image) {
                throw new Exception($this->_openError);
            }
            $imageRealPath = $this->_getDestinationPath();
            if (!file_exists($imageRealPath)) {
                $this->_doResize();
                $this->_getImageProcessor()->save($imageRealPath);
            }
            return $this->_getImageUrl();
        }
        catch (Exception $e){
            Mage::logException($e);
            return 'data:image/png;base64,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';
        }
    }
}

app/code/local/Easylife/News/Helper/Article/Image.php - article image helper

<?php 
class Easylife_News_Helper_Article_Image
    extends Easylife_News_Helper_Image_Abstract {
    protected $_placeholder = 'images/placeholder/article.jpg';
    protected $_subdir      = 'article';
}

Done with the helpers. See part 6

share|improve this answer

Part 6

app/design/adminhtml/default/default/layout/easylife_news.xml -

<?xml version="1.0"?>
<layout>
    <adminhtml_news_article_index>
        <reference name="menu">
            <action method="setActive">
                <menupath>cms/easylife_news/article</menupath>
            </action>
        </reference>
        <reference name="content">
            <block type="easylife_news/adminhtml_article" name="article">
                <block type="adminhtml/store_switcher" name="store_switcher" as="store_switcher">
                    <action method="setUseConfirm"><params>0</params></action>
                </block>
            </block>

        </reference>
    </adminhtml_news_article_index>
    <adminhtml_news_article_grid>
        <block type="core/text_list" name="root" output="toHtml">
            <block type="easylife_news/adminhtml_article_grid" name="article_grid"/>
        </block>
    </adminhtml_news_article_grid>
    <!-- Article add/edit action -->
    <adminhtml_news_article_edit>
        <update handle="editor"/>
        <reference name="menu">
            <action method="setActive">
                <menupath>cms/easylife_news/article</menupath>
            </action>
        </reference>
        <reference name="content">
            <block type="easylife_news/adminhtml_article_edit" name="article_edit"></block>
        </reference>
        <reference name="left">
            <block type="adminhtml/store_switcher" name="store_switcher" before="-"></block>
            <block type="easylife_news/adminhtml_article_edit_tabs" name="article_tabs"></block>
        </reference>
        <reference name="head">
            <action method="setCanLoadTinyMce"><load>1</load></action>
        </reference>
        <reference name="js">
            <block type="core/template" name="catalog.wysiwyg.js" template="catalog/wysiwyg/js.phtml"/>
        </reference>
    </adminhtml_news_article_edit>

    <adminhtml_news_article_attribute_index>
        <reference name="content">
            <block type="easylife_news/adminhtml_article_attribute" name="attribute_grid"></block>
        </reference>
    </adminhtml_news_article_attribute_index>
    <adminhtml_news_article_attribute_edit>
        <reference name="left">
            <block type="easylife_news/adminhtml_article_attribute_edit_tabs" name="attribute_edit_tabs"></block>
        </reference>
        <reference name="content">
            <block type="easylife_news/adminhtml_article_attribute_edit" name="attribute_edit_content"></block>
        </reference>
        <reference name="js">
            <block type="adminhtml/template" name="attribute_edit_js" template="easylife_news/attribute/js.phtml">
                <action method="setMainEntityName"><name>article</name></action>
            </block>
        </reference>
    </adminhtml_news_article_attribute_edit>
</layout>

app/design/frontend/base/default/layout/easylife_news.xml - the frontend layout file

<?xml version="1.0"?>
<layout>

    <easylife_news_article_index translate="label" module="easylife_news">
        <label>Articles list</label>
        <update handle="page_two_columns_left" />
        <reference name="content">
            <block type="easylife_news/article_list" name="article_list" template="easylife_news/article/list.phtml" />
        </reference>
    </easylife_news_article_index>
    <easylife_news_article_view translate="label" module="easylife_news">
        <label>Article view page</label>
        <update handle="page_two_columns_left" />
        <reference name="content">
            <block type="easylife_news/article_view" name="article_view" template="easylife_news/article/view.phtml" />
        </reference>
    </easylife_news_article_view>
    <easylife_news_article_rss translate="label" module="easylife_news">
        <label>Articles rss feed</label>
        <block type="easylife_news/article_rss" output="toHtml" name="easylife_news.article.rss" />
    </easylife_news_article_rss>
    <rss_index_index>
        <reference name="content">
            <block type="easylife_news/rss" name="news.rss" template="easylife_news/rss.phtml">
                <action method="addFeed" ifconfig="easylife_news/article/rss" translate="label" module="easylife_news">
                    <label>Articles</label>
                    <url helper="easylife_news/article/getRssUrl" />
                </action>
            </block>
        </reference>
    </rss_index_index>
</layout>

Now the templates

app/design/adminhtml/default/default/template/easylife_news/grid.phtml - grid template

<div class="content-header">
<table cellspacing="0">
    <tr>
        <td style="width:50%;"><h3 class="icon-head <?php echo $this->getHeadClass();?>"><?php echo $this->getHeaderText(); ?></h3></td>
        <td class="a-right">
            <?php echo $this->getButtonsHtml() ?>
        </td>
    </tr>
</table>
</div>
<?php if( !Mage::app()->isSingleStoreMode() ): ?>
    <?php echo $this->getChildHtml('store_switcher');?>
<?php endif;?>
<div>
    <?php echo $this->getGridHtml() ?>
</div>

app/design/adminhtml/default/default/template/easylife_news/form/renderer/fieldset/element.phtml - fieldset element renderer (used for checkboxes for different store views)

<?php $_element = $this->getElement() ?>
<?php $this->checkFieldDisable() ?>

<?php if ($_element->getType()=='hidden'): ?>
<tr>
    <td class="hidden" colspan="100"><?php echo trim($_element->getElementHtml()) ?></td>
</tr>
<?php else: ?>
<tr>
    <td class="label"><?php echo trim($this->getElementLabelHtml()) ?></td>
    <td class="value">
        <?php echo trim($this->getElementHtml()) ?>
        <?php if ($_element->getNote()) : ?>
            <p class="note"><?php echo $_element->getNote() ?></p>
        <?php endif; ?>
    </td>
    <td class="scope-label"><span class="nobr"><?php echo $this->getScopeLabel() ?></span></td>
    <?php if ($this->canDisplayUseDefault()): ?>
    <td class="value use-default">
        <input <?php if($_element->getReadonly()):?> disabled="disabled"<?php endif; ?> type="checkbox" name="use_default[]" id="<?php echo $_element->getHtmlId() ?>_default"<?php if ($this->usedDefault()): ?> checked="checked"<?php endif; ?> onclick="toggleValueElements(this, this.parentNode.parentNode)" value="<?php echo $this->getAttributeCode() ?>"/>
        <label for="<?php echo $_element->getHtmlId() ?>_default" class="normal"><?php echo Mage::helper('easylife_news')->__('Use Default Value') ?></label>
    </td>
    <?php endif; ?>
</tr>
<?php endif; ?>

app/design/adminhtml/default/default/template/easylife_news/attribute/js.phtml - some js required for managing the add/edit attribute form

<script type="text/javascript">
//<![CDATA[
function saveAndContinueEdit(){
    disableElements('save');
    var activeTab = <?php echo $this->getMainEntityName()?>_attribute_tabsJsTabs.activeTab.id;
    if (editForm.submit($('edit_form').action+'back/edit/tab/' + activeTab) == false) {
        enableElements('save');
     }
    varienGlobalEvents.attachEventHandler('formValidateAjaxComplete', function (){
        enableElements('save');
    });
}

function saveAttribute(){
    disableElements('save');
    if (editForm.submit() == false){
        enableElements('save');
    }
    varienGlobalEvents.attachEventHandler('formValidateAjaxComplete', function (){
        enableElements('save');
    });
}

function toggleApplyVisibility(select) {
    if ($(select).value == 1) {
        $(select).next('select').removeClassName('no-display');
        $(select).next('select').removeClassName('ignore-validate');

    } else {
        $(select).next('select').addClassName('no-display');
        $(select).next('select').addClassName('ignore-validate');
        var options = $(select).next('select').options;
        for( var i=0; i < options.length; i++) {
            options[i].selected = false;
        }
    }
}

function checkOptionsPanelVisibility(){
    if($('matage-options-panel')){
        var panel = $('matage-options-panel');
        if($('frontend_input') && ($('frontend_input').value=='select' || $('frontend_input').value=='multiselect')){
            panel.show();
        }
        else {
            panel.hide();
        }
    }
}

function bindAttributeInputType()
{
    checkOptionsPanelVisibility();
    switchDefaultValueField();
    checkIsConfigurableVisibility();
    if($('frontend_input') && ($('frontend_input').value=='select' || $('frontend_input').value=='multiselect' || $('frontend_input').value=='price')){
        if($('is_filterable') && !$('is_filterable').getAttribute('readonly')){
            $('is_filterable').disabled = false;
        }
        if($('is_filterable_in_search') && !$('is_filterable_in_search').getAttribute('readonly')){
            $('is_filterable_in_search').disabled = false;
        }
        if($('backend_type') && $('backend_type').options){
            for(var i=0;i<$('backend_type').options.length;i++){
                if($('backend_type').options[i].value=='int') $('backend_type').selectedIndex = i;
            }
        }
    }
    else {
        if($('is_filterable')){
            $('is_filterable').selectedIndex=0;
            $('is_filterable').disabled = true;
        }
        if($('is_filterable_in_search')){
            $('is_filterable_in_search').disabled = true;
        }
    }

    if ($('frontend_input') && ($('frontend_input').value=='multiselect'
        || $('frontend_input').value=='gallery'
        || $('frontend_input').value=='textarea')) {
        if ($('used_for_sort_by')) {
            $('used_for_sort_by').disabled = true;
        }
    }
    else {
        if ($('used_for_sort_by') && !$('used_for_sort_by').getAttribute('readonly')) {
            $('used_for_sort_by').disabled = false;
        }
    }

    setRowVisibility('is_wysiwyg_enabled', false);
    if ($('frontend_input').value=='textarea') {
        setRowVisibility('is_wysiwyg_enabled', true);
        $('frontend_class').value = '';
        $('frontend_class').disabled = true;
    }
    else if($('frontend_input').value=='text'){
        if (!$('frontend_class').getAttribute('readonly')) {
            $('frontend_class').disabled = false;
        }
    }
    else{
        $('frontend_class').value = '';
        $('frontend_class').disabled = true;
    }

    switchIsFilterable();
}

function switchIsFilterable()
{
    if ($('is_filterable')) {
        if ($('is_filterable').selectedIndex == 0) {
            $('position').disabled = true;
        } else {
            if (!$('position').getAttribute('readonly')){
                $('position').disabled = false;
            }
        }
    }
}

function switchDefaultValueField()
{
    if (!$('frontend_input')) {
        return;
    }

    var currentValue = $('frontend_input').value;

    var defaultValueTextVisibility = false;
    var defaultValueTextareaVisibility = false;
    var defaultValueDateVisibility = false;
    var defaultValueYesnoVisibility = false;
    var scopeVisibility = true;

    switch (currentValue) {
        case 'select':
            optionDefaultInputType = 'radio';
            break;

        case 'multiselect':
            optionDefaultInputType = 'checkbox';
            break;

        case 'date':
            defaultValueDateVisibility = true;
            break;

        case 'boolean':
            defaultValueYesnoVisibility = true;
            break;

        case 'textarea':
            defaultValueTextareaVisibility = true;
            break;

        case 'image':
            defaultValueTextVisibility = false;
            break;
        case 'file':
            defaultValueTextVisibility = false;
            break;
        default:
            defaultValueTextVisibility = true;
            break;
    }


    switch (currentValue) {
        case 'image':
        case 'file':
            $('front_fieldset').previous().hide();
            $('front_fieldset').hide();

            setRowVisibility('is_required', false);
            setRowVisibility('is_unique', false);
            setRowVisibility('frontend_class', false);
        break;

        <?php foreach (Mage::helper('catalog')->getAttributeHiddenFields() as $type=>$fields): ?>
            case '<?php echo $type; ?>':
                <?php foreach ($fields as $one): ?>
                    <?php if ($one == '_front_fieldset'): ?>
                        $('front_fieldset').previous().hide();
                        $('front_fieldset').hide();
                    <?php elseif ($one == '_default_value'): ?>
                        defaultValueTextVisibility =
                        defaultValueTextareaVisibility =
                        defaultValueDateVisibility =
                        defaultValueYesnoVisibility = false;
                    <?php elseif ($one == '_scope'): ?>
                        scopeVisibility = false;
                    <?php else: ?>
                        setRowVisibility('<?php echo $one; ?>', false);
                    <?php endif; ?>
                <?php endforeach; ?>
            break;
        <?php endforeach; ?>

        default:
            $('front_fieldset').previous().show();
            $('front_fieldset').show();
            setRowVisibility('is_required', true);
            setRowVisibility('is_unique', true);
            setRowVisibility('frontend_class', true);
            setRowVisibility('is_configurable', true);
        break;
    }

    setRowVisibility('default_value_text', defaultValueTextVisibility);
    setRowVisibility('default_value_textarea', defaultValueTextareaVisibility);
    setRowVisibility('default_value_date', defaultValueDateVisibility);
    setRowVisibility('default_value_yesno', defaultValueYesnoVisibility);
    setRowVisibility('is_global', scopeVisibility);

    var elems = document.getElementsByName('default[]');
    for (var i = 0; i < elems.length; i++) {
        elems[i].type = optionDefaultInputType;
    }
}

function setRowVisibility(id, isVisible)
{
    if ($(id)) {
        var td = $(id).parentNode;
        var tr = $(td.parentNode);

        if (isVisible) {
            tr.show();
        } else {
            tr.blur();
            tr.hide();
        }
    }
}

function checkIsConfigurableVisibility()
{
    if (!$('is_configurable') || !$('is_global') || !$('frontend_input')) return;
    if ($F('is_global')==1 && $F('frontend_input')=='select') {
        setRowVisibility('is_configurable', true);
    } else {
        setRowVisibility('is_configurable', false);
    }
}

function updateRequriedOptions()
{
    if ($F('frontend_input')=='select' && $F('is_required')==1) {
        $('option-count-check').addClassName('required-options-count');
    } else {
        $('option-count-check').removeClassName('required-options-count');
    }
}

if($('frontend_input')){
    Event.observe($('frontend_input'), 'change', updateRequriedOptions);
    Event.observe($('frontend_input'), 'change', bindAttributeInputType);
    Event.observe($('is_global'), 'change', checkIsConfigurableVisibility);
}

if ($('is_filterable')) {
    Event.observe($('is_filterable'), 'change', switchIsFilterable);
}

if ($('is_required')) {
    Event.observe($('is_required'), 'change', updateRequriedOptions);
}
bindAttributeInputType();
//]]>
</script>

app/design/frontend/base/default/template/easylife_news/article/list.phtml - frontend list template - may require some styling

<?php echo $this->getMessagesBlock()->getGroupedHtml() ?>
<?php $_articles = $this->getArticles(); ?>
<div class="page-title article-title">
    <?php if(Mage::helper('easylife_news/article')->isRssEnabled()) : ?>
        <a href="<?php echo Mage::helper('easylife_news/article')->getRssUrl();?>" class="link-rss"><?php echo Mage::helper('easylife_news')->__('Subscribe to RSS Feed')?></a>
    <?php endif;?>
    <h1><?php echo Mage::helper('easylife_news')->__('Articles') ?></h1>
</div>
<?php if ($_articles->getSize() > 0) :?>
    <?php echo $this->getPagerHtml(); ?>
    <div class="article-list-container">
    <?php foreach ($_articles as $_article) : ?>
        <div class="article-list-item">
            <a href="<?php echo $_article->getArticleUrl()?>">
                <?php echo $_article->getTitle();?>
            </a><br />
        </div>
    <?php endforeach;?>
    </div>
    <?php echo $this->getPagerHtml(); ?>
<?php else : ?>
    <?php echo Mage::helper('easylife_news')->__('There are no articles at this moment');?>
<?php endif;?>

app/design/frontend/base/default/template/easylife_news/article/view.phtml - frontend view template - may require some styling

<?php $_article = $this->getCurrentArticle();?>
<?php echo $this->getMessagesBlock()->getGroupedHtml() ?>
<div class="page-title article-title">
    <h1><?php echo $_article->getTitle(); ?></h1>
</div>
<div class="article-view">
    <div class="article-title">
        <?php echo Mage::helper('easylife_news')->__('Title');?>:<?php echo $_article->getTitle();?>

    </div>
    <div class="article-short_description">
        <?php echo Mage::helper('easylife_news')->__('Short description');?>:<?php echo $_article->getShortDescription();?>

    </div>
    <div class="article-description">
        <?php echo Mage::helper('easylife_news')->__('Description');?>:<?php echo $_article->getDescription();?>

    </div>
    <div class="article-publish_date">
        <?php echo Mage::helper('easylife_news')->__("Publish Date");?>: <?php echo Mage::helper('core')->formatDate($_article->getPublishDate(), 'full');?>

    </div>

</div>

app/design/frontend/base/default/template/easylife_news/rss.php - rss template

<?php $_feeds = $this->getFeeds();?>
<?php if ($_feeds): ?>
<table class="data-table rss-table" id="rss-table-news" style="margin-top:20px">
    <col />
    <col width="1" />
    <thead>
        <tr>
            <th colspan="2"><?php echo Mage::helper('easylife_news')->__('News Feeds') ?></th>
        </tr>
    </thead>
    <tbody>
        <?php foreach ($_feeds as $_feed): ?>
        <tr>
            <td><?php echo $_feed->getLabel() ?></td>
            <td><a href="<?php echo $_feed->getUrl() ?>" class="link-rss"><?php echo Mage::helper('easylife_news')->__('Get Feed'); ?></a></td>
        </tr>
        <?php endforeach; ?>
    </tbody>
</table>
<?php endif; ?>

Now you need to add a placeholder image in case you plan to use image attributes.
The image should be placed in skin/frontend/base/default/images/placeholder/article.jpg. Just copy the default magento logo and place it there.

That's it. Simple, right?

share|improve this answer
1  
Thankyou Marius. –  Amit Kamboj Jun 6 at 13:35

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