Magento 1.7.0.2 override adminhtml: Invalid block type

Question

I want to override the standard phtml when you edit a product in magento admin.

File to override: C:\wamp64\www\regimeproteine\app\design\adminhtml\default\default\template\catalog\form\renderer\fieldset\element.phtml

I have created a module:

File: C:\wamp64\www\regimeproteine\app\etc\modules\Pro10_Adminshopscope.xml

<?xml version="1.0"?>
<config>
    <modules>
        <Pro10_Adminshopscope>
            <active>true</active>
            <codePool>local</codePool>
        </Pro10_Adminshopscope>
    </modules>
</config>

File: C:\wamp64\www\regimeproteine\app\code\local\Pro10\Adminshopscope\etc\config.xml

<?xml version="1.0"?>
<config>
    <modules>
        <Pro10_Adminshopscope>
            <version>1.0</version>
        </Pro10_Adminshopscope>
    </modules>
    <global>
        <blocks>
            <adminhtml>
                <rewrite>
                    <catalog_form_renderer_fieldset_element>Pro10_Adminshopscope_Block_Adminhtml_Catalog_Form_Renderer_Fieldset_Element</catalog_form_renderer_fieldset_element>
                </rewrite>
            </adminhtml>
        </blocks>
    </global>
</config>

> The file that will override the original:

C:\wamp64\www\regimeproteine\app\code\local\Pro10\Adminshopscope\Block\Adminhtml\Catalog\Form\Renderer\Fieldset\Element.phtml

This result in a blanco page, if I remove or rename the target, the default element.phtml is used.

I changed these files for mor info about the error

C:\wamp64\www\regimeproteine\app\code\core\Mage\Core\Model\Layout.php C:\wamp64\www\regimeproteine\app\code\core\Mage\Core\Model\Config.php

the log files:

exception 'Mage_Core_Exception' with message 'invalid block type: Pro10_Adminshopscope_element' in C:\wamp64\www\regimeproteine\app\Mage.php:597

Answer 1

Method 1 If you want to change phtml file, you can define your own admin theme in app\code\local\Pro10\Adminshopscope\etc\config.xml

<config>
    <stores>
        <admin>
            <design>
                <package>
                    <name>default</name>
                </package>
                <theme>
                    <default>your_theme</default>
                </theme>
            </design>
        </admin>
    </stores>
    <modules>
        <Pro10_Adminshopscope>
            <version>1.0</version>
        </Pro10_Adminshopscope>
    </modules>
    <!-- and so on -->
</config>

Then copy original app\design\adminhtml\default\default\template\catalog\form\renderer\fieldset\element.phtml to app\design\adminhtml\default\your_theme\template\catalog\form\renderer\fieldset\element.phtml

Method 2 If you need to change something in the block Mage_Adminhtml_Block_Catalog_Form_Renderer_Fieldset_Element, then your config will look something like this:

<config>
    <modules>
        <Pro10_Adminshopscope>
            <version>1.0</version>
        </Pro10_Adminshopscope>
    </modules>
    <global>
        <blocks>
            <adminshopscope>
                <class>Pro10_Adminshopscope_Block</class>
            </adminshopscope>
            <adminhtml>
                <rewrite>
                    <catalog_form_renderer_fieldset_element>Pro10_Adminshopscope_Block_Adminhtml_Catalog_Form_Renderer_Fieldset_Element</catalog_form_renderer_fieldset_element>
                </rewrite>
            </adminhtml>
        </blocks>
    </global>   
</config>

In your block app\code\local\Pro10\Adminshopscope\Block\Adminhtml\Catalog\Form\Renderer\Fieldset\Element.php, you should set the template like so:

class Pro10_Adminshopscope_Block_Adminhtml_Catalog_Form_Renderer_Fieldset_Element extends Mage_Adminhtml_Block_Catalog_Form_Renderer_Fieldset_Element
{
    protected function _construct()
    {
        return $this->setTemplate('adminshopscope/catalog/form/renderer/fieldset/element.phtml');
    }
}

Lastly, you need to create the file app\design\adminhtml\default\default\template\adminshopscope\catalog\form\renderer\fieldset\element.phtml

Answer 2

Small adustment:

Element.php: app\code\local\Pro10\Adminshopscope\Block\Adminhtml\Catalog\Form\Renderer\Fieldset\Element.php, "class" forgotten before Pro10_Admin....:

class Pro10_Adminshopscope_Block_Adminhtml_Catalog_Form_Renderer_Fieldset_Element extends Mage_Adminhtml_Block_Catalog_Form_Renderer_Fieldset_Element
{
    protected function _construct()
    {
        return $this->setTemplate('adminshopscope/catalog/form/renderer/fieldset/element.phtml');
    }
}

Answer 3

other question: how can I use a custom style.css file in this case?

edit file app\code\local\Pro10\Adminshopscope\etc\config.xml?