Save Grid Checkbox Values

Question

I'm working with a custom item model that I would like to display on a grid with checkboxes on each row. The grid does not need 'edit' functionality, simply the checkbox save functionality. The grid currently displays correctly, and hits my saveAction when I click save, but the checkbox data doesn't seem to be included in the post data. I expect an array of item IDs that are checked after save to be posted, so that I can map this data to a different model where it is needed.

Here is the relevant code:

app/code/local/Company/MyModule/Block/Adminhtml/Homepage/Grid/Container.php:

<?php
class Company_MyModule_Block_Adminhtml_Homepage_Grid_Container extends Mage_Adminhtml_Block_Widget_Grid_Container
{
    public function __construct()
    {
        parent::__construct();
        $this->_objectId = 'id';
        $this->_blockGroup = 'mymodule';
        $this->_controller = 'adminhtml_homepage';

        $this->_updateButton('save', 'label', Mage::helper('mymodule')->__('Save'));
        $this->_updateButton('delete', 'label', Mage::helper('mymodule')->__('Delete'));
        $this->_removeButton('add');

        $this->_addButton('saveandcontinue', array(
            'label'     => Mage::helper('adminhtml')->__('Save And Continue Edit'),
            'onclick'   => "setLocation('{$this->getUrl('*/*/save')}')",
            'class'     => 'save',
        ), -100);
    }

    public function getHeaderText()
    {
        return Mage::helper('mymodule')->__('Title Goes Here');
    }

}

app/code/local/Company/MyModule/Block/Adminhtml/Homepage/Grid.php:

<?php
class Company_MyModule_Block_Adminhtml_Homepage_Grid extends Mage_Adminhtml_Block_Widget_Grid
{

    public function __construct()
    {
        parent::__construct();
        $this->setId('company_mymodule_homepage_grid');
        $this->setDefaultSort('ID'); // Primary ID
        $this->setDefaultDir('DESC'); // Sorting order
        $this->setSaveParametersInSession(true);
        $this->setUseAjax(true);
    }

    protected function _prepareMassaction()
    {
        return $this;
    }

    protected function _prepareCollection()
    {
        $collection = Mage::getModel('mymodule_db/item')
            ->getCollection();

        $this->setCollection($collection);
        parent::_prepareCollection();
        return $this;
    }

    protected function _prepareColumns()
    {


        $helper = Mage::helper('mymodule');
        $currency = (string) Mage::getStoreConfig(Mage_Directory_Model_Currency::XML_PATH_CURRENCY_BASE);

        $this->addColumn('itemCheckbox', array(
            'index'      => 'ID',
            'type'       => 'checkbox',
            'width'      => 20,
            'sortable'   => false,
            'field_name' => 'map[]'
        ));

        $this->addColumn('item_id', array(
            'header' => $helper->__('ID'),
            'index'  => 'item_id'
        ));

        $this->addColumn('item_name', array(
            'header' => $helper->__('Name'),
            'index'  => 'item_name'
        ));

        $this->addExportType('*/*/exportRelatedCsv', $helper->__('CSV'));
        $this->addExportType('*/*/exportRelatedXml', $helper->__('XML'));

        return parent::_prepareColumns();
    }



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


    /**
     * Determines whether to display the tab
     * In our case, we show it on the product edit and new product pages
     *
     * @return bool
     */
    public function canShowTab()
    {

        // Pull in our product
        $product = Mage::registry('current_product');

        // The request
        $request = Mage::app()->getRequest();

        // Show if we have a product already (edit product page)
        if ($product->getId()) {
            return true;
        }

        // Do not show if we don't have any attribute set
        if (!$product->getAttributeSetId()) {
            return false;
        }

        // If we do have an attribute set, it's okay to show (add new product page)
        if ($request->getParam('set')) {
            return true;
        }

        return false;

    }


}

app/code/local/Company/MyModule/controllers/Adminhtml/HomepageController.php:

<?php
class Company_MyModule_Adminhtml_HomepageController extends Mage_Adminhtml_Controller_Action
{
    /**
     * Get custom products grid and serializer block
     */
    public function indexAction()
    {
//        $this->loadLayout()
//            ->_addContent(
//                $this->getLayout()
//                    ->createBlock('pixwordpress/adminhtml_homepage_grid_container'))
//            ->renderLayout();

        $this->loadLayout();
        $this->renderLayout();
    }

    public function saveAction()
    {

        if ($this->getRequest()->getPost())
        {
            echo 'got post data!';
        } else {
            echo 'sadly, no post data';
        }

        //$this->_redirect('*/*/');
    }

}

app/design/adminhtml/default/newinstall/layout/company/customlayout.xml:

<adminhtml_homepage_index>
    <reference name="content">
        <block type="mymodule/adminhtml_homepage_grid_container" name="adminhtml.homepage.container" />
    </reference>
    <!--<reference name="content">-->
        <!--<block type="mymodule/adminhtml_homepage_grid" name="ajaxgrid.index" />-->
    <!--</reference>-->
</adminhtml_homepage_index>

<adminhtml_mymodule_homepage_grid_container>
    <block type="core/text_list" name="root" output="toHtml">
        <block type="mymodule/adminhtml_homepage_grid" name="mymodule.homepage.grid"/>
        <block type="adminhtml/widget_grid_serializer" name="homepage_grid_serializer">
            <reference name="homepage_grid_serializer">
                <action method="initSerializerBlock">
                    <grid_block_name>mymodule.homepage.grid</grid_block_name>
                    <data_callback>getInitialHomepageGrid</data_callback>
                    <hidden_input_name>map[]</hidden_input_name>
                    <reload_param_name>item</reload_param_name>
                </action>
            </reference>
        </block>
    </block>
</adminhtml_mymodule_homepage_grid_container>

<!--<adminhtml_mymodule_homepage_grid>-->
    <!--<block type="core/text_list" name="root" output="toHtml">-->
        <!--<block type="mymodule/adminhtml_homepage_grid" name="mymodule.homepage.grid"/>-->
    <!--</block>-->
<!--</adminhtml_mymodule_homepage_grid>-->

Any help greatly appreciated!

Answer 1

You most likely need to generate the secret key when creating the URL to POST to:

Mage::helper("adminhtml")->getUrl("acompany_mymodule/index/index");
$key = Mage::getSingleton('adminhtml/url')
             ->getSecretKey("acompany_mymodule/index/","index");

Reference:

• How to generate an adminhtml page secret key

Answer 2

In this case, one tricky solution i am suggesting it is not fully solved your problem but 90% it will solve. you need to use massaction here and in your controller mass action you can get the selected Ids and use save logic in given mass action you can also call model in massaction and use it like save action. it will solve your problem except button will be in grid not in grid container. I hope this will helpful for you.