Mfrhtyj

I already have a problem.
In the backoffice, in Catalog/category i have created a new tab for Push_Ahead products.

But now, I want some features and it's not work...
I want when a product is not selected, and we make a save that the product is un push ahead.

I have a list with ALL/yes,No and i wanted to display all the product, product push ahead ( yes) and all the product not push ahead(no)
But it's not work.

Here is my code : `

/*
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*/

class Mycompany_Tetegondole_Block_Adminhtml_Catalog_Category_Tab_Pushahead extends Mage_Adminhtml_Block_Catalog_Category_Tab_Product {

protected function _prepareCollection()

{

    $collection = Mage::getModel('catalog/category')->load((int) $this->getRequest()->getParam('id', 0))->getProductCollection()

        ->addAttributeToSelect('name')

        ->addAttributeToSelect('sku')

        ->addAttributeToSelect('price');



    $this->setCollection($collection);

    $this->getCollection()->addAttributeToFilter('push_ahead', true);



    return Mage_Adminhtml_Block_Widget_Grid::_prepareCollection();

}



protected function _prepareColumns()

{

    if (!$this->getCategory()->getProductsReadonly()) {

        $this->addColumn('is_push', array(

            'header_css_class' => 'a-center',

            'type'      => 'checkbox',

            'name'      => 'is_push',

            'values'    => $this->_getSelectedProducts(),

            'align'     => 'center',

            'index'     => 'entity_id'

        ));

    }

    $this->addColumn('entity_id', array(

        'header'    => Mage::helper('catalog')->__('ID'),

        'sortable'  => true,

        'width'     => '60',

        'index'     => 'entity_id'

    ));

    $this->addColumn('name', array(

        'header'    => Mage::helper('catalog')->__('Name'),

        'index'     => 'name'

    ));

    $this->addColumn('sku', array(

        'header'    => Mage::helper('catalog')->__('SKU'),

        'width'     => '80',

        'index'     => 'sku'

    ));

    $this->addColumn('price', array(

        'header'    => Mage::helper('catalog')->__('Price'),

        'type'  => 'currency',

        'width'     => '1',

        'currency_code' => (string) Mage::getStoreConfig(Mage_Directory_Model_Currency::XML_PATH_CURRENCY_BASE),

        'index'     => 'price'

    ));



    return Mage_Adminhtml_Block_Widget_Grid::_prepareColumns();

}



protected function _addColumnFilterToCollection($column)

{

    // Set custom filter for in category flag

    if ($column->getId() == 'is_push') {

        $productIds = $this->_getSelectedProducts();

        if (empty($productIds)) {

            $productIds = 0;

        }

        if ($column->getFilter()->getValue()) {

            $this->getCollection()->addFieldToFilter('push_ahead', array('in'=>$productIds));

        }

        elseif(!empty($productIds)) {

            $this->getCollection()->addFieldToFilter('push_ahead', array('nin'=>$productIds));

        }

    }

    else {

        return Mage_Adminhtml_Block_Widget_Grid::_addColumnFilterToCollection($column);

    }

    return $this;

}



 protected function _getSelectedProducts()

{

    $products = $this->getRequest()->getPost('push_ahead');

    if (is_null($products)) {

        $products = $this->getCategory()->getProductsPosition();

        return array_keys($products);

    }

    return $products;

}

}
`