Resolved - Add Product Thumbnails to Custom Grid

Question

I have created a custom module with grid. Now trying to add the product thumbnails to this grid, but the $val in renderer file is empty and images don't show up (see image below).

[![custom module grid images don't show up][1]][1]

Here is the renderer file at ....\Block\Adminhtml\Template\Grid\Renderer\Image.php

class Cpstest_ProductComment_Block_Adminhtml_Template_Grid_Renderer_Image extends Mage_Adminhtml_Block_Widget_Grid_Column_Renderer_Abstract
{
    public function render(Varien_Object $row)
    {
        return $this->_getValue($row);
    }

    protected function _getValue(Varien_Object $row)
    {
        $val = $row->getData($this->getColumn()->getIndex());
        $val = str_replace("no_selection", "", $val);
        $url = Mage::getBaseUrl('media') . 'catalog/product/' . $val;
        $out = "<img src=". $url ." width='60px'/>";
        return $out;
    }
}

And the column code in Grid.php

$this->addColumn('image', array(
    'header'   => Mage::helper('catalog')->__('Image'),
    'align'    => 'left',
    'index'    => 'image',
    'width'    => '70',
    'renderer' => 'Cpstest_ProductComment_Block_Adminhtml_Template_Grid_Renderer_Image'
));

Thanks for any suggestions.

Answer 1

The image attribute isn't part of your custom collection. The easiest way to display the thumbnails is changing your render function to something like below, which loads a product based on productcomment_increment_id and get its thumnail.

public function render(Varien_Object $row)
{
    $product = Mage::getModel('catalog/product')->load($row->getProductcommentIncrementId());
    $url = Mage::getBaseUrl('media') . 'catalog/product/' . $product->getThumbnail();
    $out = "<img src=". $url ." width='60px'/>"; 
    return $out;
}