Renderer class will useful to return the customized value for admin grid.
Ex: In my admin form grid , I want to show some customized result instead of actual database column value.In that case we can use renderer class for our customized result. Below script will return/display the result of image, instead of image path (in my DB table column (Sample Column name is image_path) maintain Image path as value)
Script: 1 Admin Grid, below is my admin grid file path.
File path: Jute\Ecommerce\Block\Adminhtml\Image.php
protected function _prepareColumns() {
$this->addColumn(
'image',
[
'header' => __('Image'),
'index' => 'image_path',
'filter' => false,
'class' => 'xxx',
'width' => '50px',
'renderer' => '<MYMODULEPATH>\Block\Adminhtml\Helper\Renderer\<FILENAME>',
] );
}
Script: 2
Customized Your renderer file according to your requirement.
Here am returning the image instead of image path.
Below is my renderer file path,
File path: Jute\Ecommerce\Block\Adminhtml\Helper\Renderer\Image.php
<?php
namespace Jute\Ecommerce\Block\Adminhtml\Helper\Renderer;
class Image extends \Magento\Backend\Block\Widget\Grid\Column\Renderer\AbstractRenderer
{
protected $_storeManager;
public function __construct(
\Magento\Backend\Block\Context $context,
\Magento\Store\Model\StoreManagerInterface $storeManager,
array $data = []
) {
parent::__construct($context, $data);
$this->_storeManager = $storeManager;
}
public function render(\Magento\Framework\DataObject $row) {
$row->getId() ///wil get primarykey value.
$storeViewId = $this->getRequest()->getParam('store');
/** @var \Jute\Ecommerce\Model\ResourceModel\Collection $collection */
$imageObj = $this->_myCollectionFactory->create()->setStoreViewId($storeViewId)->load($row->getId());
$srcImage = $this->_storeManager->getStore()->getBaseUrl(
\Magento\Framework\UrlInterface::URL_TYPE_MEDIA
) . $imageObj->getImagePath();
return '<image width="150" height="50" src ="'.$srcImage.'" alt="'.$imageObj->getImage().'" >';
}
}