I have custom column(testname) in admin grid for custom module Where current table of module is Table A and testname is store in Table C But Table B joins both tables.I have displayed value in the grid with join as Below :

<column name="testname" class="Vendor\Namespace\Ui\Component\Listing\Column\TestName">
    <argument name="data" xsi:type="array">                
        <item name="config" xsi:type="array">
            <item name="filter" xsi:type="string">select</item>
            <item name="dataType" xsi:type="string">text</item>
            <item name="sortable" xsi:type="boolean">false</item>
            <item name="label" xsi:type="string" translate="true">TestName</item>

public function prepareDataSource(array $dataSource) 
    foreach ($dataSource['data']['items'] as & $item) 
        $resultPage = $this->_modelItemsFactory->create();
        $collection = $resultPage->getCollection(); 
        $Collection1 = $collection->addTableC()->addTableB($item['tablea_id']);

        foreach($Collection1 as $TestName)
            $item['testname']= implode(', ', $groupsarr); 

    return $dataSource;

It works perfect and showing the column name but how can i add those values in filter and how to filter result with this column?

1 Answer 1


I have found solution as below : To add custom filtration, I have created method _renderFiltersBefore and written join sql query in /Model/Resource/Items/collection as below :

protected function _renderFiltersBefore()
        return parent::_renderFiltersBefore();

but there was some issue with alias in sql so I have added : $this->addFilterToMap('entity_id', 'main_table.entity_id'); Now it works perfectly.

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