Wrong template location after overwrite

Question

I have overwritten the _beforeToHtml() method in the class Magento\CatalogWidget\Block\Product\ProductsList. After doing this, I received the following error:

Invalid template file: 'product/widget/content/grid.phtml' in module: 'My_Module'

When I move the product/widget/content/grid.phtml template from my theme to my module, the error message dissapears. When I add the Magento_CatalogWidget:: prefix to the template in widgets.xml, the error doesn't go away.

Answer 1

If you want to rewrite that template in your module, you have to do it via xml

<?xml version="1.0"?>
<page xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance dc" xsi:noNamespaceSchemaLocation="urn:magento:framework:View/Layout/etc/page_configuration.xsd">
    <referenceBlock name="{block.name}">
        <action method="setTemplate">
            <argument name="template" xsi:type="string">Magento_CatalogWidget::product/widget/content/grid.phtml</argument>
        </action>
    </referenceBlock>
</page>