Magento – How to override adminhtml block file in Magento 2

magento-2.2.1override-blockoverrides

How to override module-customer/block/AdminHtml/Group/Edit/Form.php

I have created custom module for that please find my code for that.

etc/di.xml

<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:ObjectManager/etc/config.xsd">
<type name="Magento\Customer\Block\Adminhtml\Group\Edit\Form">
    <plugin name="add_form_field" type="ZeroCool\AdvancedReviews\Model\Plugin\Form" sortOrder="1"/>
</type>
<type name="Magento\Customer\Controller\Adminhtml\Group\Save">
    <plugin name="save_field" type="ZeroCool\AdvancedReviews\Model\Plugin\Form" sortOrder="1"/>
</type>
<preference for="Magento\Customer\Model\Group\Edit" type="ZeroCool\AdvancedReviews\Block\Adminhtml\Group\Edit" />  
</config>

Vendor/Package/Block/Adminhtml/Group/Edit.Form.php

<?php 
namespace ZeroCool\AdvancedReviews\Block\Adminhtml\Group\Edit;

use Magento\Customer\Controller\RegistryConstants;

 class Form extends Magento\Customer\Block\Adminhtml\Group\Edit
 {

public function _prepareLayout()
{
    echo "Layout Worked Successfully..."; die();
}

}

There are below exceptions but can't find solutions for them.

2 exception(s):
Exception #0 (Magento\Framework\Exception\LocalizedException): Invalid block type: Magento\Customer\Block\Adminhtml\Group
Exception #1 (ReflectionException): Class ZeroCool\AdvancedReviews\Block\Adminhtml\Group does not exist

Please guide me.

Thanks in Advance.

Best Answer

You have error in your block file

Vendor/Package/Block/Adminhtml/Group/Edit.Form.php

<?php 
namespace ZeroCool\AdvancedReviews\Block\Adminhtml\Group\Edit;

use Magento\Customer\Controller\RegistryConstants;
//Add "/" in start of extends
 class Form extends \Magento\Customer\Block\Adminhtml\Group\Edit
 {

public function _prepareLayout()
{
    echo "Layout Worked Successfully..."; die();
}

}

Related Solutions

Magento Adminhtml – Fix Can’t Override Magento Adminhtml Block

During my sleep I must have subconsciously thought of the solution; it would appear that I was overriding the wrong block for this scenario.

Also it appears to me that Mage_Adminhtml_Block_Catalog_Product_Edit_Tabs_Grouped is either deprecated or just not used any more.

Nevertheless I added a die; statement inside the cores' protected function _prepareLayout() method - lo and behold nothing stopped processing. So I consult my best friend grep and found the following:

$ grep -r -e 'Associated Products' "app/code/core/Mage/"

A core block Mage_Adminhtml_Block_Catalog_Product_Edit_Tab_Super_Group which I then decided to override - this worked (source attached for anyone else that has this problem).

Vendor/Catalog/etc/config.xml:

<config>

    ...

    <global>
        <blocks>
            <vendor_catalog>
                <class>Vendor_Catalog_Block</class>
            </vendor_catalog>
            <adminhtml>
                <rewrite>
                    <catalog_product_edit_tab_super_group>Vendor_Catalog_Block_Adminhtml_Catalog_Product_Edit_Tab_Super_Group</catalog_product_edit_tab_super_group>
                </rewrite>
            </adminhtml>
        </blocks>
    </global>

    ...

</config>

Vendor/Catalog/Block/Adminhtml/Catalog/Product/Edit/Tab/Super/Group.php:

<?php

class Vendor_Catalog_Block_Adminhtml_Catalog_Product_Edit_Tab_Super_Group
    extends Mage_Adminhtml_Block_Catalog_Product_Edit_Tab_Super_Group
{
    public function getTabUrl()
    {
        // Override the tab Url with my controller/action.
        return $this->getUrl('*/vendor_catalog_product/superGroup', array('_current' => true));
    }
}

Magento – Magento 2 : How to Override Block File

To overide block file you need to do this things.

1 – First of all create di.xml file in Folder Company/Extension/etc/di.xml

<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:ObjectManager/etc/config.xsd">
    <preference for="Magento\Sales\Block\Adminhtml\Order\Create\Search\Grid" type="Company\Extension\Block\Adminhtml\Order\Create\Search\Grid" />
</config>

2 – Now create Grid.php Block file in Folder Company\Extension\Block\Adminhtml\Order\Create\Search

<?php
    namespace Company\Extension\Block\Adminhtml\Order\Create\Search;

    class Grid extends \Magento\Sales\Block\Adminhtml\Order\Create\Search\Grid
    {
        // WRITE YOUR FUNCTION TO OVERIDE
    }
?>

Best Answer

Related Solutions

Magento Adminhtml – Fix Can’t Override Magento Adminhtml Block

Magento – Magento 2 : How to Override Block File

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