Magento 2 Override – How to Override Core Interface and Model

interfacemagento2overrides

I am trying to override core interface of Customer Group.

I add my custom get and set methods to core Api interface.

Vendor\magento\customer-module\Api\Data\GroupInterface.php

Where its working fine.

But when i am trying to override it its doesn't seems to be work.

Here i am sharing my module code.

ZeroCool\AdvacedReviews\Api\Data\GroupInterface.php

<?php

namespace ZeroCool\AdvancedReviews\Api\Data\GroupInterface;


interface GroupInterface extends ExtensibleDataInterface
{   
const SHIPPING_METHOD = 'shipping_method';

/**
 * Get shipping method
 *
 * @return string
 */
public function getShippingMethod();

/**
 * Set shipping method
 *
 * @param int $shippingMethod
 * @return $this
 */
public function setShippingMethod($shippingMethod);

}

ZeroCool\AdvancedReviews\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\Data\Group" type="ZeroCool\AdvancedReviews\Model\Data\Group" /> 
<preference for="Magento\Customer\Api\Data\GroupInterface" type="ZeroCool\AdvancedReviews\Api\Data\GroupInterface" />

There's also one question available but it doesn't have any answers till now.

Stack Exchange

Thanks in advance.

Best Answer

Below solution worked for me.

As per MIKE suggested we can't directly override magento's core interfaces.

So than there's comes role of Extension Attributes.

etc/extension_attributes.xml

<?xml version="1.0"?>

<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Api/etc/extension_attributes.xsd">
 <extension_attributes for="Magento\Checkout\Api\Data\ShippingInformationInterface">
    <attribute code="custom_shipping_charge" type="string"/>
</extension_attributes>

<extension_attributes for="Magento\Customer\Api\Data\GroupInterface">
    <attribute code="custom_shipping_amount" type="string"/>
</extension_attributes>

</config>

Execute : php bin/magento setup:di:compile

After that your get and set method will generated under below path.

magento_root/generated/code/Magento/Customer/Api/Data/GroupExtensionInterface.php

Now you can use those methods.

$groups->getCustomShippingAmount();
$groups->setCustomShippingAmount();

Hope this will help you.

Related Solutions

Magento 2 – How to Create Customer Group Programmatically

May as well answer this since I figured it out.

The problem with my example above is that I was trying to use the GroupRepository to push the new model to the database.

Instead, I should have just used $group->save() on the model returned by the GroupFactory:

<?php
namespace MyCompany\MyModule\Setup;

use Magento\Framework\Module\Setup\Migration;
use Magento\Framework\Setup\InstallDataInterface;
use Magento\Framework\Setup\ModuleContextInterface;
use Magento\Framework\Setup\ModuleDataSetupInterface;
use Magento\Customer\Model\GroupFactory;

class InstallData implements InstallDataInterface
{
    protected $groupFactory;

    /**
     * I'd like a customer group factory please Sir!
     */
    public function __construct(GroupFactory $groupFactory) {
        $this->groupFactory = $groupFactory;
    }

    public function install(
        ModuleDataSetupInterface $setup,
        ModuleContextInterface $context
    ) {
        $setup->startSetup();

        // Create the new group
        /** @var \Magento\Customer\Model\Group $group */
        $group = $this->groupFactory->create();
        $group
            ->setCode('My New Group')
            ->setTaxClassId(3) // magic numbers OK, core installers do it?!
            ->save();

        $setup->endSetup();
    }
}

Magento2 Module – Fix ‘main.CRITICAL: Plugin Class Doesn’t Exist’

I couldn't reproduce your error, but I got an other one.

Then I did some minor adjustments to your code and it worked.
First drop the InstallSchema.php file. It does nothing so it is useless.

Then make sure that your plugin file is in Amaj/CorePlugin/Model/Currency/Plugin.php and it looks like this:

<?php

namespace Amaj\CorePlugin\Model\Currency;

class Plugin
{
    protected $logger;

    public function __construct(\Psr\Log\LoggerInterface $logger) {
        $this->logger = $logger;
    }

    /**
     * @param $subject
     * @param \Closure $proceed
     * @param $price
     * @param array $options
     * @return string
     */
    public function aroundFormatTxt(
        $subject,
        \Closure $proceed,
        $price,
        $options = []
    )
    {
        $this->logger->info('Amaj aroundFormatTxt');
        return '2';
    }

}

you don't need parent::__construct(); in the constructor because there is no parent class.
And I replaced $logger->info with $this->logger->info because there is no $logger variable.

Best Answer

Related Solutions

Magento 2 – How to Create Customer Group Programmatically

Magento2 Module – Fix ‘main.CRITICAL: Plugin Class Doesn’t Exist’

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