Gopal's Blog: Magento Knockout JS

As we can see Magento2 is much more depends on KO(Knockout JS).

Magento 2 don't allow to update price from admin for the configurable product.

Once configurable product is created from admin, price field is disabled.

To enable price field, I have created module and changed small code.

I don't know this is the proper method or not, but that is working for me.

1. Create a PHP file: app/code/Gopal/ConfigurablePrice/registration.php

 <?php  
 \Magento\Framework\Component\ComponentRegistrar::register(  
   \Magento\Framework\Component\ComponentRegistrar::MODULE,  
   'Gopal_ConfigurablePrice',  
   __DIR__  
 );

2. Create a XML file: app/code/Gopal/ConfigurablePrice/etc/module.xml

<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../../../../../lib/internal/Magento/Framework/Module/etc/module.xsd">
    <module name="Gopal_ConfigurablePrice" setup_version="1.0.0">
        <sequence>
            <module name="Magento_Catalog" />
            <module name="Magento_ConfigurableProduct" />
        </sequence>
    </module>
</config>

3. Create a XML file: app/code/Gopal/ConfigurablePrice/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\ConfigurableProduct\Ui\DataProvider\Product\Form\Modifier\ConfigurablePrice">
        <plugin name="enable_price_configurable_product" type="Gopal\ConfigurablePrice\Plugin\DataProvider\Product\Form\Modifier\ConfigurablePrice" sortOrder="20" disabled="false"/>
    </type>
</config>

4. Create a file: app/code/Gopal/ConfigurablePrice/Plugin/DataProvider/Product/Form/Modifier/ConfigurablePrice.php

<?php
/**
 * Copyright © 2016 Magento. All rights reserved.
 * See COPYING.txt for license details.
 */
namespace Gopal\ConfigurablePrice\Plugin\DataProvider\Product\Form\Modifier;

use Magento\Catalog\Ui\DataProvider\Product\Form\Modifier\AbstractModifier;
use Magento\Catalog\Api\Data\ProductAttributeInterface;
use Magento\Catalog\Model\Locator\LocatorInterface;
use Magento\ConfigurableProduct\Model\Product\Type\Configurable as ConfigurableType;
use Magento\ConfigurableProduct\Ui\DataProvider\Product\Form\Modifier\ConfigurablePrice as ConfigurablePriceCore;
/**
 * Data provider for price in the Configurable products
 */
class ConfigurablePrice extends ConfigurablePriceCore
{
    /**
     * {@inheritdoc}
     *
     * Added after listener for make price field editable in configurable produc edit page.
     */
    public function afterModifyMeta($subject, $result)
    {
        $groupCode = $this->getGroupCodeByField($result, ProductAttributeInterface::CODE_PRICE)
            ?: $this->getGroupCodeByField($result, ConfigurablePriceCore::CODE_GROUP_PRICE);

        if (!empty($result[$groupCode]['children'][ConfigurablePriceCore::CODE_GROUP_PRICE])) {
            $result[$groupCode]['children'][ConfigurablePriceCore::CODE_GROUP_PRICE]['children']['price']['arguments']['data']['config']['imports']['disabled'] = 0;
        }

        return $result;
    }
}

Now, please run below commands
php bin/magento module:enable Gopal_ConfigurablePrice
php bin/magento setup:upgrade
php bin/magento setup:static-content:deploy -f

Now price field is must be enabled: Check screenshot of the configuable product page in admin.