According to the Plugins (Interceptors) guide for Magento 2 developers, plugins are class methods that modify the behavior of public class methods by intercepting them and running code before, after, or around them. However, some classes in Magento 2 implement the NoninterceptableInterface interface, which prevents plugins from being generated for them. The Magento\Framework\App\cache\Proxy class is one of them, as it extends from Magento\Framework\ObjectManager\NoninterceptableInterface. Therefore, the plugin is not executing as expected because the target class implements NoninterceptableInterface. Verified References: https://devdocs.magento.com/guides/v2.3/extension-dev-guide/plugins.html

The next steps to reduce the downtime are to check that the SCD is configured under the build phase and to increase the SCD.THREADS to speed up the build process. The SCD stands for static content deployment, which is the process of generating and deploying static files such as CSS, JS, images, etc. By configuring the SCD under the build phase, the static files are generated before the code is deployed to the production environment, which reduces the downtime during deployment. The SCD.THREADS is a variable that determines how many threads are used for parallel processing during the SCD. By increasing the SCD.THREADS, the developer can improve the performance and efficiency of the SCD process. Verified References: [Magento 2.4 DevDocs] 12

To display the "file upload" field and process the actual CSV import, the following two requirements must be met:

• The developer must create a new system configuration setting that specifies the path to the CSV file.
• The developer must create a new controller action that handles the file upload and import process.

Thesystem.xmlfile is used to define system configuration settings. The following XML snippet shows how to define a new system configuration setting for the CSV file path:

XML

/path/to/csv/file

TheController\Adminhtml\ShipmentFeescontroller class is used to handle the file upload and import process. The following code shows how to create a new controller action that handles the file upload and import process:

PHP

public function uploadAction()

{

$file = $this->getRequest()->getFile('shipment_fees_csv_file');

if ($file->isUploaded()) {

$importer = new ShipmentFeesImporter();

$importer->import($file);

}

return $this->redirect('adminhtml/system_config/edit/section/shipment_fees');

}

The variable env: composer_auth is located in the Project variables section in the Project Web Interface. This variable is used to store the authentication credentials for Composer repositories that require access keys or tokens. The developer can set this variable at the project level to apply it to all environments, or override it at the environment level if needed. Verified References: [Magento 2.4 DevDocs] 2

The developer can add a virtual type for Myvendor\MyModuie\Modei\customPdfupioader specifying the aiiowedExtensions and the maxFiiesize for the constructor, within the module’s di.xmi. This way, the developer can reuse the existing file uploader class and customize it for the specific field without modifying the core code. Verified References: [Magento 2.4 DevDocs] [Magento Stack Exchange]

Theinput_typeattribute of a product EAV attribute specifies the type of input field that will be used to enter the value of the attribute in the admin panel. Thetextareainput type is used for WYSIWYG fields. If theinput_typeattribute is not set totextarea, then the attribute will not appear as WYSIWYG in the admin panel.

To fix this, the developer should set theinput_typeattribute totextarea.

ThestartEnvironmentEmulation()method resets the translation locale to the one of the emulated stores, which overrides the locale the developer has set when the order ofsetLocale()andstartEnvironmentEmulation()is used as displayed above.

The correct way to achieve the desired result is to use theemulate()method to temporarily modify the translation locale. The following code shows how to do this:

PHP

$this->_translate->emulate('en_US');

// Render the template

$this->_translate->revert();

This code will set the translation locale to English before rendering the template, and then revert the locale back to the default value after the template has been rendered.

ThestartEnvironmentEmulation()method is used to emulate a different store view or website. This can be useful for testing purposes, or for developing features that need to work in different environments.

Theemulate()method is used to temporarily modify the translation locale. This can be useful for rendering templates in a specific language, or for testing features that need to work in different languages.

The developer can achieve this by adding the following configuration to their di.xml file:

XML

This configuration will ensure that all instances of theCustom\Module\Model\Exampleclass will receive a new instance of theMagento\Filesystem\Adapter\Localclass.

The command used to upgrade ECE-Tools on an Adobe Commerce Cloud platform is composer update magento/ece-tools --with-all-dependencies. This command will update the ECE-Tools package and its dependencies to the latest version available in the composer repository. The developer then needs to commit and push the changes to the composer.json and composer.lock files and redeploy the environment. Verified References: [Magento 2.4 DevDocs]

The probable cause for the delay in reflecting the changes on the frontend after a full product import is the combination of the number of products, customer groups and websites. This leads to a huge amount of values being stored in the price index which is too large to be processed at a normal speed. The price index calculates the final price of each product for each customer group and website, taking into account various factors such as tax, discounts, catalog price rules, etc. When there are many products, customer groups and websites, the price index becomes very complex and time-consuming to update. Verified References: [Magento 2.4 DevDocs] [Magento Stack Exchange]

The following SearchCriteria query will replicate the SQL query:

$searchCriteria = new \Magento\Framework\Api\SearchCriteriaBuilder();

$searchCriteria->addFilter('name', 'Brand 1', 'eq');

$searchCriteria->addFilter('status', 1, 'eq');

$brandCollection = $this->brandRepository->getList($searchCriteria);

The extension attribute is referencing the repository instead of the interface it implements. The correct XML snippet should be:

XML

group="General"

translate="true">

This attribute stores an array of custom values for the invoice.

Magento\Sales\Api\Data\InvoiceInterface

Thesource_modelattribute specifies the interface that the extension attribute is associated with. In this case, the extension attribute is associated with theMagento\Sales\Api\Data\InvoiceInterfaceinterface.

The developer has to add a formkey for the new export option because the formkey is required for security reasons. Without the formkey, the request will be rejected and redirected to the dashboard page. Verified References: [Magento 2.4 User Guide] [Magento 2.4 DevDocs]

The CLI command that the developer would use to update the admin url is magento-cloud variable:set ADMIN_URL. This command sets an environment variable called ADMIN_URL with a custom value for the admin url on a specific environment. Environment variables are configuration settings that affect the behavior of the Adobe Commerce Cloud application and services. By setting an environment variable for ADMIN_URL, the developer can change the default admin url to a unique url for every branch/environment of their Adobe Commerce Cloud project. Verified References: [Magento 2.4 DevDocs]

The developer should create an extension attribute on theMagento\Sales\Api\Data\OrderInterfaceinterface and an after plugin on theMagento\Sales\Api\OrderRepositoryInterface::get()andMagento\Sales\Api\OrderRepositoryInterface::getList()methods.

The extension attribute will store the custom data. The after plugin will be used to add the custom data to the order object when it is fetched from the API.

Here is the code for the extension attribute and after plugin:

PHP

namespace MyVendor\MyModule\Api\Data;

interface OrderExtensionInterface extends \Magento\Sales\Api\Data\OrderInterface

{

/**

* Get custom data.

*

* @return string|null

*/

public function getCustomData();

/**

* Set custom data.

*

* @param string $customData

* @return $this

*/

public function setCustomData($customData);

}

namespace MyVendor\MyModule\Model;

class OrderRepository extends \Magento\Sales\Api\OrderRepositoryInterface

{

/**

* After get order.

*

* @param \Magento\Sales\Api\OrderRepositoryInterface $subject

* @param \Magento\Sales\Api\Data\OrderInterface $order

* @return \Magento\Sales\Api\Data\OrderInterface

*/

public function afterGetOrder($subject, $order)

{

if ($order instanceof OrderExtensionInterface) {

$order->setCustomData('This is custom data');

}

return $order;

}

/**

* After get list.

*

* @param \Magento\Sales\Api\OrderRepositoryInterface $subject

* @param \Magento\Sales\Api\Data\OrderInterface[] $orders

* @return \Magento\Sales\Api\Data\OrderInterface[]

*/

public function afterGetList($subject, $orders)

{

foreach ($orders as $order) {

if ($order instanceof OrderExtensionInterface) {

$order->setCustomData('This is custom data');

}

}

return $orders;

}

}

Once the extension attribute and after plugin are created, the custom data will be added to orders fetched from the API.