AD0-E716 Adobe Commerce Developer Expert Questions and Answers

 The steps necessary prior to redeploying in order to upgrade to Enhanced Integration Environments are to limit the number of integration branches to two and to submit a support ticket requesting the upgrade. Enhanced Integration Environments are an improved version of integration environments that offer better performance, stability, and security. They have a limit of four active branches at a time, but only two branches can be migrated from standard integration environments. The developer needs to delete or deactivate any extra branches before requesting the upgrade from Adobe support. Verified References: [Magento 2.4 DevDocs]

To store a block in the system cache, the developer needs to set values for both the cache_lifetime and cache_key data properties of the block. The cache_lifetime property specifies how long the block should be cached, and the cache_key property specifies a unique identifier for the block.

The following code shows how to set the cache_lifetime and cache_key data properties of a block:

PHP

$block->setData('cache_lifetime', 600);

$block->setData('cache_key', 'my_custom_block');

Once the cache_lifetime and cache_key data properties have been set, the block will be stored in the system cache and will not be regenerated on each page load.

The startEnvironmentEmulation() method resets the translation locale to the one of the emulated stores, which overrides the locale the developer has set when the order of setLocale() and startEnvironmentEmulation() is used as displayed above.

The correct way to achieve the desired result is to use the emulate() 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.

The startEnvironmentEmulation() 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.

The emulate() 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 use the plugin to trigger the consumer restart by calling the function \Magento\Framework\MessageQueue\Consumers\TriggerRe5tartInterface:trigger(). This function will write a flag to the cache storage that will be checked by the consumer process. If the flag is set, the consumer process will terminate itself and restart with the updated configuration. Verified References: [Magento 2.4 DevDocs] 1

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 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]

In Magento 2, to add a new action to a pre-existing route without interfering with the existing functionality, the new action should be placed in the same directory structure under the new module’s controller namespace. Magento's autoloading mechanism will automatically detect and include it alongside the original module's actions.

Here's how you can achieve this:

Directory Structure: Ensure that your new module's controller directory structure mirrors that of the original module.

Controller Action: Define the new action within the appropriate directory.

For example, if you want to add a new action to the catalog route in Magento_Catalog:

Create a directory structure app/code/My/Module/Controller/Catalog/.

Add your new action class in this directory, for example:

namespace My\Module\Controller\Catalog;

use Magento\Framework\App\Action\Action;

use Magento\Framework\App\Action\Context;

class NewAction extends Action

{

public function __construct(Context $context)

{

parent::__construct($context);

}

public function execute()

{

// Your custom logic here

}

}

Router Configuration: Magento automatically includes this action when the route matches.

By following this method, you ensure that your new action is added seamlessly without modifying the original module or causing conflicts. Magento's router will include and recognize your action based on the directory and namespace conventions.

Sources:

Fundamentals of Magento 2 Development documents​​ .

Magento 2 official developer documentation.

According to the Magento Stack Exchange answer, system.xml is a file that defines the configuration fields for the admin area. Each field can have a validate attribute that specifies a validation rule for the field value. Magento provides some built-in validation rules, such as phoneUS, which validates a US telephone number. Therefore, to ensure that the option contains a valid US telephone number, the developer needs to add phoneUS to the field in system.xml. Verified References: https://magento.stackexchange.com/questions/104570/magento-2-system-xml-validation-rules

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 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

The source_model attribute specifies the interface that the extension attribute is associated with. In this case, the extension attribute is associated with the Magento\Sales\Api\Data\InvoiceInterface interface.

According to the Develop data and schema patches guide for Magento 2 developers, data patches are classes that contain data modification instructions. They are defined in a //Setup/Patch/Data/.php file and implement MagentoFrameworkSetupPatchDataPatchInterface. Data patches can also implement Patchversioninterface to specify the module version that the patch is associated with. The getVersion() method returns the module version as a string. To skip changes that were already applied via old format (install/upgrade scripts), the developer should implement Patchversioninterface and return 1.5.4 on the getVersion() method. This way, the data patch will only be applied if the module version is greater than or equal to 1.5.4. Verified References: https://devdocs.magento.com/guides/v2.3/extension-dev-guide/declarative-schema/data-patches.html

The frame-ancestors directive specifies the domains that are allowed to embed the current page in an iframe. The connect-src directive specifies the domains that are allowed to be loaded by the current page through a <script> tag or XMLHttpRequest.

In this case, the developer has added an iframe that embeds a page from an external domain. The Content Security Policy (CSP) is preventing the iframe from being loaded because the domain of the external page is not listed in the frame-ancestors directive.

To fix this error, the developer needs to add the domain of the external page to the frame-ancestors directive. They can do this by adding the following line to the csp_whitelist.xml file:

https://www.example.com

The developer can create a snapshot before deploying a critical feature to their Adobe Commerce Cloud (Pro Plan) production by using the dedicated button on Project Web Interface. A snapshot is a backup of an entire environment, including code, data, media files, and configuration settings. A snapshot can be used to restore an environment to a previous state in case of any issues or errors during deployment or testing. The developer can create a snapshot by accessing the Project Web Interface, choosing an environment, and clicking Create Snapshot. Verified References: [Magento 2.4 DevDocs]

The shipping method would display $10 and customers would pay $10 for using the new shipping method. This is because the collectRates method sets the price and cost of the shipping method to 10 in the result object. The price is what is shown to the customer on the frontend and the cost is what is charged to the customer when they place the order. The handling fee is not used in this case because it is set to zero in the config.xml file. Verified References: [Magento 2.4 DevDocs] [Magento Stack Exchange]

The developer can update the Staging environment with the latest code from Production by logging in to the Project Web Interface, choosing the Staging environment, and clicking Sync. This will synchronize the code, data, and media files from Production to Staging, creating an exact copy of Production on Staging. The developer can then deploy the new release to Staging and test it before pushing it to Production. Verified References: [Magento 2.4 DevDocs]

The developer can extend the existing CartltemPrices GraphQL schema to include a custom base_price field by adding the following code to the module’s etc/schema.graphqls file:

extend type CartltemPrices { base_price: Money! @doc(description: “The base price of the cart item”) }

This code adds a new field called base_price to the CartltemPrices type and specifies that it is of type Money and it is not nullable. The @doc directive adds a description for the field that will be shown in the schema documentation. The developer also needs to create a custom resolver class for the base_price field and declare it in the di.xml file of the module. Verified References: [Magento 2.4 DevDocs] [Magento Stack Exchange]