AD0-E716 Sample Questions Answers

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 following XML will allow the new content type to be a child of slider content types:

slider

improved_slide

Use code with caution. 

This XML will tell Magento that theslidercontent type can haveimproved_slidecontent types as children.

Decreasing the batch size value improves performance by reducing the memory usage for the temporary table. The batch size value determines how many rows of data are processed at a time by the indexer. A large batch size value can cause the allocated memory size for the temporary table to exceed 20% of innodb_buffer_pool_size, which can result in errors and slow down the indexing process. By lowering the batch size value, the indexer can process the data more efficiently and avoid memory issues. Verified References: [Magento 2.4 DevDocs] [Magento Stack Exchange]

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]

The developer can use the canInvoice method of the order object to check if the order can be invoiced or not. This method returns true if the order has a state of new, processing, or payment review and has not been fully invoiced yet. The developer can use this method in a conditional statement to send the order ID to the ERP system only if the order can be invoiced. Verified References: [Magento 2.4 DevDocs] [Magento Stack Exchange]

Some of the features provided by ECE-Tools are building application, applying custom patches, and dumping configuration for static content deployment. ECE-Tools is a set of scripts and tools designed to manage and deploy Adobe Commerce Cloud projects. It provides commands for building application code, applying patches for Magento core issues or custom modules, and dumping configuration settings for static content deployment optimization. Verified References: [Magento 2.4 DevDocs] 2

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 anexact 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 deal with this issue by modifying the admin path timeout value in seconds in the Fastly Configuration section > Advanced Configuration in the Admin Panel. Fastly is a cloud-based caching service that improves site performance and security for Adobe Commerce Cloud projects. Fastly has a default timeout value of 180 seconds for admin requests, which means that any request that takes longer than 180 seconds will be terminated and result in a timeout error. The developer can increase this value to allow longer processing time for admin requests without causing errors. The developer also needs to save the configuration and upload VCL to Fastly to apply the changes. Verified References: [Magento 2.4 DevDocs]

The developer can customize the appearance of the error message by calling thesetDecorationType()method on theSymfony\Console\Output\OutputInterfaceobject before callingwriteln(). ThesetDecorationType()method takes a single argument, which is the type of decoration that the developer wants to use. In this case, the developer wants to use theSTYPE_ERRORdecoration, which will highlight the message in red.

Here is an example of how to customize the appearance of the error message:

$output = new Symfony\Console\Output\ConsoleOutput();

$output->setDecorationType(Symfony\Console\Output\OutputInterface::STYPE_ERROR);

$output->writeln('This is an error message.');

The output of this code will be an error message that is highlighted in red.

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.

According to the Develop data and schema patches guide for Magento 2 developers, data patches can also implement PatchRevertabieinterface to provide rollback functionality for their changes. The revert() method contains the instructions to undo the data modifications made by the patch. To ensure that the product attribute is removed when the module is uninstalled, the developer should make the data patch implement PatchRevertabieinterface and implement the revert method to remove the product attribute using EavSetupFactory or AttributeRepositoryInterface. Verified References:https://devdocs.magento.com/guides/v2.3/extension-dev-guide/declarative-schema/data-patches.html

To ensure that the configuration is deployed and consistent across all environments, the developer can use the following steps:

• Create a data patch that contains the configuration for the new website.
• Deploy the data patch to all environments.
• Use the magento deploy:status command to verify that the configuration has been deployed to all environments.

The correct answers are A and C.

The errors in the snippet are:

• Column roll_no does not have an index. It is needed since attribute_identity is set to true.
• Column student_name does not have an attribute length.

Theattribute_identityattribute specifies whether the primary key of the table should be auto-incremented. Ifattribute_identityis set totrue, then theroll_nocolumn must have an index. Thestudent_namecolumn does not have an attribute length, which is required for string columns.

The following code shows how to fix the errors:

XML

int

true

true

false

int

false

true

false

true

true

string

255

false

Once the errors have been fixed, the table can be created successfully.

The order in which the ECE-Tools package applies patches is as follows:

• All required Magento patches included in the Cloud Patches for Commerce package.
• Selected optional Magento patches included in the Quality Patches Tool.
• Custom patches in the /m2-hotfixes directory in alphabetical order by patch name.

The ECE-Tools package is a set of scripts and tools designed to manage and deploy Adobe Commerce Cloud projects. The Cloud Patches for Commerce package is a dependency of ECE-Tools that provides a set of required patches for Magento core issues that affect Adobe Commerce Cloud functionality. The Quality Patches Tool is an optional tool that allows developers to apply individual patches for specific Magento issues without waiting for a full product release. The /m2-hotfixes directory is a directory where developers can place their own custom patches for their Adobe Commerce Cloud projects. Verified References: [Magento 2.4 DevDocs]

The reason why the new customer did not receive a welcome email is that the Outgoing Emails setting is disabled in the Environment Settings in the Project Web Interface. This setting controls whether emails are sent from the application or not. By default, this setting is disabled for integration environments to prevent spamming or testing emails from being sent to real customers or recipients. The developer can enable this setting if they want to test email functionality on integration environments. Verified References: [Magento 2.4 DevDocs]

The developer needs to add environment level environment variables to be sure that the payment configurations are always properly set on the Staging environment. Environment variables are configuration settings that affect the behavior of the Adobe Commerce Cloud application and services. Environment variables can be set at the project level or the environment level. Project level variables apply to all environments, while environment level variables override the project level variables for a specific environment. The developer can useenvironment level variables to customize the payment configurations for the Staging environment without affecting other environments. Verified References: [Magento 2.4 DevDocs]

The possible reason why the payment method is missing in the admin is that in the module config.xml, the node can_use_internal was not set to true. This node determines whether the payment method can be used in the admin area or not. If it is set to false or omitted, the payment method will not be available for admin orders. To enable the payment method for admin use only, the node can_use_internal should be set to true and the node can_use_checkout should be set to false. Verified References: [Magento 2.4 DevDocs] [Magento Stack Exchange]