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Questions and Answers

Describe Magento's module-based architecture.

Magento is built using a modular structure, with different modules responsible for various functionalities. These modules can interact with each other, potentially leading to side effects.

What are the pros and cons of EAV architecture?

EAV architecture uses separate tables for attributes, entities, and values, which can improve flexibility and scalability. However, it can make querying and joining data more complex.

Describe how to locate different types of files in Magento. Where are the files containing JavaScript, HTML, and PHP located? How do you find the files responsible for certain functionality?

Magento follows a structured directory structure. For instance, JavaScript files are typically located in pub/static/frontend, HTML templates in view/frontend/templates, and PHP files in app/code. To find files responsible for specific functionalities, you can use editors with search functionality or use the Magento command line interface (CLI) to find files based on keywords or regular expressions.

Describe how to extend existing entities. What mechanisms are available to extend existing classes, for example by adding a new attribute, a new field in the database, or a new related entity?

You can extend existing entities in Magento by using various mechanisms like creating custom modules, implementing plugins, or utilizing the EAV model. For creating new fields in the database, you can write setup scripts that define the modifications to the database schema. Signup and view all the answers

Describe how to use configuration files in Magento. Which configuration files correspond to different features and functionality?

Magento uses configuration files in XML format, located in the app/etc directory. These files are used to define settings, preferences, and other configurations for various features. For example, the <code>env.php</code> file is responsible for environment-specific settings like database connection credentials. Signup and view all the answers

How do you debug your `layout.xml` files and verify that the right layout instructions are used?

You can debug your <code>layout.xml</code> files by using Magento's built-in debugging tools, such as the <code>bin/magento dev:template:rewrite</code> command. This command will generate HTML output based on the current layout configuration. However, you can also use the browser's developer tools to inspect the generated HTML and examine the layout structure. Signup and view all the answers

Describe how to add a new system configuration option? What is the difference in this process for different option types (secret, file)?

To add a new system configuration option in Magento, you need to define it in the <code>system.xml</code> file. You can specify the type of the option, such as text, textarea, select, or file. For secret values, you must use <code>system.xml</code> specifically in the <code>system.xml</code> file to ensure secure storage. Signup and view all the answers

Describe how to customize the process of adding a product to the cart. Which different scenarios should you take into account?

You can customize the cart adding process in Magento by utilizing various events and observers that are triggered when adding a product to the cart. For example, you can use the <code>checkout_cart_product_add_after</code> event to modify the added products' price or quantity. The specific scenarios you need to consider include customizing the behavior of the checkout cart based on product types, implementing custom validation rules, or modifying the cart's visual presentation. Signup and view all the answers

Flashcards

Magento Module-based Architecture

Magento's architecture is organized into independent modules, each focusing on specific functionalities. Modules interact with each other.

Magento Directory Structure

Magento's files and folders are arranged in a specific way for easy organization and management. Understanding this structure is crucial.

Configuration XML and Variables Scope

Magento uses XML configuration files and scopes to control how various settings apply to different parts of the website.

Dependency Injection (Magento)

Magento uses DI to allow components (objects) to receive other components as input. This promotes loose coupling.