Laravel MVC

Laravel follows the Model-View-Controller (MVC) architectural pattern, which is a popular design pattern for building web applications. The MVC pattern helps to separate concerns and maintain code organization, making it easier to develop and maintain applications. Here’s how Laravel implements the MVC pattern:

  1. Model: The model represents the data and business logic of the application. In Laravel, models are PHP classes that interact with the database. They encapsulate the logic for retrieving, creating, updating, and deleting data from the database. Models typically correspond to database tables, and each model class defines the structure and relationships of the associated table. Laravel’s Eloquent ORM (Object-Relational Mapping) provides a convenient and expressive way to work with database models.
  2. View: The view represents the presentation layer of the application. Views are responsible for rendering the user interface and displaying data to the user. In Laravel, views are typically written in a combination of HTML and Blade templating language. Blade provides features such as template inheritance, conditional statements, loops, and variable substitution, making it easy to create dynamic and reusable views. Views can be used to display data from the model, receive user input, and generate HTML responses.
  3. Controller: The controller acts as an intermediary between the model and the view. It handles user requests, processes data, and prepares the appropriate response. Controllers are responsible for receiving input from the user, validating and sanitizing the input, interacting with the model to retrieve or modify data, and passing the data to the view for display. In Laravel, controllers are typically defined as PHP classes and contain methods that correspond to different actions or endpoints of the application.

The flow of data in the Laravel MVC pattern typically follows these steps:

  1. The user interacts with the application by sending a request to a specific URL.
  2. The request is routed to the appropriate controller method based on the defined routes.
  3. The controller receives the request, processes any input, interacts with the model to retrieve or modify data, and prepares the data to be passed to the view.
  4. The controller selects the appropriate view, passes the data to the view, and returns a response.
  5. The view receives the data from the controller, renders the HTML or other output, and returns the response to the user’s browser or client.
  6. The user sees the rendered view in their browser, interacts with it if needed, and can initiate new requests to repeat the process.

By separating concerns into models, views, and controllers, the MVC pattern helps in keeping code organized, promotes reusability, and allows for easier maintenance and testing of the application. Laravel’s implementation of MVC, along with its additional features and conventions, provides a powerful and developer-friendly framework for building web applications.