How MVC works in Joomla?
3 Answers. The controller picks up the view variable in the url and using these determines which view needs to be used. It then sets the view to be used. The view then calls the model to fetch the data it requires and then passes this to the tmpl to be displayed.
What is MVC in Joomla?
Joomla is an object-oriented system that uses the MVC – Model, View Controller – design pattern wherever it possibly can. For example, you can use the MVC approach when you are building a new module, component or plug in and its also used in most of the important inner workings of Joomla.
What is a Controller in MVC?
The Controller is responsible for controlling the application logic and acts as the coordinator between the View and the Model. The Controller receives an input from the users via the View, then processes the user’s data with the help of Model and passes the results back to the View.
Are there any MVC classes in Joomla library?
There are several Joomla library MVC classes under libraries/src/MVC and this section aims to give an overview of these classes and explain when your own component should use each class. It doesn’t attempt to provide a full description of each class’s functionality.
How is a model view controller implemented in Joomla?
This page describes the Model-View-Controller design pattern as implemented in Joomla.
What are the advantages of following Joomla MVC pattern?
However, an advantage of following the Joomla MVC pattern is that you can make full use the Joomla library MVC classes, which greatly reduces the amount of code you need to write. The main role of the entry point PHP file (example.php for com_example) is to determine which controller to run.
When does Joomla start to process a request?
When Joomla is started to process a request from a user, such as a GET for a particular page, or a POST containing form data, one of the first things that Joomla does is to analyse the URL to determine which component will be responsible for processing the request, and hand control over to that component.