Extended MVC

We make use of the Model-View-Controller framework.

Generally speaking, the model layer is responsible for the interaction with the database and data manipulation. Next, the view layer is responsible for rendering data into a web page. The controller is responsible for processing the request and interacts with the model and view layer to provide a response.

When we add some extra layers, we (approximately) get the following architecture within each module:

The responsibilities are as follows:

• Model: representing a data entity
• Mapper: interaction with the database to process Models
• Form: representation of the data fields of the Model with validation options
• Service: takes care of complex logic
• Controller: handles requests and serves a response
• View: renders the web page