In Ruby on Rails, the controller plays a crucial role in handling incoming HTTP requests, processing data, and rendering appropriate responses. The controller acts as an intermediary between the model (which represents the data) and the view (which presents the data to the user). Here are the main responsibilities of a Rails controller:
1. Routing and handling requests
The controller receives incoming HTTP requests from the browser or other clients and maps them to specific actions based on the defined routes in the application.
2. Processing data
The controller retrieves data from the model, processes it, and prepares it for rendering in the view. This includes tasks such as:
Retrieving data from the database using model methods
