Action

Actions are classes that take care of one specific task. Controllers (HTML/JSON/XML/etc.), Console Commands, Nova Actions are just a thin layer that calls Action classes.

Conventions:

• final and readonly
• do not extend any base class
• have only one public method: execute(...) (except optional magic ones)
• execute method is transactional-safe
• constructor-level Dependency Injection can be used
• should not be aware about the context (request, session, HTTP/console/job)

You can read everything about actions in the Blogpost by Freek Van der Herten.