We need to register the user for our newsletter: public function store() We need to send a notification to our analytics software: public function store() Next we need to send a welcome email to the new user: public function store()
The controller might look something like this: public function store() If you remember back to our social application analogy, imagine if we were dealing with registering a new user. This allows you to separate your events and your listeners into two distinct areas. When an event is triggered it does not need to know anything about what will happen as a consequence of firing the event. The beautiful thing about using an event-based architecture is, you maintain your separation of concerns. So hopefully you understand the theory of how events work, why would you actually want to use them? Some significant thing is triggered whilst another separate thing listens for the event to happen and then takes an action. That is the basic theory of how events work. For example, you will want to send the user an email, subscribe them to your newsletter or add them to a queue to suggest the next steps for using your application.īy defining the user create event, you can set all of these tasks in motion whenever a new user signs up for your application. When a new user signs up in your application, you will probably have a list of things that you need to happen. For example, if you are creating a social application, an event you might be interested in could be whenever a new user signs up. In programming, an event is just an occurrence of a particular thing at a particular moment in time.
In this tutorial I’m going to look at events, why you would want to use them and how you can leverage them to your advantage in Laravel 4.
Thinking about building an event based architecture is as much of a shift in mindset as anything else. Using events in application development is not really a newbie topic, so I think a lot of developers who are just getting started miss out on this amazing opportunity to build better, more maintainable software. It also makes it really easy for us to create events for our own applications so that we create software that is easier to extend and maintain for others. One of my personal favourite things about Laravel 4 is how it is built around the architecture of events.Įvents make it really easy for developers like us to hook on to or extend the underlying architecture of the framework in a clean and maintainable way. Laravel 4 is a fantastic modern PHP framework for a number of reasons.
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