How to override an event subscriber in symfony?

by cali_green , in category: PHP Frameworks , a month ago

How to override an event subscriber in symfony?

Facebook Twitter LinkedIn Telegram Whatsapp

1 answer

Member

by kadin , a month ago

@cali_green 

To override an event subscriber in Symfony, you can create a new event subscriber that extends the existing event subscriber class and then override the methods you want to change.


Here is an example of how you can override an event subscriber:

  1. Create a new class that extends the existing event subscriber class:
 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
use SymfonyComponentEventDispatcherEventSubscriberInterface;

class CustomEventSubscriber extends ExistingEventSubscriber implements EventSubscriberInterface
{
    // Override the methods you want to change
    public static function getSubscribedEvents()
    {
        return [
            'existing.event' => 'onExistingEvent',
            // Add new events or change existing events
            'new.event' => 'onNewEvent',
        ];
    }

    public function onExistingEvent($event)
    {
        // Add custom logic or change the existing logic
    }

    public function onNewEvent($event)
    {
        // Add custom logic for the new event
    }
}


  1. Register the new event subscriber in your Symfony configuration:
1
2
3
4
services:
    AppEventSubscriberCustomEventSubscriber:
        tags:
            - { name: kernel.event_subscriber }


  1. Make sure to remove or unregister the existing event subscriber if necessary.


By following these steps, you can override an event subscriber in Symfony by extending the existing class and making changes to the methods you want to customize.