How to edit an entity in a listener class?

Hello,

Can anyone give me an example of editing an entity in a listener class? Can I use doctrineHelper?

• This topic was modified 4 years, 3 months ago by  Adam.

Topic

[AdamParticipant]

Those don’t work:

$entity = new Table();
$entity->setId(1);
$entity->setValue(‘TEST’);

$entityManager->merge($entity);
$entityManager->flush();

[vsorokaModerator]

Hello Adam,

here is an example https://github.com/oroinc/OroCalendarBundle/blob/master/EventListener/EntityListener.php

[AdamParticipant]

What if I don’t have OnFlushEventArgs $event class? Which class did I suppose to inject into my listener?

[Andrey YatsenkoModerator]

Hi Adam,
To what event did you subscribe?
It doesn’t matter what event you will chose, you’ll always have this “$event” in event listener, this can be different type, but anyway.

If you want to flush on event listener – it’s better to subscribe to

YAML

- { name: doctrine.event_listener, event: onFlush } # or - { name: doctrine.event_listener, event: postFlush }

1 2 3

- { name: doctrine.event_listener, event: onFlush } # or - { name: doctrine.event_listener, event: postFlush }

With first option you have possibility to work with UnitOfWork directly and it’s better for performance reasons.
But most times second option will be easier to use as there you can flush directly without knowing how UnitOfWork works.

It’s highly recommended to read this articles in order to understand doctrine event listeners
https://symfony.com/doc/2.8/doctrine/event_listeners_subscribers.html
https://www.doctrine-project.org/projects/doctrine-orm/en/2.6/reference/events.html

[Author]

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