Symfony 2 - Updating a table based on newly inserted record in another table
- by W00d5t0ck
I'm trying to create a small forum application using Symfony 2 and Doctrine 2. My ForumTopic entity has a last_post field (oneToOne mapping). Now when I persist my new post with
$em->persist($post);
I want to update my ForumTopic entity so its last_post field would reference this new post. I have just realised that it cannot be done with a Doctrine postPersist Listener, so I decided to use a small hack, and tried:
$em->persist($post);
$em->flush();
$topic->setLastPost($post);
$em->persist($post);
$em->flush();
but it doesn't seem to update my topics table.
I also took a look at http://docs.doctrine-project.org/projects/doctrine-orm/en/2.1/reference/working-with-associations.html#transitive-persistence-cascade-operations hoping it will solve the problem by adding cascade: [ 'persist' ] to my Topic.orm.yml file, but it didn't help, either.
Could anyone point me to a solution or an example class?
My ForumTopic is:
FrontBundle\Entity\ForumTopic:
type: entity
table: forum_topics
id:
id:
type: integer
generator:
strategy: AUTO
fields:
title:
type: string(100)
nullable: false
slug:
type: string(100)
nullable: false
created_at:
type: datetime
nullable: false
updated_at:
type: datetime
nullable: true
update_reason:
type: text
nullable: true
oneToMany:
posts:
targetEntity: ForumPost
mappedBy: topic
manyToOne:
created_by:
targetEntity: User
inversedBy: articles
nullable: false
updated_by:
targetEntity: User
nullable: true
default: null
topic_group:
targetEntity: ForumTopicGroup
inversedBy: topics
nullable: false
oneToOne:
last_post:
targetEntity: ForumPost
nullable: true
default: null
cascade: [ persist ]
uniqueConstraint:
uniqueSlugByGroup:
columns: [ topic_group, slug ]
And my ForumPost is:
FrontBundle\Entity\ForumPost:
type: entity
table: forum_posts
id:
id:
type: integer
generator:
strategy: AUTO
fields:
created_at:
type: datetime
nullable: false
updated_at:
type: datetime
nullable: true
update_reason:
type: string
nullable: true
text:
type: text
nullable: false
manyToOne:
created_by:
targetEntity: User
inversedBy: forum_posts
nullable: false
updated_by:
targetEntity: User
nullable: true
default: null
topic:
targetEntity: ForumTopic
inversedBy: posts
