Symfony doctrine manyToOne relationship with a composite id - symfony

Question

In a Symfony2 app, I have two entites: Club and Member.
I have to use a composite primary keys with four specific fields (edition, distance, district and id). Here is the ORM yml. The Club schema is correctly generated.
MyBundle\Entity\Club:
type: entity
oneToMany:
members:
targetEntity: Member
mappedBy: club
table: null
id:
edition:
type: string
length: 4
distance:
type: string
length: 1
district:
type: integer
id:
type: integer
fields:
name:
type: string
length: 255
location:
type: string
length: 255
lifecycleCallbacks: { }
My problem is now to link the Member entity. Here is my current ORM yml:
MyBundle\Entity\Member:
type: entity
manyToOne:
club:
targetEntity: Club
inversedBy: members
joinColumn:
name: club_id
referencedColumnName: ??? What if composite PK ???
table: null
id:
id:
type: integer
id: true
generator:
strategy: AUTO
fields:
lastname:
type: string
length: 255
firstname:
type: string
length: 255
...
What to set as referencedColumnName? How to set up the reference with a composite FK?
EDIT
I found that is possible to set multiple join colums with annotation #joinColumns{#joinColumn...#joinColumn...}. Something similar for yml configuration? I can't find any example.

Answer 1

Try something like this, I think it's the correct YML syntax:
manyToOne:
club:
targetEntity: Club
inversedBy: members
joinColumns:
- joinColumn:
name: club_id
referencedColumnName: id
- joinColumn:
name: club_edition
referencedColumnName: edition
- joinColumn:
name: club_distance
referencedColumnName: distance
- joinColumn:
name: club_district
referencedColumnName: district
(However, for your continued sanity, I'd strongly recommend trying to avoid composite keys where possible!)