CODEWITHSUNDEEP
symfonyormdoctrine-ormentity-relationship
Maxime Picard
Maxime Picard

Reputation: 683

Doctrine : advantages/drawback of a bidirectional relation

I just want to know what are advantages/drawback of a bidirectional relation in Doctrine with Symfony ?

All my relations are bidirectional, but I'm not sure if this will not cause a problem...

Thanks.

Upvotes: 4

Views: 233

Answers (1)

Jovan Perovic
Jovan Perovic

Reputation: 20193

As long as you don't mark relations as EAGER I think you're good. to go.

However, there is a small overhead since PHP has to, at least, create Proxy instances. Beware of this if you plan on serializing objects. Some serialization mechanism are programmed to resolve (load) proxy if they hit one. That would mean an extra round-trip to database server.

Bottom line: As you develop your model, ask yourself "Do I really need this?". It's super easy to add it later if you find yourself in that situation. Also, when it comes to OneToMany and ManyToOne, pay special attention to owning/inverse side concepts as it could introduce a number of WTFs/minute :)

Hope this helps you a bit...

Upvotes: 2

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