Mastering Doctrine Relationships in Symfony 3


What you'll be learning

In the part 1 of the Doctrine Tutorial we got a sweet setup with Doctrine: entities, queries, migrations and fixtures.

But, we left out one big piece: database relations. Once you've mastered these, you'll be unstoppable. Unfortunately, a lot of information out there make Doctrine relations look over-complicated. Actually, they're simple and beautiful. Sure, they have some pitfalls - but they'll also help you build a complex data structure in no time.

  • ManyToOne relationships (associations)
  • The OneToMany side of a relation
  • The downfall of owning versus inverse sides of a relation
  • Doing magic with the ArrayCollection
  • Querying with Joins

... and more - like some magic with the "Param Conversion".

Your Guides

Ryan Weaver Leanna Pelham

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