Chapter 4: Relationships – How to Link Records

4.1 Has Many Relationship

4.1.1 Create Parent and Child at the Same Time

4.2 How to Read Related Data with Ash.Query.load/2

4.3 Belongs To Relationship

4.4 Create Child and Parent at the Same Time

4.5 Many To Many Relationship

4.6 Has One

4.7 Filtering With Relationships

4.8 Retrieving Nested Relationships

4.9 Deleting Records With Related Records

4.9.1 Deleting at the Data Layer (Postgres)

4.9.2 Nullifying Related Records Instead of Deleting

4.9.3 Delete Related Records Without Relying on the Data Layer

Summary