module CQL::Relations::ManyToMany

Macros

macro many_to_many(name, type, join_through, cascade = false)

Defines a many-to-many relationship between two models. This method will define a getter method that returns a ManyToMany::Collection. The collection can be used to add and remove records from the join table.

• param : name (Symbol) - The name of the association

• param : type (CQL::Model) - The target model

• param : join_through (CQL::Model) - The join table model

• param : cascade (Bool) - Delete associated records

Example

struct Movie < CQL::Model(Int64)
  property id : Int64
  property title : String
  many_to_many :actors, Actor, join_through: :movies_actors
end

struct Actor < CQL::Model(Int64)
  property id : Int64
  property name : String
end

struct MoviesActors < CQL::Model(Int64)
  property id : Int64
  property movie_id : Int64
  property actor_id : Int64
end