module CQL::Relations

The CQL::Relations module provides utilities for managing relationships between tables in a database schema. It allows you to define associations such as has_many, belongs_to, and many_to_many, enabling easy navigation and querying of related data.

Example: Defining Relations

struct User < CQL::Record(Int64)
  has_many :posts
end

struct Post < CQL::Record(Int64)
  belongs_to :user
end

Methods

has_many(relation_name : Symbol)

Defines a has_many relationship between the current model and another.

• @param relation_name [Symbol] The name of the related model.

• @return [Nil]

Example:

has_many :posts

belongs_to(relation_name : Symbol)

Defines a belongs_to relationship between the current model and another.

• @param relation_name [Symbol] The name of the related model.

• @return [Nil]

Example:

belongs_to :user

many_to_many(relation_name : Symbol, through : Symbol)

Defines a many_to_many relationship between two models through a join table.

• @param relation_name [Symbol] The name of the related model.

• @param through [Symbol] The name of the join table.

• @return [Nil]

Example:

many_to_many :tags, through: :posts_tags