Method: ActiveRecord::Reflection::ThroughReflection#through_reflection

Defined in:

lib/active_record/reflection.rb

#through_reflection ⇒ Object

Returns the AssociationReflection object specified in the :through option of a HasManyThrough or HasOneThrough association.

class Post < ActiveRecord::Base
  has_many :taggings
  has_many :tags, through: :taggings
end

tags_reflection = Post.reflect_on_association(:tags)
tags_reflection.through_reflection
# => <ActiveRecord::Reflection::AssociationReflection: @macro=:has_many, @name=:taggings, @active_record=Post, @plural_name="taggings">

# File 'lib/active_record/reflection.rb', line 520

def through_reflection
  active_record.reflect_on_association(options[:through])
end