Method: ActiveRecord::Reflection::ThroughReflection#source_reflection

Defined in:

activerecord/lib/active_record/reflection.rb

#source_reflection ⇒ Object

Returns the source of the through reflection. It checks both a singularized and pluralized form for :belongs_to or :has_many.

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

class Tagging < ActiveRecord::Base
  belongs_to :post
  belongs_to :tag
end

tags_reflection = Post.reflect_on_association(:tags)
tags_reflection.source_reflection
# => <ActiveRecord::Reflection::BelongsToReflection: @name=:tag, @active_record=Tagging, @plural_name="tags">

# File 'activerecord/lib/active_record/reflection.rb', line 797

def source_reflection
  through_reflection.klass._reflect_on_association(source_reflection_name)
end