diff options
Diffstat (limited to 'activerecord/lib/active_record/associations/through_association.rb')
| -rw-r--r-- | activerecord/lib/active_record/associations/through_association.rb | 39 |
1 files changed, 27 insertions, 12 deletions
diff --git a/activerecord/lib/active_record/associations/through_association.rb b/activerecord/lib/active_record/associations/through_association.rb index 6b87993ba3..15e6565e69 100644 --- a/activerecord/lib/active_record/associations/through_association.rb +++ b/activerecord/lib/active_record/associations/through_association.rb @@ -1,10 +1,27 @@ +# frozen_string_literal: true + module ActiveRecord - # = Active Record Through Association module Associations + # = Active Record Through Association module ThroughAssociation #:nodoc: - delegate :source_reflection, :through_reflection, to: :reflection + delegate :source_reflection, to: :reflection private + def through_reflection + @through_reflection ||= begin + refl = reflection.through_reflection + + while refl.through_reflection? + refl = refl.through_reflection + end + + refl + end + end + + def through_association + @through_association ||= owner.association(through_reflection.name) + end # We merge in these scopes for two reasons: # @@ -13,7 +30,7 @@ module ActiveRecord def target_scope scope = super reflection.chain.drop(1).each do |reflection| - relation = reflection.klass.all + relation = reflection.klass.scope_for_association scope.merge!( relation.except(:select, :create_with, :includes, :preload, :joins, :eager_load) ) @@ -36,24 +53,22 @@ module ActiveRecord def construct_join_attributes(*records) ensure_mutable - if source_reflection.association_primary_key(reflection.klass) == reflection.klass.primary_key + association_primary_key = source_reflection.association_primary_key(reflection.klass) + + if association_primary_key == reflection.klass.primary_key && !options[:source_type] join_attributes = { source_reflection.name => records } else join_attributes = { - source_reflection.foreign_key => - records.map { |record| - record.send(source_reflection.association_primary_key(reflection.klass)) - } + source_reflection.foreign_key => records.map(&association_primary_key.to_sym) } end if options[:source_type] - join_attributes[source_reflection.foreign_type] = - records.map { |record| record.class.base_class.name } + join_attributes[source_reflection.foreign_type] = [ options[:source_type] ] end if records.count == 1 - Hash[join_attributes.map { |k, v| [k, v.first] }] + join_attributes.transform_values!(&:first) else join_attributes end @@ -99,7 +114,7 @@ module ActiveRecord attributes[inverse.foreign_key] = target.id end - super(attributes) + super end end end |