diff options
Diffstat (limited to 'activerecord/lib/active_record/associations/builder')
| -rw-r--r-- | activerecord/lib/active_record/associations/builder/belongs_to.rb | 13 | ||||
| -rw-r--r-- | activerecord/lib/active_record/associations/builder/has_and_belongs_to_many.rb | 53 |
2 files changed, 27 insertions, 39 deletions
diff --git a/activerecord/lib/active_record/associations/builder/belongs_to.rb b/activerecord/lib/active_record/associations/builder/belongs_to.rb index c161454c1a..4b6cb76081 100644 --- a/activerecord/lib/active_record/associations/builder/belongs_to.rb +++ b/activerecord/lib/active_record/associations/builder/belongs_to.rb @@ -36,7 +36,7 @@ module ActiveRecord::Associations::Builder # :nodoc: if (@_after_replace_counter_called ||= false) @_after_replace_counter_called = false - elsif saved_change_to_attribute?(foreign_key) && !new_record? + elsif association(reflection.name).target_changed? if reflection.polymorphic? model = attribute_in_database(reflection.foreign_type).try(:constantize) model_was = attribute_before_last_save(reflection.foreign_type).try(:constantize) @@ -49,14 +49,22 @@ module ActiveRecord::Associations::Builder # :nodoc: foreign_key = attribute_in_database foreign_key if foreign_key && model.respond_to?(:increment_counter) + foreign_key = counter_cache_target(reflection, model, foreign_key) model.increment_counter(cache_column, foreign_key) end if foreign_key_was && model_was.respond_to?(:decrement_counter) + foreign_key_was = counter_cache_target(reflection, model_was, foreign_key_was) model_was.decrement_counter(cache_column, foreign_key_was) end end end + + private + def counter_cache_target(reflection, model, foreign_key) + primary_key = reflection.association_primary_key(model) + model.unscoped.where!(primary_key => foreign_key) + end end end @@ -84,7 +92,8 @@ module ActiveRecord::Associations::Builder # :nodoc: else klass = association.klass end - old_record = klass.find_by(klass.primary_key => old_foreign_id) + primary_key = reflection.association_primary_key(klass) + old_record = klass.find_by(primary_key => old_foreign_id) if old_record if touch != true diff --git a/activerecord/lib/active_record/associations/builder/has_and_belongs_to_many.rb b/activerecord/lib/active_record/associations/builder/has_and_belongs_to_many.rb index 1981da11a2..e3070e0472 100644 --- a/activerecord/lib/active_record/associations/builder/has_and_belongs_to_many.rb +++ b/activerecord/lib/active_record/associations/builder/has_and_belongs_to_many.rb @@ -2,39 +2,6 @@ module ActiveRecord::Associations::Builder # :nodoc: class HasAndBelongsToMany # :nodoc: - class JoinTableResolver # :nodoc: - KnownTable = Struct.new :join_table - - class KnownClass # :nodoc: - def initialize(lhs_class, rhs_class_name) - @lhs_class = lhs_class - @rhs_class_name = rhs_class_name - @join_table = nil - end - - def join_table - @join_table ||= [@lhs_class.table_name, klass.table_name].sort.join("\0").gsub(/^(.*[._])(.+)\0\1(.+)/, '\1\2_\3').tr("\0", "_") - end - - private - - def klass - @lhs_class.send(:compute_type, @rhs_class_name) - end - end - - def self.build(lhs_class, name, options) - if options[:join_table] - KnownTable.new options[:join_table].to_s - else - class_name = options.fetch(:class_name) { - name.to_s.camelize.singularize - } - KnownClass.new lhs_class, class_name.to_s - end - end - end - attr_reader :lhs_model, :association_name, :options def initialize(association_name, lhs_model, options) @@ -44,8 +11,6 @@ module ActiveRecord::Associations::Builder # :nodoc: end def through_model - habtm = JoinTableResolver.build lhs_model, association_name, options - join_model = Class.new(ActiveRecord::Base) { class << self attr_accessor :left_model @@ -56,7 +21,9 @@ module ActiveRecord::Associations::Builder # :nodoc: end def self.table_name - table_name_resolver.join_table + # Table name needs to be resolved lazily + # because RHS class might not have been loaded + @table_name ||= table_name_resolver.call end def self.compute_type(class_name) @@ -86,7 +53,7 @@ module ActiveRecord::Associations::Builder # :nodoc: } join_model.name = "HABTM_#{association_name.to_s.camelize}" - join_model.table_name_resolver = habtm + join_model.table_name_resolver = -> { table_name } join_model.left_model = lhs_model join_model.add_left_association :left_side, anonymous_class: lhs_model @@ -117,6 +84,18 @@ module ActiveRecord::Associations::Builder # :nodoc: middle_options end + def table_name + if options[:join_table] + options[:join_table].to_s + else + class_name = options.fetch(:class_name) { + association_name.to_s.camelize.singularize + } + klass = lhs_model.send(:compute_type, class_name.to_s) + [lhs_model.table_name, klass.table_name].sort.join("\0").gsub(/^(.*[._])(.+)\0\1(.+)/, '\1\2_\3').tr("\0", "_") + end + end + def belongs_to_options(options) rhs_options = {} |