diff options
Diffstat (limited to 'activerecord/lib/active_record/associations/association_scope.rb')
-rw-r--r-- | activerecord/lib/active_record/associations/association_scope.rb | 64 |
1 files changed, 46 insertions, 18 deletions
diff --git a/activerecord/lib/active_record/associations/association_scope.rb b/activerecord/lib/active_record/associations/association_scope.rb index 27fd9e35db..519d4d8651 100644 --- a/activerecord/lib/active_record/associations/association_scope.rb +++ b/activerecord/lib/active_record/associations/association_scope.rb @@ -1,12 +1,34 @@ module ActiveRecord module Associations class AssociationScope #:nodoc: - INSTANCE = new - def self.scope(association, connection) INSTANCE.scope association, connection end + class BindSubstitution + def initialize(block) + @block = block + end + + def bind_value(scope, column, value, alias_tracker) + substitute = alias_tracker.connection.substitute_at( + column, scope.bind_values.length) + scope.bind_values += [[column, @block.call(value)]] + substitute + end + end + + def self.create(&block) + block = block ? block : lambda { |val| val } + new BindSubstitution.new(block) + end + + def initialize(bind_substitution) + @bind_substitution = bind_substitution + end + + INSTANCE = create + def scope(association, connection) klass = association.klass reflection = association.reflection @@ -22,6 +44,23 @@ module ActiveRecord Arel::Nodes::InnerJoin end + def self.get_bind_values(owner, chain) + bvs = [] + chain.each_with_index do |reflection, i| + if reflection == chain.last + bvs << reflection.join_id_for(owner) + if reflection.type + bvs << owner.class.base_class.name + end + else + if reflection.type + bvs << chain[i + 1].klass.base_class.name + end + end + end + bvs + end + private def construct_tables(chain, klass, refl, alias_tracker) @@ -49,10 +88,7 @@ module ActiveRecord end def bind_value(scope, column, value, alias_tracker) - substitute = alias_tracker.connection.substitute_at( - column, scope.bind_values.length) - scope.bind_values += [[column, value]] - substitute + @bind_substitution.bind_value scope, column, value, alias_tracker end def bind(scope, table_name, column_name, value, tracker) @@ -69,18 +105,9 @@ module ActiveRecord chain.each_with_index do |reflection, i| table, foreign_table = tables.shift, tables.first - if reflection.source_macro == :belongs_to - if reflection.options[:polymorphic] - key = reflection.association_primary_key(assoc_klass) - else - key = reflection.association_primary_key - end - - foreign_key = reflection.foreign_key - else - key = reflection.foreign_key - foreign_key = reflection.active_record_primary_key - end + join_keys = reflection.join_keys(assoc_klass) + key = join_keys.key + foreign_key = join_keys.foreign_key if reflection == chain.last bind_val = bind scope, table.table_name, key.to_s, owner[foreign_key], tracker @@ -120,6 +147,7 @@ module ActiveRecord end scope.where_values += item.where_values + scope.bind_values += item.bind_values scope.order_values |= item.order_values end end |