add_constraints

# File activerecord/lib/active_record/associations/disable_joins_association_scope.rb, line 33
        def add_constraints(reflection, key, join_ids, owner, ordered)
          scope = reflection.build_scope(reflection.aliased_table).where(key => join_ids)

          relation = reflection.klass.scope_for_association
          scope.merge!(
            relation.except(:select, :create_with, :includes, :preload, :eager_load, :joins, :left_outer_joins)
          )

          scope = reflection.constraints.inject(scope) do |memo, scope_chain_item|
            item = eval_scope(reflection, scope_chain_item, owner)
            scope.unscope!(*item.unscope_values)
            scope.where_clause += item.where_clause
            scope.order_values = item.order_values | scope.order_values
            scope
          end

          if scope.order_values.empty? && ordered
            split_scope = DisableJoinsAssociationRelation.create(scope.klass, key, join_ids)
            split_scope.where_clause += scope.where_clause
            split_scope
          else
            scope
          end
        end