diff options
Diffstat (limited to 'activerecord/lib')
4 files changed, 29 insertions, 25 deletions
diff --git a/activerecord/lib/active_record/associations/join_dependency/join_association.rb b/activerecord/lib/active_record/associations/join_dependency/join_association.rb index 4583d89cba..ca0305abbb 100644 --- a/activerecord/lib/active_record/associations/join_dependency/join_association.rb +++ b/activerecord/lib/active_record/associations/join_dependency/join_association.rb @@ -1,6 +1,7 @@ # frozen_string_literal: true require "active_record/associations/join_dependency/join_part" +require "active_support/core_ext/array/extract" module ActiveRecord module Associations @@ -30,17 +31,21 @@ module ActiveRecord table = tables[-i] klass = reflection.klass - constraint = reflection.build_join_constraint(table, foreign_table) + join_scope = reflection.join_scope(table, foreign_table, foreign_klass) - joins << table.create_join(table, table.create_on(constraint), join_type) - - join_scope = reflection.join_scope(table, foreign_klass) arel = join_scope.arel(alias_tracker.aliases) + nodes = arel.constraints.first + + others = nodes.children.extract! do |node| + Arel.fetch_attribute(node) { |attr| attr.relation.name != table.name } + end + + joins << table.create_join(table, table.create_on(nodes), join_type) - if arel.constraints.any? + unless others.empty? joins.concat arel.join_sources right = joins.last.right - right.expr = right.expr.and(arel.constraints) + right.expr.children.concat(others) end # The current table in this iteration becomes the foreign table in the next diff --git a/activerecord/lib/active_record/reflection.rb b/activerecord/lib/active_record/reflection.rb index 6d2f75a3ae..3452cf971b 100644 --- a/activerecord/lib/active_record/reflection.rb +++ b/activerecord/lib/active_record/reflection.rb @@ -178,28 +178,24 @@ module ActiveRecord scope ? [scope] : [] end - def build_join_constraint(table, foreign_table) - key = join_keys.key - foreign_key = join_keys.foreign_key - - constraint = table[key].eq(foreign_table[foreign_key]) - - if klass.finder_needs_type_condition? - table.create_and([constraint, klass.send(:type_condition, table)]) - else - constraint - end - end - - def join_scope(table, foreign_klass) + def join_scope(table, foreign_table, foreign_klass) predicate_builder = predicate_builder(table) scope_chain_items = join_scopes(table, predicate_builder) klass_scope = klass_join_scope(table, predicate_builder) + key = join_keys.key + foreign_key = join_keys.foreign_key + + klass_scope.where!(table[key].eq(foreign_table[foreign_key])) + if type klass_scope.where!(type => foreign_klass.polymorphic_name) end + if klass.finder_needs_type_condition? + klass_scope.where!(klass.send(:type_condition, table)) + end + scope_chain_items.inject(klass_scope, &:merge!) end diff --git a/activerecord/lib/active_record/relation/where_clause.rb b/activerecord/lib/active_record/relation/where_clause.rb index e225628bae..47728aac30 100644 --- a/activerecord/lib/active_record/relation/where_clause.rb +++ b/activerecord/lib/active_record/relation/where_clause.rb @@ -140,11 +140,7 @@ module ActiveRecord def except_predicates(columns) predicates.reject do |node| - case node - when Arel::Nodes::Between, Arel::Nodes::In, Arel::Nodes::NotIn, Arel::Nodes::Equality, Arel::Nodes::NotEqual, Arel::Nodes::LessThan, Arel::Nodes::LessThanOrEqual, Arel::Nodes::GreaterThan, Arel::Nodes::GreaterThanOrEqual - subrelation = (node.left.kind_of?(Arel::Attributes::Attribute) ? node.left : node.right) - columns.include?(subrelation.name.to_s) - end + Arel.fetch_attribute(node) { |attr| columns.include?(attr.name.to_s) } end end diff --git a/activerecord/lib/arel.rb b/activerecord/lib/arel.rb index 7411b5c41b..361cd915cc 100644 --- a/activerecord/lib/arel.rb +++ b/activerecord/lib/arel.rb @@ -39,6 +39,13 @@ module Arel # :nodoc: all value.is_a?(Arel::Node) || value.is_a?(Arel::Attribute) || value.is_a?(Arel::Nodes::SqlLiteral) end + def self.fetch_attribute(value) + case value + when Arel::Nodes::Between, Arel::Nodes::In, Arel::Nodes::NotIn, Arel::Nodes::Equality, Arel::Nodes::NotEqual, Arel::Nodes::LessThan, Arel::Nodes::LessThanOrEqual, Arel::Nodes::GreaterThan, Arel::Nodes::GreaterThanOrEqual + yield value.left.is_a?(Arel::Attributes::Attribute) ? value.left : value.right + end + end + ## Convenience Alias Node = Arel::Nodes::Node end |