diff --git a/activerecord/CHANGELOG.md b/activerecord/CHANGELOG.md index 70549243a8..18d0a12e49 100644 --- a/activerecord/CHANGELOG.md +++ b/activerecord/CHANGELOG.md @@ -1,3 +1,19 @@ +* Fixed `where` for polymorphic associations when passed an array containing different types. + + Fixes #17011. + + Example: + + PriceEstimate.where(estimate_of: [Treasure.find(1), Car.find(2)]) + # => SELECT "price_estimates".* FROM "price_estimates" + WHERE (("price_estimates"."estimate_of_type" = 'Treasure' AND "price_estimates"."estimate_of_id" = 1) + OR ("price_estimates"."estimate_of_type" = 'Car' AND "price_estimates"."estimate_of_id" = 2)) + + *Philippe Huibonhoa* + + +* Rework `ActiveRecord::Relation#last` + * Fix a bug where using `t.foreign_key` twice with the same `to_table` within the same table definition would only create one foreign key. diff --git a/activerecord/lib/active_record/relation/predicate_builder.rb b/activerecord/lib/active_record/relation/predicate_builder.rb index 0f88791d92..953495a8b6 100644 --- a/activerecord/lib/active_record/relation/predicate_builder.rb +++ b/activerecord/lib/active_record/relation/predicate_builder.rb @@ -5,6 +5,7 @@ module ActiveRecord require 'active_record/relation/predicate_builder/base_handler' require 'active_record/relation/predicate_builder/basic_object_handler' require 'active_record/relation/predicate_builder/class_handler' + require 'active_record/relation/predicate_builder/polymorphic_array_handler' require 'active_record/relation/predicate_builder/range_handler' require 'active_record/relation/predicate_builder/relation_handler' @@ -22,6 +23,7 @@ module ActiveRecord register_handler(Relation, RelationHandler.new) register_handler(Array, ArrayHandler.new(self)) register_handler(AssociationQueryValue, AssociationQueryHandler.new(self)) + register_handler(PolymorphicArrayValue, PolymorphicArrayHandler.new(self)) end def build_from_hash(attributes) @@ -40,10 +42,7 @@ module ActiveRecord # # For polymorphic relationships, find the foreign key and type: # PriceEstimate.where(estimate_of: treasure) - if table.associated_with?(column) - value = AssociationQueryValue.new(table.associated_table(column), value) - end - + value = AssociationQueryHandler.value_for(table, column, value) if table.associated_with?(column) build(table.arel_attribute(column), value) end diff --git a/activerecord/lib/active_record/relation/predicate_builder/association_query_handler.rb b/activerecord/lib/active_record/relation/predicate_builder/association_query_handler.rb index e81be63cd3..d7fd878265 100644 --- a/activerecord/lib/active_record/relation/predicate_builder/association_query_handler.rb +++ b/activerecord/lib/active_record/relation/predicate_builder/association_query_handler.rb @@ -1,6 +1,16 @@ module ActiveRecord class PredicateBuilder class AssociationQueryHandler # :nodoc: + def self.value_for(table, column, value) + klass = if table.associated_table(column).polymorphic_association? && ::Array === value && value.first.is_a?(Base) + PolymorphicArrayValue + else + AssociationQueryValue + end + + klass.new(table.associated_table(column), value) + end + def initialize(predicate_builder) @predicate_builder = predicate_builder end diff --git a/activerecord/lib/active_record/relation/predicate_builder/polymorphic_array_handler.rb b/activerecord/lib/active_record/relation/predicate_builder/polymorphic_array_handler.rb new file mode 100644 index 0000000000..b6c6240343 --- /dev/null +++ b/activerecord/lib/active_record/relation/predicate_builder/polymorphic_array_handler.rb @@ -0,0 +1,57 @@ +module ActiveRecord + class PredicateBuilder + class PolymorphicArrayHandler # :nodoc: + def initialize(predicate_builder) + @predicate_builder = predicate_builder + end + + def call(attribute, value) + table = value.associated_table + queries = value.type_to_ids_mapping.map do |type, ids| + { table.association_foreign_type.to_s => type, table.association_foreign_key.to_s => ids } + end + + predicates = queries.map { |query| predicate_builder.build_from_hash(query) } + + if predicates.size > 1 + type_and_ids_predicates = predicates.map { |type_predicate, id_predicate| Arel::Nodes::Grouping.new(type_predicate.and(id_predicate)) } + type_and_ids_predicates.inject(&:or) + else + predicates.first + end + end + + protected + + attr_reader :predicate_builder + end + + class PolymorphicArrayValue # :nodoc: + attr_reader :associated_table, :values + + def initialize(associated_table, values) + @associated_table = associated_table + @values = values + end + + def type_to_ids_mapping + default_hash = Hash.new { |hsh, key| hsh[key] = [] } + values.each_with_object(default_hash) { |value, hash| hash[base_class(value).name] << convert_to_id(value) } + end + + private + + def primary_key(value) + associated_table.association_primary_key(base_class(value)) + end + + def base_class(value) + value.class.base_class + end + + def convert_to_id(value) + value._read_attribute(primary_key(value)) + end + end + end +end diff --git a/activerecord/test/cases/relation/where_test.rb b/activerecord/test/cases/relation/where_test.rb index bc6378b90e..56a2b5b8c6 100644 --- a/activerecord/test/cases/relation/where_test.rb +++ b/activerecord/test/cases/relation/where_test.rb @@ -2,6 +2,7 @@ require "cases/helper" require "models/author" require "models/binary" require "models/cake_designer" +require "models/car" require "models/chef" require "models/comment" require "models/edge" @@ -14,7 +15,7 @@ require "models/vertex" module ActiveRecord class WhereTest < ActiveRecord::TestCase - fixtures :posts, :edges, :authors, :binaries, :essays + fixtures :posts, :edges, :authors, :binaries, :essays, :cars, :treasures, :price_estimates def test_where_copies_bind_params author = authors(:david) @@ -114,6 +115,17 @@ module ActiveRecord assert_equal expected.to_sql, actual.to_sql end + def test_polymorphic_array_where_multiple_types + treasure_1 = treasures(:diamond) + treasure_2 = treasures(:sapphire) + car = cars(:honda) + + expected = [price_estimates(:diamond), price_estimates(:sapphire_1), price_estimates(:sapphire_2), price_estimates(:honda)].sort + actual = PriceEstimate.where(estimate_of: [treasure_1, treasure_2, car]).to_a.sort + + assert_equal expected, actual + end + def test_polymorphic_nested_relation_where expected = PriceEstimate.where(estimate_of_type: 'Treasure', estimate_of_id: Treasure.where(id: [1,2])) actual = PriceEstimate.where(estimate_of: Treasure.where(id: [1,2])) diff --git a/activerecord/test/fixtures/price_estimates.yml b/activerecord/test/fixtures/price_estimates.yml index 1149ab17a2..406d65a142 100644 --- a/activerecord/test/fixtures/price_estimates.yml +++ b/activerecord/test/fixtures/price_estimates.yml @@ -1,7 +1,16 @@ -saphire_1: +sapphire_1: price: 10 estimate_of: sapphire (Treasure) sapphire_2: price: 20 estimate_of: sapphire (Treasure) + +diamond: + price: 30 + estimate_of: diamond (Treasure) + +honda: + price: 40 + estimate_of_type: Car + estimate_of_id: 1 diff --git a/activerecord/test/models/car.rb b/activerecord/test/models/car.rb index 778c22b1f6..0f37e9a289 100644 --- a/activerecord/test/models/car.rb +++ b/activerecord/test/models/car.rb @@ -12,6 +12,8 @@ class Car < ActiveRecord::Base has_many :engines, :dependent => :destroy, inverse_of: :my_car has_many :wheels, :as => :wheelable, :dependent => :destroy + has_many :price_estimates, :as => :estimate_of + scope :incl_tyres, -> { includes(:tyres) } scope :incl_engines, -> { includes(:engines) }