diff options
-rw-r--r-- | activerecord/lib/active_record/base.rb | 4 | ||||
-rw-r--r-- | activerecord/lib/active_record/identity_map.rb | 10 | ||||
-rw-r--r-- | activerecord/test/cases/identity_map_test.rb | 35 |
3 files changed, 44 insertions, 5 deletions
diff --git a/activerecord/lib/active_record/base.rb b/activerecord/lib/active_record/base.rb index 6149865f80..78318b1be0 100644 --- a/activerecord/lib/active_record/base.rb +++ b/activerecord/lib/active_record/base.rb @@ -830,6 +830,10 @@ module ActiveRecord #:nodoc: @symbolized_base_class ||= base_class.to_s.to_sym end + def symbolized_sti_name + @symbolized_sti_name ||= sti_name.present? ? sti_name.to_sym : symbolized_base_class + end + # Returns the base AR subclass that this class descends from. If A # extends AR::Base, A.base_class will return A. If B descends from A # through some arbitrarily deep hierarchy, B.base_class will return A. diff --git a/activerecord/lib/active_record/identity_map.rb b/activerecord/lib/active_record/identity_map.rb index 9eb47ad99f..f88ead9ca0 100644 --- a/activerecord/lib/active_record/identity_map.rb +++ b/activerecord/lib/active_record/identity_map.rb @@ -49,7 +49,7 @@ module ActiveRecord end def get(klass, primary_key) - record = repository[klass.symbolized_base_class][primary_key] + record = repository[klass.symbolized_sti_name][primary_key] if record.is_a?(klass) ActiveSupport::Notifications.instrument("identity.active_record", @@ -64,15 +64,15 @@ module ActiveRecord end def add(record) - repository[record.class.symbolized_base_class][record.id] = record + repository[record.class.symbolized_sti_name][record.id] = record end def remove(record) - repository[record.class.symbolized_base_class].delete(record.id) + repository[record.class.symbolized_sti_name].delete(record.id) end - def remove_by_id(symbolized_base_class, id) - repository[symbolized_base_class].delete(id) + def remove_by_id(symbolized_sti_name, id) + repository[symbolized_sti_name].delete(id) end def clear diff --git a/activerecord/test/cases/identity_map_test.rb b/activerecord/test/cases/identity_map_test.rb index 649715fbb5..a0e16400d2 100644 --- a/activerecord/test/cases/identity_map_test.rb +++ b/activerecord/test/cases/identity_map_test.rb @@ -129,6 +129,41 @@ class IdentityMapTest < ActiveRecord::TestCase end ############################################################################## + # Tests checking if IM is functioning properly on classes with multiple # + # types of inheritance # + ############################################################################## + + def test_inherited_without_type_attribute_without_identity_map + ActiveRecord::IdentityMap.without do + p1 = DestructivePirate.create!(:catchphrase => "I'm not a regular Pirate") + p2 = Pirate.find(p1.id) + assert_not_same(p1, p2) + end + end + + def test_inherited_with_type_attribute_without_identity_map + ActiveRecord::IdentityMap.without do + c = comments(:sub_special_comment) + c1 = SubSpecialComment.find(c.id) + c2 = Comment.find(c.id) + assert_same(c1.class, c2.class) + end + end + + def test_inherited_without_type_attribute + p1 = DestructivePirate.create!(:catchphrase => "I'm not a regular Pirate") + p2 = Pirate.find(p1.id) + assert_not_same(p1, p2) + end + + def test_inherited_with_type_attribute + c = comments(:sub_special_comment) + c1 = SubSpecialComment.find(c.id) + c2 = Comment.find(c.id) + assert_same(c1, c2) + end + + ############################################################################## # Tests checking dirty attribute behaviour with IM # ############################################################################## |