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-rw-r--r--activemodel/lib/active_model/attribute_methods.rb5
-rw-r--r--activemodel/test/cases/attribute_methods_test.rb20
2 files changed, 24 insertions, 1 deletions
diff --git a/activemodel/lib/active_model/attribute_methods.rb b/activemodel/lib/active_model/attribute_methods.rb
index aa35a2726e..26ee9c4315 100644
--- a/activemodel/lib/active_model/attribute_methods.rb
+++ b/activemodel/lib/active_model/attribute_methods.rb
@@ -1,3 +1,6 @@
+require 'active_support/core_ext/hash/keys'
+require 'active_support/core_ext/class/inheritable_attributes'
+
module ActiveModel
class MissingAttributeError < NoMethodError
end
@@ -219,7 +222,7 @@ module ActiveModel
end
def attribute_method_matchers #:nodoc:
- @@attribute_method_matchers ||= []
+ read_inheritable_attribute(:attribute_method_matchers) || write_inheritable_attribute(:attribute_method_matchers, [])
end
end
diff --git a/activemodel/test/cases/attribute_methods_test.rb b/activemodel/test/cases/attribute_methods_test.rb
new file mode 100644
index 0000000000..614c4a3645
--- /dev/null
+++ b/activemodel/test/cases/attribute_methods_test.rb
@@ -0,0 +1,20 @@
+require 'cases/helper'
+
+class ModelWithAttributes
+ include ActiveModel::AttributeMethods
+
+ attribute_method_suffix ''
+end
+
+class ModelWithAttributes2
+ include ActiveModel::AttributeMethods
+
+ attribute_method_suffix '_test'
+end
+
+class AttributeMethodsTest < ActiveModel::TestCase
+ test 'unrelated classes should not share attribute method matchers' do
+ assert_not_equal ModelWithAttributes.send(:attribute_method_matchers),
+ ModelWithAttributes2.send(:attribute_method_matchers)
+ end
+end