Check for existance of class_attribute setter

thoughtbot · Feb 17, 2012 · 4b79530 · 4b79530 · joshuaclayton · Feb 17, 2012
1 parent 6fca437
commit 4b79530
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/lib/paperclip.rb b/lib/paperclip.rb
@@ -324,7 +324,11 @@ def has_attached_file name, options = {}
           write_inheritable_attribute(:attachment_definitions, {})
         end
       else
-        self.attachment_definitions = self.attachment_definitions.dup
+        if respond_to?(:class_attribute)
+          self.attachment_definitions = self.attachment_definitions.dup
+        else
+          write_inheritable_attribute(:attachment_definitions, self.attachment_definitions.dup)
+        end
       end
 
       attachment_definitions[name] = Paperclip::AttachmentOptions.new(options)