Check for existance of class_attribute setter

4b795307 · Prem Sichanugrist · 6fca437d · 4b795307
Commit 4b795307 authored Feb 17, 2012 by Prem Sichanugrist
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lib/paperclip.rb
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--- a/lib/paperclip.rb
+++ b/lib/paperclip.rb
@@ -324,7 +324,11 @@ module Paperclip
          write_inheritable_attribute(:attachment_definitions, {})
        end
      else
+        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)