# File lib/paperclip/callbacks.rb, line 9 def define_paperclip_callbacks(*callbacks) define_callbacks *[callbacks, {:terminator => "result == false"}].flatten callbacks.each do |callback| eval " def before_#{callback}(*args, &blk) set_callback(:#{callback}, :before, *args, &blk) end def after_#{callback}(*args, &blk) set_callback(:#{callback}, :after, *args, &blk) end " end end