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Remove method if exists, avoid calling Array#first so many times.

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This commit is contained in:
Emilio Tagua
2010-09-28 16:31:21 -03:00
parent da8f9ca432
commit 4d6e178f88
1 changed files with 5 additions and 3 deletions
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8
actionpack/lib/action_dispatch/middleware/callbacks.rb
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@@ -19,9 +19,11 @@ module ActionDispatch
# replace the existing callback. Passing an identifier is a suggested
# practice if the code adding a preparation block may be reloaded.
def self.to_prepare(*args, &block)
if args.first.is_a?(Symbol) && block_given?
define_method :"__#{args.first}", &block
set_callback(:prepare, :"__#{args.first}")
first_arg = args.first
if first_arg.is_a?(Symbol) && block_given?
remove_method :"__#{first_arg}" if method_defined?(:"__#{first_arg}")
define_method :"__#{first_arg}", &block
set_callback(:prepare, :"__#{first_arg}")
else
set_callback(:prepare, *args, &block)
end