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eric/inject_alias_method_chain.rb

Created May 2, 2012 03:58
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inject_alias_method_chain.rb
class Module
# Use this to replace a method in an alias_method_chain
def inject_alias_method_chain(target, method_to_replace, method_to_use)
method_instance_to_replace = instance_method(method_to_replace)
meths = (private_instance_methods | instance_methods).sort.grep(/^#{target}/)
found = meths.detect do |m|
m != method_to_replace.to_s && instance_method(m) == method_instance_to_replace
end
if found
alias_method found, method_to_use
end
end
end
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