Class: Module

Inherits:
Object
  • Object
show all
Defined in:
lib/fat_free_crm/core_ext/alias_method_chain.rb

Instance Method Summary collapse

Instance Method Details

#alias_method_chain(target, feature) {|aliased_target, punctuation| ... } ⇒ Object

Yields:

  • (aliased_target, punctuation) 


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# File 'lib/fat_free_crm/core_ext/alias_method_chain.rb', line 4

def alias_method_chain(target, feature)
  # Strip out punctuation on predicates, bang or writer methods since
  # e.g. target?_without_feature is not a valid method name.
  aliased_target = target.to_s.sub(/([?!=])$/, '')
  punctuation = Regexp.last_match(1)
  yield(aliased_target, punctuation) if block_given?

  with_method = "#{aliased_target}_with_#{feature}#{punctuation}"
  without_method = "#{aliased_target}_without_#{feature}#{punctuation}"

  alias_method without_method, target
  alias_method target, with_method

  if public_method_defined?(without_method)
    public target
  elsif protected_method_defined?(without_method)
    protected target
  elsif private_method_defined?(without_method)
    private target
  end
end