Module: UrlEncrypt::InstanceMethods::ClassMethods

Defined in:
lib/url_encrypt.rb

Instance Method Summary collapse

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(method_id, *args) ⇒ Object 



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# File 'lib/url_encrypt.rb', line 68

def method_missing(method_id, *args)
  if match = /^find_(all_by|by)_encrypted_([_a-zA-Z]\w*)$/.match(method_id.to_s)          
    finder = determine_finder(match)
    attribute_names = extract_attribute_names_from_match(match)
    super unless all_attributes_exists?(attribute_names)

    self.class_eval %{
      def self.#{method_id}(*args)
        encrypted_str = args[0]
        raise(ActiveRecord::RecordNotFound) if encrypted_str.nil?
        decrypted_str = decrypt(encrypted_str)              
        
        args[0] = decrypted_str

        options = args.extract_options!
        attributes = construct_attributes_from_arguments([:#{attribute_names.join(',:')}], args)
        finder_options = { :conditions => attributes }
        validate_find_options(options)
        set_readonly_option!(options)

        if options[:conditions]
          with_scope(:find => finder_options) do
            ActiveSupport::Deprecation.silence { self.send(:#{finder}, options) }
          end
        else
          ActiveSupport::Deprecation.silence { self.send(:#{finder}, options.merge(finder_options)) }
        end
      end
    }, __FILE__, __LINE__
    self.send(method_id, *args)
  else
    super
  end
end