Module: MapByMethod::InstanceMethods

Defined in:
lib/map_by_method.rb

Instance Method Summary collapse

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(method, *args, &block) ⇒ Object 



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# File 'lib/map_by_method.rb', line 11

def method_missing(method, *args, &block)
  method_missing_before_map_by_method(method, *args, &block)
rescue NoMethodError
  error = $!
  begin
    if (match = method.to_s.match(self.class.map_by_method_regex))
      iterator, callmethod = match[1], match[3]
      callmethods = callmethod.split('_and_')
      result = callmethods.collect do |callmethod|
        self.send(iterator) {|item| item.send callmethod}
      end
      return callmethods.length == 1 ?
        result.first :
        result.transpose
    end
    method_name = method.to_s
    @@support_singularize ||= method_name.methods.include? "singularize"
    return self.map {|item| item.send method_name.singularize.to_sym} if @@support_singularize
  rescue NoMethodError
    nil
  end
  raise error
end

Instance Method Details

#method_missing_before_map_by_method ⇒ Object 



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# File 'lib/map_by_method.rb', line 9

alias_method :method_missing_before_map_by_method, :method_missing

#respond_to?(method) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/map_by_method.rb', line 36

def respond_to?(method)
  return true if respond_to_before_map_by_method?(method)
  method.to_s.match(self.class.map_by_method_regex)
end

#respond_to_before_map_by_method? ⇒ Object 



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# File 'lib/map_by_method.rb', line 35

alias_method :"respond_to_before_map_by_method?", :"respond_to?"