Module: BaseEnumz

Defined in:
lib/enumz/base_enumz.rb

Constant Summary collapse

RESERVED_METHOD_NAMES =

list of ruby module method names that cannot be overridden i.e. overridding enum.class is too destructive

[:class, :object_id, :method_missing,
:instance_eval, :send, :should_not, :nil?,
:const_get, :const_missing, :inspect, :to_s]

Instance Attribute Summary collapse

Instance Method Summary collapse

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

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

create a method for each enum name



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# File 'lib/enumz/base_enumz.rb', line 28

def method_missing(meth, *args, &block)
  if data_elements[meth.to_s.to_sym]
    self.instance_eval <<-EVAL
      def #{meth}
        data_elements[:#{meth}]
      end
    EVAL

    __send__(meth, *args, &block)
  else
    super
  end
end

Instance Attribute Details

#data_elements ⇒ Object (readonly)

Returns the value of attribute data_elements.



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# File 'lib/enumz/base_enumz.rb', line 2

def data_elements
  @data_elements
end

#options ⇒ Object (readonly)

Returns the value of attribute options.



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# File 'lib/enumz/base_enumz.rb', line 2

def options
  @options
end

Instance Method Details

#[](value) ⇒ Object

return the corresponding enum name for a given value



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# File 'lib/enumz/base_enumz.rb', line 22

def [](value)
  @inverted_data_elements ||= data_elements.invert
  @inverted_data_elements[value]
end

#names ⇒ Object

return list of enum names



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# File 'lib/enumz/base_enumz.rb', line 12

def names
  @names ||= data_elements.keys
end

#values ⇒ Object

return list of enum values



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# File 'lib/enumz/base_enumz.rb', line 17

def values
  @values ||= data_elements.values
end