Module: Enumerative::HasEnumeration::ClassMethods

Defined in:
lib/enumerative/has_enumeration.rb

Instance Method Summary collapse

Instance Method Details

#has_enumeration(*attributes) ⇒ Object 



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# File 'lib/enumerative/has_enumeration.rb', line 11

def has_enumeration( *attributes )
  options = attributes.extract_options!
  class_name = if options[:from].try( :is_a?, Class )
                 options[:from].name
               else
                 options[:from]
               end
  if class_name && !class_name.constantize.include?( Enumeration )
    raise ArgumentError,
          ':from option should refer to a class that mixes in Enumeration'
  end

  attributes.each do |a|
    composed_of a, :allow_nil => true,
                   :class_name => class_name || a.to_s.classify,
                   :mapping => [a, 'key'],
                   :converter => :new

    validates_associated a, :allow_blank => true
  end
end