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Module: ActiveModel::Attributes::ClassMethods

Relationships & Source Files
Defined in: activemodel/lib/active_model/attributes.rb

Instance Method Summary

Instance Method Details

#attribute(name, type = Type::Value.new, **options)

[ GitHub ] 

  


# File 'activemodel/lib/active_model/attributes.rb', line 19



def attribute(name, type = Type::Value.new, **options)
  name = name.to_s
  if type.is_a?(Symbol)
    type = ActiveModel::Type.lookup(type, **options.except(:default))
  end
  self.attribute_types = attribute_types.merge(name => type)
  define_default_attribute(name, options.fetch(:default, NO_DEFAULT_PROVIDED), type)
  define_attribute_method(name)
end


  








  

    #attribute_names  
  



  

    

Returns an array of attribute names as strings



class Person
  include ActiveModel::Attributes

  attribute :name, :string
  attribute :age, :integer
end

Person.attribute_names
# => ["name", "age"]


  



  [ GitHub ]


  

  


# File 'activemodel/lib/active_model/attributes.rb', line 40



def attribute_names
  attribute_types.keys
end