Methods

Instance Public methods

attribute(name, cast_type = nil, default: NO_DEFAULT_PROVIDED, **options)

📝 Source code 
# File activemodel/lib/active_model/attributes.rb, line 19
      def attribute(name, cast_type = nil, default: NO_DEFAULT_PROVIDED, **options)
        name = name.to_s

        cast_type = Type.lookup(cast_type, **options) if Symbol === cast_type
        cast_type ||= attribute_types[name]

        self.attribute_types = attribute_types.merge(name => cast_type)
        define_default_attribute(name, default, cast_type)
        define_attribute_method(name)
      end
🔎 See on GitHub

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"]
📝 Source code 
# File activemodel/lib/active_model/attributes.rb, line 41
      def attribute_names
        attribute_types.keys
      end
🔎 See on GitHub