Active Model Float Type

Attribute type for floating point numeric values. It is registered under the :float key.

class BagOfCoffee
  include ActiveModel::Attributes

  attribute :weight, :float
end

bag = BagOfCoffee.new

bag.weight = "0.25"
bag.weight # => 0.25

bag.weight = ""
bag.weight # => nil

bag.weight = "NaN"
bag.weight # => Float::NAN

Values are cast using their to_f method, except for the following strings:

• Blank strings are cast to nil.

• "Infinity" is cast to Float::INFINITY.

• "-Infinity" is cast to -Float::INFINITY.

• "NaN" is cast to Float::NAN.