class ActiveModel::Type::Float

  • "NaN" is cast to Float::NAN.
    - "-Infinity" is cast to -Float::INFINITY.
    - "Infinity" is cast to Float::INFINITY.
    - Blank strings are cast to nil.
    strings:
    Values are cast using their to_f method, except for the following
    bag.weight # => Float::NAN
    bag.weight = “NaN”
    bag.weight # => nil
    bag.weight = “”
    bag.weight # => 0.25
    bag.weight = “0.25”
    bag = BagOfCoffee.new
    end
    attribute :weight, :float
    include ActiveModel::Attributes
    class BagOfCoffee
    the :float key.
    Attribute type for floating point numeric values. It is registered under
    = Active Model Float Type

def cast_value(value) 

def cast_value(value)
  case value
  when ::Float then value
  when "Infinity" then ::Float::INFINITY
  when "-Infinity" then -::Float::INFINITY
  when "NaN" then ::Float::NAN
  else value.to_f
  end
end

def type 

def type
  :float
end

def type_cast_for_schema(value) 

def type_cast_for_schema(value)
  return "::Float::NAN" if value.try(:nan?)
  case value
  when ::Float::INFINITY then "::Float::INFINITY"
  when -::Float::INFINITY then "-::Float::INFINITY"
  else super
  end
end