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Contents
# frozen_string_literal: true
module ActiveModel
module Type
module Helpers # :nodoc: all
module Numeric
def serialize(value)
cast(value)
end
def cast(value)
value = \
case value
when true then 1
when false then 0
when ::String then value.presence
else value
end
super(value)
end
def changed?(old_value, _new_value, new_value_before_type_cast) # :nodoc:
super || number_to_non_number?(old_value, new_value_before_type_cast)
end
private
def number_to_non_number?(old_value, new_value_before_type_cast)
old_value != nil && non_numeric_string?(new_value_before_type_cast.to_s)
end
def non_numeric_string?(value)
# 'wibble'.to_i will give zero, we want to make sure
# that we aren't marking int zero to string zero as
# changed.
!NUMERIC_REGEX.match?(value)
end
NUMERIC_REGEX = /\A\s*[+-]?\d/
private_constant :NUMERIC_REGEX
end
end
end
end
Version data entries
22 entries across 22 versions & 1 rubygems