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Contents
# frozen_string_literal: true
module ActiveModel
module Type
# == Active \Model \Type \Boolean
#
# A class that behaves like a boolean type, including rules for coercion of user input.
#
# === Coercion
# Values set from user input will first be coerced into the appropriate ruby type.
# Coercion behavior is roughly mapped to Ruby's boolean semantics.
#
# - "false", "f" , "0", +0+ or any other value in +FALSE_VALUES+ will be coerced to +false+
# - Empty strings are coerced to +nil+
# - All other values will be coerced to +true+
class Boolean < Value
FALSE_VALUES = [
false, 0,
"0", :"0",
"f", :f,
"F", :F,
"false", :false,
"FALSE", :FALSE,
"off", :off,
"OFF", :OFF,
].to_set.freeze
def type # :nodoc:
:boolean
end
def serialize(value) # :nodoc:
cast(value)
end
private
def cast_value(value)
if value == ""
nil
else
!FALSE_VALUES.include?(value)
end
end
end
end
end
Version data entries
31 entries across 31 versions & 4 rubygems