/usr/lib/ruby/vendor_ruby/active_model/validations/inclusion.rb is in ruby-activemodel-3.2 3.2.16-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 | require 'active_support/core_ext/range'
module ActiveModel
# == Active Model Inclusion Validator
module Validations
class InclusionValidator < EachValidator
ERROR_MESSAGE = "An object with the method #include? or a proc or lambda is required, " <<
"and must be supplied as the :in (or :within) option of the configuration hash"
def check_validity!
unless [:include?, :call].any?{ |method| delimiter.respond_to?(method) }
raise ArgumentError, ERROR_MESSAGE
end
end
def validate_each(record, attribute, value)
exclusions = delimiter.respond_to?(:call) ? delimiter.call(record) : delimiter
unless exclusions.send(inclusion_method(exclusions), value)
record.errors.add(attribute, :inclusion, options.except(:in, :within).merge!(:value => value))
end
end
private
def delimiter
@delimiter ||= options[:in] || options[:within]
end
# In Ruby 1.9 <tt>Range#include?</tt> on non-numeric ranges checks all possible
# values in the range for equality, so it may be slow for large ranges. The new
# <tt>Range#cover?</tt> uses the previous logic of comparing a value with the
# range endpoints.
def inclusion_method(enumerable)
enumerable.is_a?(Range) ? :cover? : :include?
end
end
module HelperMethods
# Validates whether the value of the specified attribute is available in a
# particular enumerable object.
#
# class Person < ActiveRecord::Base
# validates_inclusion_of :gender, :in => %w( m f )
# validates_inclusion_of :age, :in => 0..99
# validates_inclusion_of :format, :in => %w( jpg gif png ), :message => "extension %{value} is not included in the list"
# validates_inclusion_of :states, :in => lambda{ |person| STATES[person.country] }
# end
#
# Configuration options:
# * <tt>:in</tt> - An enumerable object of available items. This can be
# supplied as a proc or lambda which returns an enumerable. If the enumerable
# is a range the test is performed with <tt>Range#cover?</tt>
# (backported in Active Support for 1.8), otherwise with <tt>include?</tt>.
# * <tt>:within</tt> - A synonym(or alias) for <tt>:in</tt>
# * <tt>:message</tt> - Specifies a custom error message (default is: "is not
# included in the list").
# * <tt>:allow_nil</tt> - If set to true, skips this validation if the attribute
# is +nil+ (default is +false+).
# * <tt>:allow_blank</tt> - If set to true, skips this validation if the
# attribute is blank (default is +false+).
# * <tt>:on</tt> - Specifies when this validation is active. Runs in all
# validation contexts by default (+nil+), other options are <tt>:create</tt>
# and <tt>:update</tt>.
# * <tt>:if</tt> - Specifies a method, proc or string to call to determine if
# the validation should occur (e.g. <tt>:if => :allow_validation</tt>, or
# <tt>:if => Proc.new { |user| user.signup_step > 2 }</tt>). The method, proc
# or string should return or evaluate to a true or false value.
# * <tt>:unless</tt> - Specifies a method, proc or string to call to determine
# if the validation should not occur (e.g. <tt>:unless => :skip_validation</tt>,
# or <tt>:unless => Proc.new { |user| user.signup_step <= 2 }</tt>). The method,
# proc or string should return or evaluate to a true or false value.
# * <tt>:strict</tt> - Specifies whether validation should be strict.
# See <tt>ActiveModel::Validation#validates!</tt> for more information.
def validates_inclusion_of(*attr_names)
validates_with InclusionValidator, _merge_attributes(attr_names)
end
end
end
end
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