Skip to content
This repository
tree: 51b055b6d1
Fetching contributors…

Cannot retrieve contributors at this time

file 57 lines (53 sloc) 2.828 kb
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
require "active_model/validations/clusivity"

module ActiveModel

  # == Active Model Inclusion Validator
  module Validations
    class InclusionValidator < EachValidator #:nodoc:
      include Clusivity

      def validate_each(record, attribute, value)
        unless include?(record, value)
          record.errors.add(attribute, :inclusion, options.except(:in).merge!(:value => value))
        end
      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>, otherwise with
      # <tt>include?</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
Something went wrong with that request. Please try again.