diff options
Diffstat (limited to 'activemodel/lib/active_model/validations/exclusion.rb')
| -rw-r--r-- | activemodel/lib/active_model/validations/exclusion.rb | 73 |
1 files changed, 27 insertions, 46 deletions
diff --git a/activemodel/lib/active_model/validations/exclusion.rb b/activemodel/lib/active_model/validations/exclusion.rb index 644cc814a7..dc3368c569 100644 --- a/activemodel/lib/active_model/validations/exclusion.rb +++ b/activemodel/lib/active_model/validations/exclusion.rb @@ -1,66 +1,47 @@ -require 'active_support/core_ext/range' +require "active_model/validations/clusivity" module ActiveModel # == Active Model Exclusion Validator module Validations - class ExclusionValidator < EachValidator - ERROR_MESSAGE = "An object with the method #include? or a proc or lambda is required, " << - "and must be supplied as the :in option of the configuration hash" - - def check_validity! - unless [:include?, :call].any? { |method| options[:in].respond_to?(method) } - raise ArgumentError, ERROR_MESSAGE - end - end + class ExclusionValidator < EachValidator #:nodoc: + include Clusivity def validate_each(record, attribute, value) - delimiter = options[:in] - exclusions = delimiter.respond_to?(:call) ? delimiter.call(record) : delimiter - if exclusions.send(inclusion_method(exclusions), value) - record.errors.add(attribute, :exclusion, options.except(:in).merge!(:value => value)) + if include?(record, value) + record.errors.add(attribute, :exclusion, options.except(:in, :within).merge!(:value => value)) end end - - private - - # 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 that the value of the specified attribute is not in a particular enumerable object. + # Validates that the value of the specified attribute is not in a + # particular enumerable object. # # class Person < ActiveRecord::Base - # validates_exclusion_of :username, :in => %w( admin superuser ), :message => "You don't belong here" - # validates_exclusion_of :age, :in => 30..60, :message => "This site is only for under 30 and over 60" - # validates_exclusion_of :format, :in => %w( mov avi ), :message => "extension %{value} is not allowed" - # validates_exclusion_of :password, :in => lambda { |p| [p.username, p.first_name] }, :message => "should not be the same as your username or first name" + # validates_exclusion_of :username, in: %w( admin superuser ), message: "You don't belong here" + # validates_exclusion_of :age, in: 30..60, message: 'This site is only for under 30 and over 60' + # validates_exclusion_of :format, in: %w( mov avi ), message: "extension %{value} is not allowed" + # validates_exclusion_of :password, in: ->(person) { [person.username, person.first_name] }, + # message: 'should not be the same as your username or first name' # end # # Configuration options: - # * <tt>:in</tt> - An enumerable object of items that the value shouldn't be part of. - # 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>:message</tt> - Specifies a custom error message (default is: "is reserved"). - # * <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 + # * <tt>:in</tt> - An enumerable object of items that the value shouldn't + # be part of. 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>:within</tt> - A synonym(or alias) for <tt>:in</tt> + # <tt>Range#cover?</tt>, otherwise with <tt>include?</tt>. + # * <tt>:message</tt> - Specifies a custom error message (default is: "is + # reserved"). + # * <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+). + # + # There is also a list of default options supported by every validator: + # +:if+, +:unless+, +:on+ and +:strict+. + # See <tt>ActiveModel::Validation#validates</tt> for more information def validates_exclusion_of(*attr_names) validates_with ExclusionValidator, _merge_attributes(attr_names) end |