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-rw-r--r--activemodel/lib/active_model/validations/presence.rb28
1 files changed, 11 insertions, 17 deletions
diff --git a/activemodel/lib/active_model/validations/presence.rb b/activemodel/lib/active_model/validations/presence.rb
index 9a643a6f5c..f159e40858 100644
--- a/activemodel/lib/active_model/validations/presence.rb
+++ b/activemodel/lib/active_model/validations/presence.rb
@@ -1,17 +1,17 @@
-require 'active_support/core_ext/object/blank'
module ActiveModel
# == Active Model Presence Validator
module Validations
- class PresenceValidator < EachValidator
+ class PresenceValidator < EachValidator #:nodoc:
def validate(record)
record.errors.add_on_blank(attributes, options)
end
end
module HelperMethods
- # Validates that the specified attributes are not blank (as defined by Object#blank?). Happens by default on save. Example:
+ # Validates that the specified attributes are not blank (as defined by
+ # Object#blank?). Happens by default on save.
#
# class Person < ActiveRecord::Base
# validates_presence_of :first_name
@@ -19,25 +19,19 @@ module ActiveModel
#
# The first_name attribute must be in the object and it cannot be blank.
#
- # If you want to validate the presence of a boolean field (where the real values are true and false),
- # you will want to use <tt>validates_inclusion_of :field_name, :in => [true, false]</tt>.
+ # If you want to validate the presence of a boolean field (where the real
+ # values are +true+ and +false+), you will want to use
+ # <tt>validates_inclusion_of :field_name, in: [true, false]</tt>.
#
- # This is due to the way Object#blank? handles boolean values: <tt>false.blank? # => true</tt>.
+ # This is due to the way Object#blank? handles boolean values:
+ # <tt>false.blank? # => true</tt>.
#
# Configuration options:
# * <tt>:message</tt> - A custom error message (default is: "can't be blank").
- # * <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
#
+ # 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_presence_of(*attr_names)
validates_with PresenceValidator, _merge_attributes(attr_names)
end