From f296e117c6fb771091a292e4b6d08355801ca3c6 Mon Sep 17 00:00:00 2001
From: David Heinemeier Hansson <david@loudthinking.com>
Date: Thu, 16 Dec 2004 03:23:06 +0000
Subject: Added Base.validates_inclusion_of that validates whether the value of
the specified attribute is available in a particular enumerable object.
[what-a-day]
git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@179 5ecf4fe2-1ee6-0310-87b1-e25e094e27de
---
activerecord/CHANGELOG | 8 ++++++++
activerecord/lib/active_record/validations.rb | 23 +++++++++++++++++++++++
2 files changed, 31 insertions(+)
diff --git a/activerecord/CHANGELOG b/activerecord/CHANGELOG
index d80d3a7c86..e7399fb800 100644
--- a/activerecord/CHANGELOG
+++ b/activerecord/CHANGELOG
@@ -1,5 +1,13 @@
*CVS*
+* Added Base.validates_inclusion_of that validates whether the value of the specified attribute is available in a particular enumerable
+ object. [what-a-day]
+
+ class Person < ActiveRecord::Base
+ validates_inclusion_of :gender, :in=>%w( m f ), :message=>"woah! what are you then!??!!"
+ validates_inclusion_of :age, :in=>0..99
+ end
+
* Added acts_as_list that can decorates an existing class with methods like move_higher/lower, move_to_top/bottom. [Tobias Luetke] Example:
class TodoItem < ActiveRecord::Base
diff --git a/activerecord/lib/active_record/validations.rb b/activerecord/lib/active_record/validations.rb
index e683721c7a..544754eeb9 100755
--- a/activerecord/lib/active_record/validations.rb
+++ b/activerecord/lib/active_record/validations.rb
@@ -188,6 +188,28 @@ module ActiveRecord
class_eval(%(#{validation_method(configuration[:on])} %{errors.add("#{attr_name}", "#{configuration[:message]}") unless #{attr_name} and #{attr_name}.to_s.match(/#{configuration[:with]}/)}))
end
end
+
+ # 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 ), :message=>"woah! what are you then!??!!"
+ # validates_inclusion_of :age, :in=>0..99
+ # end
+ #
+ # Configuration options:
+ # ::in: An enumerable object of available items
+ # ::message: Specifieds a customer error message (default is: "is not included in the list")
+ def validates_inclusion_of(*attr_names)
+ configuration = { :message => ActiveRecord::Errors.default_error_messagess[:inclusion], :on => :save }
+ configuration.update(attr_names.pop) if attr_names.last.is_a?(Hash)
+ enum = configuration[:in]
+
+ raise(ArgumentError, "An object with the method include? is required must be supplied as the :in option of the configuration hash") unless enum.respond_to?("include?")
+
+ for attr_name in attr_names
+ class_eval(%(#{validation_method(configuration[:on])} %{errors.add("#{attr_name}", "#{configuration[:message]}") unless (#{enum.inspect}).include?(#{attr_name}) }))
+ end
+ end
private
def validation_method(on)
@@ -290,6 +312,7 @@ module ActiveRecord
end
@@default_error_messagess = {
+ :inclusion => "is not included in the list",
:invalid => "is invalid",
:confirmation => "doesn't match confirmation",
:accepted => "must be accepted",
--
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