From 8c0d5e0d1cfcec4ae6618e4ae8286421ff0f92fa Mon Sep 17 00:00:00 2001
From: Yves Senn <yves.senn@gmail.com>
Date: Mon, 13 Jan 2014 11:25:58 +0100
Subject: doc proc/lambda arg on inclusion validation. Closes #13689. [ci skip]

---
 activemodel/lib/active_model/validations/inclusion.rb | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'activemodel/lib')

diff --git a/activemodel/lib/active_model/validations/inclusion.rb b/activemodel/lib/active_model/validations/inclusion.rb
index 24337614c5..b344095807 100644
--- a/activemodel/lib/active_model/validations/inclusion.rb
+++ b/activemodel/lib/active_model/validations/inclusion.rb
@@ -29,7 +29,8 @@ module ActiveModel
       # * <tt>:in</tt> - An enumerable object of available items. This can be
       #   supplied as a proc, lambda or symbol which returns an enumerable. If the
       #   enumerable is a numerical range the test is performed with <tt>Range#cover?</tt>,
-      #   otherwise with <tt>include?</tt>.
+      #   otherwise with <tt>include?</tt>. When using a proc or lambda the instance
+      #   under validation is passed as an argument.
       # * <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").
-- 
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