From 51730792ca930a896361eb92354a42bc56903de1 Mon Sep 17 00:00:00 2001
From: Pratik Naik <pratiknaik@gmail.com>
Date: Wed, 19 Nov 2008 19:36:42 +0530
Subject: Added Object#try. ( Taken from http://ozmm.org/posts/try.html )
 [Chris Wanstrath]

---
 activesupport/lib/active_support/core_ext/object/misc.rb | 13 +++++++++++++
 1 file changed, 13 insertions(+)

(limited to 'activesupport/lib/active_support')

diff --git a/activesupport/lib/active_support/core_ext/object/misc.rb b/activesupport/lib/active_support/core_ext/object/misc.rb
index cd0a04d32a..50f824c358 100644
--- a/activesupport/lib/active_support/core_ext/object/misc.rb
+++ b/activesupport/lib/active_support/core_ext/object/misc.rb
@@ -71,4 +71,17 @@ class Object
   def acts_like?(duck)
     respond_to? "acts_like_#{duck}?"
   end
+
+  # Tries to send the method only if object responds to it. Return +nil+ otherwise.
+  # 
+  # ==== Example :
+  # 
+  # # Without try
+  # @person ? @person.name : nil
+  # 
+  # With try
+  # @person.try(:name)
+  def try(method)
+    send(method) if respond_to?(method, true)
+  end
 end
-- 
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