From 99816bf8cc452b1c64ea76d510306f00d22122fd Mon Sep 17 00:00:00 2001
From: Aaron Patterson <aaron.patterson@gmail.com>
Date: Mon, 13 Dec 2010 13:29:33 -0800
Subject: [PATCH] deprecating Arel::Table#primary_key

---
 History.txt       | 3 +++
 lib/arel/table.rb | 6 ++++++
 2 files changed, 9 insertions(+)

diff --git a/History.txt b/History.txt
index 6094c7f6ca..d16baa5b30 100644
--- a/History.txt
+++ b/History.txt
@@ -27,6 +27,9 @@
 
   * Arel::Nodes::And.new takes a single list instead of left and right.
 
+  * Arel::Table#primary_key is deprecated and will be removed in 3.0.0 with no
+  replacement.
+
 == 2.0.7 (unreleased)
 
 * Bug Fixes
diff --git a/lib/arel/table.rb b/lib/arel/table.rb
index ceb81705b3..a68705fedf 100644
--- a/lib/arel/table.rb
+++ b/lib/arel/table.rb
@@ -27,6 +27,12 @@ module Arel
     end
 
     def primary_key
+      if $VERBOSE
+        warn <<-eowarn
+primary_key (#{caller.first}) is deprecated and will be removed in ARel 3.0.0. Please
+switch to `compile_insert`
+        eowarn
+      end
       @primary_key ||= begin
         primary_key_name = @engine.connection.primary_key(name)
         # some tables might be without primary key