From fba18f19948f084023fd8744025f57da00163265 Mon Sep 17 00:00:00 2001
From: Ben Woosley <ben.woosley@gmail.com>
Date: Fri, 10 May 2013 17:41:29 +0200
Subject: Extract JoinDependency#join_relation to DRY the repeated application
 of the #join_associations.

---
 activerecord/lib/active_record/associations/join_dependency.rb | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'activerecord/lib/active_record/associations')

diff --git a/activerecord/lib/active_record/associations/join_dependency.rb b/activerecord/lib/active_record/associations/join_dependency.rb
index 28e081c03c..5b2f2d1902 100644
--- a/activerecord/lib/active_record/associations/join_dependency.rb
+++ b/activerecord/lib/active_record/associations/join_dependency.rb
@@ -55,6 +55,13 @@ module ActiveRecord
         join_parts.first
       end
 
+      def join_relation(relation)
+        join_associations.each do |association|
+          relation = association.join_relation(relation)
+        end
+        relation
+      end
+
       def columns
         join_parts.collect { |join_part|
           table = join_part.aliased_table
-- 
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