From c0396833cd826483f1b6c957d2b1a8f0b80056ec Mon Sep 17 00:00:00 2001
From: Jon Leighton <j@jonathanleighton.com>
Date: Fri, 4 Nov 2011 16:55:40 +0000
Subject: Add SelectManager#distinct to set/unset the Arel::Nodes::Distinct.new
 quantifier

---
 lib/arel/select_manager.rb | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'lib/arel/select_manager.rb')

diff --git a/lib/arel/select_manager.rb b/lib/arel/select_manager.rb
index 7a1fbbe438..ce8a9caf23 100644
--- a/lib/arel/select_manager.rb
+++ b/lib/arel/select_manager.rb
@@ -139,6 +139,14 @@ module Arel
       @ctx.projections = projections
     end
 
+    def distinct(value = true)
+      if value
+        @ctx.set_quantifier = Arel::Nodes::Distinct.new
+      else
+        @ctx.set_quantifier = nil
+      end
+    end
+
     def order *expr
       # FIXME: We SHOULD NOT be converting these to SqlLiteral automatically
       @ast.orders.concat expr.map { |x|
-- 
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