From 47aa63a7ed4e8500bd9e0d92ef79e0371dc395a6 Mon Sep 17 00:00:00 2001
From: Neeraj Singh <neerajdotname@gmail.com>
Date: Wed, 8 Sep 2010 06:14:42 -0400
Subject: [PATCH] Add method format for Arel::Predicates::Equality

[#5490 state:resolved]
---
 lib/arel/algebra/predicates.rb                     |    4 ++++
 .../engines/sql/unit/predicates/predicates_spec.rb |   13 +++++++++++++
 2 files changed, 17 insertions(+), 0 deletions(-)

diff --git a/lib/arel/algebra/predicates.rb b/lib/arel/algebra/predicates.rb
index 2426aae..54d2b0b 100644
--- a/lib/arel/algebra/predicates.rb
+++ b/lib/arel/algebra/predicates.rb
@@ -190,6 +190,10 @@ module Arel
       def predicate_sql
         operand2.equality_predicate_sql
       end
+
+      def format(operand)
+        operand1.format(operand)
+      end      
     end
 
     class Inequality < Equality
diff --git a/spec/engines/sql/unit/predicates/predicates_spec.rb b/spec/engines/sql/unit/predicates/predicates_spec.rb
index e6130cf..1686524 100644
--- a/spec/engines/sql/unit/predicates/predicates_spec.rb
+++ b/spec/engines/sql/unit/predicates/predicates_spec.rb
@@ -15,29 +15,42 @@ module Arel
         describe "#to_sql" do
           it "manufactures sql with an AND operation" do
             sql = @operand1.and(@operand2).to_sql
+            full_sql = @relation.where(@operand1.and(@operand2)).to_sql
 
             adapter_is :mysql do
               sql.should be_like(%Q{
                 (`users`.`id` = 1 AND `users`.`name` = 'name')
               })
+              full_sql.should be_like(%Q{
+                SELECT `users`.`id`, `users`.`name` FROM `users` WHERE `users`.`id` = 1 AND `users`.`name` = 'name'
+              })
             end
 
             adapter_is :sqlite3 do
               sql.should be_like(%Q{
                 ("users"."id" = 1 AND "users"."name" = 'name')
               })
+              full_sql.should be_like(%Q{
+                SELECT "users"."id", "users"."name" FROM "users" WHERE "users"."id" = 1 AND "users"."name" = 'name'
+              })
             end
 
             adapter_is :postgresql do
               sql.should be_like(%Q{
                 ("users"."id" = 1 AND "users"."name" = E'name')
               })
+              full_sql.should be_like(%Q{
+                SELECT "users"."id", "users"."name" FROM "users" WHERE "users"."id" = 1 AND "users"."name" = E'name'
+              })
             end
 
             adapter_is :oracle do
               sql.should be_like(%Q{
                 ("USERS"."ID" = 1 AND "USERS"."NAME" = 'name')
               })
+              full_sql.should be_like(%Q{
+                SELECT "users"."id", "users"."name" FROM "users" WHERE "users"."id" = 1 AND "users"."name" = 'name'
+              })
             end
           end
         end
-- 
1.7.2