From c27badbfffd6d756ad5eb43bfecb6bc072ea288c Mon Sep 17 00:00:00 2001
From: vlakoff <vlakoff@gmail.com>
Date: Sat, 5 Nov 2016 10:32:14 +0100
Subject: [PATCH] Fix wrapping and escaping in SQL Server dropIfExists()

* Support table prefix
* Escape single quotes
---
 .../Schema/Grammars/SqlServerGrammar.php      |  4 ++-
 .../DatabaseSqlServerSchemaGrammarTest.php    | 33 +++++++++++++++++++
 2 files changed, 36 insertions(+), 1 deletion(-)

diff --git a/src/Illuminate/Database/Schema/Grammars/SqlServerGrammar.php b/src/Illuminate/Database/Schema/Grammars/SqlServerGrammar.php
index 8976944baeb6..d2e9d9282033 100755
--- a/src/Illuminate/Database/Schema/Grammars/SqlServerGrammar.php
+++ b/src/Illuminate/Database/Schema/Grammars/SqlServerGrammar.php
@@ -149,7 +149,9 @@ public function compileDrop(Blueprint $blueprint, Fluent $command)
      */
     public function compileDropIfExists(Blueprint $blueprint, Fluent $command)
     {
-        return 'if exists (select * from INFORMATION_SCHEMA.TABLES where TABLE_NAME = \''.$blueprint->getTable().'\') drop table ['.$blueprint->getTable().']';
+        $table = "'".str_replace("'", "''", $this->getTablePrefix().$blueprint->getTable())."'";
+
+        return 'if exists (select * from INFORMATION_SCHEMA.TABLES where TABLE_NAME = '.$table.') drop table '.$this->wrapTable($blueprint);
     }
 
     /**
diff --git a/tests/Database/DatabaseSqlServerSchemaGrammarTest.php b/tests/Database/DatabaseSqlServerSchemaGrammarTest.php
index 33f559205542..f6e9732fefbe 100755
--- a/tests/Database/DatabaseSqlServerSchemaGrammarTest.php
+++ b/tests/Database/DatabaseSqlServerSchemaGrammarTest.php
@@ -28,6 +28,15 @@ public function testBasicCreateTable()
 
         $this->assertEquals(1, count($statements));
         $this->assertEquals('alter table "users" add "id" int identity primary key not null, "email" nvarchar(255) not null', $statements[0]);
+
+        $blueprint = new Blueprint('users');
+        $blueprint->create();
+        $blueprint->increments('id');
+        $blueprint->string('email');
+        $statements = $blueprint->toSql($this->getConnection(), $this->getGrammar()->setTablePrefix('prefix_'));
+
+        $this->assertEquals(1, count($statements));
+        $this->assertEquals('create table "prefix_users" ("id" int identity primary key not null, "email" nvarchar(255) not null)', $statements[0]);
     }
 
     public function testDropTable()
@@ -38,6 +47,30 @@ public function testDropTable()
 
         $this->assertEquals(1, count($statements));
         $this->assertEquals('drop table "users"', $statements[0]);
+
+        $blueprint = new Blueprint('users');
+        $blueprint->drop();
+        $statements = $blueprint->toSql($this->getConnection(), $this->getGrammar()->setTablePrefix('prefix_'));
+
+        $this->assertEquals(1, count($statements));
+        $this->assertEquals('drop table "prefix_users"', $statements[0]);
+    }
+
+    public function testDropTableIfExists()
+    {
+        $blueprint = new Blueprint('users');
+        $blueprint->dropIfExists();
+        $statements = $blueprint->toSql($this->getConnection(), $this->getGrammar());
+
+        $this->assertEquals(1, count($statements));
+        $this->assertEquals('if exists (select * from INFORMATION_SCHEMA.TABLES where TABLE_NAME = \'users\') drop table "users"', $statements[0]);
+
+        $blueprint = new Blueprint('users');
+        $blueprint->dropIfExists();
+        $statements = $blueprint->toSql($this->getConnection(), $this->getGrammar()->setTablePrefix('prefix_'));
+
+        $this->assertEquals(1, count($statements));
+        $this->assertEquals('if exists (select * from INFORMATION_SCHEMA.TABLES where TABLE_NAME = \'prefix_users\') drop table "prefix_users"', $statements[0]);
     }
 
     public function testDropColumn()