From 29bffc3101790ad341012af803db28f9450e401c Mon Sep 17 00:00:00 2001
From: Mark Story <mark@mark-story.com>
Date: Mon, 6 May 2013 22:02:20 -0400
Subject: [PATCH] Add very basic primary key support.

Add basic single and multi column primary key support.
---
 lib/Cake/Database/Schema/MysqlSchema.php      | 12 +++++++--
 .../Database/Schema/MysqlSchemaTest.php       | 25 ++++++-------------
 2 files changed, 18 insertions(+), 19 deletions(-)

diff --git a/lib/Cake/Database/Schema/MysqlSchema.php b/lib/Cake/Database/Schema/MysqlSchema.php
index bf04c772238..8a42adf59bc 100644
--- a/lib/Cake/Database/Schema/MysqlSchema.php
+++ b/lib/Cake/Database/Schema/MysqlSchema.php
@@ -274,11 +274,19 @@ protected function _value($value) {
 /**
  * Generate the SQL fragment for a single index in MySQL
  *
+ * @param Cake\Database\Schema\Table $table The table object the column is in.
  * @param string $name The name of the column.
- * @param array $data The attributes for the column.
  * @return string SQL fragment.
  */
-	public function indexSql($name, $data) {
+	public function indexSql(Table $table, $name) {
+		$data = $table->index($name);
+		if ($data['type'] === Table::INDEX_PRIMARY) {
+			$columns = array_map(
+				[$this->_driver, 'quoteIdentifier'],
+				$data['columns']
+			);
+			return sprintf('PRIMARY KEY (%s)', implode(', ', $columns));
+		}
 	}
 
 }
diff --git a/lib/Cake/Test/TestCase/Database/Schema/MysqlSchemaTest.php b/lib/Cake/Test/TestCase/Database/Schema/MysqlSchemaTest.php
index 3c1c08fca59..268fd487611 100644
--- a/lib/Cake/Test/TestCase/Database/Schema/MysqlSchemaTest.php
+++ b/lib/Cake/Test/TestCase/Database/Schema/MysqlSchemaTest.php
@@ -368,7 +368,8 @@ public static function columnSqlProvider() {
  * @return void
  */
 	public function testColumnSql($name, $data, $expected) {
-		$schema = $this->_getMockedSchema();
+		$driver = $this->_getMockedDriver();
+		$schema = new MysqlSchema($driver);
 
 		$table = (new Table('articles'))->addColumn($name, $data);
 		$this->assertEquals($expected, $schema->columnSql($table, $name));
@@ -380,7 +381,8 @@ public function testColumnSql($name, $data, $expected) {
  * @return void
  */
 	public function testColumnSqlPrimaryKey() {
-		$schema = $this->_getMockedSchema();
+		$driver = $this->_getMockedDriver();
+		$schema = new MysqlSchema($driver);
 
 		$table = new Table('articles');
 		$table->addColumn('id', [
@@ -429,22 +431,11 @@ public function testCreateTableSql() {
 				'columns' => ['id']
 			]);
 
+		$driver = $this->_getMockedDriver();
 		$connection = $this->getMock('Cake\Database\Connection', array(), array(), '', false);
-		$driver = new \Cake\Database\Driver\Mysql();
-		$mock = $this->getMock('FakePdo', ['quote']);
-		$driver->connection($mock);
-
-		$dialect = new MysqlSchema($driver);
-
 		$connection->expects($this->any())->method('driver')
 			->will($this->returnValue($driver));
 
-		$mock->expects($this->any())
-			->method('quote')
-			->will($this->returnCallback(function ($value) {
-				return '"' . $value . '"';
-			}));
-
 		$result = $table->createTableSql($connection);
 		$expected = <<<SQL
 CREATE TABLE `posts` (
@@ -463,16 +454,16 @@ public function testCreateTableSql() {
  *
  * @return MysqlSchema
  */
-	protected function _getMockedSchema() {
+	protected function _getMockedDriver() {
 		$driver = new \Cake\Database\Driver\Mysql();
-		$mock = $this->getMock('FakePdo', ['quote']);
+		$mock = $this->getMock('FakePdo', ['quote', 'quoteIdentifier']);
 		$mock->expects($this->any())
 			->method('quote')
 			->will($this->returnCallback(function ($value) {
 				return '"' . $value . '"';
 			}));
 		$driver->connection($mock);
-		return new MysqlSchema($driver);
+		return $driver;
 	}
 
 }