Replaced PDO::CASE_* constants

docs/en/reference/portability.rst

@@ -51,12 +51,16 @@ Using the following code block in your initialization will:
 .. code-block:: php
 
     <?php
+
+    use Doctrine\DBAL\ColumnCase;
+    use Doctrine\DBAL\Portability\Connection as PortableConnection;
+
     $params = array(
         // vendor specific configuration
         //...
-        'wrapperClass' => 'Doctrine\DBAL\Portability\Connection',
-        'portability' => \Doctrine\DBAL\Portability\Connection::PORTABILITY_ALL,
-        'fetch_case' => \PDO::CASE_LOWER,
+        'wrapperClass' => PortableConnection::class,
+        'portability'  => PortableConnection::PORTABILITY_ALL,
+        'fetch_case'   => PortableConnection::LOWER,
     );
 
 This sort of portability handling is pretty expensive because all the result
@@ -80,4 +84,4 @@ This functionality is only implemented with Doctrine 2.1 upwards.
 Doctrine ships with lists of keywords for every supported vendor. You
 can access a keyword list through the schema manager of the vendor you
 are currently using or just instantiating it from the ``Doctrine\DBAL\Platforms\Keywords``
-namespace.
\ No newline at end of file
+namespace.

lib/Doctrine/DBAL/Portability/Connection.php

@@ -20,6 +20,7 @@
 namespace Doctrine\DBAL\Portability;
 
 use Doctrine\DBAL\Cache\QueryCacheProfile;
+use Doctrine\DBAL\ColumnCase;
 
 /**
  * Portability wrapper for a Connection.
@@ -83,12 +84,13 @@ class Connection extends \Doctrine\DBAL\Connection
                 }
                 $this->portability = $params['portability'];
             }
+
             if (isset($params['fetch_case']) && $this->portability & self::PORTABILITY_FIX_CASE) {
                 if ($this->_conn instanceof \Doctrine\DBAL\Driver\PDOConnection) {
                     // make use of c-level support for case handling
                     $this->_conn->setAttribute(\PDO::ATTR_CASE, $params['fetch_case']);
                 } else {
-                    $this->case = ($params['fetch_case'] == \PDO::CASE_LOWER) ? CASE_LOWER : CASE_UPPER;
+                    $this->case = ($params['fetch_case'] == ColumnCase::LOWER) ? CASE_LOWER : CASE_UPPER;
                 }
             }
         }

tests/Doctrine/Tests/DBAL/Functional/PortabilityTest.php

@@ -2,6 +2,7 @@
 
 namespace Doctrine\Tests\DBAL\Functional;
 
+use Doctrine\DBAL\ColumnCase;
 use Doctrine\DBAL\Connection;
 use Doctrine\DBAL\DriverManager;
 use Doctrine\DBAL\FetchMode;
@@ -28,13 +29,17 @@ class PortabilityTest extends \Doctrine\Tests\DbalFunctionalTestCase
      * @param int $case
      * @return  Connection
      */
-    private function getPortableConnection($portabilityMode = \Doctrine\DBAL\Portability\Connection::PORTABILITY_ALL, $case = \PDO::CASE_LOWER)
-    {
+    private function getPortableConnection(
+        $portabilityMode = ConnectionPortability::PORTABILITY_ALL,
+        $case = ColumnCase::LOWER
+    ) {
         if (!$this->portableConnection) {
             $params = $this->_conn->getParams();
-            $params['wrapperClass'] = 'Doctrine\DBAL\Portability\Connection';
-            $params['portability'] = $portabilityMode;
-            $params['fetch_case'] = $case;
+
+            $params['wrapperClass'] = ConnectionPortability::class;
+            $params['portability']  = $portabilityMode;
+            $params['fetch_case']   = $case;
+
             $this->portableConnection = DriverManager::getConnection($params, $this->_conn->getConfiguration(), $this->_conn->getEventManager());
 
             try {