change collation in query to adapt to charset

CHANGELOG.md

@@ -1,6 +1,13 @@
 Changelog
 =========
 
+1.3.0
+-----
+
+* Added auto-detection of binary collation for MySQL, so that not always utf8_bin is used.
+  A new `setCaseSensitiveEncoding` method has been introduced, which can be used to override
+  the auto detected value.
+
 1.2
 ---
 

src/Jackalope/Transport/DoctrineDBAL/Client.php

@@ -205,6 +205,11 @@ class Client extends BaseTransport implements QueryTransport, WritingInterface,
      */
     private $nodeProcessor;
 
+    /**
+     * @var string
+     */
+    private $caseSensitiveEncoding;
+
     /**
      * @param FactoryInterface $factory
      * @param Connection       $conn
@@ -439,6 +444,34 @@ public function setCheckLoginOnServer($bool)
         $this->checkLoginOnServer = $bool;
     }
 
+    /**
+     * This will control the collate which is being used on MySQL when querying nodes. It will be autodetected by just
+     * appending _bin to the current charset, which is good enough in most cases.
+     *
+     * @param string $encoding
+     */
+    public function setCaseSensitiveEncoding($encoding)
+    {
+        $this->caseSensitiveEncoding = $encoding;
+    }
+
+    /**
+     * Returns the collate which is being used on MySQL when querying nodes.
+     *
+     * @return string
+     */
+    private function getCaseSensitiveEncoding()
+    {
+        if (!$this->caseSensitiveEncoding) {
+            $params = $this->conn->getParams();
+            $charset = isset($params['charset']) ? $params['charset'] : 'utf8';
+
+            return $this->caseSensitiveEncoding = $charset === 'binary' ? $charset : $charset . '_bin';
+        }
+
+        return $this->caseSensitiveEncoding;
+    }
+
     protected function workspaceExists($workspaceName)
     {
         try {
@@ -1540,7 +1573,7 @@ private function getSystemIdForNode($identifier, $workspaceName = null)
             $query = 'SELECT id FROM phpcr_nodes WHERE identifier = ? AND workspace_name = ?';
         } else {
             if ($this->getConnection()->getDriver() instanceof \Doctrine\DBAL\Driver\PDOMySql\Driver) {
-                $query = 'SELECT id FROM phpcr_nodes WHERE path COLLATE utf8_bin = ? AND workspace_name = ?';
+                $query = 'SELECT id FROM phpcr_nodes WHERE path COLLATE ' . $this->getCaseSensitiveEncoding() .' = ? AND workspace_name = ?';
             } else {
                 $query = 'SELECT id FROM phpcr_nodes WHERE path = ? AND workspace_name = ?';
             }