[2.0] DDC-491 - Fix OCI8 Driver being broken

lib/Doctrine/DBAL/Driver/OCI8/OCI8Connection.php

@@ -53,7 +53,7 @@ class OCI8Connection implements \Doctrine\DBAL\Driver\Connection
         return $stmt;
     }
     
-    public function quote($input)
+    public function quote($input, $type=\PDO::PARAM_STR)
     {
         return is_numeric($input) ? $input : "'$input'";
     }

lib/Doctrine/DBAL/Driver/OCI8/OCI8Statement.php

@@ -132,14 +132,16 @@ class OCI8Statement implements \Doctrine\DBAL\Driver\Statement
     /**
      * {@inheritdoc}
      */
-    public function execute($params = array())
+    public function execute($params = null)
     {
-        $hasZeroIndex = isset($params[0]);
-        foreach ($params as $key => $val) {
-            if ($hasZeroIndex && is_numeric($key)) {
-                $this->bindValue($key + 1, $val);
-            } else {
-                $this->bindValue($key, $val);
+        if ($params) {
+            $hasZeroIndex = isset($params[0]);
+            foreach ($params as $key => $val) {
+                if ($hasZeroIndex && is_numeric($key)) {
+                    $this->bindValue($key + 1, $val);
+                } else {
+                    $this->bindValue($key, $val);
+                }
             }
         }