added portable error codes to mysql driver exception

lib/Doctrine/Connection/Mysql/Exception.php

@@ -22,8 +22,60 @@ Doctrine::autoload('Doctrine_Connection_Exception');
 /**
  * Doctrine_Connection_Mysql_Exception
  *
- * @package     Doctrine ORM
- * @url         www.phpdoctrine.com
- * @license     LGPL
+ * @package     Doctrine
+ * @url         http://www.phpdoctrine.com
+ * @license     http://www.opensource.org/licenses/lgpl-license.php LGPL
+ * @author      Konsta Vesterinen
+ * @author      Lukas Smith <smith@pooteeweet.org> (PEAR MDB2 library)
+ * @since       1.0
+ * @version     $Id$
  */
-class Doctrine_Connection_Mysql_Exception extends Doctrine_Connection_Exception { }
+class Doctrine_Connection_Mysql_Exception extends Doctrine_Connection_Exception { 
+    /**
+     * @var array $errorRegexps         an array that is used for determining portable 
+     *                                  error code from a native database error code
+     */
+    protected static $errorCodeMap = array(
+                                      1004 => Doctrine_Db::ERR_CANNOT_CREATE,
+                                      1005 => Doctrine_Db::ERR_CANNOT_CREATE,
+                                      1006 => Doctrine_Db::ERR_CANNOT_CREATE,
+                                      1007 => Doctrine_Db::ERR_ALREADY_EXISTS,
+                                      1008 => Doctrine_Db::ERR_CANNOT_DROP,
+                                      1022 => Doctrine_Db::ERR_ALREADY_EXISTS,
+                                      1044 => Doctrine_Db::ERR_ACCESS_VIOLATION,
+                                      1046 => Doctrine_Db::ERR_NODBSELECTED,
+                                      1048 => Doctrine_Db::ERR_CONSTRAINT,
+                                      1049 => Doctrine_Db::ERR_NOSUCHDB,
+                                      1050 => Doctrine_Db::ERR_ALREADY_EXISTS,
+                                      1051 => Doctrine_Db::ERR_NOSUCHTABLE,
+                                      1054 => Doctrine_Db::ERR_NOSUCHFIELD,
+                                      1061 => Doctrine_Db::ERR_ALREADY_EXISTS,
+                                      1062 => Doctrine_Db::ERR_ALREADY_EXISTS,
+                                      1064 => Doctrine_Db::ERR_SYNTAX,
+                                      1091 => Doctrine_Db::ERR_NOT_FOUND,
+                                      1100 => Doctrine_Db::ERR_NOT_LOCKED,
+                                      1136 => Doctrine_Db::ERR_VALUE_COUNT_ON_ROW,
+                                      1142 => Doctrine_Db::ERR_ACCESS_VIOLATION,
+                                      1146 => Doctrine_Db::ERR_NOSUCHTABLE,
+                                      1216 => Doctrine_Db::ERR_CONSTRAINT,
+                                      1217 => Doctrine_Db::ERR_CONSTRAINT,
+                                      );
+    /**
+     * This method checks if native error code/message can be 
+     * converted into a portable code and then adds this 
+     * portable error code to errorInfo array and returns the modified array
+     *
+     * the portable error code is added at the end of array
+     *
+     * @param array $errorInfo      error info array
+     * @since 1.0
+     * @return array
+     */
+    public function processErrorInfo(array $errorInfo) {
+        $code = $errorInfo[1];
+        if(isset(self::$errorCodeMap[$code]))
+            $errorInfo[3] = self::$errorCodeMap[$code];
+            
+        return $errorInfo;
+    }
+}