Implement ExceptionConverterDriver for drizzle_pdo_mysql

lib/Doctrine/DBAL/Driver/DrizzlePDOMySql/Driver.php

@@ -19,12 +19,15 @@
 
 namespace Doctrine\DBAL\Driver\DrizzlePDOMySql;
 
+use Doctrine\DBAL\Driver\ExceptionConverterDriver;
+use Doctrine\DBAL\DBALException;
+
 /**
  * Drizzle driver using PDO MySql.
  *
  * @author Kim Hemsø Rasmussen <kimhemsoe@gmail.com>
  */
-class Driver implements \Doctrine\DBAL\Driver
+class Driver implements \Doctrine\DBAL\Driver, ExceptionConverterDriver
 {
     /**
      * {@inheritdoc}
@@ -105,6 +108,40 @@ class Driver implements \Doctrine\DBAL\Driver
      */
     public function convertExceptionCode(\Exception $exception)
     {
+        if ($exception->getCode() === "42000") {
+            return DBALException::ERROR_SYNTAX;
+        }
+
+        if ($exception->getCode() === "42S02") {
+            return DBALException::ERROR_UNKNOWN_TABLE;
+        }
+
+        if ($exception->getCode() === "42S01") {
+            return DBALException::ERROR_TABLE_ALREADY_EXISTS;
+        }
+
+        if ($exception->getCode() === "42S22") {
+            return DBALException::ERROR_BAD_FIELD_NAME;
+        }
+
+        if ($exception->getCode() === "23000") {
+            if (strpos($exception->getMessage(), 'Duplicate entry') !== false) {
+                return DBALException::ERROR_DUPLICATE_KEY;
+            }
+
+            if (strpos($exception->getMessage(), 'Cannot delete or update a parent row: a foreign key constraint fails') !== false) {
+                return DBALException::ERROR_FOREIGN_KEY_CONSTRAINT;
+            }
+
+            if (strpos($exception->getMessage(), ' cannot be null')) {
+                return DBALException::ERROR_NOT_NULL;
+            }
+
+            if (strpos($exception->getMessage(), 'in field list is ambiguous') !== false) {
+                return DBALException::ERROR_NON_UNIQUE_FIELD_NAME;
+            }
+        }
+
         return 0;
     }
 }

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

@@ -217,6 +217,10 @@ class ExceptionTest extends \Doctrine\Tests\DbalFunctionalTestCase
             $this->markTestSkipped("Only skipped if platform is not sqlite");
         }
 
+        if ($this->_conn->getDatabasePlatform()->getName() == 'drizzle') {
+            $this->markTestSkipped("Drizzle does not always support authentication");
+        }
+
         if ($this->_conn->getDatabasePlatform()->getName() == 'postgresql' && isset($params['password'])) {
             $this->markTestSkipped("Does not work on Travis");
         }