[DBAL-407] Implement error detection on unknown table for mysql and sqlite

lib/Doctrine/DBAL/DBALException.php

@@ -22,6 +22,7 @@ namespace Doctrine\DBAL;
 class DBALException extends \Exception
 {
     const ERROR_DUPLICATE_KEY = 1;
+    const ERROR_UNKNOWN_TABLE = 2;
 
     /**
      * @param string $method

lib/Doctrine/DBAL/Driver/PDOMySql/Driver.php

@@ -118,6 +118,8 @@ class Driver implements \Doctrine\DBAL\Driver
         switch ($exception->getCode()) {
             case 23000:
                 return DBALException::ERROR_DUPLICATE_KEY;
+            case '42S02':
+                return DBALException::ERROR_UNKNOWN_TABLE;
         }
 
         return 0;

lib/Doctrine/DBAL/Driver/PDOSqlite/Driver.php

@@ -122,6 +122,10 @@ class Driver implements \Doctrine\DBAL\Driver
         switch ($exception->getCode()) {
             case 23000:
                 return DBALException::ERROR_DUPLICATE_KEY;
+            case 'HY000':
+                if (strpos($exception->getMessage(), 'no such table:') !== false) {
+                    return DBALException::ERROR_UNKNOWN_TABLE;
+                }
         }
 
         return 0;

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

@@ -23,5 +23,13 @@ class ExceptionTest extends \Doctrine\Tests\DbalFunctionalTestCase
         $this->setExpectedException('\Doctrine\DBAL\DBALException', null, DBALException::ERROR_DUPLICATE_KEY);
         $this->_conn->insert("duplicatekey_table", array('id' => 1));
     }
+
+    public function testUnknownTableException()
+    {
+        $sql = "SELECT * FROM unknown_table";
+
+        $this->setExpectedException('\Doctrine\DBAL\DBALException', null, DBALException::ERROR_UNKNOWN_TABLE);
+        $this->_conn->executeQuery($sql);
+    }
 }
  
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