diff -r 000000000000 -r 7f95f8617b0b vendor/doctrine-dbal/lib/Doctrine/DBAL/Schema/SchemaException.php
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/vendor/doctrine-dbal/lib/Doctrine/DBAL/Schema/SchemaException.php	Sat Sep 24 15:40:41 2011 +0200
@@ -0,0 +1,126 @@
+<?php
+
+namespace Doctrine\DBAL\Schema;
+
+class SchemaException extends \Doctrine\DBAL\DBALException
+{
+    const TABLE_DOESNT_EXIST = 10;
+    const TABLE_ALREADY_EXISTS = 20;
+    const COLUMN_DOESNT_EXIST = 30;
+    const COLUMN_ALREADY_EXISTS = 40;
+    const INDEX_DOESNT_EXIST = 50;
+    const INDEX_ALREADY_EXISTS = 60;
+    const SEQUENCE_DOENST_EXIST = 70;
+    const SEQUENCE_ALREADY_EXISTS = 80;
+    const INDEX_INVALID_NAME = 90;
+    const FOREIGNKEY_DOESNT_EXIST = 100;
+
+    /**
+     * @param string $tableName
+     * @return SchemaException
+     */
+    static public function tableDoesNotExist($tableName)
+    {
+        return new self("There is no table with name '".$tableName."' in the schema.", self::TABLE_DOESNT_EXIST);
+    }
+
+    /**
+     * @param string $indexName
+     * @return SchemaException
+     */
+    static public function indexNameInvalid($indexName)
+    {
+        return new self("Invalid index-name $indexName given, has to be [a-zA-Z0-9_]", self::INDEX_INVALID_NAME);
+    }
+
+    /**
+     * @param string $indexName
+     * @return SchemaException
+     */
+    static public function indexDoesNotExist($indexName, $table)
+    {
+        return new self("Index '$indexName' does not exist on table '$table'.", self::INDEX_DOESNT_EXIST);
+    }
+
+    /**
+     * @param string $indexName
+     * @return SchemaException
+     */
+    static public function indexAlreadyExists($indexName, $table)
+    {
+        return new self("An index with name '$indexName' was already defined on table '$table'.", self::INDEX_ALREADY_EXISTS);
+    }
+
+    /**
+     * @param string $columnName
+     * @return SchemaException
+     */
+    static public function columnDoesNotExist($columnName, $table)
+    {
+        return new self("There is no column with name '$columnName' on table '$table'.", self::COLUMN_DOESNT_EXIST);
+    }
+
+    /**
+     *
+     * @param  string $tableName
+     * @return SchemaException
+     */
+    static public function tableAlreadyExists($tableName)
+    {
+        return new self("The table with name '".$tableName."' already exists.", self::TABLE_ALREADY_EXISTS);
+    }
+
+    /**
+     *
+     * @param string $tableName
+     * @param string $columnName
+     * @return SchemaException
+     */
+    static public function columnAlreadyExists($tableName, $columnName)
+    {
+        return new self(
+            "The column '".$columnName."' on table '".$tableName."' already exists.", self::COLUMN_ALREADY_EXISTS
+        );
+    }
+
+    /**
+     * @param string $sequenceName
+     * @return SchemaException
+     */
+    static public function sequenceAlreadyExists($sequenceName)
+    {
+        return new self("The sequence '".$sequenceName."' already exists.", self::SEQUENCE_ALREADY_EXISTS);
+    }
+
+    /**
+     * @param string $sequenceName
+     * @return SchemaException
+     */
+    static public function sequenceDoesNotExist($sequenceName)
+    {
+        return new self("There exists no sequence with the name '".$sequenceName."'.", self::SEQUENCE_DOENST_EXIST);
+    }
+
+    /**
+     * @param  string $fkName
+     * @return SchemaException
+     */
+    static public function foreignKeyDoesNotExist($fkName, $table)
+    {
+        return new self("There exists no foreign key with the name '$fkName' on table '$table'.", self::FOREIGNKEY_DOESNT_EXIST);
+    }
+
+    static public function namedForeignKeyRequired(Table $localTable, ForeignKeyConstraint $foreignKey)
+    {
+        return new self(
+            "The performed schema operation on ".$localTable->getName()." requires a named foreign key, ".
+            "but the given foreign key from (".implode(", ", $foreignKey->getColumns()).") onto foreign table ".
+            "'".$foreignKey->getForeignTableName()."' (".implode(", ", $foreignKey->getForeignColumns()).") is currently ".
+            "unnamed."
+        );
+    }
+
+    static public function alterTableChangeNotSupported($changeName) {
+        return new self ("Alter table change not supported, given '$changeName'");
+    }
+}
\ No newline at end of file