Doctrine 2迁移如何使用sqlite db更改表？

Question

I'm having some issues with altering a table in the migrations of doctrine 2. Following code always throws the error: Operation 'Doctrine\DBAL\Platforms\AbstractPlatform::getAlterTableSQL' is not supported by platform.

This is strange as alter table is supported by sqlite.

public function up(Schema $schema)
{
    $user = $schema->getTable('user');
    $user->addColumn('resellerId', 'integer', array(
        'length'        => '10',
        'notnull'       => true,
        'unsigned'      => true,
    ));
}

Answer 1

Even though ALTER TABLE is "supported" by Sqlite, the set of allowed operations is minimal compared to most other databases (http://www.sqlite.org/lang_altertable.html), hence why it is considered as not supported by the Doctrine DBAL.