public static function uninstall(array $existingData)
{
$instance = new static($existingData);
return $instance->down();
}
/**
* Revert the last migration
*
* @return void
*/
public static function rollback()
{
// first of all we have to filter only the already migrated versions
$available = static::available();
foreach ($available as $key => $migrations) {
foreach ($migrations as $time => $migration) {
if ($time > static::$config->get($key . '.revision', 0)) {
unset($available[$key][$time]);
}
}
}
$revisions = array();
foreach ($available as $key => $value) {
if (empty($value)) {
continue;
}
foreach ($value as $name => $path) {
$revisions[$name . '::' . $key] = $path;
}
}
// nothing to rollback?
if (empty($revisions)) {
if (\ClanCats::is_cli()) {
\CCCli::warning('nothing to rollback to.');
}
return false;
}
ksort($revisions);
end($revisions);
list($time, $key) = explode('::', key($revisions));
$migration = new static(array_pop($revisions));
// rollback the migration
$migration->down();
// get the lastet migration from the group
$others = \CCArr::get($key, $available);
ksort($others);
array_pop($others);
end($others);
// update the config
static::$config->set($key . '.revision', key($others));
static::$config->write();
return true;
}
