public static function beforeSchemaUpdate()
{
$table = strtolower(get_called_class());
$schema = Schema::get();
$schemadef = $schema->getTableDef($table);
// 2015-12-31 RSVPs refer to Happening by event_uri now, not event_id. Let's migrate!
if (isset($schemadef['fields']['event_uri'])) {
// We seem to have already migrated, good!
return;
}
// this is a "normal" upgrade from StatusNet for example
echo "\nFound old {$table} table, upgrading it to add 'event_uri' field...";
$schemadef['fields']['event_uri'] = array('type' => 'varchar', 'length' => 191, 'not null' => true, 'description' => 'Event URI');
$schema->ensureTable($table, $schemadef);
$rsvp = new RSVP();
$rsvp->find();
while ($rsvp->fetch()) {
$event = Happening::getKV('id', $rsvp->event_id);
if (!$event instanceof Happening) {
$rsvp->delete();
continue;
}
$orig = clone $rsvp;
$rsvp->event_uri = $event->uri;
$rsvp->updateWithKeys($orig);
}
print "DONE.\n";
print "Resuming core schema upgrade...";
}