/**
* This processes the current stage of the backup
* @return bool
*/
public function process()
{
if ($this->progress >= self::PROGRESS_PROCESSED) {
throw new backup_ui_exception('backupuialreadyprocessed');
}
$this->progress = self::PROGRESS_PROCESSED;
if (optional_param('previous', false, PARAM_BOOL) && $this->stage->get_stage() > $this->get_first_stage_id()) {
$this->stage = $this->initialise_stage($this->stage->get_prev_stage(), $this->stage->get_params());
return false;
}
// Process the stage
$processoutcome = $this->stage->process();
if ($processoutcome !== false) {
$this->stage = $this->initialise_stage($this->stage->get_next_stage(), $this->stage->get_params());
}
// Process UI event after to check changes are valid
$this->controller->process_ui_event();
return $processoutcome;
}
