/**
* This processes the current stage of the restore
* @throws restore_ui_exception if the progress is wrong.
* @return bool
*/
public function process()
{
if ($this->progress >= self::PROGRESS_PROCESSED) {
throw new restore_ui_exception('restoreuialreadyprocessed');
}
$this->progress = self::PROGRESS_PROCESSED;
if (optional_param('previous', false, PARAM_BOOL) && $this->stage->get_stage() > self::STAGE_CONFIRM) {
$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->get_stage() == self::STAGE_PROCESS && optional_param('substage', false, PARAM_BOOL))) {
$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;
}
