/**
* Check if there are changes in the rubric and it is needed to ask user whether to
* mark the current grades for re-grading. User may confirm re-grading and continue,
* return to editing or cancel the changes
*
* @param gradingform_rubric_controller $controller
*/
public function need_confirm_regrading($controller)
{
$data = $this->get_data();
if (isset($data->rubric['regrade'])) {
// we have already displayed the confirmation on the previous step
return false;
}
if (!isset($data->saverubric) || !$data->saverubric) {
// we only need confirmation when button 'Save rubric' is pressed
return false;
}
if (!$controller->has_active_instances()) {
// nothing to re-grade, confirmation not needed
return false;
}
$changelevel = $controller->update_or_check_rubric($data);
if ($changelevel == 0) {
// no changes in the rubric, no confirmation needed
return false;
}
// freeze form elements and pass the values in hidden fields
// TODO MDL-29421 description_editor does not freeze the normal way, uncomment below when fixed
$form = $this->_form;
foreach (array('rubric', 'name') as $fieldname) {
$el =& $form->getElement($fieldname);
$el->freeze();
$el->setPersistantFreeze(true);
if ($fieldname == 'rubric') {
$el->add_regrade_confirmation($changelevel);
}
}
// replace button text 'saverubric' and unfreeze 'Back to edit' button
$this->findButton('saverubric')->setValue(get_string('continue'));
$el =& $this->findButton('editrubric');
$el->setValue(get_string('backtoediting', 'gradingform_rubric'));
$el->unfreeze();
return true;
}
