/**
* Change the sort order of an override
*
* @param int $id of the override
* @param string $move direction of move
* @param int $assignid of the assignment
* @return bool success of operation
*/
function move_group_override($id, $move, $assignid) {
global $DB;
// Get the override object.
if (!$override = $DB->get_record('assign_overrides', array('id' => $id), 'id, sortorder')) {
return false;
}
// Count the number of group overrides.
$overridecountgroup = $DB->count_records('assign_overrides', array('userid' => null, 'assignid' => $assignid));
// Calculate the new sortorder.
if ( ($move == 'up') and ($override->sortorder > 1)) {
$neworder = $override->sortorder - 1;
} else if (($move == 'down') and ($override->sortorder < $overridecountgroup)) {
$neworder = $override->sortorder + 1;
} else {
return false;
}
// Retrieve the override object that is currently residing in the new position.
$params = array('sortorder' => $neworder, 'assignid' => $assignid);
if ($swapoverride = $DB->get_record('assign_overrides', $params, 'id, sortorder')) {
// Swap the sortorders.
$swapoverride->sortorder = $override->sortorder;
$override->sortorder = $neworder;
// Update the override records.
$DB->update_record('assign_overrides', $override);
$DB->update_record('assign_overrides', $swapoverride);
}
reorder_group_overrides($assignid);
return true;
}
$course = $DB->get_record('course', array('id' => $cm->course), '*', MUST_EXIST);
$context = context_module::instance($cm->id);
require_login($course, false, $cm);
// Check the user has the required capabilities to modify an override.
require_capability('mod/assign:manageoverrides', $context);
$url = new moodle_url('/mod/assign/overridedelete.php', array('id' => $override->id));
$confirmurl = new moodle_url($url, array('id' => $override->id, 'confirm' => 1));
$cancelurl = new moodle_url('/mod/assign/overrides.php', array('cmid' => $cm->id));
if (!empty($override->userid)) {
$cancelurl->param('mode', 'user');
}
// If confirm is set (PARAM_BOOL) then we have confirmation of intention to delete.
if ($confirm) {
require_sesskey();
$assign->delete_override($override->id);
reorder_group_overrides($assign->get_context()->id);
redirect($cancelurl);
}
// Prepare the page to show the confirmation form.
$stroverride = get_string('override', 'assign');
$title = get_string('deletecheck', null, $stroverride);
$PAGE->set_url($url);
$PAGE->set_pagelayout('admin');
$PAGE->navbar->add($title);
$PAGE->set_title($title);
$PAGE->set_heading($course->fullname);
echo $OUTPUT->header();
echo $OUTPUT->heading(format_string($assign->get_context()->name, true, array('context' => $context)));
if ($override->groupid) {
$group = $DB->get_record('groups', array('id' => $override->groupid), 'id, name');
$confirmstr = get_string("overridedeletegroupsure", "assign", $group->name);