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view_action.php
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<?php
// This file is part of mod_organizer for Moodle - http://moodle.org/
//
// It is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// It is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
/**
* view_action.php
*
* @package mod_organizer
* @author Andreas Hruska (andreas.hruska@tuwien.ac.at)
* @author Katarzyna Potocka (katarzyna.potocka@tuwien.ac.at)
* @author Andreas Windbichler
* @author Ivan Šakić
* @copyright 2014 Academic Moodle Cooperation {@link http://www.academic-moodle-cooperation.org}
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
define('ORGANIZER_ACTION_REGISTER', 'register');
define('ORGANIZER_ACTION_UNREGISTER', 'unregister');
define('ORGANIZER_ACTION_REREGISTER', 'reregister');
define('ORGANIZER_ACTION_COMMENT', 'comment');
define('ORGANIZER_ACTION_QUEUE', 'queue');
define('ORGANIZER_ACTION_UNQUEUE', 'unqueue');
require_once(dirname(dirname(dirname(__FILE__))) . '/config.php');
require_once(dirname(__FILE__) . '/view_lib.php');
require_once(dirname(__FILE__) . '/view_action_form_comment.php');
require_once(dirname(__FILE__) . '/view_action_form_print.php');
require_once(dirname(__FILE__) . '/messaging.php');
require_once($CFG->dirroot . '/mod/organizer/classes/event/queue_added.php');
require_once($CFG->dirroot . '/mod/organizer/classes/event/queue_removed.php');
list($cm, $course, $organizer, $context) = organizer_get_course_module_data();
require_login($course, false, $cm);
require_sesskey();
$mode = optional_param('mode', null, PARAM_INT);
$action = optional_param('action', null, PARAM_ALPHA);
$bulkaction = optional_param('bulkaction', null, PARAM_ALPHA);
$user = optional_param('user', null, PARAM_INT);
$slot = optional_param('slot', null, PARAM_INT);
$slots = organizer_get_param_slots();
$app = optional_param('app', null, PARAM_INT);
$tsort = optional_param('tsort', null, PARAM_ALPHA);
$url = new moodle_url('/mod/organizer/view_action.php');
$url->param('id', $cm->id);
$url->param('mode', $mode);
$url->param('action', $action);
$url->param('sesskey', sesskey());
$PAGE->set_url($url);
$PAGE->set_pagelayout('standard');
$PAGE->set_title($organizer->name);
$PAGE->set_heading($course->fullname);
$redirecturl = new moodle_url('/mod/organizer/view.php', array('id' => $cm->id, 'mode' => $mode, 'action' => $action));
$logurl = 'view_action.php?id=' . $cm->id . '&mode=' . $mode . '&action=' . $action;
if ($bulkaction) {
if (!$slots) {
// If an action is chosen but no slots were selected: redirect with message.
$_SESSION["infoboxmessage"] = $OUTPUT->notification(get_string('message_warning_no_slots_selected', 'organizer'),
'error');
redirect($redirecturl->out());
} else {
$slotids = implode(',', array_values($slots));
$organizerexpired = isset($organizer->duedate) && $organizer->duedate - time() < 0;
switch($bulkaction) {
case 'edit':
require_capability('mod/organizer:editslots', $context);
$redirecturl = new moodle_url('/mod/organizer/slots_edit.php',
array('id' => $cm->id, 'mode' => $mode, 'slots' => $slotids));
redirect($redirecturl);
break;
case 'delete':
require_capability('mod/organizer:deleteslots', $context);
$redirecturl = new moodle_url('/mod/organizer/slots_delete.php',
array('id' => $cm->id, 'mode' => $mode, 'slots' => $slotids));
redirect($redirecturl);
break;
case 'print':
require_capability('mod/organizer:printslots', $context);
$redirecturl = new moodle_url('/mod/organizer/slots_print.php',
array('id' => $cm->id, 'mode' => $mode, 'slots' => $slotids));
redirect($redirecturl);
break;
case 'eval':
require_capability('mod/organizer:evalslots', $context);
$redirecturl = new moodle_url('/mod/organizer/slots_eval.php',
array('id' => $cm->id, 'mode' => $mode, 'slots' => $slotids));
redirect($redirecturl);
break;
default:
print_error('Unknown bulkaction!');
die;
}
}
}
if ($action == ORGANIZER_ACTION_REGISTER || $action == ORGANIZER_ACTION_QUEUE) {
require_capability('mod/organizer:register', $context);
if (!organizer_participants_action_allowed($action, $slot, $organizer, $context)) {
$_SESSION["infoboxmessage"] = $OUTPUT->notification(get_string('message_error_action_notallowed',
'organizer'), 'success');
redirect($redirecturl);
}
$group = organizer_fetch_my_group();
$groupid = $group ? $group->id : 0;
$success = organizer_register_appointment($slot, $groupid);
if ($success) {
if ($action == ORGANIZER_ACTION_QUEUE) {
if ($groupid) {
$_SESSION["infoboxmessage"] = $OUTPUT->notification(get_string('message_info_queued_group',
'organizer'), 'success');
} else {
$_SESSION["infoboxmessage"] = $OUTPUT->notification(get_string('message_info_queued',
'organizer'), 'success');
}
$event = \mod_organizer\event\queue_added::create(
array(
'objectid' => $PAGE->cm->id,
'context' => $PAGE->context
)
);
organizer_prepare_and_send_message($slot, 'register_notify_teacher:queue'); // Message.
if ($group) {
organizer_prepare_and_send_message($slot, 'group_registration_notify:student:queue');
}
} else {
if ($groupid) {
$_SESSION["infoboxmessage"] = $OUTPUT->notification(get_string('message_info_registered_group',
'organizer'), 'success');
} else {
$_SESSION["infoboxmessage"] = $OUTPUT->notification(get_string('message_info_registered',
'organizer'), 'success');
}
$event = \mod_organizer\event\appointment_added::create(
array(
'objectid' => $PAGE->cm->id,
'context' => $PAGE->context
)
);
organizer_prepare_and_send_message($slot, 'register_notify_teacher:register'); // Message.
if ($group) {
organizer_prepare_and_send_message($slot, 'group_registration_notify:student:register');
}
}
$event->trigger();
} else {
if ($groupid) {
$_SESSION["infoboxmessage"] = $OUTPUT->notification(get_string('message_error_slot_full_group',
'organizer'), 'error');
} else {
$_SESSION["infoboxmessage"] = $OUTPUT->notification(get_string('message_error_slot_full_single',
'organizer'), 'error');
}
}
redirect($redirecturl);
} else if ($action == ORGANIZER_ACTION_UNREGISTER || $action == ORGANIZER_ACTION_UNQUEUE) {
require_capability('mod/organizer:unregister', $context);
if (!organizer_participants_action_allowed($action, $slot, $organizer, $context)) {
print_error('Inconsistent state: Cannot execute registration action! Please navigate back and refresh your browser!');
die();
}
$group = organizer_fetch_my_group();
$groupid = $group ? $group->id : 0;
if ($action == ORGANIZER_ACTION_UNREGISTER) {
$success = organizer_unregister_appointment($slot, $groupid, $organizer->id);
} else {
$success = organizer_delete_from_queue($slot, $USER->id, $groupid);
}
if ($success) {
if ($action == ORGANIZER_ACTION_UNREGISTER) {
if ($groupid) {
$_SESSION["infoboxmessage"] = $OUTPUT->notification(get_string('message_info_unregistered_group',
'organizer'), 'success');
} else {
$_SESSION["infoboxmessage"] = $OUTPUT->notification(get_string('message_info_unregistered',
'organizer'), 'success');
}
$event = \mod_organizer\event\appointment_removed::create(
array(
'objectid' => $PAGE->cm->id,
'context' => $PAGE->context
)
);
organizer_prepare_and_send_message($slot, 'register_notify_teacher:unregister'); // Message.
if ($group) {
organizer_prepare_and_send_message($slot, 'group_registration_notify:student:unregister');
}
} else {
if ($groupid) {
$_SESSION["infoboxmessage"] = $OUTPUT->notification(get_string('message_info_unqueued_group',
'organizer'), 'success');
} else {
$_SESSION["infoboxmessage"] = $OUTPUT->notification(get_string('message_info_unqueued',
'organizer'), 'success');
}
$event = \mod_organizer\event\queue_removed::create(
array(
'objectid' => $PAGE->cm->id,
'context' => $PAGE->context
)
);
organizer_prepare_and_send_message($slot, 'register_notify_teacher:unqueue'); // Message.
if ($group) {
organizer_prepare_and_send_message($slot, 'group_registration_notify:student:unqueue');
}
}
$event->trigger();
} else {
if ($action == ORGANIZER_ACTION_UNREGISTER) {
$_SESSION["infoboxmessage"] = $OUTPUT->notification(get_string('message_error_unknown_unregister',
'organizer'), 'error');
} else {
$_SESSION["infoboxmessage"] = $OUTPUT->notification(get_string('message_error_unknown_unqueue',
'organizer'), 'error');
}
}
redirect($redirecturl);
} else if ($action == ORGANIZER_ACTION_REREGISTER) {
require_capability('mod/organizer:register', $context);
require_capability('mod/organizer:unregister', $context);
if (!organizer_participants_action_allowed($action, $slot, $organizer, $context)) {
print_error('Inconsistent state: Cannot execute registration action! Please navigate back and refresh your browser!');
}
$group = organizer_fetch_my_group();
$groupid = $group ? $group->id : 0;
$success = organizer_reregister_appointment($slot, $groupid);
if ($success) {
if ($groupid) {
$_SESSION["infoboxmessage"] = $OUTPUT->notification(get_string('message_info_reregistered_group',
'organizer'), 'success');
} else {
$_SESSION["infoboxmessage"] = $OUTPUT->notification(get_string('message_info_reregistered',
'organizer'), 'success');
}
$event = \mod_organizer\event\appointment_removed::create(
array(
'objectid' => $PAGE->cm->id,
'context' => $PAGE->context
)
);
$event->trigger();
$event = \mod_organizer\event\appointment_added::create(
array(
'objectid' => $PAGE->cm->id,
'context' => $PAGE->context
)
);
$event->trigger();
organizer_prepare_and_send_message($slot, 'register_notify_teacher:reregister');
if ($group) {
organizer_prepare_and_send_message($slot, 'group_registration_notify:student:reregister');
}
} else {
if (organizer_is_group_mode()) {
$_SESSION["infoboxmessage"] = $OUTPUT->notification(get_string('message_error_slot_full_group',
'organizer'), 'error');
} else {
$_SESSION["infoboxmessage"] = $OUTPUT->notification(get_string('message_error_slot_full_single',
'organizer'), 'error');
}
}
redirect($redirecturl);
} else {
$_SESSION["infoboxmessage"] = "";
// If no actionselectbutton was chosen: redirect to view.php.
redirect($redirecturl);
}
die;
/**
* Checks if the participant is allowed and able to process the given action on the given slot.
*
* @param string $action Participant's action like register, unregister, etc...
* @param object $slot The slot to which the action is applied.
* @param object $organizer
* @param object $context
* @return boolean Whether this action is allowed or possible for the participant or not
* @throws dml_exception
* @throws coding_exception
*/
function organizer_participants_action_allowed($action, $slot, $organizer, $context) {
global $DB, $USER;
if (!$DB->record_exists('organizer_slots', array('id' => $slot))) {
return false;
}
$slotx = new organizer_slot($slot);
$rightreg = has_capability('mod/organizer:register', $context, null, false);
$rightunreg = has_capability('mod/organizer:unregister', $context, null, false);
$userslot = organizer_get_slot_user_appointment($slotx) ? true : false;
$slotexpired = $slotx->is_past_due() || $slotx->is_past_deadline();
$instancedisabled = $slotx->organizer_unavailable() || $slotx->organizer_expired();
$slotfull = $slotx->is_full();
$notavailable = $instancedisabled || !$slotx->organizer_groupmode_user_has_access() || $slotx->is_evaluated();
if ($organizer->isgrouporganizer == ORGANIZER_GROUPMODE_EXISTINGGROUPS) {
$alreadyinqueue = $slotx->is_group_in_queue();
$group = organizer_fetch_user_group($USER->id, $organizer->id);
$lefttobook = organizer_multiplebookings_slotslefttobook($organizer, null, $group->id);
} else {
$alreadyinqueue = $slotx->is_user_in_queue($USER->id);
$lefttobook = organizer_multiplebookings_slotslefttobook($organizer, $USER->id);
}
$queueable = $organizer->queue && !$alreadyinqueue && !$notavailable;
if ($userslot) {
$allowedaction = ORGANIZER_ACTION_UNREGISTER;
$notavailable |= !$rightunreg || $slotexpired || $slotx->is_evaluated();
} else if (!$slotfull) {
$notavailable |= !$rightreg || $slotexpired;
if ($lefttobook) {
$allowedaction = ORGANIZER_ACTION_REGISTER;
} else {
$allowedaction = ORGANIZER_ACTION_REREGISTER;
}
} else if ($slotfull) {
if ($queueable) {
$allowedaction = ORGANIZER_ACTION_QUEUE;
$notavailable |= !$rightreg || $slotexpired || !$lefttobook;
}
}
if ($alreadyinqueue) {
$allowedaction = ORGANIZER_ACTION_UNQUEUE;
$notavailable |= !$rightunreg || $slotexpired;
}
return ($allowedaction == $action) && !$notavailable;
}