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<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle 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.
//
// Moodle 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/>.
/**
* This script allows a teacher to create, edit and delete question categories.
*
* @package moodlecore
* @subpackage questionbank
* @copyright 1999 onwards Martin Dougiamas {@link http://moodle.com}
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
require_once("../config.php");
require_once($CFG->dirroot."/question/editlib.php");
require_once($CFG->dirroot."/question/category_class.php");
list($thispageurl, $contexts, $cmid, $cm, $module, $pagevars) =
question_edit_setup('categories', '/question/category.php');
// Get values from form for actions on this page.
$param = new stdClass();
$param->moveup = optional_param('moveup', 0, PARAM_INT);
$param->movedown = optional_param('movedown', 0, PARAM_INT);
$param->moveupcontext = optional_param('moveupcontext', 0, PARAM_INT);
$param->movedowncontext = optional_param('movedowncontext', 0, PARAM_INT);
$param->tocontext = optional_param('tocontext', 0, PARAM_INT);
$param->left = optional_param('left', 0, PARAM_INT);
$param->right = optional_param('right', 0, PARAM_INT);
$param->delete = optional_param('delete', 0, PARAM_INT);
$param->confirm = optional_param('confirm', 0, PARAM_INT);
$param->cancel = optional_param('cancel', '', PARAM_ALPHA);
$param->move = optional_param('move', 0, PARAM_INT);
$param->moveto = optional_param('moveto', 0, PARAM_INT);
$param->edit = optional_param('edit', 0, PARAM_INT);
$url = new moodle_url($thispageurl);
foreach ((array)$param as $key=>$value) {
if (($key !== 'cancel' && $value !== 0) || ($key === 'cancel' && $value !== '')) {
$url->param($key, $value);
}
}
$PAGE->set_url($url);
$qcobject = new question_category_object($pagevars['cpage'], $thispageurl,
$contexts->having_one_edit_tab_cap('categories'), $param->edit,
$pagevars['cat'], $param->delete, $contexts->having_cap('moodle/question:add'));
if ($param->left || $param->right || $param->moveup || $param->movedown) {
require_sesskey();
foreach ($qcobject->editlists as $list) {
// Processing of these actions is handled in the method where appropriate and page redirects.
$list->process_actions($param->left, $param->right, $param->moveup, $param->movedown);
}
}
if ($param->moveupcontext || $param->movedowncontext) {
require_sesskey();
if ($param->moveupcontext) {
$catid = $param->moveupcontext;
} else {
$catid = $param->movedowncontext;
}
$newtopcat = question_get_top_category($param->tocontext);
if (!$newtopcat) {
print_error('invalidcontext');
}
$oldcat = $DB->get_record('question_categories', array('id' => $catid), '*', MUST_EXIST);
// Log the move to another context.
$category = new stdClass();
$category->id = explode(',', $pagevars['cat'], -1)[0];
$category->contextid = $param->tocontext;
$event = \core\event\question_category_moved::create_from_question_category_instance($category);
$event->trigger();
$qcobject->update_category($catid, "{$newtopcat->id},{$param->tocontext}", $oldcat->name, $oldcat->info);
// The previous line does a redirect().
}
if ($param->delete) {
if (!$category = $DB->get_record("question_categories", array("id" => $param->delete))) {
print_error('nocate', 'question', $thispageurl->out(), $param->delete);
}
question_remove_stale_questions_from_category($param->delete);
$questionstomove = $DB->count_records("question", array("category" => $param->delete));
// Second pass, if we still have questions to move, setup the form.
if ($questionstomove) {
$categorycontext = context::instance_by_id($category->contextid);
$qcobject->moveform = new question_move_form($thispageurl,
array('contexts' => array($categorycontext), 'currentcat' => $param->delete));
if ($qcobject->moveform->is_cancelled()) {
redirect($thispageurl);
} else if ($formdata = $qcobject->moveform->get_data()) {
list($tocategoryid, $tocontextid) = explode(',', $formdata->category);
$qcobject->move_questions_and_delete_category($formdata->delete, $tocategoryid);
$thispageurl->remove_params('cat', 'category');
redirect($thispageurl);
}
}
} else {
$questionstomove = 0;
}
if ($qcobject->catform->is_cancelled()) {
redirect($thispageurl);
} else if ($catformdata = $qcobject->catform->get_data()) {
$catformdata->infoformat = $catformdata->info['format'];
$catformdata->info = $catformdata->info['text'];
if (!$catformdata->id) {//new category
$qcobject->add_category($catformdata->parent, $catformdata->name,
$catformdata->info, false, $catformdata->infoformat, $catformdata->idnumber);
} else {
$qcobject->update_category($catformdata->id, $catformdata->parent,
$catformdata->name, $catformdata->info, $catformdata->infoformat, $catformdata->idnumber);
}
redirect($thispageurl);
} else if ((!empty($param->delete) and (!$questionstomove) and confirm_sesskey())) {
$qcobject->delete_category($param->delete);//delete the category now no questions to move
$thispageurl->remove_params('cat', 'category');
redirect($thispageurl);
}
if ($param->edit) {
$PAGE->navbar->add(get_string('editingcategory', 'question'));
}
$PAGE->set_title(get_string('editcategories', 'question'));
$PAGE->set_heading($COURSE->fullname);
echo $OUTPUT->header();
// Print horizontal nav if needed.
$renderer = $PAGE->get_renderer('core_question', 'bank');
echo $renderer->extra_horizontal_navigation();
// Display the UI.
if (!empty($param->edit)) {
$qcobject->edit_single_category($param->edit);
} else if ($questionstomove){
$qcobject->display_move_form($questionstomove, $category);
} else {
// Display the user interface.
$qcobject->display_user_interface();
}
echo $OUTPUT->footer();