weekly release 3.6dev
[moodle.git] / question / category.php
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aeb15530 1<?php
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2// This file is part of Moodle - http://moodle.org/
3//
4// Moodle is free software: you can redistribute it and/or modify
5// it under the terms of the GNU General Public License as published by
6// the Free Software Foundation, either version 3 of the License, or
7// (at your option) any later version.
8//
9// Moodle is distributed in the hope that it will be useful,
10// but WITHOUT ANY WARRANTY; without even the implied warranty of
11// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12// GNU General Public License for more details.
13//
14// You should have received a copy of the GNU General Public License
15// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
16
516cf3eb 17/**
d3603157 18 * This script allows a teacher to create, edit and delete question categories.
bc649d80 19 *
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20 * @package moodlecore
21 * @subpackage questionbank
22 * @copyright 1999 onwards Martin Dougiamas {@link http://moodle.com}
23 * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
bc649d80 24 */
516cf3eb 25
516cf3eb 26
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27require_once("../config.php");
28require_once($CFG->dirroot."/question/editlib.php");
29require_once($CFG->dirroot."/question/category_class.php");
30
31list($thispageurl, $contexts, $cmid, $cm, $module, $pagevars) =
32 question_edit_setup('categories', '/question/category.php');
b72ff476 33
e4ca1184 34// Get values from form for actions on this page.
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35$param = new stdClass();
36$param->moveup = optional_param('moveup', 0, PARAM_INT);
37$param->movedown = optional_param('movedown', 0, PARAM_INT);
38$param->moveupcontext = optional_param('moveupcontext', 0, PARAM_INT);
39$param->movedowncontext = optional_param('movedowncontext', 0, PARAM_INT);
40$param->tocontext = optional_param('tocontext', 0, PARAM_INT);
41$param->left = optional_param('left', 0, PARAM_INT);
42$param->right = optional_param('right', 0, PARAM_INT);
43$param->delete = optional_param('delete', 0, PARAM_INT);
44$param->confirm = optional_param('confirm', 0, PARAM_INT);
45$param->cancel = optional_param('cancel', '', PARAM_ALPHA);
46$param->move = optional_param('move', 0, PARAM_INT);
47$param->moveto = optional_param('moveto', 0, PARAM_INT);
48$param->edit = optional_param('edit', 0, PARAM_INT);
dac786f3 49
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50$url = new moodle_url($thispageurl);
51foreach ((array)$param as $key=>$value) {
52 if (($key !== 'cancel' && $value !== 0) || ($key === 'cancel' && $value !== '')) {
53 $url->param($key, $value);
7f093351 54 }
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55}
56$PAGE->set_url($url);
e2c80339 57
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58$qcobject = new question_category_object($pagevars['cpage'], $thispageurl,
59 $contexts->having_one_edit_tab_cap('categories'), $param->edit,
60 $pagevars['cat'], $param->delete, $contexts->having_cap('moodle/question:add'));
516cf3eb 61
e4ca1184 62if ($param->left || $param->right || $param->moveup || $param->movedown) {
d3603157 63 require_sesskey();
87bee3bc 64
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65 foreach ($qcobject->editlists as $list) {
66 // Processing of these actions is handled in the method where appropriate and page redirects.
67 $list->process_actions($param->left, $param->right, $param->moveup, $param->movedown);
68 }
69}
70
71if ($param->moveupcontext || $param->movedowncontext) {
72 require_sesskey();
73
74 if ($param->moveupcontext) {
75 $catid = $param->moveupcontext;
87bee3bc 76 } else {
e4ca1184 77 $catid = $param->movedowncontext;
271e6dec 78 }
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79 $newtopcat = question_get_top_category($param->tocontext);
80 if (!$newtopcat) {
81 print_error('invalidcontext');
82 }
e4ca1184 83 $oldcat = $DB->get_record('question_categories', array('id' => $catid), '*', MUST_EXIST);
ee1052bd 84 $qcobject->update_category($catid, "{$newtopcat->id},{$param->tocontext}", $oldcat->name, $oldcat->info);
e4ca1184 85 // The previous line does a redirect().
d3603157 86}
e4ca1184 87
54640aba 88if ($param->delete) {
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89 if (!$category = $DB->get_record("question_categories", array("id" => $param->delete))) {
90 print_error('nocate', 'question', $thispageurl->out(), $param->delete);
271e6dec 91 }
54640aba 92
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93 question_remove_stale_questions_from_category($param->delete);
94 $questionstomove = $DB->count_records("question", array("category" => $param->delete));
95
96 // Second pass, if we still have questions to move, setup the form.
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97 if ($questionstomove) {
98 $categorycontext = context::instance_by_id($category->contextid);
99 $qcobject->moveform = new question_move_form($thispageurl,
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100 array('contexts' => array($categorycontext), 'currentcat' => $param->delete));
101 if ($qcobject->moveform->is_cancelled()) {
54640aba 102 redirect($thispageurl);
31031e98 103 } else if ($formdata = $qcobject->moveform->get_data()) {
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104 list($tocategoryid, $tocontextid) = explode(',', $formdata->category);
105 $qcobject->move_questions_and_delete_category($formdata->delete, $tocategoryid);
106 $thispageurl->remove_params('cat', 'category');
107 redirect($thispageurl);
108 }
271e6dec 109 }
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110} else {
111 $questionstomove = 0;
112}
e4ca1184 113
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114if ($qcobject->catform->is_cancelled()) {
115 redirect($thispageurl);
116} else if ($catformdata = $qcobject->catform->get_data()) {
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117 $catformdata->infoformat = $catformdata->info['format'];
118 $catformdata->info = $catformdata->info['text'];
d3603157 119 if (!$catformdata->id) {//new category
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120 $qcobject->add_category($catformdata->parent, $catformdata->name,
121 $catformdata->info, false, $catformdata->infoformat);
d3603157 122 } else {
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123 $qcobject->update_category($catformdata->id, $catformdata->parent,
124 $catformdata->name, $catformdata->info, $catformdata->infoformat);
271e6dec 125 }
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126 redirect($thispageurl);
127} else if ((!empty($param->delete) and (!$questionstomove) and confirm_sesskey())) {
128 $qcobject->delete_category($param->delete);//delete the category now no questions to move
129 $thispageurl->remove_params('cat', 'category');
130 redirect($thispageurl);
131}
b72ff476 132
e4ca1184 133if ($param->edit) {
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134 $PAGE->navbar->add(get_string('editingcategory', 'question'));
135}
b72ff476 136
e4ca1184 137$PAGE->set_title(get_string('editcategories', 'question'));
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138$PAGE->set_heading($COURSE->fullname);
139echo $OUTPUT->header();
aeb15530 140
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141// Print horizontal nav if needed.
142$renderer = $PAGE->get_renderer('core_question', 'bank');
143echo $renderer->extra_horizontal_navigation();
144
e4ca1184 145// Display the UI.
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146if (!empty($param->edit)) {
147 $qcobject->edit_single_category($param->edit);
148} else if ($questionstomove){
149 $qcobject->display_move_form($questionstomove, $category);
150} else {
e4ca1184 151 // Display the user interface.
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152 $qcobject->display_user_interface();
153}
154echo $OUTPUT->footer();