MDL-37290 course: fixed up navbar when editing categories
[moodle.git] / course / category.php
CommitLineData
58b45fd7 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
17/**
18 * Displays the top level category or all courses
19 * In editing mode, allows the admin to edit a category,
20 * and rearrange courses
21 *
22 * @package core
23 * @subpackage course
24 * @copyright 1999 onwards Martin Dougiamas {@link http://moodle.com}
25 * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
26 */
27
28require_once("../config.php");
29require_once($CFG->dirroot.'/course/lib.php');
d37de5e0 30require_once($CFG->libdir.'/textlib.class.php');
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31
32$id = required_param('id', PARAM_INT); // Category id
33$page = optional_param('page', 0, PARAM_INT); // which page to show
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34$categoryedit = optional_param('categoryedit', -1, PARAM_BOOL);
35$hide = optional_param('hide', 0, PARAM_INT);
36$show = optional_param('show', 0, PARAM_INT);
37$moveup = optional_param('moveup', 0, PARAM_INT);
38$movedown = optional_param('movedown', 0, PARAM_INT);
39$moveto = optional_param('moveto', 0, PARAM_INT);
40$resort = optional_param('resort', 0, PARAM_BOOL);
41$sesskey = optional_param('sesskey', '', PARAM_RAW);
42
a46405df 43// MDL-27824 - This is a temporary fix until we have the proper
eabdc81c 44// way to check/initialize $CFG value.
74b266a3 45// @todo MDL-35138 remove this temporary solution
9bc298d2 46if (!empty($CFG->coursesperpage)) {
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47 $defaultperpage = $CFG->coursesperpage;
48} else {
49 $defaultperpage = 20;
50}
51$perpage = optional_param('perpage', $defaultperpage, PARAM_INT); // how many per page
52
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53if (empty($id)) {
54 print_error("unknowcategory");
55}
56
57$PAGE->set_category_by_id($id);
58$PAGE->set_url(new moodle_url('/course/category.php', array('id' => $id)));
59// This is sure to be the category context
60$context = $PAGE->context;
61// And the object has been loaded for us no need for another DB call
62$category = $PAGE->category;
63
64$canedit = can_edit_in_category($category->id);
65if ($canedit) {
66 if ($categoryedit !== -1) {
67 $USER->editing = $categoryedit;
a102baea 68 }
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69 require_login();
70 $editingon = $PAGE->user_is_editing();
71} else {
72 if ($CFG->forcelogin) {
ebff4779 73 require_login();
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74 }
75 $editingon = false;
76}
77
78if (!$category->visible) {
79 require_capability('moodle/category:viewhiddencategories', $context);
80}
81
82$canmanage = has_capability('moodle/category:manage', $context);
83$sesskeyprovided = !empty($sesskey) && confirm_sesskey($sesskey);
84
85// Process any category actions.
86if ($canmanage && $resort && $sesskeyprovided) {
87 // Resort the category if requested
ceed31ad 88 if ($courses = get_courses($category->id, '', 'c.id,c.fullname,c.sortorder')) {
d37de5e0 89 collatorlib::asort_objects_by_property($courses, 'fullname', collatorlib::SORT_NATURAL);
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90 $i = 1;
91 foreach ($courses as $course) {
92 $DB->set_field('course', 'sortorder', $category->sortorder+$i, array('id'=>$course->id));
93 $i++;
ebff4779 94 }
f73cea54 95 fix_course_sortorder(); // should not be needed
d2b6ba70 96 }
f73cea54 97}
c2cb4545 98
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99// Process any course actions.
100if ($editingon && $sesskeyprovided) {
ebff4779 101
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102 // Move a specified course to a new category
103 if (!empty($moveto) and $data = data_submitted()) {
104 // Some courses are being moved
105 // user must have category update in both cats to perform this
106 require_capability('moodle/category:manage', $context);
107 require_capability('moodle/category:manage', get_context_instance(CONTEXT_COURSECAT, $moveto));
108
109 if (!$destcategory = $DB->get_record('course_categories', array('id' => $data->moveto))) {
110 print_error('cannotfindcategory', '', '', $data->moveto);
52a554db 111 }
49d3bab8 112
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113 $courses = array();
114 foreach ($data as $key => $value) {
115 if (preg_match('/^c\d+$/', $key)) {
116 $courseid = substr($key, 1);
117 array_push($courses, $courseid);
f2bb0045 118
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119 // check this course's category
120 if ($movingcourse = $DB->get_record('course', array('id'=>$courseid))) {
121 if ($movingcourse->category != $id ) {
122 print_error('coursedoesnotbelongtocategory');
4c211e95 123 }
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124 } else {
125 print_error('cannotfindcourse');
d2b6ba70 126 }
e295df44 127 }
c2cb4545 128 }
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129 move_courses($courses, $data->moveto);
130 }
c2cb4545 131
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132 // Hide or show a course
133 if (!empty($hide) or !empty($show)) {
134 if (!empty($hide)) {
135 $course = $DB->get_record('course', array('id' => $hide));
136 $visible = 0;
137 } else {
138 $course = $DB->get_record('course', array('id' => $show));
139 $visible = 1;
140 }
4c211e95 141
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142 if ($course) {
143 $coursecontext = get_context_instance(CONTEXT_COURSE, $course->id);
144 require_capability('moodle/course:visibility', $coursecontext);
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145 // Set the visibility of the course. we set the old flag when user manually changes visibility of course.
146 $DB->update_record('course', array('id' => $course->id, 'visible' => $visible, 'visibleold' => $visible, 'timemodified' => time()));
d2b6ba70 147 }
f73cea54 148 }
c2cb4545 149
c2cb4545 150
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151 // Move a course up or down
152 if (!empty($moveup) or !empty($movedown)) {
153 require_capability('moodle/category:manage', $context);
daa27ce4 154
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155 // Ensure the course order has continuous ordering
156 fix_course_sortorder();
157 $swapcourse = NULL;
daa27ce4 158
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159 if (!empty($moveup)) {
160 if ($movecourse = $DB->get_record('course', array('id' => $moveup))) {
161 $swapcourse = $DB->get_record('course', array('sortorder' => $movecourse->sortorder - 1));
c2cb4545 162 }
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163 } else {
164 if ($movecourse = $DB->get_record('course', array('id' => $movedown))) {
165 $swapcourse = $DB->get_record('course', array('sortorder' => $movecourse->sortorder + 1));
0cbe8111 166 }
ba87a4da 167 }
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168 if ($swapcourse and $movecourse) {
169 // check course's category
170 if ($movecourse->category != $id) {
171 print_error('coursedoesnotbelongtocategory');
172 }
173 $DB->set_field('course', 'sortorder', $swapcourse->sortorder, array('id' => $movecourse->id));
174 $DB->set_field('course', 'sortorder', $movecourse->sortorder, array('id' => $swapcourse->id));
afc45eb1 175 }
1fb3d044 176 }
177
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178} // End of editing stuff
179
180// Prepare the standard URL params for this page. We'll need them later.
181$urlparams = array('id' => $id);
182if ($page) {
183 $urlparams['page'] = $page;
184}
185if ($perpage) {
186 $urlparams['perpage'] = $perpage;
187}
188
189// Begin output
190if ($editingon && can_edit_in_category()) {
191 // Integrate into the admin tree only if the user can edit categories at the top level,
192 // otherwise the admin block does not appear to this user, and you get an error.
193 require_once($CFG->libdir . '/adminlib.php');
76dee485 194 navigation_node::override_active_url(new moodle_url('/course/category.php', array('id' => $id)));
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195 admin_externalpage_setup('coursemgmt', '', $urlparams, $CFG->wwwroot . '/course/category.php');
196 $PAGE->set_context($context); // Ensure that we are actually showing blocks etc for the cat context
197
198 $settingsnode = $PAGE->settingsnav->find_active_node();
199 if ($settingsnode) {
200 $settingsnode->make_inactive();
201 $settingsnode->force_open();
202 $PAGE->navbar->add($settingsnode->text, $settingsnode->action);
203 }
204 echo $OUTPUT->header();
205} else {
206 $site = get_site();
207 $PAGE->set_title("$site->shortname: $category->name");
208 $PAGE->set_heading($site->fullname);
209 $PAGE->set_button(print_course_search('', true, 'navbar'));
210 $PAGE->set_pagelayout('coursecategory');
211 echo $OUTPUT->header();
212}
213
1fb3d044 214/// Print the category selector
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215$displaylist = array();
216$notused = array();
217make_categories_list($displaylist, $notused);
1fb3d044 218
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219echo '<div class="categorypicker">';
220$select = new single_select(new moodle_url('/course/category.php'), 'id', $displaylist, $category->id, null, 'switchcategory');
221$select->set_label(get_string('categories').':');
222echo $OUTPUT->render($select);
223echo '</div>';
1fb3d044 224
225/// Print current category description
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226if (!$editingon && $category->description) {
227 echo $OUTPUT->box_start();
228 $options = new stdClass;
229 $options->noclean = true;
230 $options->para = false;
231 $options->overflowdiv = true;
232 if (!isset($category->descriptionformat)) {
233 $category->descriptionformat = FORMAT_MOODLE;
1fb3d044 234 }
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235 $text = file_rewrite_pluginfile_urls($category->description, 'pluginfile.php', $context->id, 'coursecat', 'description', null);
236 echo format_text($text, $category->descriptionformat, $options);
237 echo $OUTPUT->box_end();
238}
239
240if ($editingon && $canmanage) {
241 echo $OUTPUT->container_start('buttons');
242
243 // Print button to update this category
244 $url = new moodle_url('/course/editcategory.php', array('id' => $category->id));
245 echo $OUTPUT->single_button($url, get_string('editcategorythis'), 'get');
246
247 // Print button for creating new categories
248 $url = new moodle_url('/course/editcategory.php', array('parent' => $category->id));
249 echo $OUTPUT->single_button($url, get_string('addsubcategory'), 'get');
250
251 echo $OUTPUT->container_end();
252}
253
254// Print out all the sub-categories
255// In order to view hidden subcategories the user must have the viewhiddencategories
256// capability in the current category.
257if (has_capability('moodle/category:viewhiddencategories', $context)) {
258 $categorywhere = '';
259} else {
260 $categorywhere = 'AND cc.visible = 1';
261}
262// We're going to preload the context for the subcategory as we know that we
263// need it later on for formatting.
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264
265$ctxselect = context_helper::get_preload_record_columns_sql('ctx');
266$sql = "SELECT cc.*, $ctxselect
f73cea54 267 FROM {course_categories} cc
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268 JOIN {context} ctx ON cc.id = ctx.instanceid
269 WHERE cc.parent = :parentid AND
270 ctx.contextlevel = :contextlevel
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271 $categorywhere
272 ORDER BY cc.sortorder ASC";
e141bc81 273$subcategories = $DB->get_recordset_sql($sql, array('parentid' => $category->id, 'contextlevel' => CONTEXT_COURSECAT));
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274// Prepare a table to display the sub categories.
275$table = new html_table;
276$table->attributes = array('border' => '0', 'cellspacing' => '2', 'cellpadding' => '4', 'class' => 'generalbox boxaligncenter category_subcategories');
277$table->head = array(new lang_string('subcategories'));
278$table->data = array();
96e78552 279$baseurl = new moodle_url('/course/category.php');
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280foreach ($subcategories as $subcategory) {
281 // Preload the context we will need it to format the category name shortly.
e141bc81 282 context_helper::preload_from_record($subcategory);
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283 $context = get_context_instance(CONTEXT_COURSECAT, $subcategory->id);
284 // Prepare the things we need to create a link to the subcategory
285 $attributes = $subcategory->visible ? array() : array('class' => 'dimmed');
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286 $text = format_string($subcategory->name, true, array('context' => $context));
287 // Add the subcategory to the table
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288 $baseurl->param('id', $subcategory->id);
289 $table->data[] = array(html_writer::link($baseurl, $text, $attributes));
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290}
291
292$subcategorieswereshown = (count($table->data) > 0);
293if ($subcategorieswereshown) {
294 echo html_writer::table($table);
295}
296
297// Print out all the courses
298$courses = get_courses_page($category->id, 'c.sortorder ASC',
299 'c.id,c.sortorder,c.shortname,c.fullname,c.summary,c.visible',
300 $totalcount, $page*$perpage, $perpage);
301$numcourses = count($courses);
302
303if (!$courses) {
304 if (empty($subcategorieswereshown)) {
305 echo $OUTPUT->heading(get_string("nocoursesyet"));
09deab06 306 }
307
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308} else if ($numcourses <= COURSE_MAX_SUMMARIES_PER_PAGE and !$page and !$editingon) {
309 echo $OUTPUT->box_start('courseboxes');
310 print_courses($category);
311 echo $OUTPUT->box_end();
daa27ce4 312
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313} else {
314 echo $OUTPUT->paging_bar($totalcount, $page, $perpage, "/course/category.php?id=$category->id&perpage=$perpage");
c2cb4545 315
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316 echo '<form id="movecourses" action="category.php" method="post"><div>';
317 echo '<input type="hidden" name="sesskey" value="'.sesskey().'" />';
318 echo '<table border="0" cellspacing="2" cellpadding="4" class="generalbox boxaligncenter"><tr>';
319 echo '<th class="header" scope="col">'.get_string('courses').'</th>';
320 if ($editingon) {
321 echo '<th class="header" scope="col">'.get_string('edit').'</th>';
322 echo '<th class="header" scope="col">'.get_string('select').'</th>';
323 } else {
324 echo '<th class="header" scope="col">&nbsp;</th>';
325 }
326 echo '</tr>';
c2cb4545 327
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328 $count = 0;
329 $abletomovecourses = false; // for now
c2cb4545 330
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331 // Checking if we are at the first or at the last page, to allow courses to
332 // be moved up and down beyond the paging border
333 if ($totalcount > $perpage) {
334 $atfirstpage = ($page == 0);
335 if ($perpage > 0) {
336 $atlastpage = (($page + 1) == ceil($totalcount / $perpage));
3d95bdb7 337 } else {
f73cea54 338 $atlastpage = true;
d2b6ba70 339 }
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340 } else {
341 $atfirstpage = true;
342 $atlastpage = true;
343 }
d2b6ba70 344
96e78552 345 $baseurl = new moodle_url('/course/category.php', $urlparams + array('sesskey' => sesskey()));
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346 foreach ($courses as $acourse) {
347 $coursecontext = get_context_instance(CONTEXT_COURSE, $acourse->id);
c2cb4545 348
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349 $count++;
350 $up = ($count > 1 || !$atfirstpage);
351 $down = ($count < $numcourses || !$atlastpage);
c2cb4545 352
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353 $linkcss = $acourse->visible ? '' : ' class="dimmed" ';
354 echo '<tr>';
355 $coursename = get_course_display_name_for_list($acourse);
356 echo '<td><a '.$linkcss.' href="view.php?id='.$acourse->id.'">'. format_string($coursename) .'</a></td>';
357 if ($editingon) {
358 echo '<td>';
359 if (has_capability('moodle/course:update', $coursecontext)) {
360 $url = new moodle_url('/course/edit.php', array('id' => $acourse->id, 'category' => $id, 'returnto' => 'category'));
361 echo $OUTPUT->action_icon($url, new pix_icon('t/edit', get_string('settings')));
7b0d5cd5 362 }
c851eb94 363
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364 // role assignment link
365 if (has_capability('moodle/course:enrolreview', $coursecontext)) {
366 $url = new moodle_url('/enrol/users.php', array('id' => $acourse->id));
367 echo $OUTPUT->action_icon($url, new pix_icon('i/users', get_string('enrolledusers', 'enrol')));
368 }
e295df44 369
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370 if (can_delete_course($acourse->id)) {
371 $url = new moodle_url('/course/delete.php', array('id' => $acourse->id));
372 echo $OUTPUT->action_icon($url, new pix_icon('t/delete', get_string('delete')));
373 }
e295df44 374
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375 // MDL-8885, users with no capability to view hidden courses, should not be able to lock themselves out
376 if (has_capability('moodle/course:visibility', $coursecontext) && has_capability('moodle/course:viewhiddencourses', $coursecontext)) {
f73cea54 377 if (!empty($acourse->visible)) {
96e78552 378 $url = new moodle_url($baseurl, array('hide' => $acourse->id));
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379 echo $OUTPUT->action_icon($url, new pix_icon('t/hide', get_string('hide')));
380 } else {
96e78552 381 $url = new moodle_url($baseurl, array('show' => $acourse->id));
f73cea54 382 echo $OUTPUT->action_icon($url, new pix_icon('t/show', get_string('show')));
555b75f4 383 }
f73cea54 384 }
bbbf2d40 385
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386 if (has_capability('moodle/backup:backupcourse', $coursecontext)) {
387 $url = new moodle_url('/backup/backup.php', array('id' => $acourse->id));
388 echo $OUTPUT->action_icon($url, new pix_icon('t/backup', get_string('backup')));
389 }
bbbf2d40 390
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391 if (has_capability('moodle/restore:restorecourse', $coursecontext)) {
392 $url = new moodle_url('/backup/restorefile.php', array('contextid' => $coursecontext->id));
393 echo $OUTPUT->action_icon($url, new pix_icon('t/restore', get_string('restore')));
394 }
e295df44 395
f73cea54 396 if ($canmanage) {
f73cea54 397 if ($up) {
96e78552 398 $url = new moodle_url($baseurl, array('moveup' => $acourse->id));
f73cea54 399 echo $OUTPUT->action_icon($url, new pix_icon('t/up', get_string('moveup')));
555b75f4 400 }
daa27ce4 401
f73cea54 402 if ($down) {
96e78552 403 $url = new moodle_url($baseurl, array('movedown' => $acourse->id));
f73cea54 404 echo $OUTPUT->action_icon($url, new pix_icon('t/down', get_string('movedown')));
3d95bdb7 405 }
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406 $abletomovecourses = true;
407 }
e295df44 408
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409 echo '</td>';
410 echo '<td align="center">';
411 echo '<input type="checkbox" name="c'.$acourse->id.'" />';
412 echo '</td>';
413 } else {
414 echo '<td align="right">';
415 // print enrol info
416 if ($icons = enrol_get_course_info_icons($acourse)) {
417 foreach ($icons as $pix_icon) {
418 echo $OUTPUT->render($pix_icon);
3d95bdb7 419 }
c2cb4545 420 }
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421 if (!empty($acourse->summary)) {
422 $url = new moodle_url("/course/info.php?id=$acourse->id");
423 echo $OUTPUT->action_link($url, '<img alt="'.get_string('info').'" class="icon" src="'.$OUTPUT->pix_url('i/info') . '" />',
424 new popup_action('click', $url, 'courseinfo'), array('title'=>get_string('summary')));
425 }
426 echo "</td>";
f2bb0045 427 }
f73cea54 428 echo "</tr>";
c2cb4545 429 }
e295df44 430
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431 if ($abletomovecourses) {
432 $movetocategories = array();
433 $notused = array();
434 make_categories_list($movetocategories, $notused, 'moodle/category:manage');
435 $movetocategories[$category->id] = get_string('moveselectedcoursesto');
436 echo '<tr><td colspan="3" align="right">';
0fa95a3c 437 echo html_writer::label(get_string('moveselectedcoursesto'), 'movetoid', false, array('class' => 'accesshide'));
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438 echo html_writer::select($movetocategories, 'moveto', $category->id, null, array('id'=>'movetoid'));
439 $PAGE->requires->js_init_call('M.util.init_select_autosubmit', array('movecourses', 'movetoid', false));
440 echo '<input type="hidden" name="id" value="'.$category->id.'" />';
441 echo '</td></tr>';
c432fd32 442 }
49d3bab8 443
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444 echo '</table>';
445 echo '</div></form>';
446 echo '<br />';
447}
77eddcd5 448
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449echo '<div class="buttons">';
450if ($canmanage and $numcourses > 1) {
451 // Print button to re-sort courses by name
452 $url = new moodle_url('/course/category.php', array('id' => $category->id, 'resort' => 'name', 'sesskey' => sesskey()));
453 echo $OUTPUT->single_button($url, get_string('resortcoursesbyname'), 'get');
454}
455
456if (has_capability('moodle/course:create', $context)) {
457 // Print button to create a new course
458 $url = new moodle_url('/course/edit.php', array('category' => $category->id, 'returnto' => 'category'));
459 echo $OUTPUT->single_button($url, get_string('addnewcourse'), 'get');
460}
e295df44 461
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462if (!empty($CFG->enablecourserequests) && $category->id == $CFG->defaultrequestcategory) {
463 print_course_request_buttons(get_context_instance(CONTEXT_SYSTEM));
464}
465echo '</div>';
e295df44 466
f73cea54 467print_course_search();
c2cb4545 468
7a3a0a30 469echo $OUTPUT->footer();