course/edit.php

   1 <?php
   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  * Edit course settings
  19  *
  20  * @package    core_course
  21  * @copyright  1999 onwards Martin Dougiamas (http://dougiamas.com)
  22  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  23  */
  24
  25 require_once('../config.php');
  26 require_once('lib.php');
  27 require_once('edit_form.php');
  28
  29 $id = optional_param('id', 0, PARAM_INT); // Course id.
  30 $categoryid = optional_param('category', 0, PARAM_INT); // Course category - can be changed in edit form.
  31 $returnto = optional_param('returnto', 0, PARAM_ALPHANUM); // Generic navigation return page switch.
  32 $returnurl = optional_param('returnurl', '', PARAM_LOCALURL); // A return URL. returnto must also be set to 'url'.
  33
  34 if ($returnto === 'url' && confirm_sesskey() && $returnurl) {
  35     // If returnto is 'url' then $returnurl may be used as the destination to return to after saving or cancelling.
  36     // Sesskey must be specified, and would be set by the form anyway.
  37     $returnurl = new moodle_url($returnurl);
  38 } else {
  39     if (!empty($id)) {
  40         $returnurl = new moodle_url($CFG->wwwroot . '/course/view.php', array('id' => $id));
  41     } else {
  42         $returnurl = new moodle_url($CFG->wwwroot . '/course/');
  43     }
  44     if ($returnto !== 0) {
  45         switch ($returnto) {
  46             case 'category':
  47                 $returnurl = new moodle_url($CFG->wwwroot . '/course/index.php', array('categoryid' => $categoryid));
  48                 break;
  49             case 'catmanage':
  50                 $returnurl = new moodle_url($CFG->wwwroot . '/course/management.php', array('categoryid' => $categoryid));
  51                 break;
  52             case 'topcatmanage':
  53                 $returnurl = new moodle_url($CFG->wwwroot . '/course/management.php');
  54                 break;
  55             case 'topcat':
  56                 $returnurl = new moodle_url($CFG->wwwroot . '/course/');
  57                 break;
  58         }
  59     }
  60 }
  61
  62 $PAGE->set_pagelayout('admin');
  63 if ($id) {
  64     $pageparams = array('id' => $id);
  65 } else {
  66     $pageparams = array('category' => $categoryid);
  67 }
  68 if ($returnto !== 0) {
  69     $pageparams['returnto'] = $returnto;
  70     if ($returnto === 'url' && $returnurl) {
  71         $pageparams['returnurl'] = $returnurl;
  72     }
  73 }
  74 $PAGE->set_url('/course/edit.php', $pageparams);
  75
  76 // Basic access control checks.
  77 if ($id) {
  78     // Editing course.
  79     if ($id == SITEID){
  80         // Don't allow editing of  'site course' using this from.
  81         print_error('cannoteditsiteform');
  82     }
  83
  84     // Login to the course and retrieve also all fields defined by course format.
  85     $course = get_course($id);
  86     require_login($course);
  87     $course = course_get_format($course)->get_course();
  88
  89     $category = $DB->get_record('course_categories', array('id'=>$course->category), '*', MUST_EXIST);
  90     $coursecontext = context_course::instance($course->id);
  91     require_capability('moodle/course:update', $coursecontext);
  92
  93 } else if ($categoryid) {
  94     // Creating new course in this category.
  95     $course = null;
  96     require_login();
  97     $category = $DB->get_record('course_categories', array('id'=>$categoryid), '*', MUST_EXIST);
  98     $catcontext = context_coursecat::instance($category->id);
  99     require_capability('moodle/course:create', $catcontext);
 100     $PAGE->set_context($catcontext);
 101
 102 } else {
 103     require_login();
 104     print_error('needcoursecategroyid');
 105 }
 106
 107 // Prepare course and the editor.
 108 $editoroptions = array('maxfiles' => EDITOR_UNLIMITED_FILES, 'maxbytes'=>$CFG->maxbytes, 'trusttext'=>false, 'noclean'=>true);
 109 $overviewfilesoptions = course_overviewfiles_options($course);
 110 if (!empty($course)) {
 111     // Add context for editor.
 112     $editoroptions['context'] = $coursecontext;
 113     $editoroptions['subdirs'] = file_area_contains_subdirs($coursecontext, 'course', 'summary', 0);
 114     $course = file_prepare_standard_editor($course, 'summary', $editoroptions, $coursecontext, 'course', 'summary', 0);
 115     if ($overviewfilesoptions) {
 116         file_prepare_standard_filemanager($course, 'overviewfiles', $overviewfilesoptions, $coursecontext, 'course', 'overviewfiles', 0);
 117     }
 118
 119     // Inject current aliases.
 120     $aliases = $DB->get_records('role_names', array('contextid'=>$coursecontext->id));
 121     foreach($aliases as $alias) {
 122         $course->{'role_'.$alias->roleid} = $alias->name;
 123     }
 124
 125     // Populate course tags.
 126     $course->tags = core_tag_tag::get_item_tags_array('core', 'course', $course->id);
 127
 128 } else {
 129     // Editor should respect category context if course context is not set.
 130     $editoroptions['context'] = $catcontext;
 131     $editoroptions['subdirs'] = 0;
 132     $course = file_prepare_standard_editor($course, 'summary', $editoroptions, null, 'course', 'summary', null);
 133     if ($overviewfilesoptions) {
 134         file_prepare_standard_filemanager($course, 'overviewfiles', $overviewfilesoptions, null, 'course', 'overviewfiles', 0);
 135     }
 136 }
 137
 138 // First create the form.
 139 $args = array(
 140     'course' => $course,
 141     'category' => $category,
 142     'editoroptions' => $editoroptions,
 143     'returnto' => $returnto,
 144     'returnurl' => $returnurl
 145 );
 146 $editform = new course_edit_form(null, $args);
 147 if ($editform->is_cancelled()) {
 148     // The form has been cancelled, take them back to what ever the return to is.
 149     redirect($returnurl);
 150 } else if ($data = $editform->get_data()) {
 151     // Process data if submitted.
 152     if (empty($course->id)) {
 153         // In creating the course.
 154         $course = create_course($data, $editoroptions);
 155
 156         // Get the context of the newly created course.
 157         $context = context_course::instance($course->id, MUST_EXIST);
 158
 159         if (!empty($CFG->creatornewroleid) and !is_viewing($context, NULL, 'moodle/role:assign') and !is_enrolled($context, NULL, 'moodle/role:assign')) {
 160             // Deal with course creators - enrol them internally with default role.
 161             enrol_try_internal_enrol($course->id, $USER->id, $CFG->creatornewroleid);
 162         }
 163
 164         // The URL to take them to if they chose save and display.
 165         $courseurl = new moodle_url('/course/view.php', array('id' => $course->id));
 166
 167         // If they choose to save and display, and they are not enrolled take them to the enrolments page instead.
 168         if (!is_enrolled($context) && isset($data->saveanddisplay)) {
 169             // Redirect to manual enrolment page if possible.
 170             $instances = enrol_get_instances($course->id, true);
 171             foreach($instances as $instance) {
 172                 if ($plugin = enrol_get_plugin($instance->enrol)) {
 173                     if ($plugin->get_manual_enrol_link($instance)) {
 174                         // We know that the ajax enrol UI will have an option to enrol.
 175                         $courseurl = new moodle_url('/enrol/users.php', array('id' => $course->id, 'newcourse' => 1));
 176                         break;
 177                     }
 178                 }
 179             }
 180         }
 181     } else {
 182         // Save any changes to the files used in the editor.
 183         update_course($data, $editoroptions);
 184         // Set the URL to take them too if they choose save and display.
 185         $courseurl = new moodle_url('/course/view.php', array('id' => $course->id));
 186     }
 187
 188     if (isset($data->saveanddisplay)) {
 189         // Redirect user to newly created/updated course.
 190         redirect($courseurl);
 191     } else {
 192         // Save and return. Take them back to wherever.
 193         redirect($returnurl);
 194     }
 195 }
 196
 197 // Print the form.
 198
 199 $site = get_site();
 200
 201 $streditcoursesettings = get_string("editcoursesettings");
 202 $straddnewcourse = get_string("addnewcourse");
 203 $stradministration = get_string("administration");
 204 $strcategories = get_string("categories");
 205
 206 if (!empty($course->id)) {
 207     // Navigation note: The user is editing a course, the course will exist within the navigation and settings.
 208     // The navigation will automatically find the Edit settings page under course navigation.
 209     $pagedesc = $streditcoursesettings;
 210     $title = $streditcoursesettings;
 211     $fullname = $course->fullname;
 212 } else {
 213     // The user is adding a course, this page isn't presented in the site navigation/admin.
 214     // Adding a new course is part of course category management territory.
 215     // We'd prefer to use the management interface URL without args.
 216     $managementurl = new moodle_url('/course/management.php');
 217     // These are the caps required in order to see the management interface.
 218     $managementcaps = array('moodle/category:manage', 'moodle/course:create');
 219     if ($categoryid && !has_any_capability($managementcaps, context_system::instance())) {
 220         // If the user doesn't have either manage caps then they can only manage within the given category.
 221         $managementurl->param('categoryid', $categoryid);
 222     }
 223     // Because the course category management interfaces are buried in the admin tree and that is loaded by ajax
 224     // we need to manually tell the navigation we need it loaded. The second arg does this.
 225     navigation_node::override_active_url($managementurl, true);
 226
 227     $pagedesc = $straddnewcourse;
 228     $title = "$site->shortname: $straddnewcourse";
 229     $fullname = $site->fullname;
 230     $PAGE->navbar->add($pagedesc);
 231 }
 232
 233 $PAGE->set_title($title);
 234 $PAGE->set_heading($fullname);
 235
 236 echo $OUTPUT->header();
 237 echo $OUTPUT->heading($pagedesc);
 238
 239 $editform->display();
 240
 241 echo $OUTPUT->footer();