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   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  
  33  $PAGE->set_pagelayout('admin');
  34  if ($id) {
  35      $pageparams = array('id' => $id);
  36  } else {
  37      $pageparams = array('category' => $categoryid);
  38  }
  39  $PAGE->set_url('/course/edit.php', $pageparams);
  40  
  41  // Basic access control checks.
  42  if ($id) {
  43      // Editing course.
  44      if ($id == SITEID){
  45          // Don't allow editing of  'site course' using this from.
  46          print_error('cannoteditsiteform');
  47      }
  48  
  49      // Login to the course and retrieve also all fields defined by course format.
  50      $course = get_course($id);
  51      require_login($course);
  52      $course = course_get_format($course)->get_course();
  53  
  54      $category = $DB->get_record('course_categories', array('id'=>$course->category), '*', MUST_EXIST);
  55      $coursecontext = context_course::instance($course->id);
  56      require_capability('moodle/course:update', $coursecontext);
  57  
  58  } else if ($categoryid) {
  59      // Creating new course in this category.
  60      $course = null;
  61      require_login();
  62      $category = $DB->get_record('course_categories', array('id'=>$categoryid), '*', MUST_EXIST);
  63      $catcontext = context_coursecat::instance($category->id);
  64      require_capability('moodle/course:create', $catcontext);
  65      $PAGE->set_context($catcontext);
  66  
  67  } else {
  68      require_login();
  69      print_error('needcoursecategroyid');
  70  }
  71  
  72  // Prepare course and the editor.
  73  $editoroptions = array('maxfiles' => EDITOR_UNLIMITED_FILES, 'maxbytes'=>$CFG->maxbytes, 'trusttext'=>false, 'noclean'=>true);
  74  $overviewfilesoptions = course_overviewfiles_options($course);
  75  if (!empty($course)) {
  76      // Add context for editor.
  77      $editoroptions['context'] = $coursecontext;
  78      $editoroptions['subdirs'] = file_area_contains_subdirs($coursecontext, 'course', 'summary', 0);
  79      $course = file_prepare_standard_editor($course, 'summary', $editoroptions, $coursecontext, 'course', 'summary', 0);
  80      if ($overviewfilesoptions) {
  81          file_prepare_standard_filemanager($course, 'overviewfiles', $overviewfilesoptions, $coursecontext, 'course', 'overviewfiles', 0);
  82      }
  83  
  84      // Inject current aliases.
  85      $aliases = $DB->get_records('role_names', array('contextid'=>$coursecontext->id));
  86      foreach($aliases as $alias) {
  87          $course->{'role_'.$alias->roleid} = $alias->name;
  88      }
  89  
  90  } else {
  91      // Editor should respect category context if course context is not set.
  92      $editoroptions['context'] = $catcontext;
  93      $editoroptions['subdirs'] = 0;
  94      $course = file_prepare_standard_editor($course, 'summary', $editoroptions, null, 'course', 'summary', null);
  95      if ($overviewfilesoptions) {
  96          file_prepare_standard_filemanager($course, 'overviewfiles', $overviewfilesoptions, null, 'course', 'overviewfiles', 0);
  97      }
  98  }
  99  
 100  // First create the form.
 101  $editform = new course_edit_form(NULL, array('course'=>$course, 'category'=>$category, 'editoroptions'=>$editoroptions, 'returnto'=>$returnto));
 102  if ($editform->is_cancelled()) {
 103          switch ($returnto) {
 104              case 'category':
 105                  $url = new moodle_url($CFG->wwwroot.'/course/index.php', array('categoryid' => $categoryid));
 106                  break;
 107              case 'catmanage':
 108                  $url = new moodle_url($CFG->wwwroot.'/course/management.php', array('categoryid' => $categoryid));
 109                  break;
 110              case 'topcatmanage':
 111                  $url = new moodle_url($CFG->wwwroot.'/course/management.php');
 112                  break;
 113              case 'topcat':
 114                  $url = new moodle_url($CFG->wwwroot.'/course/');
 115                  break;
 116              default:
 117                  if (!empty($course->id)) {
 118                      $url = new moodle_url($CFG->wwwroot.'/course/view.php', array('id'=>$course->id));
 119                  } else {
 120                      $url = new moodle_url($CFG->wwwroot.'/course/');
 121                  }
 122                  break;
 123          }
 124          redirect($url);
 125  
 126  } else if ($data = $editform->get_data()) {
 127      // Process data if submitted.
 128      if (empty($course->id)) {
 129          // In creating the course.
 130          $course = create_course($data, $editoroptions);
 131  
 132          // Get the context of the newly created course.
 133          $context = context_course::instance($course->id, MUST_EXIST);
 134  
 135          if (!empty($CFG->creatornewroleid) and !is_viewing($context, NULL, 'moodle/role:assign') and !is_enrolled($context, NULL, 'moodle/role:assign')) {
 136              // Deal with course creators - enrol them internally with default role.
 137              enrol_try_internal_enrol($course->id, $USER->id, $CFG->creatornewroleid);
 138          }
 139          if (!is_enrolled($context)) {
 140              // Redirect to manual enrolment page if possible.
 141              $instances = enrol_get_instances($course->id, true);
 142              foreach($instances as $instance) {
 143                  if ($plugin = enrol_get_plugin($instance->enrol)) {
 144                      if ($plugin->get_manual_enrol_link($instance)) {
 145                          // We know that the ajax enrol UI will have an option to enrol.
 146                          redirect(new moodle_url('/enrol/users.php', array('id'=>$course->id)));
 147                      }
 148                  }
 149              }
 150          }
 151      } else {
 152          // Save any changes to the files used in the editor.
 153          update_course($data, $editoroptions);
 154      }
 155  
 156      // Redirect user to newly created/updated course.
 157      redirect(new moodle_url('/course/view.php', array('id' => $course->id)));
 158  }
 159  
 160  // Print the form.
 161  
 162  $site = get_site();
 163  
 164  $streditcoursesettings = get_string("editcoursesettings");
 165  $straddnewcourse = get_string("addnewcourse");
 166  $stradministration = get_string("administration");
 167  $strcategories = get_string("categories");
 168  
 169  if (!empty($course->id)) {
 170      // Navigation note: The user is editing a course, the course will exist within the navigation and settings.
 171      // The navigation will automatically find the Edit settings page under course navigation.
 172      $pagedesc = $streditcoursesettings;
 173      $title = $streditcoursesettings;
 174      $fullname = $course->fullname;
 175  } else {
 176      // The user is adding a course, this page isn't presented in the site navigation/admin.
 177      // Adding a new course is part of course category management territory.
 178      // We'd prefer to use the management interface URL without args.
 179      $managementurl = new moodle_url('/course/management.php');
 180      // These are the caps required in order to see the management interface.
 181      $managementcaps = array('moodle/category:manage', 'moodle/course:create');
 182      if ($categoryid && !has_any_capability($managementcaps, context_system::instance())) {
 183          // If the user doesn't have either manage caps then they can only manage within the given category.
 184          $managementurl->param('categoryid', $categoryid);
 185      }
 186      // Because the course category management interfaces are buried in the admin tree and that is loaded by ajax
 187      // we need to manually tell the navigation we need it loaded. The second arg does this.
 188      navigation_node::override_active_url($managementurl, true);
 189  
 190      $pagedesc = $straddnewcourse;
 191      $title = "$site->shortname: $straddnewcourse";
 192      $fullname = $site->fullname;
 193      $PAGE->navbar->add($pagedesc);
 194  }
 195  
 196  $PAGE->set_title($title);
 197  $PAGE->set_heading($fullname);
 198  
 199  echo $OUTPUT->header();
 200  echo $OUTPUT->heading($pagedesc);
 201  
 202  $editform->display();
 203  
 204  echo $OUTPUT->footer();