course/edit.php

   1 <?php // $Id$
   2       // Edit course settings
   3
   4     require_once('../config.php');
   5     require_once($CFG->dirroot.'/enrol/enrol.class.php');
   6     require_once($CFG->libdir.'/blocklib.php');
   7     require_once('lib.php');
   8     require_once('edit_form.php');
   9
  10     $id         = optional_param('id', 0, PARAM_INT);       // course id
  11     $categoryid = optional_param('category', 0, PARAM_INT); // course category - can be changed in edit form
  12
  13     require_login();
  14
  15 /// basic access control checks
  16     if ($id) { // editing course
  17         if (!$course = get_record('course', 'id', $id)) {
  18             error('Course ID was incorrect');
  19         }
  20         $category = get_record('course_categories', 'id', $course->category);
  21         require_capability('moodle/course:update', get_context_instance(CONTEXT_COURSE, $course->id));
  22
  23     } else if ($categoryid) { // creating new course in this category
  24         $course = null;
  25         if (!$category = get_record('course_categories', 'id', $categoryid)) {
  26             error('Category ID was incorrect');
  27         }
  28         require_capability('moodle/course:create', get_context_instance(CONTEXT_COURSECAT, $category->id));
  29
  30     } else {
  31         error('Either course id or category must be specified');
  32     }
  33
  34 /// prepare course
  35 if (!empty($course)) {
  36     $allowedmods = array();
  37     if (!empty($course)) {
  38         if ($am = get_records('course_allowed_modules','course',$course->id)) {
  39             foreach ($am as $m) {
  40                 $allowedmods[] = $m->module;
  41             }
  42         } else {
  43             if (empty($course->restrictmodules)) {
  44                 $allowedmods = explode(',',$CFG->defaultallowedmodules);
  45             } // it'll be greyed out but we want these by default anyway.
  46         }
  47         $course->allowedmods = $allowedmods;
  48
  49         if ($course->enrolstartdate){
  50             $course->enrolstartdisabled = 0;
  51         }
  52
  53         if ($course->enrolenddate) {
  54             $course->enrolenddisabled = 0;
  55         }
  56     }
  57
  58 }
  59
  60
  61 /// first create the form
  62     $editform = new course_edit_form('edit.php', compact('course', 'category'));
  63     // now override defaults if course already exists
  64     if (!empty($course)) {
  65         $editform->set_data($course);
  66     }
  67     if ($editform->is_cancelled()){
  68         if (empty($course)) {
  69             redirect($CFG->wwwroot);
  70         } else {
  71             redirect($CFG->wwwroot.'/course/view.php?id='.$course->id);
  72         }
  73
  74     } elseif ($data = $editform->get_data()) {
  75 /// process data if submitted
  76
  77         //preprocess data
  78         if ($data->enrolstartdisabled){
  79             $data->enrolstartdate = 0;
  80         }
  81
  82         if ($data->enrolenddisabled) {
  83             $data->enrolenddate = 0;
  84         }
  85
  86         $data->timemodified = time();
  87
  88         if (empty($course)) {
  89             create_course($data);
  90         } else {
  91             update_course($data);
  92         }
  93     }
  94
  95
  96 ///print the form
  97
  98     $site = get_site();
  99
 100     $streditcoursesettings = get_string("editcoursesettings");
 101     $straddnewcourse = get_string("addnewcourse");
 102     $stradministration = get_string("administration");
 103     $strcategories = get_string("categories");
 104
 105     if (!empty($course)) {
 106         print_header($streditcoursesettings, "$course->fullname",
 107                      "<a href=\"$CFG->wwwroot/course/view.php?id=$course->id\">$course->shortname</a>
 108                       -> $streditcoursesettings", $editform->focus());
 109     } else {
 110         print_header("$site->shortname: $straddnewcourse", "$site->fullname",
 111                      "<a href=\"$CFG->wwwroot/$CFG->admin/index.php\">$stradministration</a> -> ".
 112                      "<a href=\"index.php\">$strcategories</a> -> $straddnewcourse", $editform->focus());
 113     }
 114
 115     print_heading($streditcoursesettings);
 116     $editform->display();
 117     print_footer($course);
 118
 119     die;
 120
 121
 122 /// internal functions
 123
 124 function create_course($data) {
 125     global $CFG, $USER;
 126
 127     // preprocess allowed mods
 128     $allowedmods = empty($data->allowedmods) ? array() : $data->allowedmods;
 129     unset($data->allowedmods);
 130     if (!has_capability('moodle/site:config', get_context_instance(CONTEXT_SYSTEM))) {
 131         if ($CFG->restrictmodulesfor == 'all') {
 132             $data->restrictmodules = 1;
 133         } else {
 134             $data->restrictmodules = 0;
 135         }
 136     }
 137
 138
 139     $data->timecreated = time();
 140
 141     // place at beginning of category
 142     fix_course_sortorder();
 143     $data->sortorder = get_field_sql("SELECT min(sortorder)-1 FROM {$CFG->prefix}course WHERE category=$data->category");
 144     if (empty($data->sortorder)) {
 145         $data->sortorder = 100;
 146     }
 147
 148     if ($newcourseid = insert_record('course', $data)) {  // Set up new course
 149
 150         $course = get_record('course', 'id', $newcourseid);
 151
 152         // Setup the blocks
 153         $page = page_create_object(PAGE_COURSE_VIEW, $course->id);
 154         blocks_repopulate_page($page); // Return value not checked because you can always edit later
 155
 156         if (has_capability('moodle/site:config', get_context_instance(CONTEXT_SYSTEM))) {
 157             update_restricted_mods($course, $allowedmods);
 158         }
 159
 160         $section = new object();
 161         $section->course = $course->id;   // Create a default section.
 162         $section->section = 0;
 163         $section->id = insert_record('course_sections', $section);
 164
 165         fix_course_sortorder();
 166         add_to_log(SITEID, "course", "new", "view.php?id=$course->id", "$data->fullname (ID $course->id)")        ;
 167         $context = get_context_instance(CONTEXT_COURSE, $course->id);
 168
 169         if ($data->metacourse and has_capability('moodle/course:managemetacourse', $context)) { // Redirect users with metacourse capability to student import
 170             redirect($CFG->wwwroot."/course/importstudents.php?id=$course->id");
 171
 172         } else if (has_capability('moodle/role:assign', $context)) { // Redirect users with assign capability to assign users to different roles
 173             redirect($CFG->wwwroot."/$CFG->admin/roles/assign.php?contextid=$context->id");
 174
 175         } else {         // Add current teacher and send to course
 176             // find a role with legacy:edittingteacher
 177             if ($teacherroles = get_roles_with_capability('moodle/legacy:editingteacher', CAP_ALLOW, $context)) {
 178                 // assign the role to this user
 179                 $teachereditrole = array_shift($teacherroles);
 180                 role_assign($teachereditrole->id, $USER->id, 0, $context->id);
 181             }
 182             redirect($CFG->wwwroot."/course/view.php?id=$course->id");
 183         }
 184
 185     } else {
 186         error("Serious Error! Could not create the new course!");
 187     }
 188     die;
 189 }
 190
 191 function update_course($data) {
 192     global $USER, $CFG;
 193
 194     // preprocess allowed mods
 195     $allowedmods = empty($data->allowedmods) ? array() : $data->allowedmods;
 196     unset($data->allowedmods);
 197     if (!has_capability('moodle/site:config', get_context_instance(CONTEXT_SYSTEM))) {
 198         unset($data->restrictmodules);
 199     }
 200
 201     $oldcourse = get_record('course', 'id', $data->id); // should not fail, already tested above
 202     if (!has_capability('moodle/course:create', get_context_instance(CONTEXT_COURSECAT, $oldcourse->category))
 203       or !has_capability('moodle/course:create', get_context_instance(CONTEXT_COURSECAT, $data->category))) {
 204         // can not move to new category, keep the old one
 205         unset($data->category);
 206     }
 207
 208     // Update with the new data
 209     if (update_record('course', $data)) {
 210
 211         $course = get_record('course', 'id', $data->id);
 212
 213         add_to_log($course->id, "course", "update", "edit.php?id=$course->id", "");
 214         if (has_capability('moodle/site:config', get_context_instance(CONTEXT_SYSTEM))) {
 215             update_restricted_mods($course, $allowedmods);
 216         }
 217         fix_course_sortorder();
 218
 219         // Test for and remove blocks which aren't appropriate anymore
 220         $page = page_create_object(PAGE_COURSE_VIEW, $course->id);
 221         blocks_remove_inappropriate($page);
 222
 223         redirect($CFG->wwwroot."/course/view.php?id=$course->id");
 224
 225     } else {
 226         error("Serious Error! Could not update the course record! (id = $form->id)");
 227     }
 228     die;
 229 }
 230
 231 ?>