course/edit.php

   1 <?php // $Id$
   2       // Edit course settings
   3
   4     require_once("../config.php");
   5     require_once("lib.php");
   6     require_once("$CFG->libdir/blocklib.php");
   7     require_once("$CFG->dirroot/enrol/enrol.class.php");
   8
   9     $id       = optional_param('id', 0, PARAM_INT); // course id
  10     $category = optional_param('category', 0, PARAM_INT); // possible default category
  11
  12     require_login();
  13
  14     $disable_meta = false;
  15     $focus = "";
  16
  17     if ($id) {
  18         if (! $course = get_record("course", "id", $id)) {
  19             error("Course ID was incorrect");
  20         }
  21
  22         if (!isteacheredit($course->id)) {
  23             error("You do not currently have editing privileges!");
  24         }
  25
  26         if (course_in_meta($course)) {
  27             $disable_meta = get_string('metaalreadyinmeta');
  28         }
  29         else if ($course->metacourse) {
  30             if (count_records("course_meta","parent_course",$course->id) > 0) {
  31                 $disable_meta = get_string('metaalreadyhascourses');
  32             }
  33         }
  34         else {
  35             if (count_records("user_students","course",$course->id) > 0) {
  36                 $disable_meta = get_string('metaalreadyhasenrolments');
  37             }
  38         }
  39     } else {  // Admin is creating a new course
  40
  41         if (!iscreator()) {
  42             error("You do not currently have course creation privileges!");
  43         }
  44
  45         $course = NULL;
  46     }
  47
  48     if (! $site = get_site()) {
  49         redirect("$CFG->wwwroot/$CFG->admin/index.php");
  50     }
  51
  52
  53 /// If data submitted, then process and store.
  54
  55     if ($form = data_submitted() and confirm_sesskey()) {
  56
  57         if (empty($course)) {
  58             check_for_restricted_user($USER->username, "$CFG->wwwroot");
  59         } else {
  60             check_for_restricted_user($USER->username, "$CFG->wwwroot/course/view.php?id=$course->id");
  61         }
  62
  63         $form->startdate = make_timestamp($form->startyear, $form->startmonth, $form->startday);
  64         $form->category = clean_param($form->category, PARAM_INT);
  65
  66         if (empty($form->enrolstartdisabled)) {
  67             $form->enrolstartdate = make_timestamp($form->enrolstartyear, $form->enrolstartmonth, $form->enrolstartday);
  68         } else {
  69             $form->enrolstartdate = 0;
  70         }
  71
  72         if (empty($form->enrolenddisabled)) {
  73             $form->enrolenddate = make_timestamp($form->enrolendyear, $form->enrolendmonth, $form->enrolendday);
  74         } else {
  75             $form->enrolenddate = 0;
  76         }
  77
  78         $form->format = optional_param('format', 'social', PARAM_ALPHA);
  79
  80         validate_form($course, $form, $err);
  81
  82         if (count($err) == 0) {
  83
  84             $allowedmods = array();
  85             if (!empty($form->allowedmods)) {
  86                 $allowedmods = $form->allowedmods;
  87                 unset($form->allowedmods);
  88             }
  89
  90             $form->timemodified = time();
  91
  92             if (!empty($course)) {
  93                 // Test for and remove blocks which aren't appropriate anymore
  94                 $page = page_create_object(PAGE_COURSE_VIEW, $course->id);
  95                 blocks_remove_inappropriate($page);
  96
  97                 // Update with the new data
  98                 if (update_record('course', $form)) {
  99                     add_to_log($course->id, "course", "update", "edit.php?id=$id", "");
 100                     if (isadmin()) {
 101                         $course->restrictmodules = $form->restrictmodules;
 102                         update_restricted_mods($course,$allowedmods);
 103                     }
 104                     fix_course_sortorder();
 105                     redirect($page->url_get_full(), get_string('changessaved'));
 106                 } else {
 107                     error("Serious Error! Could not update the course record! (id = $form->id)");
 108                 }
 109             } else {
 110                 $form->timecreated = time();
 111
 112                 // place at beginning of category
 113                 fix_course_sortorder();
 114                 $form->sortorder = get_field_sql("SELECT min(sortorder)-1 FROM {$CFG->prefix}course WHERE category=$form->category");
 115                 if (empty($form->sortorder)) {
 116                     $form->sortorder = 100;
 117                 }
 118
 119                 if ($newcourseid = insert_record('course', $form)) {  // Set up new course
 120
 121                     // Setup the blocks
 122                     $page = page_create_object(PAGE_COURSE_VIEW, $newcourseid);
 123                     blocks_repopulate_page($page); // Return value not checked because you can always edit later
 124
 125                     if (isadmin()) {
 126                         $course = get_record("course","id",$newcourseid);
 127                         update_restricted_mods($course,$allowedmods);
 128                     }
 129
 130                     $section = NULL;
 131                     $section->course = $newcourseid;   // Create a default section.
 132                     $section->section = 0;
 133                     $section->id = insert_record("course_sections", $section);
 134
 135                     fix_course_sortorder();
 136                     add_to_log(SITEID, "course", "new", "view.php?id=$newcourseid", "$form->fullname (ID $newcourseid)");
 137
 138                     if (isadmin()) { // Redirect admin to add teachers
 139                         redirect("teacher.php?id=$newcourseid", get_string("changessaved"));
 140
 141                     } else {         // Add current teacher and send to course
 142
 143                         $newteacher = NULL;
 144                         $newteacher->userid = $USER->id;
 145                         $newteacher->course = $newcourseid;
 146                         $newteacher->authority = 1;   // First teacher is the main teacher
 147                         $newteacher->editall = 1;     // Course creator can edit their own course
 148                         $newteacher->enrol = 'manual';// enrol the teacher too - bug #6120
 149
 150                         if (!$newteacher->id = insert_record("user_teachers", $newteacher)) {
 151                             error("Could not add you to this new course!");
 152                         }
 153
 154                         $USER->teacher[$newcourseid] = true;
 155                         $USER->teacheredit[$newcourseid] = true;
 156
 157                         fix_course_sortorder();
 158
 159                         redirect("view.php?id=$newcourseid", get_string("changessaved"));
 160                     }
 161
 162                 } else {
 163                     error("Serious Error! Could not create the new course!");
 164                 }
 165             }
 166             die;
 167         } else {
 168             foreach ($err as $key => $value) {
 169                 $focus = "form.$key";
 170             }
 171
 172         }
 173     }
 174
 175 /// Otherwise fill and print the form.
 176
 177     if (empty($form)) {
 178         if (!empty($course)) {
 179             $form = $course;
 180         } else {
 181             $form->startdate = time() + 3600 * 24;
 182             $form->fullname = get_string("defaultcoursefullname");
 183             $form->shortname = get_string("defaultcourseshortname");
 184             $form->summary = get_string("defaultcoursesummary");
 185             $form->format = "weeks";
 186             $form->password = "";
 187             $form->guest = 0;
 188             $form->numsections = 10;
 189             $form->idnumber = '';
 190             $form->cost = '';
 191             $form->currency = empty($CFG->enrol_currency) ? 'USD' : $CFG->enrol_currency;
 192             $form->newsitems = 5;
 193             $form->showgrades = 1;
 194             $form->groupmode = 0;
 195             $form->groupmodeforce = 0;
 196             $form->category = $category;
 197             $form->id = "";
 198             $form->visible = 1;
 199
 200             if (current_language() == $CFG->lang) {
 201                 $form->teacher  = $site->teacher;
 202                 $form->teachers = $site->teachers;
 203                 $form->student  = $site->student;
 204                 $form->students = $site->students;
 205             } else {
 206                 $form->teacher = get_string("defaultcourseteacher");
 207                 $form->teachers = get_string("defaultcourseteachers");
 208                 $form->student = get_string("defaultcoursestudent");
 209                 $form->students = get_string("defaultcoursestudents");
 210             }
 211         }
 212     } else {
 213         $form = stripslashes_safe($form);
 214     }
 215
 216     // !! no db access using data from $form beyond this point !!
 217
 218     $form->categories = get_records_select_menu("course_categories", "", "name", "id,name");
 219
 220     $courseformats = get_list_of_plugins("course/format");
 221     $form->courseformats = array();
 222
 223     foreach ($courseformats as $courseformat) {
 224         $form->courseformats["$courseformat"] = get_string("format$courseformat");
 225     }
 226
 227     if (empty($allowedmods)) {
 228         $allowedmods = array();
 229         if (!empty($course)) {
 230             if ($am = get_records("course_allowed_modules","course",$course->id)) {
 231                 foreach ($am as $m) {
 232                     $allowedmods[] = $m->module;
 233                 }
 234             } else {
 235                 if (empty($course->restrictmodules)) {
 236                     $allowedmods = explode(',',$CFG->defaultallowedmodules);
 237                 } // it'll be greyed out but we want these by default anyway.
 238             }
 239         } else {
 240             if ($CFG->restrictmodulesfor == 'all') {
 241                 $allowedmods = explode(',',$CFG->defaultallowedmodules);
 242                 if (!empty($CFG->restrictbydefault)) {
 243                     $form->restrictmodules = 1;
 244                 }
 245             }
 246         }
 247     }
 248
 249
 250     $usehtmleditor = can_use_html_editor();
 251
 252     $streditcoursesettings = get_string("editcoursesettings");
 253     $straddnewcourse = get_string("addnewcourse");
 254     $stradministration = get_string("administration");
 255     $strcategories = get_string("categories");
 256
 257     if (!empty($course)) {
 258         print_header($streditcoursesettings, "$course->fullname",
 259                      "<a href=\"$CFG->wwwroot/course/view.php?id=$course->id\">$course->shortname</a>
 260                       -> $streditcoursesettings", $focus);
 261     } else {
 262         print_header("$site->shortname: $straddnewcourse", "$site->fullname",
 263                      "<a href=\"../$CFG->admin/index.php\">$stradministration</a> -> ".
 264                      "<a href=\"index.php\">$strcategories</a> -> $straddnewcourse", $focus);
 265     }
 266
 267     $form->sesskey = !empty($USER->id) ? $USER->sesskey : '';
 268
 269     print_heading($streditcoursesettings);
 270     print_simple_box_start("center");
 271     include("edit.html");
 272     print_simple_box_end();
 273
 274     if ($usehtmleditor) {
 275         use_html_editor("summary");
 276     }
 277
 278     print_footer($course);
 279
 280     exit;
 281
 282 /// Functions /////////////////////////////////////////////////////////////////
 283
 284 function validate_form($course, &$form, &$err) {
 285
 286     if (empty($form->enrolenddisabled) && $form->enrolenddate <= $form->enrolstartdate) {
 287         $err["enroldate"] = get_string("enrolenddaterror");
 288     }
 289
 290     if (empty($form->fullname))
 291         $err["fullname"] = get_string("missingfullname");
 292
 293     if (empty($form->shortname))
 294         $err["shortname"] = get_string("missingshortname");
 295
 296     if ($foundcourses = get_records("course", "shortname", $form->shortname)) {
 297         if (!empty($course->id)) {
 298             unset($foundcourses[$course->id]);
 299         }
 300         if (!empty($foundcourses)) {
 301             foreach ($foundcourses as $foundcourse) {
 302                 $foundcoursenames[] = $foundcourse->fullname;
 303             }
 304             $foundcoursenamestring = addslashes(implode(',', $foundcoursenames));
 305
 306             $err["shortname"] = get_string("shortnametaken", "", $foundcoursenamestring);
 307         }
 308     }
 309
 310     if (empty($form->summary))
 311         $err["summary"] = get_string("missingsummary");
 312
 313     if (empty($form->teacher))
 314         $err["teacher"] = get_string("missingteacher");
 315
 316     if (empty($form->student))
 317         $err["student"] = get_string("missingstudent");
 318
 319     if (! $form->category)
 320         $err["category"] = get_string("missingcategory");
 321
 322     return;
 323 }
 324
 325
 326 ?>