moodle/course/delete.php

118 lines
3.9 KiB
PHP

<?PHP // $Id$
require("../config.php");
optional_variable($id); // course id
optional_variable($delete); // delete confirmation
require_login();
if (!isadmin()) {
error("You must be an administrator to use this page.");
}
if (!$id) {
print_header("Delete a course", "Delete a course",
"<A HREF=\"$CFG->wwwroot/admin\">Admin</A> -> Delete a course");
if ($courses = get_records_sql("SELECT * from course WHERE category > 0 ORDER BY fullname")) {
print_heading("Choose a course to delete");
print_simple_box_start("CENTER");
foreach ($courses as $course) {
echo "<A HREF=\"delete.php?id=$course->id\">$course->fullname</A><BR>";
}
print_simple_box_end();
} else {
print_heading(get_string("nocoursesyet"));
print_continue("$CFG->wwwroot/admin/");
}
print_footer();
exit;
}
if (! $course = get_record("course", "id", $id)) {
error("Course ID was incorrect (can't find it)");
}
if (! $delete) {
print_header("Delete $course->shortname ?", "Delete $course->shortname ?",
"<A HREF=\"$CFG->wwwroot/admin\">Admin</A> -> Delete $course->shortname ?");
notice_yesno("Are you absolutely sure you want to completely delete this course and all the data it contains?<BR><BR>$course->fullname", "delete.php?id=$course->id&delete=".md5($course->timemodified), "delete.php");
exit;
}
if ($delete != md5($course->timemodified)) {
error("The check variable was wrong - try again");
}
// OK checks done, delete the course now.
print_header("Deleting $course->shortname", "Deleting $course->shortname",
"<A HREF=\"$CFG->wwwroot/admin\">Admin</A> -> Deleting $course->shortname");
print_heading("Deleting $course->fullname");
// First delete every instance of every module
if ($allmods = get_records_sql("SELECT * FROM modules") ) {
foreach ($allmods as $mod) {
$modname = $mod->name;
$modfile = "../mod/$modname/lib.php";
$moddelete = $modname."_delete_instance";
$count=0;
if (file_exists($modfile)) {
include_once($modfile);
if (function_exists($moddelete)) {
if ($instances = get_records($modname, "course", $course->id)) {
foreach ($instances as $instance) {
if ($moddelete($instance->id)) {
$count++;
} else {
notify("Could not delete $modname instance $instance->id ($instance->name)");
}
}
}
} else {
notify("Function $moddelete() doesn't exist!");
}
}
notify("Deleted $count instances of $modname");
}
} else {
error("No modules are installed!");
}
// Delete any user stuff
if (delete_records("user_students", "course", $course->id)) {
notify("Deleted student enrolments");
}
if (delete_records("user_teachers", "course", $course->id)) {
notify("Deleted teachers");
}
// Delete logs
if (delete_records("log", "course", $course->id)) {
notify("Deleted logs");
}
// Delete any course stuff
if (delete_records("course_sections", "course", $course->id)) {
notify("Deleted course sections");
}
if (delete_records("course_modules", "course", $course->id)) {
notify("Deleted course modules");
}
if (delete_records("course", "id", $course->id)) {
notify("Deleted the main course record");
}
print_heading("$course->shortname has been completely deleted");
print_continue("delete.php");
print_footer();
?>