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First pass at a function to empty a course remove_course_userdata()

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To be called from course/empty.php
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moodler 2004-08-01 07:34:39 +00:00
parent d43730d8ab
commit 3831de5237
1 changed files with 110 additions and 0 deletions
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110
lib/moodlelib.php
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@ -1088,6 +1088,116 @@ function remove_course_contents($courseid, $showfeedback=true) {
}
function remove_course_userdata($courseid, $showfeedback=true,
$removestudents=true, $removeteachers=false, $removegroups=true,
$removeevents=true, $removelogs=false) {
/// This function will empty a course of USER data as much as
/// possible. It will retain the activities and the structure
/// of the course.
global $CFG, $THEME, $USER, $SESSION;
$result = true;
if (! $course = get_record("course", "id", $courseid)) {
error("Course ID was incorrect (can't find it)");
}
$strdeleted = get_string("deleted");
// Look in every instance of every module for data to delete
if ($allmods = get_records("modules") ) {
foreach ($allmods as $mod) {
$modname = $mod->name;
$modfile = "$CFG->dirroot/mod/$modname/lib.php";
$moddeleteuserdata = $modname."_delete_userdata"; // Function to delete user data
$count=0;
if (file_exists($modfile)) {
@include_once($modfile);
if (function_exists($moddeleteuserdata)) {
$moddeleteuserdata($course, $showfeedback);
}
}
}
} else {
error("No modules are installed!");
}
// Delete other stuff
if ($removestudents) {
/// Delete student enrolments
if (delete_records("user_students", "course", $course->id)) {
if ($showfeedback) {
notify("$strdeleted user_students");
}
} else {
$result = false;
}
/// Delete group members (but keep the groups)
if ($groups = get_records("groups", "courseid", $course->id)) {
foreach ($groups as $group) {
if (delete_records("groups_members", "groupid", $group->id)) {
if ($showfeedback) {
notify("$strdeleted groups_members");
}
} else {
$result = false;
}
}
}
}
if ($removeteachers) {
if (delete_records("user_teachers", "course", $course->id)) {
if ($showfeedback) {
notify("$strdeleted user_teachers");
}
} else {
$result = false;
}
}
if ($removegroups) {
if ($groups = get_records("groups", "courseid", $course->id)) {
foreach ($groups as $group) {
if (delete_records("groups", "id", $group->id)) {
if ($showfeedback) {
notify("$strdeleted groups");
}
} else {
$result = false;
}
}
}
}
if ($removeevents) {
if (delete_records("event", "courseid", $course->id)) {
if ($showfeedback) {
notify("$strdeleted event");
}
} else {
$result = false;
}
}
if ($removelogs) {
if (delete_records("log", "course", $course->id)) {
if ($showfeedback) {
notify("$strdeleted log");
}
} else {
$result = false;
}
}
return $result;
}
/// GROUPS /////////////////////////////////////////////////////////