function restore_create_metacourse($restore, $xml_file)
{
global $CFG, $db;
$status = true;
//Check it exists
if (!file_exists($xml_file)) {
$status = false;
}
//Get info from xml
if ($status) {
//Load data from XML to info
$info = restore_read_xml_metacourse($xml_file);
}
//Process info about metacourse
if ($status and $info) {
//Process child records
if (!empty($info->childs)) {
foreach ($info->childs as $child) {
$dbcourse = false;
$dbmetacourse = false;
//Check if child course exists in destination server
//(by id in the same server or by idnumber and shortname in other server)
if (backup_is_same_site($restore)) {
//Same server, lets see by id
$dbcourse = get_record('course', 'id', $child->id);
} else {
//Different server, lets see by idnumber and shortname, and only ONE record
$dbcount = count_records('course', 'idnumber', $child->idnumber, 'shortname', $child->shortname);
if ($dbcount == 1) {
$dbcourse = get_record('course', 'idnumber', $child->idnumber, 'shortname', $child->shortname);
}
}
//If child course has been found, insert data
if ($dbcourse) {
$dbmetacourse->child_course = $dbcourse->id;
$dbmetacourse->parent_course = $restore->course_id;
$status = insert_record('course_meta', $dbmetacourse);
} else {
//Child course not found, notice!
if (!defined('RESTORE_SILENTLY')) {
echo '<ul><li>' . get_string('childcoursenotfound') . ' (' . $child->id . '/' . $child->idnumber . '/' . $child->shortname . ')</li></ul>';
}
}
}
//Now, recreate student enrolments...
sync_metacourse($restore->course_id);
}
//Process parent records
if (!empty($info->parents)) {
foreach ($info->parents as $parent) {
$dbcourse = false;
$dbmetacourse = false;
//Check if parent course exists in destination server
//(by id in the same server or by idnumber and shortname in other server)
if (backup_is_same_site($restore)) {
//Same server, lets see by id
$dbcourse = get_record('course', 'id', $parent->id);
} else {
//Different server, lets see by idnumber and shortname, and only ONE record
$dbcount = count_records('course', 'idnumber', $parent->idnumber, 'shortname', $parent->shortname);
if ($dbcount == 1) {
$dbcourse = get_record('course', 'idnumber', $parent->idnumber, 'shortname', $parent->shortname);
}
}
//If parent course has been found, insert data if it is a metacourse
if ($dbcourse) {
if ($dbcourse->metacourse) {
$dbmetacourse->parent_course = $dbcourse->id;
$dbmetacourse->child_course = $restore->course_id;
$status = insert_record('course_meta', $dbmetacourse);
//Now, recreate student enrolments in parent course
sync_metacourse($dbcourse->id);
} else {
//Parent course isn't metacourse, notice!
if (!defined('RESTORE_SILENTLY')) {
echo '<ul><li>' . get_string('parentcoursenotmetacourse') . ' (' . $parent->id . '/' . $parent->idnumber . '/' . $parent->shortname . ')</li></ul>';
}
}
} else {
//Parent course not found, notice!
if (!defined('RESTORE_SILENTLY')) {
echo '<ul><li>' . get_string('parentcoursenotfound') . ' (' . $parent->id . '/' . $parent->idnumber . '/' . $parent->shortname . ')</li></ul>';
}
}
}
}
}
return $status;
}
}
$msg .= '</p>';
print_simple_box_start('center');
notify($msg);
print_simple_box_end();
}
//Back to Assign Roles button
echo "<br/>";
echo "<div class='continuebutton'>";
print_single_button('assign.php', array('contextid' => $contextid), get_string('assignrolesin', 'role', print_context_name($context)));
echo "</div>";
} else {
// Print overview table
// sync metacourse enrolments if needed
if ($inmeta) {
sync_metacourse($course);
}
// Get the names of role holders for roles with between 1 and MAX_USERS_TO_LIST_PER_ROLE users,
// and so determine whether to show the extra column.
$rolehodlercount = array();
$rolehodlernames = array();
$strmorethanten = get_string('morethan', 'role', MAX_USERS_TO_LIST_PER_ROLE);
$showroleholders = false;
foreach ($assignableroles as $roleid => $rolename) {
$countusers = count_role_users($roleid, $context);
$rolehodlercount[$roleid] = $countusers;
$roleusers = '';
if (0 < $countusers && $countusers <= MAX_USERS_TO_LIST_PER_ROLE) {
$roleusers = get_role_users($roleid, $context, false, 'u.id, u.lastname, u.firstname');
if (!empty($roleusers)) {
$strroleusers = array();
/**
* Clear a course out completely, deleting all content
* but don't delete the course itself
*
* @uses $CFG
* @param int $courseid The id of the course that is being deleted
* @param bool $showfeedback Whether to display notifications of each action the function performs.
* @return bool true if all the removals succeeded. false if there were any failures. If this
* method returns false, some of the removals will probably have succeeded, and others
* failed, but you have no way of knowing which.
*/
function remove_course_contents($courseid, $showfeedback = true)
{
global $CFG;
require_once $CFG->libdir . '/questionlib.php';
require_once $CFG->libdir . '/gradelib.php';
$result = true;
if (!($course = get_record('course', 'id', $courseid))) {
error('Course ID was incorrect (can\'t find it)');
}
$strdeleted = get_string('deleted');
/// Clean up course formats (iterate through all formats in the even the course format was ever changed)
$formats = get_list_of_plugins('course/format');
foreach ($formats as $format) {
$formatdelete = $format . '_course_format_delete_course';
$formatlib = "{$CFG->dirroot}/course/format/{$format}/lib.php";
if (file_exists($formatlib)) {
include_once $formatlib;
if (function_exists($formatdelete)) {
if ($showfeedback) {
notify($strdeleted . ' ' . $format);
}
$formatdelete($course->id);
}
}
}
/// Delete every instance of every module
if ($allmods = get_records('modules')) {
foreach ($allmods as $mod) {
$modname = $mod->name;
$modfile = $CFG->dirroot . '/mod/' . $modname . '/lib.php';
$moddelete = $modname . '_delete_instance';
// Delete everything connected to an instance
$moddeletecourse = $modname . '_delete_course';
// Delete other stray stuff (uncommon)
$count = 0;
if (file_exists($modfile)) {
include_once $modfile;
if (function_exists($moddelete)) {
if ($instances = get_records($modname, 'course', $course->id)) {
foreach ($instances as $instance) {
if ($cm = get_coursemodule_from_instance($modname, $instance->id, $course->id)) {
/// Delete activity context questions and question categories
question_delete_activity($cm, $showfeedback);
}
if ($moddelete($instance->id)) {
$count++;
} else {
notify('Could not delete ' . $modname . ' instance ' . $instance->id . ' (' . format_string($instance->name) . ')');
$result = false;
}
if ($cm) {
// delete cm and its context in correct order
delete_records('course_modules', 'id', $cm->id);
delete_context(CONTEXT_MODULE, $cm->id);
}
}
}
} else {
notify('Function ' . $moddelete . '() doesn\'t exist!');
$result = false;
}
if (function_exists($moddeletecourse)) {
$moddeletecourse($course, $showfeedback);
}
}
if ($showfeedback) {
notify($strdeleted . ' ' . $count . ' x ' . $modname);
}
}
} else {
error('No modules are installed!');
}
/// Give local code a chance to delete its references to this course.
require_once $CFG->libdir . '/locallib.php';
notify_local_delete_course($courseid, $showfeedback);
/// Delete course blocks
if ($blocks = get_records_sql("SELECT *\n FROM {$CFG->prefix}block_instance\n WHERE pagetype = '" . PAGE_COURSE_VIEW . "'\n AND pageid = {$course->id}")) {
if (delete_records('block_instance', 'pagetype', PAGE_COURSE_VIEW, 'pageid', $course->id)) {
if ($showfeedback) {
notify($strdeleted . ' block_instance');
}
require_once $CFG->libdir . '/blocklib.php';
foreach ($blocks as $block) {
/// Delete any associated contexts for this block
delete_context(CONTEXT_BLOCK, $block->id);
// fix for MDL-7164
// Get the block object and call instance_delete()
if (!($record = blocks_get_record($block->blockid))) {
$result = false;
continue;
}
if (!($obj = block_instance($record->name, $block))) {
$result = false;
continue;
}
// Return value ignored, in core mods this does not do anything, but just in case
// third party blocks might have stuff to clean up
// we execute this anyway
$obj->instance_delete();
}
} else {
$result = false;
}
}
/// Delete any groups, removing members and grouping/course links first.
require_once $CFG->dirroot . '/group/lib.php';
groups_delete_groupings($courseid, $showfeedback);
groups_delete_groups($courseid, $showfeedback);
/// Delete all related records in other tables that may have a courseid
/// This array stores the tables that need to be cleared, as
/// table_name => column_name that contains the course id.
$tablestoclear = array('event' => 'courseid', 'log' => 'course', 'course_sections' => 'course', 'course_modules' => 'course', 'backup_courses' => 'courseid', 'user_lastaccess' => 'courseid', 'backup_log' => 'courseid');
foreach ($tablestoclear as $table => $col) {
if (delete_records($table, $col, $course->id)) {
if ($showfeedback) {
notify($strdeleted . ' ' . $table);
}
} else {
$result = false;
}
}
/// Clean up metacourse stuff
if ($course->metacourse) {
delete_records("course_meta", "parent_course", $course->id);
sync_metacourse($course->id);
// have to do it here so the enrolments get nuked. sync_metacourses won't find it without the id.
if ($showfeedback) {
notify("{$strdeleted} course_meta");
}
} else {
if ($parents = get_records("course_meta", "child_course", $course->id)) {
foreach ($parents as $parent) {
remove_from_metacourse($parent->parent_course, $parent->child_course);
// this will do the unenrolments as well.
}
if ($showfeedback) {
notify("{$strdeleted} course_meta");
}
}
}
/// Delete questions and question categories
question_delete_course($course, $showfeedback);
/// Remove all data from gradebook
$context = get_context_instance(CONTEXT_COURSE, $courseid);
remove_course_grades($courseid, $showfeedback);
remove_grade_letters($context, $showfeedback);
return $result;
}
/**
* Deletes one or more role assignments. You must specify at least one parameter.
* @param $roleid
* @param $userid
* @param $groupid
* @param $contextid
* @param $enrol unassign only if enrolment type matches, NULL means anything
* @return boolean - success or failure
*/
function role_unassign($roleid = 0, $userid = 0, $groupid = 0, $contextid = 0, $enrol = NULL)
{
global $USER, $CFG, $DB;
require_once $CFG->dirroot . '/group/lib.php';
$success = true;
$args = array('roleid', 'userid', 'groupid', 'contextid');
$select = array();
$params = array();
foreach ($args as $arg) {
if (${$arg}) {
$select[] = "{$arg} = ?";
$params[] = ${$arg};
}
}
if (!empty($enrol)) {
$select[] = "enrol=?";
$params[] = $enrol;
}
if ($select) {
if ($ras = $DB->get_records_select('role_assignments', implode(' AND ', $select), $params)) {
$mods = get_list_of_plugins('mod');
foreach ($ras as $ra) {
$fireevent = false;
/// infinite loop protection when deleting recursively
if (!($ra = $DB->get_record('role_assignments', array('id' => $ra->id)))) {
continue;
}
if ($DB->delete_records('role_assignments', array('id' => $ra->id))) {
$fireevent = true;
} else {
$success = false;
}
if (!($context = get_context_instance_by_id($ra->contextid))) {
// strange error, not much to do
continue;
}
/* mark contexts as dirty here, because we need the refreshed
* caps bellow to delete group membership and user_lastaccess!
* and yes, this is very expensive for bulk operations :-(
*/
mark_context_dirty($context->path);
/// If the user is the current user, then do full reload of capabilities too.
if (!empty($USER->id) && $USER->id == $ra->userid) {
load_all_capabilities();
}
/// Ask all the modules if anything needs to be done for this user
foreach ($mods as $mod) {
include_once $CFG->dirroot . '/mod/' . $mod . '/lib.php';
$functionname = $mod . '_role_unassign';
if (function_exists($functionname)) {
$functionname($ra->userid, $context);
// watch out, $context might be NULL if something goes wrong
}
}
/// now handle metacourse role unassigment and removing from goups if in course context
if ($context->contextlevel == CONTEXT_COURSE) {
// cleanup leftover course groups/subscriptions etc when user has
// no capability to view course
// this may be slow, but this is the proper way of doing it
if (!has_capability('moodle/course:view', $context, $ra->userid)) {
// remove from groups
groups_delete_group_members($context->instanceid, $ra->userid);
// delete lastaccess records
$DB->delete_records('user_lastaccess', array('userid' => $ra->userid, 'courseid' => $context->instanceid));
}
//unassign roles in metacourses if needed
if ($parents = $DB->get_records('course_meta', array('child_course' => $context->instanceid))) {
foreach ($parents as $parent) {
sync_metacourse($parent->parent_course);
}
}
}
if ($fireevent) {
events_trigger('role_unassigned', $ra);
}
}
}
}
return $success;
}
/**
* Clear a course out completely, deleting all content
* but don't delete the course itself
*
* @global object
* @global object
* @param int $courseid The id of the course that is being deleted
* @param bool $showfeedback Whether to display notifications of each action the function performs.
* @return bool true if all the removals succeeded. false if there were any failures. If this
* method returns false, some of the removals will probably have succeeded, and others
* failed, but you have no way of knowing which.
*/
function remove_course_contents($courseid, $showfeedback = true)
{
global $CFG, $DB, $OUTPUT;
require_once $CFG->libdir . '/questionlib.php';
require_once $CFG->libdir . '/gradelib.php';
$result = true;
if (!($course = $DB->get_record('course', array('id' => $courseid)))) {
print_error('invalidcourseid');
}
$context = get_context_instance(CONTEXT_COURSE, $courseid);
$strdeleted = get_string('deleted');
/// Clean up course formats (iterate through all formats in the even the course format was ever changed)
$formats = get_plugin_list('format');
foreach ($formats as $format => $formatdir) {
$formatdelete = $format . '_course_format_delete_course';
$formatlib = "{$formatdir}/lib.php";
if (file_exists($formatlib)) {
include_once $formatlib;
if (function_exists($formatdelete)) {
if ($showfeedback) {
echo $OUTPUT->notification($strdeleted . ' ' . $format);
}
$formatdelete($course->id);
}
}
}
/// Delete every instance of every module
if ($allmods = $DB->get_records('modules')) {
foreach ($allmods as $mod) {
$modname = $mod->name;
$modfile = $CFG->dirroot . '/mod/' . $modname . '/lib.php';
$moddelete = $modname . '_delete_instance';
// Delete everything connected to an instance
$moddeletecourse = $modname . '_delete_course';
// Delete other stray stuff (uncommon)
$count = 0;
if (file_exists($modfile)) {
include_once $modfile;
if (function_exists($moddelete)) {
if ($instances = $DB->get_records($modname, array('course' => $course->id))) {
foreach ($instances as $instance) {
if ($cm = get_coursemodule_from_instance($modname, $instance->id, $course->id)) {
/// Delete activity context questions and question categories
question_delete_activity($cm, $showfeedback);
}
if ($moddelete($instance->id)) {
$count++;
} else {
echo $OUTPUT->notification('Could not delete ' . $modname . ' instance ' . $instance->id . ' (' . format_string($instance->name) . ')');
$result = false;
}
if ($cm) {
// delete cm and its context in correct order
$DB->delete_records('course_modules', array('id' => $cm->id));
delete_context(CONTEXT_MODULE, $cm->id);
}
}
}
} else {
echo $OUTPUT->notification('Function ' . $moddelete . '() doesn\'t exist!');
$result = false;
}
if (function_exists($moddeletecourse)) {
$moddeletecourse($course, $showfeedback);
}
}
if ($showfeedback) {
echo $OUTPUT->notification($strdeleted . ' ' . $count . ' x ' . $modname);
}
}
} else {
print_error('nomodules', 'debug');
}
/// Delete course blocks
blocks_delete_all_for_context($context->id);
/// Delete any groups, removing members and grouping/course links first.
require_once $CFG->dirroot . '/group/lib.php';
groups_delete_groupings($courseid, $showfeedback);
groups_delete_groups($courseid, $showfeedback);
/// Delete all related records in other tables that may have a courseid
/// This array stores the tables that need to be cleared, as
/// table_name => column_name that contains the course id.
$tablestoclear = array('event' => 'courseid', 'log' => 'course', 'course_sections' => 'course', 'course_modules' => 'course', 'backup_courses' => 'courseid', 'user_lastaccess' => 'courseid', 'backup_log' => 'courseid');
foreach ($tablestoclear as $table => $col) {
if ($DB->delete_records($table, array($col => $course->id))) {
if ($showfeedback) {
echo $OUTPUT->notification($strdeleted . ' ' . $table);
}
} else {
$result = false;
}
}
/// Clean up metacourse stuff
if ($course->metacourse) {
$DB->delete_records("course_meta", array("parent_course" => $course->id));
sync_metacourse($course->id);
// have to do it here so the enrolments get nuked. sync_metacourses won't find it without the id.
if ($showfeedback) {
echo $OUTPUT->notification("{$strdeleted} course_meta");
}
} else {
if ($parents = $DB->get_records("course_meta", array("child_course" => $course->id))) {
foreach ($parents as $parent) {
remove_from_metacourse($parent->parent_course, $parent->child_course);
// this will do the unenrolments as well.
}
if ($showfeedback) {
echo $OUTPUT->notification("{$strdeleted} course_meta");
}
}
}
/// Delete questions and question categories
question_delete_course($course, $showfeedback);
/// Remove all data from gradebook
remove_course_grades($courseid, $showfeedback);
remove_grade_letters($context, $showfeedback);
/// Delete course tags
require_once $CFG->dirroot . '/tag/coursetagslib.php';
coursetag_delete_course_tags($course->id, $showfeedback);
return $result;
}
/**
* Deletes one or more role assignments. You must specify at least one parameter.
* @param $roleid
* @param $userid
* @param $groupid
* @param $contextid
* @param $enrol unassign only if enrolment type matches, NULL means anything
* @return boolean - success or failure
*/
function role_unassign($roleid = 0, $userid = 0, $groupid = 0, $contextid = 0, $enrol = NULL)
{
global $USER, $CFG;
$success = true;
$args = array('roleid', 'userid', 'groupid', 'contextid');
$select = array();
foreach ($args as $arg) {
if (${$arg}) {
$select[] = $arg . ' = ' . ${$arg};
}
}
if (!empty($enrol)) {
$select[] = "enrol='{$enrol}'";
}
if ($select) {
if ($ras = get_records_select('role_assignments', implode(' AND ', $select))) {
$mods = get_list_of_plugins('mod');
foreach ($ras as $ra) {
/// infinite loop protection when deleting recursively
if (!($ra = get_record('role_assignments', 'id', $ra->id))) {
continue;
}
$success = delete_records('role_assignments', 'id', $ra->id) and $success;
/// If the user is the current user, then reload the capabilities too.
if (!empty($USER->id) && $USER->id == $ra->userid) {
load_all_capabilities();
}
$context = get_record('context', 'id', $ra->contextid);
/// Ask all the modules if anything needs to be done for this user
foreach ($mods as $mod) {
include_once $CFG->dirroot . '/mod/' . $mod . '/lib.php';
$functionname = $mod . '_role_unassign';
if (function_exists($functionname)) {
$functionname($ra->userid, $context);
// watch out, $context might be NULL if something goes wrong
}
}
/// now handle metacourse role unassigment and removing from goups if in course context
if (!empty($context) and $context->contextlevel == CONTEXT_COURSE) {
// cleanup leftover course groups/subscriptions etc when user has
// no capability to view course
// this may be slow, but this is the proper way of doing it
if (!has_capability('moodle/course:view', $context, $ra->userid)) {
// remove from groups
if ($groups = groups_get_all_groups($context->instanceid)) {
foreach ($groups as $group) {
delete_records('groups_members', 'groupid', $group->id, 'userid', $ra->userid);
}
}
// delete lastaccess records
delete_records('user_lastaccess', 'userid', $ra->userid, 'courseid', $context->instanceid);
}
//unassign roles in metacourses if needed
if ($parents = get_records('course_meta', 'child_course', $context->instanceid)) {
foreach ($parents as $parent) {
sync_metacourse($parent->parent_course);
}
}
}
}
}
}
return $success;
}
/**
* Clear a course out completely, deleting all content
* but don't delete the course itself
*
* @uses $CFG
* @param int $courseid The id of the course that is being deleted
* @param bool $showfeedback Whether to display notifications of each action the function performs.
* @return bool true if all the removals succeeded. false if there were any failures. If this
* method returns false, some of the removals will probably have succeeded, and others
* failed, but you have no way of knowing which.
*/
function remove_course_contents($courseid, $showfeedback = true)
{
global $CFG;
$result = true;
if (!($course = get_record('course', 'id', $courseid))) {
error('Course ID was incorrect (can\'t find it)');
}
$strdeleted = get_string('deleted');
/// First delete every instance of every module
if ($allmods = get_records('modules')) {
foreach ($allmods as $mod) {
$modname = $mod->name;
$modfile = $CFG->dirroot . '/mod/' . $modname . '/lib.php';
$moddelete = $modname . '_delete_instance';
// Delete everything connected to an instance
$moddeletecourse = $modname . '_delete_course';
// Delete other stray stuff (uncommon)
$count = 0;
if (file_exists($modfile)) {
include_once $modfile;
if (function_exists($moddelete)) {
if ($instances = get_records($modname, 'course', $course->id)) {
foreach ($instances as $instance) {
if ($cm = get_coursemodule_from_instance($modname, $instance->id, $course->id)) {
delete_context(CONTEXT_MODULE, $cm->id);
}
if ($moddelete($instance->id)) {
$count++;
} else {
notify('Could not delete ' . $modname . ' instance ' . $instance->id . ' (' . format_string($instance->name) . ')');
$result = false;
}
}
}
} else {
notify('Function ' . $moddelete . '() doesn\'t exist!');
$result = false;
}
if (function_exists($moddeletecourse)) {
$moddeletecourse($course, $showfeedback);
}
}
if ($showfeedback) {
notify($strdeleted . ' ' . $count . ' x ' . $modname);
}
}
} else {
error('No modules are installed!');
}
/// Give local code a chance to delete its references to this course.
require_once 'locallib.php';
notify_local_delete_course($courseid, $showfeedback);
/// Delete course blocks
if ($blocks = get_records_sql("SELECT *\n FROM {$CFG->prefix}block_instance\n WHERE pagetype = '" . PAGE_COURSE_VIEW . "'\n AND pageid = {$course->id}")) {
if (delete_records('block_instance', 'pagetype', PAGE_COURSE_VIEW, 'pageid', $course->id)) {
if ($showfeedback) {
notify($strdeleted . ' block_instance');
}
require_once $CFG->libdir . '/blocklib.php';
foreach ($blocks as $block) {
/// Delete any associated contexts for this block
// Block instances are rarely created. Since the block instance is gone from the above delete
// statement, calling delete_context() will generate a warning as get_context_instance could
// no longer create the context as the block is already gone.
if (record_exists('context', 'contextlevel', CONTEXT_BLOCK, 'instanceid', $block->id)) {
delete_context(CONTEXT_BLOCK, $block->id);
}
// fix for MDL-7164
// Get the block object and call instance_delete()
if (!($record = blocks_get_record($block->blockid))) {
$result = false;
continue;
}
if (!($obj = block_instance($record->name, $block))) {
$result = false;
continue;
}
// Return value ignored, in core mods this does not do anything, but just in case
// third party blocks might have stuff to clean up
// we execute this anyway
$obj->instance_delete();
}
} else {
$result = false;
}
}
/// Delete any groups, removing members and grouping/course links first.
//TODO: If groups or groupings are to be shared between courses, think again!
if ($groupids = groups_get_groups($course->id)) {
foreach ($groupids as $groupid) {
if (groups_remove_all_members($groupid)) {
if ($showfeedback) {
notify($strdeleted . ' groups_members');
}
} else {
$result = false;
}
/// Delete any associated context for this group ??
delete_context(CONTEXT_GROUP, $groupid);
if (groups_delete_group($groupid)) {
if ($showfeedback) {
notify($strdeleted . ' groups');
}
} else {
$result = false;
}
}
}
/// Delete any groupings.
$result = groups_delete_all_groupings($course->id);
if ($result && $showfeedback) {
notify($strdeleted . ' groupings');
}
/// Delete all related records in other tables that may have a courseid
/// This array stores the tables that need to be cleared, as
/// table_name => column_name that contains the course id.
$tablestoclear = array('event' => 'courseid', 'log' => 'course', 'course_sections' => 'course', 'course_modules' => 'course', 'grade_category' => 'courseid', 'grade_exceptions' => 'courseid', 'grade_item' => 'courseid', 'grade_letter' => 'courseid', 'grade_preferences' => 'courseid', 'backup_courses' => 'courseid', 'backup_log' => 'courseid');
foreach ($tablestoclear as $table => $col) {
if (delete_records($table, $col, $course->id)) {
if ($showfeedback) {
notify($strdeleted . ' ' . $table);
}
} else {
$result = false;
}
}
/// Clean up metacourse stuff
if ($course->metacourse) {
delete_records("course_meta", "parent_course", $course->id);
sync_metacourse($course->id);
// have to do it here so the enrolments get nuked. sync_metacourses won't find it without the id.
if ($showfeedback) {
notify("{$strdeleted} course_meta");
}
} else {
if ($parents = get_records("course_meta", "child_course", $course->id)) {
foreach ($parents as $parent) {
remove_from_metacourse($parent->parent_course, $parent->child_course);
// this will do the unenrolments as well.
}
if ($showfeedback) {
notify("{$strdeleted} course_meta");
}
}
}
/// Delete questions and question categories
include_once $CFG->libdir . '/questionlib.php';
question_delete_course($course, $showfeedback);
/// Delete all roles and overiddes in the course context (but keep the course context)
if ($courseid != SITEID) {
delete_context(CONTEXT_COURSE, $course->id);
}
// fix for MDL-9016
// clear the cache because the course context is deleted, and
// we don't want to write assignment, overrides and context_rel table
// with this old context id!
get_context_instance('clearcache');
return $result;
}