/**
* Delete a user from the platform, and all its belongings. This is a
* very dangerous function that should only be accessible by
* super-admins. Other roles should only be able to disable a user,
* which removes access to the platform but doesn't delete anything.
* @param int The ID of th user to be deleted
* @return boolean true if user is successfully deleted, false otherwise
* @assert (null) === false
* @assert ('abc') === false
*/
public static function delete_user($user_id)
{
if ($user_id != strval(intval($user_id))) {
return false;
}
if ($user_id === false) {
return false;
}
if (!self::can_delete_user($user_id)) {
return false;
}
$table_user = Database::get_main_table(TABLE_MAIN_USER);
$usergroup_rel_user = Database::get_main_table(TABLE_USERGROUP_REL_USER);
$table_course_user = Database::get_main_table(TABLE_MAIN_COURSE_USER);
$table_course = Database::get_main_table(TABLE_MAIN_COURSE);
$table_session = Database::get_main_table(TABLE_MAIN_SESSION);
$table_admin = Database::get_main_table(TABLE_MAIN_ADMIN);
$table_session_user = Database::get_main_table(TABLE_MAIN_SESSION_USER);
$table_session_course_user = Database::get_main_table(TABLE_MAIN_SESSION_COURSE_USER);
$table_group = Database::get_course_table(TABLE_GROUP_USER);
$table_work = Database::get_course_table(TABLE_STUDENT_PUBLICATION);
// Unsubscribe the user from all groups in all his courses
$sql = "SELECT c.id FROM {$table_course} c, {$table_course_user} cu\n WHERE\n cu.user_id = '" . $user_id . "' AND\n relation_type<>" . COURSE_RELATION_TYPE_RRHH . " AND\n c.id = cu.c_id";
$res = Database::query($sql);
while ($course = Database::fetch_object($res)) {
$sql = "DELETE FROM {$table_group}\n WHERE c_id = {$course->id} AND user_id = {$user_id}";
Database::query($sql);
}
// Unsubscribe user from all classes
//Classes are not longer supported
/* $sql = "DELETE FROM $table_class_user WHERE user_id = '".$user_id."'";
Database::query($sql); */
// Unsubscribe user from usergroup_rel_user
$sql = "DELETE FROM {$usergroup_rel_user} WHERE user_id = '" . $user_id . "'";
Database::query($sql);
// Unsubscribe user from all courses
$sql = "DELETE FROM {$table_course_user} WHERE user_id = '" . $user_id . "'";
Database::query($sql);
// Unsubscribe user from all courses in sessions
$sql = "DELETE FROM {$table_session_course_user} WHERE user_id = '" . $user_id . "'";
Database::query($sql);
// If the user was added as a id_coach then set the current admin as coach see BT#
$currentUserId = api_get_user_id();
$sql = "UPDATE {$table_session} SET id_coach = {$currentUserId} WHERE id_coach = '" . $user_id . "'";
Database::query($sql);
$sql = "UPDATE {$table_session} SET id_coach = {$currentUserId} WHERE session_admin_id = '" . $user_id . "'";
Database::query($sql);
// Unsubscribe user from all sessions
$sql = "DELETE FROM {$table_session_user} WHERE user_id = '" . $user_id . "'";
Database::query($sql);
// Delete user picture
/* TODO: Logic about api_get_setting('split_users_upload_directory') == 'true'
a user has 4 different sized photos to be deleted. */
$user_info = api_get_user_info($user_id);
if (strlen($user_info['picture_uri']) > 0) {
$path = self::getUserPathById($user_id, 'system');
$img_path = $path . $user_info['picture_uri'];
if (file_exists($img_path)) {
unlink($img_path);
}
}
// Delete the personal course categories
$course_cat_table = Database::get_main_table(TABLE_USER_COURSE_CATEGORY);
$sql = "DELETE FROM {$course_cat_table} WHERE user_id = '" . $user_id . "'";
Database::query($sql);
// Delete user from database
$sql = "DELETE FROM {$table_user} WHERE id = '" . $user_id . "'";
Database::query($sql);
// Delete user from the admin table
$sql = "DELETE FROM {$table_admin} WHERE user_id = '" . $user_id . "'";
Database::query($sql);
// Delete the personal agenda-items from this user
$agenda_table = Database::get_main_table(TABLE_PERSONAL_AGENDA);
$sql = "DELETE FROM {$agenda_table} WHERE user = '******'";
Database::query($sql);
$gradebook_results_table = Database::get_main_table(TABLE_MAIN_GRADEBOOK_RESULT);
$sql = 'DELETE FROM ' . $gradebook_results_table . ' WHERE user_id = ' . $user_id;
Database::query($sql);
$extraFieldValue = new ExtraFieldValue('user');
$extraFieldValue->deleteValuesByItem($user_id);
if (api_get_multiple_access_url()) {
$url_id = api_get_current_access_url_id();
UrlManager::delete_url_rel_user($user_id, $url_id);
} else {
//we delete the user from the url_id =1
UrlManager::delete_url_rel_user($user_id, 1);
}
if (api_get_setting('allow_social_tool') == 'true') {
$userGroup = new UserGroup();
//Delete user from portal groups
$group_list = $userGroup->get_groups_by_user($user_id);
if (!empty($group_list)) {
foreach ($group_list as $group_id => $data) {
$userGroup->delete_user_rel_group($user_id, $group_id);
}
}
// Delete user from friend lists
SocialManager::remove_user_rel_user($user_id, true);
}
// Removing survey invitation
SurveyManager::delete_all_survey_invitations_by_user($user_id);
// Delete students works
$sql = "DELETE FROM {$table_work} WHERE user_id = {$user_id} AND c_id <> 0";
Database::query($sql);
// Add event to system log
$user_id_manager = api_get_user_id();
Event::addEvent(LOG_USER_DELETE, LOG_USER_ID, $user_id, api_get_utc_datetime(), $user_id_manager);
Event::addEvent(LOG_USER_DELETE, LOG_USER_OBJECT, $user_info, api_get_utc_datetime(), $user_id_manager);
return true;
}
/**
* Updates the access_url_rel_user table with a given user list
* @author Julio Montoya
* @param array user list
* @param int access_url_id
* */
public static function update_urls_rel_user($user_list, $access_url_id)
{
$table_url_rel_user = Database::get_main_table(TABLE_MAIN_ACCESS_URL_REL_USER);
$sql = "SELECT user_id FROM {$table_url_rel_user} WHERE access_url_id = " . intval($access_url_id);
$result = Database::query($sql);
$existing_users = array();
//Getting all users
while ($row = Database::fetch_array($result)) {
$existing_users[] = $row['user_id'];
}
// Adding users
$users_added = array();
foreach ($user_list as $user_id_to_add) {
if (!in_array($user_id_to_add, $existing_users)) {
$result = UrlManager::add_user_to_url($user_id_to_add, $access_url_id);
if ($result) {
$users_added[] = $user_id_to_add;
}
}
}
$users_deleted = array();
// Deleting old users
foreach ($existing_users as $user_id_to_delete) {
if (!in_array($user_id_to_delete, $user_list)) {
$result = UrlManager::delete_url_rel_user($user_id_to_delete, $access_url_id);
if ($result) {
$users_deleted[] = $user_id_to_delete;
}
}
}
if (empty($users_added) && empty($users_deleted)) {
return false;
}
return array('users_added' => $users_added, 'users_deleted' => $users_deleted);
}
function WSRemoveUserFromPortal($params)
{
if (!WSHelperVerifyKey($params['secret_key'])) {
return return_error(WS_ERROR_SECRET_KEY);
}
$userId = $params['user_id'];
$portalId = $params['portal_id'];
UrlManager::delete_url_rel_user($userId, $portalId);
$result = UrlManager::relation_url_user_exist($userId, $portalId);
if (empty($result)) {
return 1;
}
return 0;
}
/**
* Delete a user from the platform, and all its belongings. This is a
* very dangerous function that should only be accessible by
* super-admins. Other roles should only be able to disable a user,
* which removes access to the platform but doesn't delete anything.
* @param int The ID of th user to be deleted
* @return boolean true if user is succesfully deleted, false otherwise
* @assert (null) === false
* @assert ('abc') === false
*/
public static function delete_user($user_id)
{
if ($user_id != strval(intval($user_id))) {
return false;
}
if ($user_id === false) {
return false;
}
if (!self::can_delete_user($user_id)) {
return false;
}
$user_info = api_get_user_info($user_id);
$table_user = Database::get_main_table(TABLE_MAIN_USER);
$usergroup_rel_user = Database::get_main_table(TABLE_USERGROUP_REL_USER);
$table_course_user = Database::get_main_table(TABLE_MAIN_COURSE_USER);
$table_course = Database::get_main_table(TABLE_MAIN_COURSE);
$table_admin = Database::get_main_table(TABLE_MAIN_ADMIN);
$table_session_user = Database::get_main_table(TABLE_MAIN_SESSION_USER);
$table_session_course_user = Database::get_main_table(TABLE_MAIN_SESSION_COURSE_USER);
$table_group = Database::get_course_table(TABLE_GROUP_USER);
$table_work = Database::get_course_table(TABLE_STUDENT_PUBLICATION);
// Unsubscribe the user from all groups in all his courses
$sql = "SELECT c.id FROM {$table_course} c, {$table_course_user} cu\n WHERE cu.user_id = '" . $user_id . "' AND relation_type<>" . COURSE_RELATION_TYPE_RRHH . " AND c.id = cu.c_id";
$res = Database::query($sql);
while ($course = Database::fetch_object($res)) {
$sql = "DELETE FROM {$table_group} WHERE c_id = {$course->id} AND user_id = {$user_id}";
Database::query($sql);
}
// Unsubscribe user from all classes
//Classes are not longer supported
/*$sql = "DELETE FROM $table_class_user WHERE user_id = '".$user_id."'";
Database::query($sql);*/
// Unsubscribe user from usergroup_rel_user
$sql = "DELETE FROM {$usergroup_rel_user} WHERE user_id = '" . $user_id . "'";
Database::query($sql);
// Unsubscribe user from all courses
$sql = "DELETE FROM {$table_course_user} WHERE user_id = '" . $user_id . "'";
Database::query($sql);
// Unsubscribe user from all courses in sessions
$sql = "DELETE FROM {$table_session_course_user} WHERE id_user = '******'";
Database::query($sql);
// Unsubscribe user from all sessions
$sql = "DELETE FROM {$table_session_user} WHERE id_user = '******'";
Database::query($sql);
// Delete user picture
// TODO: Logic about api_get_setting('split_users_upload_directory') === 'true' , a user has 4 differnt sized photos to be deleted.
if (strlen($user_info['picture_uri']) > 0) {
$img_path = api_get_path(SYS_DATA_PATH) . 'upload/users/' . $user_id . '/' . $user_info['picture_uri'];
if (file_exists($img_path)) {
unlink($img_path);
}
}
// Delete the personal course categories
$course_cat_table = Database::get_main_table(TABLE_USER_COURSE_CATEGORY);
$sql = "DELETE FROM {$course_cat_table} WHERE user_id = '" . $user_id . "'";
Database::query($sql);
// Delete user from database
$sql = "DELETE FROM {$table_user} WHERE user_id = '" . $user_id . "'";
Database::query($sql);
// Delete user from the admin table
$sql = "DELETE FROM {$table_admin} WHERE user_id = '" . $user_id . "'";
Database::query($sql);
// Delete the personal agenda-items from this user
$agenda_table = Database::get_main_table(TABLE_PERSONAL_AGENDA);
$sql = "DELETE FROM {$agenda_table} WHERE user = '******'";
Database::query($sql);
$gradebook_results_table = Database::get_main_table(TABLE_MAIN_GRADEBOOK_RESULT);
$sql = 'DELETE FROM ' . $gradebook_results_table . ' WHERE user_id = ' . $user_id;
Database::query($sql);
$t_ufv = Database::get_main_table(TABLE_MAIN_USER_FIELD_VALUES);
$sqlv = "DELETE FROM {$t_ufv} WHERE user_id = {$user_id}";
Database::query($sqlv);
if (api_get_multiple_access_url()) {
$url_id = api_get_current_access_url_id();
UrlManager::delete_url_rel_user($user_id, $url_id);
} else {
//we delete the user from the url_id =1
UrlManager::delete_url_rel_user($user_id, 1);
}
if (api_get_setting('allow_social_tool') == 'true') {
$usergroup = new UserGroup();
//Delete user from portal groups
$group_list = $usergroup->get_groups_by_user($user_id);
if (!empty($group_list)) {
foreach ($group_list as $group_id => $data) {
$usergroup->delete_user_rel_group($user_id, $group_id);
}
}
// Delete user from friend lists
SocialManager::remove_user_rel_user($user_id, true);
}
survey_manager::delete_all_survey_invitations_by_user($user_id);
// Delete students works
$sqlw = "DELETE FROM {$table_work} WHERE user_id = {$user_id} AND c_id <> 0";
Database::query($sqlw);
unset($sqlw);
// Add event to system log
$user_id_manager = api_get_user_id();
event_system(LOG_USER_DELETE, LOG_USER_ID, $user_id, api_get_utc_datetime(), $user_id_manager, null, $user_info);
event_system(LOG_USER_DELETE, LOG_USER_OBJECT, implode(';', $user_info), api_get_utc_datetime(), $user_id_manager, null, $user_info);
return true;
}