public static function delete_group_members($members) {
        global $CFG, $DB;
        require_once("$CFG->dirroot/group/lib.php");

        $params = self::validate_parameters(self::delete_group_members_parameters(), array('members'=>$members));

        $transaction = $DB->start_delegated_transaction();

        foreach ($params['members'] as $member) {
            // validate params
            $groupid = $member['groupid'];
            $userid = $member['userid'];

            $group = groups_get_group($groupid, '*', MUST_EXIST);
            $user = $DB->get_record('user', array('id'=>$userid, 'deleted'=>0, 'mnethostid'=>$CFG->mnet_localhost_id), '*', MUST_EXIST);

            // now security checks
            $context = context_course::instance($group->courseid, IGNORE_MISSING);
            try {
                self::validate_context($context);
            } catch (Exception $e) {
                $exceptionparam = new stdClass();
                $exceptionparam->message = $e->getMessage();
                $exceptionparam->courseid = $group->courseid;
                throw new moodle_exception('errorcoursecontextnotvalid' , 'webservice', '', $exceptionparam);
            }
            require_capability('moodle/course:managegroups', $context);

            if (!groups_remove_member_allowed($group, $user)) {
                throw new moodle_exception('errorremovenotpermitted', 'group', '', fullname($user));
            }
            groups_remove_member($group, $user);
        }

        $transaction->allow_commit();
    }
public static function delete_group_members($members) {
        global $CFG, $DB;
        require_once("$CFG->dirroot/group/lib.php");

        $params = self::validate_parameters(self::delete_group_members_parameters(), array('members'=>$members));

        $transaction = $DB->start_delegated_transaction();

        foreach ($params['members'] as $member) {
            // validate params
            $groupid = $member['groupid'];
            $userid = $member['userid'];

            $group = groups_get_group($groupid, '*', MUST_EXIST);
            $user = $DB->get_record('user', array('id'=>$userid, 'deleted'=>0, 'mnethostid'=>$CFG->mnet_localhost_id), '*', MUST_EXIST);

            // now security checks
            $context = context_course::instance($group->courseid, IGNORE_MISSING);
            try {
                self::validate_context($context);
            } catch (Exception $e) {
                $exceptionparam = new stdClass();
                $exceptionparam->message = $e->getMessage();
                $exceptionparam->courseid = $group->courseid;
                throw new moodle_exception('errorcoursecontextnotvalid' , 'webservice', '', $exceptionparam);
            }
            require_capability('moodle/course:managegroups', $context);

            if (!groups_remove_member_allowed($group, $user)) {
                throw new moodle_exception('errorremovenotpermitted', 'group', '', fullname($user));
            }
            groups_remove_member($group, $user);
        }

        $transaction->allow_commit();
    }
public static function delete_group_members ( $ members ) { global $ CFG , $ DB ; require_once ( "$CFG->dirroot/group/lib.php" ) ; $ params = self :: validate_parameters ( self :: delete_group_members_parameters ( ) , array ( 'members' => $ members ) ) ; $ transaction = $ DB -> start_delegated_transaction ( ) ; foreach ( $ params [ 'members' ] as $ member ) { // validate params $ groupid = $ member [ 'groupid' ] ; $ userid = $ member [ 'userid' ] ; $ group = groups_get_group ( $ groupid , '*' , MUST_EXIST ) ; $ user = $ DB -> get_record ( 'user' , array ( 'id' => $ userid , 'deleted' => 0 , 'mnethostid' => $ CFG -> mnet_localhost_id ) , '*' , MUST_EXIST ) ; // now security checks $ context = context_course :: instance ( $ group -> courseid , IGNORE_MISSING ) ; try { self :: validate_context ( $ context ) ; } catch ( Exception $ e ) { $ exceptionparam = new stdClass ( ) ; $ exceptionparam -> message = $ e -> getMessage ( ) ; $ exceptionparam -> courseid = $ group -> courseid ; throw new moodle_exception ( 'errorcoursecontextnotvalid' , 'webservice' , '' , $ exceptionparam ) ; } require_capability ( 'moodle/course:managegroups' , $ context ) ; if ( ! groups_remove_member_allowed ( $ group , $ user ) ) { throw new moodle_exception ( 'errorremovenotpermitted' , 'group' , '' , fullname ( $ user ) ) ; } groups_remove_member ( $ group , $ user ) ; } $ transaction -> allow_commit ( ) ; }
Delete group members

@param array $members of arrays with keys userid, groupid
@since Moodle 2.2
Delete group members