PHP group_can_change_role Examples

Example #1

File: changerole.php Project: patkira/mahara

function changerole_validate(Pieform $form, $values)
{
    global $user, $group;
    if (!group_can_change_role($group->id, $user->id, $values['role'])) {
        $form->set_error('role', get_string('usercannotchangetothisrole', 'group'));
    }
}

Example #2

File: group.php Project: vohung96/mahara

/**
 * Changes a user role in a group, if this is allowed.
 *
 * @param int $groupid The ID of the group
 * @param int $userid  The ID of the user whose role needs changing
 * @param string $role The role the user wishes to switch to
 * @throws AccessDeniedException If the specified role change is not allowed.
 *                               Check with group_can_change_role first if you
 *                               need to.
 */
function group_change_role($groupid, $userid, $role)
{
    // group_can_change_role checks whether the group and user parameters are valid
    if (!group_can_change_role($groupid, $userid, $role)) {
        throw new AccessDeniedException(get_string('usercannotchangetothisrole', 'group'));
    }
    set_field('group_member', 'role', $role, 'group', $groupid, 'member', $userid);
}