AdminAction::deletePost PHP Method

    public function deletePost()
    {
        if (empty($_POST['post_id'])) {
            $return['status'] = 0;
            $return['data'] = '';
            echo json_encode($return);
            exit;
        }
        !is_array($_POST['post_id']) && ($_POST['post_id'] = array($_POST['post_id']));
        $data['post_id'] = array('in', $_POST['post_id']);
        $res = D('weiba_post')->where($data)->delete();
        if ($res) {
            D('weiba_reply')->where($data)->delete();
            $return['status'] = 1;
            $return['data'] = L('PUBLIC_ADMIN_OPRETING_SUCCESS');
        } else {
            $return['status'] = 0;
            $return['data'] = L('PUBLIC_ADMIN_OPRETING_ERROR');
        }
        echo json_encode($return);
        exit;
    }