Fastadmin操作栏按钮自定义添加及条件限制隐藏显示

根据某字段的值判断显示某个按钮

效果图 : 

代码 : 

{field: 'operate', title: __('Operate'), table: table,
    buttons: [{
        name: 'TDG',
        text: __('去发货'),
        extend:'data-area = \'["530px", "345px"]\'', // 弹窗大小
        title: __('去发货'),
        classname: 'btn btn-xs btn-info btn-dialog',
        icon: '',
        url: 'user/user/ToDeliverGoods'
    }],
    events: Table.api.events.operate,
    formatter: function(value, row, index){
        var that = $.extend({}, this);
        var table = $(that.table).clone(true);
        if (row.order_status != 1){
            $(table).data("operate-TDG", null);
        }
        that.table = table;
        return Table.api.formatter.operate.call(that, value, row, index);
    }
}