如何为Mongodb设计通知模式

是的,绝对建议将通知存储在自己的表中。这有助于保持数据库的干净,并将Apple与对等服务器分离。所以你的桌子可能看起来像这样

Notification
{
    id: int;
    sender: ForeignKey to user;
    receiver: ForeignKey to user;
    type: string; // or preferable ForeignKey to another table, in which you store possible types (see normalization of database)
    content: string;
    is_read: boolean;
    created_at: Date;
}