Mongoose 5.x不允许传递大量运算符 [英] Mongoose 5.x disallows passing a spread of operators

问题描述

汇总查询返回错误.

'Mongoose 5.x不允许将大量运算符传递给 Model.aggregate().代替 Model.aggregate({$ match}，{$ skip})，执行 Model.aggregate([{{match}，{$ skip}])'，

'Mongoose 5.x disallows passing a spread of operators to Model.aggregate(). Instead of Model.aggregate({ $match }, { $skip }), do Model.aggregate([{ $match }, { $skip }])',

我正在使用猫鼬和MongoDb版本，例如

I am using mongoose and MongoDb version like

猫鼬":"^ 5.5.4"，mongod版本:3.6.12

"mongoose": "^5.5.4", mongod version: 3.6.12

请建议我，我将非常感谢您.

Please suggest me I will be very Thankful to you.

推荐答案

之前

Model.aggregate({
  $group: {
    _id: "$id",
    count: { $sum: "$like.count" }
  }
})

之后

Model.aggregate([{
  $group: {
    _id: "$id",
    count: { $sum: "$like.count" }
  }
}])

说明:在 Model.aggregate()用来获取不同的json对象之前，现在它们已将API更改为采用数组.

Explanation: Before Model.aggregate() used to take different json objects, now they have changed the API to take array.

只需将您的JSON对象包装为 [] 即可.

Just wrap your JSON objects with a [] it will work.

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