如何编写 MongoDb Mongoose 查询来匹配两个属性

Question

我的股票模型文件看起来像这样：

const Stock = new Schema(
    {
        ClientId : {type : Schema.ObjectId},
        ClientName : {type : String}, 
        StockName : { type : String },
        StockType : { type : String },      
        ConsumedQuantity : {type : Number},
        TotalQuantity : {type : Number},
        WastageQuantity : {type : Number}, 

     },
    { timestamps: true },
);

这里还有一个来自我的库存控制器的查询：

Stock.findOne({ ClientId : clientId }, (err, stock) => {


        if (err) {
            return res.status(404).json({
                err,
                message: 'Stock not found!',
            })
        }

        if( stock.ConsumedQuantity === undefined)
            stock.ConsumedQuantity = materialConsumed

        else
            stock.ConsumedQuantity += materialConsumed


        if( stock.WastageQuantity === undefined)
            stock.WastageQuantity = materialWasted

        else
            stock.WastageQuantity += materialWasted

        stock
            .save()
            .then(() => {

                return res.status(200).json({
                    success: true,
                    message: 'Material in inventory has been updated!',

                })
            })
            .catch(error => {

                return res.status(404).json({
                    error,
                    message: 'Material in inventory was not updated!',
                })
            })



    })

我希望能够根据两个条件查询我的库存商品，首先是 ClientId 等于 clientId，这是我从服务器请求中获得的值。其次，我希望 stockItem 的名称与字符串匹配。我该怎么做呢？是否可以使用 AND 运算符在同一查询中执行 ClientId : clientId 和 StockName : stockName ？请帮忙！谢谢你。

Answer 1

Stock.findOne({ ClientId : clientId, StockName : yourString }, (err, stock) => {
    if (err) {
        return res.status(404).json({
            err,
            message: 'Stock not found!',
        })
    }

    if( stock.ConsumedQuantity === undefined)
        stock.ConsumedQuantity = materialConsumed

    else
        stock.ConsumedQuantity += materialConsumed


    if( stock.WastageQuantity === undefined)
        stock.WastageQuantity = materialWasted

    else
        stock.WastageQuantity += materialWasted

    stock
        .save()
        .then(() => {

            return res.status(200).json({
                success: true,
                message: 'Material in inventory has been updated!',

            })
        })
        .catch(error => {

            return res.status(404).json({
                error,
                message: 'Material in inventory was not updated!',
            })
        })
})

如何编写 MongoDb Mongoose 查询来匹配两个属性

How to write MongoDb Mongoose query to match two attributes

mongoose

mongodb

mongodb-query

mongoose-schema