CODEWITHSUNDEEP
node.jsdatabasemongoose
xetryDcoder
xetryDcoder

Reputation: 157

How to select array of object in mongoose?

I have been trying to update the order status uisng nodejs and mongoose. But i came to problem on updating the status.

I have been trying to access the cart from ORDER document (table). I want to change the status inside cart from 'packed' to 'shifted'. I have been trying all day long but could not find the solution. Please help me with it. How can i select the cart and change the status in mongoose using nodejs?

ORDER

{
    "_id": {
        "$oid": "60a9a8b2bc65933bb4c22a3b"
    },
    "cart": [{
        "_id": {
            "$oid": "60a8bcafe7815c2950de4b28"
        },
        "userId": "60a3ad7fb51de12a5472de37",
        "count": "1",
        "status": "packed",
        "__v": 0
    }],
    "userId": "60a3ad7fb51de12a5472de37",
    "fName": "jay sree",
    "street": "5th cross hindurous",
    
}

MODEL

const mongoose = require('mongoose')

const schema = mongoose.Schema

const orderSchema = new schema(
  {
    userId: {
      type: String,
      required: true
    },
      cart: [{
          type: Object
      }],
      fName: {
      type: String,
      required: true
    },
    street: {
      type: String,
    },
  },
  {
    timestamps: true,
  }
);

module.exports = mongoose.model("Order", orderSchema)

Controller

exports.postUpdateStatus = (req, res, next) => {
    let status = req.params.status //shifted
    let productId =  mongoose.Types.ObjectId(req.params.productid )//60a8bcafe7815c2950de4b28
    let orderId = mongoose.Types.ObjectId(req.params.orderid )//60a9a8b2bc65933bb4c22a3b
    Order.find({id: orderId})
    .select({ cart: {$elemMatch: {id: productId}}})
    .then(product => {
        res.jsonp(product)
    })
    .catch(err => {
        console.log(err)
    })
}

Upvotes: 2

Views: 555

Answers (1)

eol
eol

Reputation: 24565

You can call the findOneAndUpdate function and use the positional operator to update the matching cart-item. Something like:

Order.findOneAndUpdate({
    "_id": "60a9a8b2bc65933bb4c22a3b",
    "cart._id": "60a8bcafe7815c2950de4b28"
}, {
    "$set": {
        "cart.$.status": "shifted"
    }
}, {
    new: true
});

Note that I'm using the new-option here, in order for findOneAndUpdate to return the updated document.

Here's an example on mongoplayground where you can play around with the query: https://mongoplayground.net/p/5sW7NB1mJK7

Upvotes: 2

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