CODEWITHSUNDEEP
mongodb
Itzik.B
Itzik.B

Reputation: 1076

MongoDB update collection's data

I try to update an MongoDB data by using this code: db.medicines.update({"_id":"586a048e34e5c12614a7424a"}, {$set: {amount:'3'}})

but unfortantly the query does not recognize the selector "_id":"586a048e34e5c12614a7424a", even if its exists. Its succsed when I change the key to another like: name,rate and etc..

there is a special way to use update with _id parameter?

Thanks a head.

Upvotes: 0

Views: 37

Answers (1)

Sridhar
Sridhar

Reputation: 11786

_id will be the unique ObjectId that mongodb generates for every document before inserting it. The query dint work because _id is an ObjectId and "586a048e34e5c12614a7424a" is a String. You need to wrap _id with ObjectId().

If you're using mongodb query

db.medicines.update({
  "_id": ObjectId("586a048e34e5c12614a7424a")
}, {
  $set: {
    amount: '3'
  }
});

If you are using mongoose. You can use findByIdAndUpdate

db.medicines.findByIdAndUpdate({
  "_id": "586a048e34e5c12614a7424a"
}, {
  $set: {
    amount: '3'
  }
});

Upvotes: 2

Related Questions