mongoose save or update
// This will create another document if it doesn't exist
findByIdAndUpdate(_id, { something: 'updated' }, { upsert: true });mongoose save or update
// This will create another document if it doesn't exist
findByIdAndUpdate(_id, { something: 'updated' }, { upsert: true });mongoose updatemany example
User.update({"created": false}, {"$set":{"created": true}}, {"multi": true}, (err, writeResult) => {});mongodb mongoose update an element in an array of objects
model.updateOne(
{ _id: "abcxyz", "items._id": "deflmn" },
{
$set: {
"items.$.name": "new_name",
"items.$.value": "new_value",
}
}
)update query in mongoose
var conditions = { name: 'bourne' }
, update = { $inc: { visits: 1 }}
Model.update(conditions, update, { multi: true }).then(updatedRows=>{
}).catch(err=>{
console.log(err)
})updating an array of object in mongoose
Person.update(
{
_id: 5,
grades: { $elemMatch: { grade: { $lte: 90 }, mean: { $gt: 80 } } }
},
{ $set: { "grades.$.std" : 6 } }
)mongoose update array in object
Person.findOneAndUpdate({_id: id},
{
"$set": {[`items.$[outer].${propertyName}`]: value}
},
{
"arrayFilters": [{ "outer.id": itemId }]
},
function(err, response) {
...
})Copyright © 2021 Codeinu
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