How to update a field in array of object Nodejs/MongoDB

Question

All I want is to update the value of the field "done" to "true"

I m developping with nodejs

here is the document :

{
"_id" : ObjectId("5a730e55114dbc2a0455c630"),
"email" : "[email protected]",
"password" : "12356789",
"tasks" : [ 
    {
        "title" : "new to do ",
        "description" : "new something ",
        "date" : "2018-02-07T18:16:29.469Z",
        "done" : false
    }, 
    {
        "title" : "new to d odo ",
        "description" : "dod ododoododododo",
        "date" : "2018-02-07T18:25:14.881Z",
        "done" : false
    }
]
}

You want to update it for some specific element or for each element in array? — rkm
– rkm, Commented Feb 8, 2018 at 11:36
a specific element for example the second one with the title "new to d odo " I want to change done to "true" — Hassen Fadhlaoui
– Hassen Fadhlaoui, Commented Feb 8, 2018 at 12:20
You could try using the $set operator: docs.mongodb.com/manual/reference/operator/update/set — t3__rry
– t3__rry, Commented Feb 8, 2018 at 13:44
can you tell a little bit more ? you want to change an object in nodejs , or in mongodb ? — UchihaItachi
– UchihaItachi, Commented Feb 8, 2018 at 19:00
I'm Sorry that the question wasn't clear for you ! I want to update the field "done" in the task named "new to d odo " in the array "tasks" in the hole object with nodeJS I'm asking for the querry because this document is from a MongoDb Database. — Hassen Fadhlaoui
– Hassen Fadhlaoui, Commented Feb 8, 2018 at 21:25

rkm · Accepted Answer · 2018-02-09 11:09:48Z

5

Something like this should work:

db.collectionName.update({
     "tasks.title": "new to d odo "
}, {
    $set: { "tasks.$.done": true }
})

You can check more details in the documentation.

answered Feb 9, 2018 at 11:09

rkm

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Comments

TofferJ · Accepted Answer · 2020-02-12 18:01:58Z

0

you can use

$push

$set

$addToSet

you can use these operators to insert any object or any value to an array in the mongoose model.

edited Feb 12, 2020 at 18:01

TofferJ

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answered Feb 12, 2020 at 17:16

krnitheesh16

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