[英]Update nested objects when key is variable in mongodb document
我想更新汽車字段並在此 mongodb 文檔中添加更多鍵,例如colors
:
{
_id :ObjectId("719le05cs456ec79b78dc0c4")
name : "sam",
car: {
colors: {
red: 10
}
},
}
But my problem is adding variable as key to car object, In my function the variable
argument is an object and the model is a number, I want to add this argument to the car object in document, So I update the document:
const updateFunction = async (name , variable , model)=>{
const update = await db.collection("collection").updateOne(
{name : name} ,
{$set : { `car.${variable}` : {model : model } } }
);
}
}
updateFunction("sam" , "brand" , 321);
但它不正確並且有語法錯誤,那么如何更新 object 並將另一個鍵和值作為變量添加到它並像這樣更新文檔?
{
_id :ObjectId("719le05cs456ec79b78dc0c4")
name : "sam",
car: {
colors: {
red: 10
},
brand : {
model : 321
}
},
}
使用"car.brand"
而不是'car.${brand}'
db.collection.update({
name: "sam"
},
{
$set: {
"car.brand": {
benz: 321
}
}
})
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