Automatically populate date in MongoDB on insert

Question

MongoDB provides a way to update the date field with the system when performing update operations: https://docs.mongodb.com/manual/reference/operator/update/currentDate/ . Is there an equivalent of this for insert operations?

Answer 1

You can try to do a few things if you do not want to process this from the code (I executed the code below directly on the mongo shell):

• If you want to use the update of the current currentDate with upsert = true:

  db.orders.update(
     {"_id":ObjectId()},
     {
         $currentDate: {
           createtime: true
         }
     },
     { upsert: true }
  )
  

Now it will generate an objectid on the application server instead of a date / time (unless you use the raw command).

2. Use the new timestamp or date object directly:

   db.orders.insert(
       "createtime": new Timestamp()
   )
   

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Answer 2

$currentDate - , .

MongoDB,

var current_date=new Date();
db.collection.insert({datefield:current_date})

new Date()

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