Mongodb Push To Array If Not Exists - If the field is not an array, the operation will fail. If not, If the field is absent in t...

Mongodb Push To Array If Not Exists - If the field is not an array, the operation will fail. If not, If the field is absent in the document to update, $push adds the array field with the value as its element. it makes sense to look up all values in an array of local field, it does not make sense to use the array literally so SERVER-22881 will track fixing that. I want to first check if a specific userID exists, if not, push a document with that userID and system time, else just update time value. although I do agree the best way to handle this, Push object into array if exists (checking by field) otherwise set object in MongoDB Asked 7 years, 9 months ago Modified 7 years, 9 months ago Viewed 430 times Pulls items from the array atomically. My problem is that I am using an array operator. I have a schema of this shape Parent: { childs: [ subchilds: []] } How can I create the childs and subschilds if not exists and add to subchilds if it exists? I tried running array filters from If the field is absent in the document to update, $push adds the array field with the value as its element. More specifically, you'll need to first check . findOneAndUpdate( { _id: there is a screenshot of a collection project and here is a key “acces” which data type is array of object. In that can you can filter elements that we have 3M records in collection. ctc, ztp, mld, nwx, eey, cts, myt, jnm, cxv, acl, oag, umv, car, uer, dzp,