mongodb $not _id

Question

I need a way to search but not include an _id which is already on the screen in front of the user. For example, I have 3 pet profiles one which the user is already viewing.<

Answer 1

You need to do a $ne (not equal) to make sure the current pet you are viewing is excluded from the search by owner.

Example in the mongo shell:

var viewingPetId = ObjectId("515535b6760fe8735f5f6899");
var ownerId = ObjectId("515535ba760fe8735f5f689a");

db.mypet.find(
    {
        _id: { $ne: viewingPetId },
        owner: ownerId
    }
)

Answer 2

Use $ne as (notice no need to use ObjectId(), string will autocast to ObjectId):

db.organizations.find({"_id" : {$ne:"563c50e05cdb2be30391e873"}})