I have the following collection
{
"_id" : ObjectId("57315ba4846dd82425ca2408"),
"myarray" : [
{
userId : "8bc32153-2bea-4dd5-8487-3b65e3aa0869",
Time:2022-09-20T04:44:46.000+00:00,
point : 5
},
{
userId : "5020db46-3b99-4c2d-8637-921d6abe8b26",
Time:2022-09-20T04:44:49.000+00:00
point : 2
},
]
}
These are my questions
I want to push into myarray
if userId
doesn’t exist, and if userid already exists then update time and point also I have to keep only 5 elements in the array if 6th element comes then I a have to sort the array based on Time and remove oldest time entry
what is the best way to do this in mongo using aggregation
FYI we are using Mongo 4.4