Update or replace an embedded document in MongoDB collection

Question

I have following data structure:

db.objects
{
    \"_id\" : 1,
    \"name\" : \"object name\",
    \"type\" : \"rectangle\",
    \"area\" : {
        \"posit         


        

Answer 1

This is a very simple use of the $set operator. So essentially the update form is:

db.objects.update(
    { "_id": 1 },
    {
        "$set": {
            "area": { /* all of your object properties */ },
            "dimension": { /* all of your object properties */ }
        }
    }
)

Alternately you do them separately:

db.objects.update(
    { "_id": 1 },
    {
        "$set": {
            "area.position_x1": 1,
            "area.position_y1": 1,
            "dimension.width": 1 
        }
    }
)

According to you actual needs.

Or as C# type code with a Builder:

var query = Query.EQ("_id",1);

var update = Update.Set("area.position_x1", 1)
    .Set("area.position_y1", 1)
    .Set("dimension.width", 1);

MongoCollection<Class>.update(query, update);