how can i update data on pymongo well? - pymongo

Question

i inserted data into mongodb to use pymongo like this.
data = {
'page_url': product_link,
'static': {
'created_at': datetime.datetime.now(),
'created_at_gmt': datetime.datetime.now(),
},
'created_at': datetime.datetime.now(),
'created_at_gmt': datetime.datetime.now(),
'updated_at': datetime.datetime.now(),
'updated_at_gmt': datetime.datetime.now()
db.product.insert_one(data)
then when i updated data, i removed created_at and created_at_gmt.
data = {
'page_url': product_link,
'static': {
},
'updated_at': datetime.datetime.now(),
'updated_at_gmt': datetime.datetime.now()
db.product.update_one({'page_url': product_link}, {"$set": data}, upsert=True)
but after i updated it, when i checked db data on compass, there was no created_at and created_at_gmt in static. on in static. there was created_at and created_at_gmt on same depth with static.
i don't know why it heppend...
can you help me ?

Answer 1

You should only update the keys you want to in the $set stage.
current_datetime = datetime.datetime.now()
db.product.update_one({
'page_url': product_link
}, {
"$set": {
'updated_at': current_datetime ,
'updated_at_gmt': current_datetime
}
}, upsert=True)
Like the above example, you should only reference the keys you want to update.
Have a look at $unset update command if you want to remove a key from a MongoDB Document.
Also, store the datetime value in a variable, so that it is uniform.