MongoDB | Problem inserting embedded documents into document

Question

I am trying to insert data in a nested format.

A snippet of my models (there are many, many more):

class LifetimeMode(db.EmbeddedDocument):
 meta = {'collection': 'lifetime_mode'}
 career = db.EmbeddedDocumentField(GameModeData)
 war = db.EmbeddedDocumentField(GameModeData)
 sd = db.EmbeddedDocumentField(GameModeData)
 dom = db.EmbeddedDocumentField(GameModeData)
class LifetimeData(db.EmbeddedDocument):
 meta = {'collection': 'lifetime_data'}
 mode = db.EmbeddedDocumentField(LifetimeMode)
class UserData(db.EmbeddedDocument):
 meta = {'collection': 'user_data'}
 timestamp = db.DateTimeField(default=datetime.utcnow)
 type = db.StringField()
 level = db.IntField()
 lifetime = db.EmbeddedDocumentField(LifetimeData)
class User(db.Document):
 meta = {'collection': 'user'}
 public_id = db.UUIDField()
 gamer_id = db.StringField()
 user_data = db.EmbeddedDocumentField(UserData)

When I try to create my database with dummy data I am running into an issue I cannot solve. I grab my data from an external API.

lt_mode_data = data['lifetime']['mode'] # << This is the API returned data
for mode, mode_data in lt_mode_data.items():
 game_mode_data = GameModeData()
 lifetime_mode = LifetimeMode()
 json_data = json.dumps(mode_data['properties'])
 lifetime_mode[mode] = game_mode_data.from_json(json_data)

The problem is that only the final mode is added, as if each modes data gets added but is then overwritten by the next.

Any ideas?

Answer 1

To solve this problem I changed the code to the following:

lt_mode_data = data['lifetime']['mode']
 mode_dict = {}
 game_mode_data = GameModeData()
 lifetime_mode = LifetimeMode()
 for index, (mode, mode_data) in enumerate(lt_mode_data.items()):
 mode_dict[mode] = mode_data['properties']
 lifetime_mode = lifetime_mode.from_json(game_mode_data.from_json(json.dumps(mode_dict)).to_json())