What is the point of "EmbeddedJsonModel" ?

[hieubnt235]

Hello guys, I try to understand what is the different of EmbeddedJsonModel and JsonModel and when to use it, i try some example to clarify but cannot find anything.

from redis.asyncio import Redis
from uuid_extensions import uuid7
from pydantic import AnyUrl, Field, BaseModel
from aredis_om import JsonModel, EmbeddedJsonModel, Migrator, Field as RField
from aredis_om.model.model import model_registry

from typing import Literal
from uuid import UUID

redis = Redis(host='localhost',port=3333,password="ssssss")

class Message(EmbeddedJsonModel):
	role: Literal['user', 'system', 'assistant']
	content: str
	class Meta:
		database = redis

class ChatSessionData(EmbeddedJsonModel): #  change here
	id: str = RField(index=True,primary_key=True)

	messages: list[Message] = Field(default_factory=list)
	summaries: list[str] = Field(default_factory=list)
	urls: list[AnyUrl] = Field(default_factory=list,description="Addition data should be store in object storage and provide url.")
	class Meta:
		database = redis

class UserData(JsonModel):
	username:str = RField(index=True,primary_key=True)
	password:str
	chat_sessions:list[ChatSessionData] = Field(default_factory=list)
	class Meta:
		database = redis

await Migrator().run() # create all indexes

chat_id = uuid7()
chat_id_str = str(chat_id)
chat_session_data = ChatSessionData(id = chat_id_str,
                                    messages=[Message(role = "user",content = "this is content")],
                                    summaries=["sum1","sum2"],
                                    urls = ["http://example.com"])
userdata = UserData(username="xxx", password="def",token = uuid7(),chat_sessions = [chat_session_data])

await userdata.save()

In the above code, i change EmbeddedJsonModel parent class to both JsonModel and EmbeddedJsonModel. And they store object completely the same in server (monitor in RedisInsight).

Thank you.