from typing import Optional

from beanie import PydanticObjectId
from pydantic import BaseModel, Field


class Reader(BaseModel):
    id: Optional[PydanticObjectId] = Field(default=None, validation_alias="_id")

    @classmethod
    def from_model(cls, model):
        schema = cls.model_validate(model, from_attributes=True)
        return schema


class Writer(BaseModel):
    async def validate_foreign_key(self, db):
        pass