derive_model_example.py

import logging

from tortoise import Tortoise, run_async, Model, fields

logging.basicConfig(
    level=logging.DEBUG,
    format="[%(asctime)s] %(levelname)s [%(name)s.%(funcName)s:%(lineno)d] %(message)s",
)
logger = logging.getLogger(__name__)


async def init_db():
    await Tortoise.init(
        {
            'connections': {
                'default': {
                    'engine': 'tortoise.backends.asyncpg',
                    'credentials': {
                        'host': 'localhost',
                        'port': 5432,
                        'user': 'postgres',
                        'password': 'postgres',
                        'database': 'testdb',
                    }
                }
            },
            'apps': {
                'models': {
                    'models': ['__main__'],
                    'default_connection': 'default',
                }
            }
        }
    )
    await Tortoise.generate_schemas()


class AbstractModel(Model):
    id = fields.IntField(pk=True)
    created = fields.DatetimeField(auto_now_add=True)
    updated = fields.DatetimeField(auto_now=True)

    class Meta:
        abstract = True


class Something(AbstractModel):
    name = fields.TextField()

    def __str__(self):
        return str(self.name)


if __name__ == '__main__':
    run_async(init_db())