relationship prefetch related name

tortoise-library.py

import asyncio

from tortoise import Tortoise, fields
from tortoise.connection import connections
from tortoise.models import Model

class Author(Model):
    id = fields.IntField(pk=True)
    name = fields.CharField(max_length=255)

class Book(Model):
    id = fields.IntField(pk=True)
    title = fields.CharField(max_length=255)
    author = fields.ForeignKeyField('models.Author', related_name='books')


async def create_data():
    author1 = await Author.create(name='Autor 1')
    author2 = await Author.create(name='Autor 2')

    await Book.create(title='Livro 1', author=author1)
    await Book.create(title='Livro 2', author=author1)
    await Book.create(title='Livro 3', author=author2)

async def fetch_data():
    authors = await Author.all().prefetch_related('books')
    print(authors)

    for author in authors:
        print(f'Autor: {author.name}')
        for book in author.books:
            print(f'Livro: {book.title}')

async def init():
    await Tortoise.init(
        db_url='asyncpg://postgres:123456@localhost:5432/library',
        modules={'models': ['__main__']}
    )
    await Tortoise.generate_schemas()

    await create_data()
    await fetch_data()

    await connections.close_all()


asyncio.run(init())