31 lines
1.1 KiB
Python
31 lines
1.1 KiB
Python
import databases
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import ormar
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import sqlalchemy
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database = databases.Database("sqlite:///db.sqlite")
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metadata = sqlalchemy.MetaData()
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class Book(ormar.Model):
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class Meta:
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tablename = "books"
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metadata = metadata
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database = database
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id: int = ormar.Integer(primary_key=True)
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title: str = ormar.String(max_length=200)
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author: str = ormar.String(max_length=100)
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genre: str = ormar.String(max_length=100, default='Fiction',
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choices=['Fiction', 'Adventure', 'Historic', 'Fantasy'])
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await Book.objects.create(title='Tom Sawyer', author="Twain, Mark", genre='Adventure')
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await Book.objects.create(title='War and Peace in Space', author="Tolstoy, Leo", genre='Fantasy')
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await Book.objects.create(title='Anna Karenina', author="Tolstoy, Leo", genre='Fiction')
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# delete accepts kwargs that will be used in filter
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# acting in same way as queryset.filter(**kwargs).delete()
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await Book.objects.delete(genre='Fantasy') # delete all fantasy books
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all_books = await Book.objects.all()
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assert len(all_books) == 2
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