docs_src/models/docs006.py
import databases
import ormar
import sqlalchemy
database = databases.Database("sqlite:///db.sqlite")
metadata = sqlalchemy.MetaData()
class Course(ormar.Model):
ormar_config = ormar.OrmarConfig(
database=database,
metadata=metadata,
# define your constraints in OrmarConfig of the model
# it's a list that can contain multiple constraints
# hera a combination of name and column will have to be unique in db
constraints=[ormar.UniqueColumns("name", "completed")],
)
id: int = ormar.Integer(primary_key=True)
name: str = ormar.String(max_length=100)
completed: bool = ormar.Boolean(default=False)