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October 25, 2018 14:43
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Minimal example of Eve-SQLAlchemy enumerators not working when using enumerated classes
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| import enum | |
| from eve import Eve | |
| from sqlalchemy import Column, Integer, Enum | |
| from sqlalchemy.ext.declarative import declarative_base | |
| from eve_sqlalchemy import SQL | |
| from eve_sqlalchemy.config import DomainConfig, ResourceConfig | |
| from eve_sqlalchemy.validation import ValidatorSQL | |
| Base = declarative_base() | |
| class ABEnum(enum.Enum): | |
| A = "A" | |
| B = "B" | |
| class Things(Base): | |
| __tablename__ = "things" | |
| id = Column(Integer, primary_key=True) | |
| # These are the important lines | |
| works = Column(Enum("A", "B")) | |
| broken = Column(Enum(ABEnum)) | |
| # See https://docs.sqlalchemy.org/en/latest/core/type_basics.html#sqlalchemy.types.Enum | |
| # Setup the app | |
| DOMAIN = DomainConfig({"things": ResourceConfig(Things)}).render() | |
| app = Eve(settings={"DOMAIN": DOMAIN}, validator=ValidatorSQL, data=SQL) | |
| db = app.data.driver | |
| Base.metadata.bind = db.engine | |
| db.Model = Base | |
| db.create_all() | |
| db.session.add_all([Things(broken=ABEnum.A, works="A"), Things(broken=ABEnum.B, works="B")]) | |
| db.session.commit() | |
| app.run() | |
| # Navigating to /things raises `TypeError: Object of type Enumerator is not JSON serializable` |
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