17 lines
614 B
Python
17 lines
614 B
Python
from typing import List
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from sqlalchemy.orm import Mapped, mapped_column, relationship
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from app.extensions import db
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class Collection(db.Model):
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id: Mapped[int] = mapped_column(primary_key=True)
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name: Mapped[str] = mapped_column(unique=True, nullable=False)
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tasks: Mapped[List['Task']] = relationship("Task", back_populates="collection")
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users: Mapped[List['User']] = relationship("User", cascade="all, delete-orphan", back_populates="collection")
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def exists(name: str):
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collections = Collection.query.filter_by(name=name).all()
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return len(collections) > 0 |