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26 lines
986 B
Python
26 lines
986 B
Python
from sqlalchemy import Column, Integer, UniqueConstraint
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from sqlalchemy.event import listens_for
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from project import db
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from project.models.trackable_mixin import TrackableMixin
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from project.utils import make_check_violation
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class EventReference(db.Model, TrackableMixin):
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__tablename__ = "eventreference"
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__table_args__ = (UniqueConstraint("event_id", "admin_unit_id"),)
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id = Column(Integer(), primary_key=True)
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event_id = db.Column(db.Integer, db.ForeignKey("event.id"), nullable=False)
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admin_unit_id = db.Column(db.Integer, db.ForeignKey("adminunit.id"), nullable=False)
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rating = Column(Integer(), default=50)
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def validate(self):
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if self.event and self.event.admin_unit_id == self.admin_unit_id:
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raise make_check_violation("Own events cannot be referenced")
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@listens_for(EventReference, "before_insert")
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@listens_for(EventReference, "before_update")
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def before_saving_event_reference(mapper, connect, self):
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self.validate()
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