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pds-2021-g2-nest/code/backend/nest_backend/database/tables/BoolOperation.py
2021-05-07 19:15:14 +02:00

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Python

"""
This module defines the BoolOperation database class.
"""
from ..base import Base, backref
from .Enums import OperationType
class BoolOperation(Base.Model):
__tablename__ = "bool_operation"
id = Base.Column(Base.Integer, primary_key=True)
operation = Base.Column(Base.Enum(OperationType), nullable=False)
is_root = Base.Column(Base.Boolean, default=False, nullable=False)
# Foreign Keys
condition_id = Base.Column(Base.Integer, Base.ForeignKey("condition.id"))
node_1_id = Base.Column(Base.Integer, Base.ForeignKey("bool_operation.id"))
node_2_id = Base.Column(Base.Integer, Base.ForeignKey("bool_operation.id"))
alert_id = Base.Column(Base.Integer, Base.ForeignKey("alert.id"))
# Relationships
condition = Base.relationship("Condition", back_populates="operations")
node_1 = Base.relationship("BoolOperation", primaryjoin=("bool_operation.c.node_1_id==bool_operation.c.id"),
remote_side="BoolOperation.id", backref=backref("father_1", uselist=False))
node_2 = Base.relationship("BoolOperation", primaryjoin=("bool_operation.c.node_2_id==bool_operation.c.id"),
remote_side="BoolOperation.id", backref=backref("father_2", uselist=False))
alert = Base.relationship("Alert", back_populates="operations")
def to_json(self):
return {"id": self.id,
"operation": self.operation,
"is_root": self.is_root,
"alert_id": self.alert_id,
"condition": self.condition.to_json() if self.condition else None,
"node_1": self.node_1.to_json() if self.node_1 else None,
"node_2": self.node_2.to_json() if self.node_2 else None
}