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IT_asset_management/app/models/assignment.py

38 lines
1.5 KiB
Python

from datetime import datetime
from app.extensions import db
class Assignment(db.Model):
"""Records the assignment of an asset to a user.
Every assignment (including past ones) is kept permanently so that
asset history is preserved even after a user record is masked.
"""
__tablename__ = 'assignments'
id = db.Column(db.Integer, primary_key=True)
asset_id = db.Column(db.Integer, db.ForeignKey('assets.id'), nullable=False)
user_id = db.Column(db.Integer, db.ForeignKey('users.id'), nullable=False)
assigned_date = db.Column(db.Date, nullable=False, default=datetime.utcnow)
returned_date = db.Column(db.Date, nullable=True)
assigned_by_id = db.Column(db.Integer, db.ForeignKey('admin_users.id'), nullable=True)
returned_by_id = db.Column(db.Integer, db.ForeignKey('admin_users.id'), nullable=True)
notes = db.Column(db.Text, nullable=True)
is_active = db.Column(db.Boolean, default=True, nullable=False)
created_at = db.Column(db.DateTime, default=datetime.utcnow)
updated_at = db.Column(db.DateTime, default=datetime.utcnow, onupdate=datetime.utcnow)
assigned_by = db.relationship('AdminUser', foreign_keys=[assigned_by_id])
returned_by = db.relationship('AdminUser', foreign_keys=[returned_by_id])
# Paperwork linked to this assignment
paperwork_docs = db.relationship('Paperwork', backref='assignment', lazy='dynamic')
def __repr__(self):
return f'<Assignment asset={self.asset_id} user={self.user_id} active={self.is_active}>'