Borrowing-TrackerBackend/equipment_tracker/breakages/models.py

from django.db import models
from accounts.models import CustomUser
from transactions.models import Transaction
from equipments.models import EquipmentInstance
from django.utils.timezone import now


class BreakageReport(models.Model):
    transaction = models.ForeignKey(
        Transaction, on_delete=models.CASCADE)
    equipments = models.ManyToManyField(EquipmentInstance)
    resolved = models.BooleanField(default=False)
    timestamp = models.DateTimeField(default=now, editable=False)

    def __str__(self):
        return f"Breakage report for transaction #{self.transaction.id} by {self.transaction.borrower} under {self.transaction.teacher}"