devicehub-django/lot/models.py

62 lines
2.2 KiB
Python

from django.db import models
from django.utils.translation import gettext_lazy as _
from utils.constants import (
STR_SM_SIZE,
STR_SIZE,
STR_EXTEND_SIZE,
)
from user.models import User, Institution
# from device.models import Device
from evidence.models import Annotation
class LotTag(models.Model):
name = models.CharField(max_length=STR_SIZE, blank=False, null=False)
owner = models.ForeignKey(Institution, on_delete=models.CASCADE)
user = models.ForeignKey(User, on_delete=models.SET_NULL, null=True, blank=True)
def __str__(self):
return self.name
class DeviceLot(models.Model):
lot = models.ForeignKey("Lot", on_delete=models.CASCADE)
device_id = models.CharField(max_length=STR_EXTEND_SIZE, blank=False, null=False)
class Lot(models.Model):
created = models.DateTimeField(auto_now_add=True)
updated = models.DateTimeField(auto_now=True)
name = models.CharField(max_length=STR_SIZE, blank=True, null=True)
code = models.CharField(max_length=STR_SIZE, blank=True, null=True)
description = models.CharField(max_length=STR_SIZE, blank=True, null=True)
closed = models.BooleanField(default=True)
owner = models.ForeignKey(Institution, on_delete=models.CASCADE)
user = models.ForeignKey(User, on_delete=models.SET_NULL, null=True, blank=True)
type = models.ForeignKey(LotTag, on_delete=models.CASCADE)
def add(self, v):
if DeviceLot.objects.filter(lot=self, device_id=v).exists():
return
DeviceLot.objects.create(lot=self, device_id=v)
def remove(self, v):
for d in DeviceLot.objects.filter(lot=self, device_id=v):
d.delete()
class LotAnnotation(models.Model):
class Type(models.IntegerChoices):
SYSTEM= 0, "System"
USER = 1, "User"
DOCUMENT = 2, "Document"
created = models.DateTimeField(auto_now_add=True)
lot = models.ForeignKey(Lot, on_delete=models.CASCADE)
owner = models.ForeignKey(Institution, on_delete=models.CASCADE)
user = models.ForeignKey(User, on_delete=models.SET_NULL, null=True, blank=True)
type = models.SmallIntegerField(choices=Type)
key = models.CharField(max_length=STR_EXTEND_SIZE)
value = models.CharField(max_length=STR_EXTEND_SIZE)