moviewyrm/bookwyrm/models/notification.py
2021-02-10 16:21:29 -08:00

50 lines
1.9 KiB
Python

''' alert a user to activity '''
from django.db import models
from .base_model import BookWyrmModel
NotificationType = models.TextChoices(
'NotificationType',
'FAVORITE REPLY MENTION TAG FOLLOW FOLLOW_REQUEST BOOST IMPORT ADD')
class Notification(BookWyrmModel):
''' you've been tagged, liked, followed, etc '''
user = models.ForeignKey('User', on_delete=models.CASCADE)
related_book = models.ForeignKey(
'Edition', on_delete=models.CASCADE, null=True)
related_user = models.ForeignKey(
'User',
on_delete=models.CASCADE, null=True, related_name='related_user')
related_status = models.ForeignKey(
'Status', on_delete=models.CASCADE, null=True)
related_import = models.ForeignKey(
'ImportJob', on_delete=models.CASCADE, null=True)
related_list_item = models.ForeignKey(
'ListItem', on_delete=models.CASCADE, null=True)
read = models.BooleanField(default=False)
notification_type = models.CharField(
max_length=255, choices=NotificationType.choices)
def save(self, *args, **kwargs):
''' save, but don't make dupes '''
# there's probably a better way to do this
if self.__class__.objects.filter(
user=self.user,
related_book=self.related_book,
related_user=self.related_user,
related_status=self.related_status,
related_import=self.related_import,
related_list_item=self.related_list_item,
notification_type=self.notification_type,
).exists():
return
super().save(*args, **kwargs)
class Meta:
''' checks if notifcation is in enum list for valid types '''
constraints = [
models.CheckConstraint(
check=models.Q(notification_type__in=NotificationType.values),
name="notification_type_valid",
)
]