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