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47 lines
1.5 KiB
Python
47 lines
1.5 KiB
Python
""" base model with default fields """
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from django.db import models
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from django.dispatch import receiver
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from bookwyrm.settings import DOMAIN
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from .fields import RemoteIdField
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class BookWyrmModel(models.Model):
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""" shared fields """
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created_date = models.DateTimeField(auto_now_add=True)
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updated_date = models.DateTimeField(auto_now=True)
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remote_id = RemoteIdField(null=True, activitypub_field="id")
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def get_remote_id(self):
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""" generate a url that resolves to the local object """
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base_path = "https://%s" % DOMAIN
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if hasattr(self, "user"):
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base_path = "%s%s" % (base_path, self.user.local_path)
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model_name = type(self).__name__.lower()
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return "%s/%s/%d" % (base_path, model_name, self.id)
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class Meta:
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""" this is just here to provide default fields for other models """
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abstract = True
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@property
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def local_path(self):
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""" how to link to this object in the local app """
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return self.get_remote_id().replace("https://%s" % DOMAIN, "")
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@receiver(models.signals.post_save)
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# pylint: disable=unused-argument
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def execute_after_save(sender, instance, created, *args, **kwargs):
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""" set the remote_id after save (when the id is available) """
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if not created or not hasattr(instance, "get_remote_id"):
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return
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if not instance.remote_id:
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instance.remote_id = instance.get_remote_id()
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try:
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instance.save(broadcast=False)
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except TypeError:
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instance.save()
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