kopia lustrzana https://gitlab.com/marnanel/chapeau
149 wiersze
3.8 KiB
Python
149 wiersze
3.8 KiB
Python
from django.db import models
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from django.conf import settings
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import logging
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import json
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logger = logging.getLogger(name='django_kepi')
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class Collection(models.Model):
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owner = models.ForeignKey(
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'django_kepi.Actor',
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on_delete = models.DO_NOTHING,
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)
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name = models.URLField(
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max_length=255,
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)
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class Meta:
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constraints = [
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models.UniqueConstraint(
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fields = ['owner', 'name'],
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name = 'owner and name',
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),
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]
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@property
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def path(self):
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return self.owner.list_path(self.name)
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def append(self, what):
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logger.info('Collection %s gains %s',
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self, what)
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newMember = CollectionMember(
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parent = self,
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member = what,
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)
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newMember.save()
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def __str__(self):
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return '%s/%s' % (
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json.loads(self.owner.f_preferredUsername),
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self.name,
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)
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# FIXME it ought to be possible to specify username and collectionname
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# instead of just name here
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@classmethod
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def get(cls, name,
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create_if_missing=True):
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from django_kepi.models.actor import Actor
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try:
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username, collectionname = name.split('/')
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except ValueError:
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logger.info('collection id in wrong format: %s',
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name)
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raise ValueError('Format of name is "username/collectionname": %s',
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name)
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logger.debug('Finding collection %s/%s',
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username, collectionname)
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try:
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result = cls.objects.get(
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owner = username,
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name = collectionname,
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)
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logger.debug(' -- found %s', result)
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return result
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except cls.DoesNotExist:
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if create_if_missing:
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try:
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owner = Actor.objects.get(
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f_preferredUsername = json.dumps(username),
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)
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except Actor.DoesNotExist:
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logger.info(" -- can't get %s because %s doesn't exist",
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name, username,
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)
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raise KeyError(name)
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newCollection = cls(
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owner = owner,
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name = collectionname,
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)
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newCollection.save()
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logger.debug(' -- not found; created %s',
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newCollection)
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return newCollection
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else:
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logger.debug(' -- not found')
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raise KeyError(name)
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@classmethod
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def build_name(cls,
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username, collectionname):
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if username is None:
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raise ValueError('Username not supplied')
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if collectionname is None:
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raise ValueError('Collectionname not supplied')
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if '/' in username:
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raise ValueError('Username cannot contain slashes')
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if '/' in collectionname:
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raise ValueError('Collectionname cannot contain slashes')
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if not username:
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raise ValueError('Username cannot be blank')
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if not collectionname:
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raise ValueError('Collectionname cannot be blank')
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return '%s/%s' % (username, collectionname)
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class CollectionMember(models.Model):
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parent = models.ForeignKey(
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Collection,
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on_delete = models.CASCADE,
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)
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member = models.ForeignKey(
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'django_kepi.Thing',
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on_delete = models.DO_NOTHING,
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)
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def __str__(self):
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return ' -- %s %s' % (
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self.parent,
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self.member,
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)
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