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39 lines
1.0 KiB
39 lines
1.0 KiB
8 years ago
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# coding: utf-8
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from django.db import models
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from django.utils.timezone import now
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from django.utils.translation import ugettext_lazy as _
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class NoDeleteQuerySet(models.query.QuerySet):
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def delete(self):
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return self.update(is_discard=True, discard_time=now())
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class NoDeleteManager(models.Manager):
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def get_all(self):
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return NoDeleteQuerySet(self.model, using=self._db)
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def get_queryset(self):
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return NoDeleteQuerySet(self.model, using=self._db).filter(is_discard=False)
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def get_deleted(self):
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return NoDeleteQuerySet(self.model, using=self._db).filter(is_discard=True)
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class NoDeleteModelMixin(models.Model):
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is_discard = models.BooleanField(verbose_name=_("is discard"), default=False)
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discard_time = models.DateTimeField(verbose_name=_("discard time"), null=True, blank=True)
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objects = NoDeleteManager()
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class Meta:
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abstract = True
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def delete(self):
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self.is_discard = True
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self.discard_time = now()
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return self.save()
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