39 lines
1.1 KiB
Python
39 lines
1.1 KiB
Python
import copy
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import datetime
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from django.contrib.auth.models import User
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from django.db import models
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class RevisionableModel(models.Model):
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base = models.ForeignKey("self", models.SET_NULL, null=True)
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title = models.CharField(blank=True, max_length=255)
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when = models.DateTimeField(default=datetime.datetime.now)
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def save(self, *args, force_insert=None, force_update=None, **kwargs):
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super().save(
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*args, force_insert=force_insert, force_update=force_update, **kwargs
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)
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if not self.base:
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self.base = self
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super().save(*args, **kwargs)
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def new_revision(self):
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new_revision = copy.copy(self)
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new_revision.pk = None
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return new_revision
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class Order(models.Model):
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created_by = models.ForeignKey(User, models.CASCADE)
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text = models.TextField()
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class TestObject(models.Model):
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first = models.CharField(max_length=20)
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second = models.CharField(max_length=20)
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third = models.CharField(max_length=20)
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def __str__(self):
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return "TestObject: %s,%s,%s" % (self.first, self.second, self.third)
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