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我試着寫在Django一個抽象父模型,這將有助於我作出從名領域許多其他兒童模特一些蛞蝓場。它使用trans編碼,它適用於將西裏爾字母轉換爲拉丁字母。然後它使用django的slugify函數來清除垃圾。Django的抽象父模型保存首要
class SlugModel(models.Model):
class Meta:
abstract = True
name = models.CharField(max_length=128, default=u'')
slug = models.CharField(max_length=128,blank=True)
def save(self, *args, **kwargs):
if not self.slug:
slug = slugify(unicode(self.name).encode('trans'))
else:
slug = self.slug
count = self.__class__.objects.filter(slug = slug).count()
if count > 1:
if slug[-2]=='_':
count = int(slug[-1])
slug = slug[:-2]
self.slug = '{0}_{1}'.format(slug,count+1)
else:
self.slug = slug
super(self.__class__, self).save(*args, **kwargs)
def __unicode__(self):
return self.name
class Foo(SlugModel):
pass
的問題,當我試圖挽救一些Foo對象發生:它會導致RuntimeError(最大遞歸深度超過)。我究竟做錯了什麼?我如何正確書寫super(self.__class__, self).save(*args, **kwargs)
?
看看這個問題(一個副本)的答案:http://stackoverflow.com/questions/10948132/abstract-inheritance-in-django-model-causing-max-recursion-depth-error – mjjohnson