models.py 文件源码

def do_unique_slug(self, using=DEFAULT_DB):
        """
        Ensures that the slug is always unique for the year this article was
        posted
        """

        if not self.id:
            # make sure we have a slug first
            if not len(self.slug.strip()):
                self.slug = slugify(self.title)

            self.slug = self.get_unique_slug(self.slug, using)
            return True

        return False