models.py 文件源码

def save(self, *args, **kwargs):
        """
        Update the display title with the title, if blank
        """
        if self.display_title in [None, '']:
            self.display_title = self.title
        if self.slug in [None, '']:
            self.slug = slugify(self.title)
        super(Project, self).save(*args, **kwargs)