擅长:python、mysql、java
<p><a href="http://docs.djangoproject.com/en/dev/topics/db/models/#abstract-base-classes" rel="nofollow noreferrer">Abstract Model</a></p>
<pre><code>class VideoFile(models.Model):
name = models.CharField(max_length=1024, blank=True)
size = models.IntegerField(blank=True, null=True)
ctime = models.DateTimeField(blank=True, null=True)
class Meta:
abstract = True
</code></pre>
<p>也许<a href="http://www.djangoproject.com/documentation/models/generic_relations/" rel="nofollow noreferrer">generic relation</a>对你也有用。</p>