擅长:python、mysql、java
<p>您可以使用model meta选项<code>unique_together</code>:</p>
<pre><code>class Learned(models.Model):
pinyinWord = models.ForeignKey(Pinyin)
user = models.ForeignKey(User)
date = models.DateField()
learned = models.BooleanField()
class Meta:
unique_together = ('user', 'pinyinWord')
</code></pre>