擅长:python、mysql、java
<p>我现在还没有Django在我面前,但是像这样的东西呢:</p>
<pre><code>class Person(models.Model):
pass
class Book(models.Model):
year_published = models.PositiveIntegerField()
author = models.ForeignKey(Person, related_name='books')
class MusicAlbum(models.Model):
year_published = models.PositiveIntegerField()
producer = models.ForeignKey(Person, related_name='albums')
Person.objects.filter(books__year_published__gte=2018, albums__year_published__gte=2018)
</code></pre>
<p>或者,如果你要做前两个查询</p>
^{pr2}$