django查询去重

from django.db.models import Q
books = Book.objects.filter(Q(title__icontains=key) |
                                Q(author__icontains=key) |
                                Q(translators__icontains=key) |
                                Q(tags__name__icontains=key)
                                ).order_by('-avg_mark')

查询出来的结果会有重复的

使用distinct做去重处理，代码如下：

books = Book.objects.filter(Q(title__icontains=key) |
                                Q(author__icontains=key) |
                                Q(translators__icontains=key) |
                                Q(tags__name__icontains=key)
                                ).distinct().order_by('-avg_mark')