如何在模板Django中使用select_related？

Question

 
class FinalVideo(models.Model): 
    source = models.ForeignKey(UploadedVideo) 
    filename = models.CharField(max_length=100) 

 
class UploadedVideo(models.Model): 
    type = models.CharField(max_length=10) 

在urls.py

：

 
'django.views.generic.list_detail.object_list', {'queryset': FinalVideo.objects.select_related()}, 

模板：

 
{% for object in object_list %} 

如何獲得在模板類型爲每個對象？

Answer 1

是否想通過FinalVideo的對象實例訪問類UploadedVideo的字段「類型」？在urls.py ： 試試這個

'django.views.generic.list_detail.object_list', {'queryset': FinalVideo.objects.select_related("source").all()},

模板

：

 
{% for object in object_list %} 
    {% for uploaded_video in object.source_set.all %} 
     {{ uploaded_video.type }} 
    {% endfor %} 
{% endfor %}