Question

我正在建立一个博客，该博客收集了我最喜欢的视频，很有趣。下面是我的应用程序中的模型：

# I want to categorize the videos
class blog(models.Model):
    name = models.CharField(max_length=255) #name can be dogs, cats, cars
    relatedVideo = models.ForeignKey(video, on_delete=models.CASCADE)

class video(models.Model):
    name = models.CharField(max_length=255) #the video name 
    description = models.TextField()

我是否正确连接了这些？

Answer 1

我认为关系应该是这样的：

class blog(models.Model):
    name = models.CharField(max_length=255) #name can be dogs, cats, cars

class video(models.Model):
    name = models.CharField(max_length=255) #the video name 
    description = models.TextField()
    blog = models.ForeignKey(blog, on_delete=models.CASCADE, related_name="related_videos")

    def __str__(self):
        return self.name

通过此ForeignKey关系意味着，一个博客可以拥有多个视频。您可以这样使用这种关系：

>>b = blog.objects.create(name="Some Name")
>>v1 = video.objects.create(blog=b, name="Video 1")
>>v2 = video.objects.create(blog=b, name="Video 2")
>>b.related_videos.all()
<QuerySet [<video: Video 1>, <video: Video 2>]>

模型关系-ForeignKey还是OneToMany？

1 个答案: