Django 上传并显示多张图片

Question

这是我的模型帖子，我想为特定帖子上传多张图片，所以我创建了从 PostPicture 到 Post 的外键。

            class Post(models.Model):
                title = models.CharField(max_length=200, unique=True)
                # image = models.FileField(null = True, blank=True)
                slug = models.SlugField(max_length=200, unique=True)
                author = models.ForeignKey(User, on_delete= models.CASCADE,related_name='blog_posts')
                updated_on = models.DateTimeField(auto_now= True)
                content = models.TextField()
                created_on = models.DateTimeField(auto_now_add=True)
                status = models.IntegerField(choices=STATUS, default=0)
                #code for Thumbnail
                # image = models.ImageField(upload_to = "media", default='DEFAULT VALUE')
                image_thumbnail = ProcessedImageField(upload_to = "thumbnail",
                                                    processors = [ResizeToFill(100,50)],format = 'JPEG',options = {'quality':60},default='DEFAULT VALUE')

           class Meta:
            ordering = ['-created_on']

           def __str__(self):
            return self.title

          #code for uploading multiple images
             class PostPicture(models.Model):
               picture =models.ImageField(upload_to="blog_images", blank=True)
               postid =models.ForeignKey(Post,on_delete=models.CASCADE,related_name='pictures')  

这是我的模板代码，我在其中迭代图片并尝试显示它们。

          {% for i in post.pictures.all %}

              <img src =  "{{ post.pictures.url }}" height = "200", width="200"/>


          {% endfor %}

这是views.py

    def post_detail(request, slug):
        template_name = 'post_detail.html'
        post = get_object_or_404(Post, slug=slug)
        comments = post.comments.filter(active=True)
        new_comment = None
        # Comment posted
        if request.method == 'POST':
            comment_form = CommentForm(data=request.POST)
            if comment_form.is_valid():

                # Create Comment object but don't save to database yet
                new_comment = comment_form.save(commit=False)
                # Assign the current post to the comment
                new_comment.post = post
                # Save the comment to the database
                new_comment.save()
        else:
            comment_form = CommentForm()

        return render(request, template_name, {'post': post,
                                               'comments': comments,
                                               'new_comment': new_comment,
                                               'comment_form': comment_form}
                                               )

我是用admin添加博文，附上ss看看admin。![ ]1

这是 UI 上的输出，我没有让图像显示在这里。

我还添加了目录截图： 谁能帮帮我，我哪里出错了

Answer 1

模板不对。

您在 for 循环中为 src 使用了不正确的变量：

          {% for i in post.pictures.all %}

              <img src =  "{{ i.picture.url }}" height = "200", width="200"/>


          {% endfor %}