Question

如何进入django模型类BlogPageGalleryImage图像或外键或父母键的另一个值？

class BlogPage(Page):
    date = models.DateField("Дата публикации" , default=datetime.date.today  )
    body = RichTextField(blank=True)
    name = models.CharField(max_length=80, default='Лучший')



class BlogPageGalleryImage(Orderable):
    page = ParentalKey(BlogPage, related_name='gallery_images')
    image = models.ForeignKey('wagtailimages.Image', on_delete=models.CASCADE, related_name='+')
    caption = models.CharField(blank=True, max_length=250)
    panels = [
        ImageChooserPanel('image'),
        FieldPanel('caption'),
    ]

class Another(BlogPage):
    page = ParentalKey(BlogPage, related_name='instagram_post')
    Image = BlogPageGalleryImage.objects.get(BlogPageGalleryImage.) 
    caption = models.CharField(blank=True, max_length=250)
    panels = [
        ImageChooserPanel('image'),
        FieldPanel('caption'),
    ]

Answer 1

您似乎希望在BlogPage和Another模板中访问博客页面图片。这可以通过将博客页面图像添加到渲染上下文来实现。要执行此操作，请覆盖get_context方法中的BlogPage：

def get_context(self, request, *args, **kwargs):
    context = super(BlogPage, self).get_context(
       request, *args, **kwargs
    )
    context['images'] = BlogPageGalleryImage.objects.filter(
        page=self,
    )
    return context

这意味着您现在可以在模板中使用{{ images }}访问图像。例如：

{% for i in images %}
    <div class="image">
        {% image i.image %}
        <p>{{ i.caption }}</p>
    </div>
{% endfor %}

Django如何从另一个模型中获取模型的值

1 个答案: