我有一个 Django 应用程序,其中有 Post 和 PostImage 模型。
每个 Post 有多个 PostImage。
在 Post add 页面中,我有 Post 和 PostImages 的表单。我已将表单集用于 PostImages。这是视图的代码:
def post_new(request, template_name="posts/new.html"):
post_form = Post(request.POST or None, request.FILES or None)
PostImageFormSet = formset_factory(PostImageForm, extra=1)
post_image_formset = PostImageFormSet(request.POST or None, request.FILES or None, prefix='post_images')
if post_form.is_valid() and post_image_formset.is_valid():
post = post_form.save(commit=False)
post.save()
for post_image_form in post_image_formset:
post_image = post_image_form.save(commit=False)
post_image.post = post
post_image.save()
redirect_url = urlresolvers.reverse('post_show')
return HttpResponseRedirect(redirect_url)
form_data = {'post_form': post_form, 'post_image_formset': post_image_formset}
csrfContext = RequestContext(request, form_data)
return render_to_response(template_name, csrfContext)
我使用 jQuery 为 PostImage 添加更多表单,它工作得非常好,我可以创建一个包含任意数量图像的帖子。
现在,我希望我的 post_edit 页面以类似的方式工作。这是我的 post_edit 视图方法的代码:
def post_edit(request, post_slug, template_name="developers/posts/edit.html"):
post = get_object_or_404(post, slug=post_slug)
post_images = PostImage.objects.filter(post_id=post.id)
count = len(post_images)
post_form = postForm(request.POST or None, request.FILES or None, instance=post)
postImageFormSet = formset_factory(postImageForm, extra=count)
post_image_formset = postImageFormSet(request.POST or None, request.FILES or None, prefix='post_images')
for post_image_form, post_image in zip(post_image_formset.forms, post_images):
post_image_form.initial = post_image
if post_form.is_valid():
post_form.save()
redirect_url = urlresolvers.reverse('developer_post_show', args=[post_slug])
return redirect(redirect_url)
form_data = {'post_form': post_form, 'post_image_formset': post_image_formset}
csrfContext = RequestContext(request, form_data)
return render_to_response(template_name, csrfContext)
这是我的编辑页面模板:
{% extends "base.html" %}
{% block content %}
{% load thumbnail %}
{% if error_message %} <p><strong>{{ error_message }}</strong></p> {% endif %}
{{ post_form.errors }}
<div style="width: 80%; margin: 0 auto;">
<form action="" method="post">
{% csrf_token %}
<div>
... Post related HTML
</div>
<div class="post-images" style="clear: both;">
{% for post_image_form in post_image_formset %}
<div>
{{ post_image_form.caption }}
</div>
{% endfor %}
</div>
<div style="clear: both; position: relative; left: 320px;">
<input type="submit" value = "Update post" />
</div>
</form>
</div>
{% endblock %}
我在模板中收到错误消息:
'PostImage' 对象没有属性 'get'
在我的模板中,我迭代了post_image_formset对象,它迭代了 3 次,这是正确的,因为该特定帖子有 3 张图像。但我仍然得到这个错误。任何人都可以帮忙吗?
谢谢。