DeleteView有2个论点和用户 [英] DeleteView with 2 arguements post and user

问题描述

我有一个删除视图，其中有 2 个条件为 post和 user。

I have a delete view with 2 conditions "post" and "user".

<$ c满足了用户要求$ c> self.object.user = self.request.user ，发布要求由 slug = self.kwargs ['slug'] 满足（我认为这可能是罪魁祸首）

The user requirement is fulfilled by self.object.user = self.request.user and post requirement is fulfilled by slug = self.kwargs['slug'](I think this may be the culprit)

我的观点正确吗？

我对 python ，请原谅任何愚蠢的错误。

I am new to python please forgive any silly mistakes.

Views.py

class ProofDelete(LoginRequiredMixin, DeleteView):
    model = Proof

    def delete(self, *args, **kwargs):
        return super().delete(*args, **kwargs)

    def get_success_url(self, *args, **kwargs):
        slug = self.kwargs['slug']
        print(slug)
        obj = get_object_or_404(Post, slug=slug)
        url_ = obj.get_absolute_url()
        user = self.request.user
        if user.is_authenticated():
            if user in obj.made.all():
                obj.made.remove(user)
            else:
                obj.made.add(user)
        return url_

models.py

models.py

User = get_user_model() 
class Proof(models.Model):
    user = models.ForeignKey(User, related_name='proofmade')
    post = models.ForeignKey(Post, related_name='proofmade')
    made_at = models.DateTimeField(auto_now=True)
    image_of_proof= models.ImageField()
    proof_ = models.ImageField()
    suggestions = models.TextField(max_length=1000)

def __str__(self):
    return self.post.title

urls.py

    app_name = 'proof'

    urlpatterns = [

        url(r'^new_proof/(?P<slug>[-\w]+)/$', views.ProofCreate.as_view(), name='new_proof'),

        url(r'^proof_delete/(?P<pk>\d+)/$', views.ProofDelete.as_view(),name='proof_delete'),

也尝试过

url (r'^proof_delete/(?P<slug>[-\w]+)/(?P<pk>\d+)/$', views.ProofDelete.as_view(), name='proof_delete'),

我得到以下错误。指示视图中的错误

I get the below error. Indicating error in the views

错误消息单击以查看错误消息

Same error message after scrolling down. Click to open

推荐答案

答案在模板中。在 if语句之后添加forloop解决了该问题。这样做可以处理Url的两个参数。 post模型的 slug和 proof模型的 pk。没有forloop几乎不可能满足URL的两个参数

The answer was in the templates. Adding a forloop after the "if" statement solved the issue. Doing this handles both arguments of the Url. "slug" of "post" model and "pk" of the "proof" model. Without the forloop It was almost impossible to satisfy both arguments of the URL

感谢 Paulo Almeida，正确的网址

The correct Url thanks to "Paulo Almeida"

url (r'^proof_delete/(?P<slug>[-\w]+)/(?P<pk>\d+)/$', views.ProofDelete.as_view(), name='proof_delete') 

下面是模板

{% if user in post.made.all %}
    {% for proof in user.proofmade.all %}
        <a href="{% url 'proof:proof_delete' slug=post.slug pk=proof.pk %}">
            <img src="{% static 'images/thumbs_up_RED.png' %}" height="25px">
        </a><br/>
    {% endfor %}
{% else %}
    <a href="{% url 'proof:new_proof' slug=post.slug %}">
        <img src="{% static 'images/thumbs_up_BLANK.png' %}" height="25px">
    </a><br/>
{% endif %}

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