找不到带有参数“('',)”的“ about_abc”

时间:2019-04-25 10:03:58

标签: python django django-templates django-views django-urls

我正在尝试设置网络应用。我在将host_id传递到模板.html文件时遇到问题

我得到:

Reverse for 'about_abc' with arguments '('',)' not found. 1 pattern(s) tried: ['itpassed\\/(?P<host_id>[0-9]+)\\/about\\/$']

inter.html

<li><a href="{% url 'about_abc' host_id %}">about</a></li>

当我使用“ 1”而不是“ host_id”时,它可以工作,但不能像这样保持硬编码。

views.py

from django.shortcuts import render
import warnings
import requests
import json
from django.http import HttpResponse
from django.template import loader
from .models import Host
[...]

def inter(request, host_id):
    return render(request, 'itpassed/inter.html')

def about_abc(request, host_id):
    response = requests.get(
        'abc.net:1768/abc/api/v1/about',
        verify='/cert/cacerts.pem',
        headers={'Accept': 'application/json', 'Authorization': 'Basic xxxxxxxxxxxxxxxxxxxxxx'},
    )
    return HttpResponse(response.content)

urls.py

from django.urls import path
from .models import Host
from . import views

urlpatterns = [
    path('', views.index, name='index'),
    path('<int:host_id>/', views.inter, name='inter'),
    path('<int:host_id>/about/', views.about_abc, name='about_abc'),
]

如何解决此问题?据我所见,views.py应该将host_id传递给模板。 为什么硬编码的“ 1”有效,但host_id无效? 谢谢

1 个答案:

答案 0 :(得分:2)

def inter(request, host_id):
    return render(request, 'itpassed/inter.html')

您在此处没有将任何内容传递给inter.html模板-因此host_id模板变量将不包含任何值。

我相信您想要这个:

def inter(request, host_id):
    return render(request, 'itpassed/inter.html', {"host_id": host_id})