如何将参数从html发送到django view.py

时间:2016-04-26 11:46:54

标签: python html django

我是一名初学者并且进行了很多搜索,但每次我只得到“django to html”作为搜索结果。我正在学习本教程:

http://www.djangobook.com/en/2.0/chapter07.html

但在途中我无法将参数从html传递给view.py。

这是我的目录:

enter image description here

目录:mysite:

enter image description here

目录:书籍

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目录:templates

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search_form.html

<html>
<head>
    <title>Search</title>
</head>
<body>
    <form action="/search/" method="get">
        <input type="text" name="q">
        <input type="submit" value="Search">
    </form>
</body>
</html>

views.py

from django.shortcuts import render
from django.http import HttpResponse
def search_form(request):
    return render(request, 'books/search_form.html')

def search(request):
    if 'q' in request.GET:
        message = 'You searched for: %r' % request.GET['q']
    else:
        message = 'You submitted an empty form.'
    return HttpResponse(message)
书籍

urls.py

from django.conf.urls import url,include
from . import views
urlpatterns = [
    url(r'^$',views.search_form,name='search_form'),
               url(r'^$', views.search,name='search'),

]

和mysite目录中的urls.py

"""mysite URL Configuration

The `urlpatterns` list routes URLs to views. For more information please see:
    https://docs.djangoproject.com/en/1.9/topics/http/urls/
Examples:
Function views
    1. Add an import:  from my_app import views
    2. Add a URL to urlpatterns:  url(r'^$', views.home, name='home')
Class-based views
    1. Add an import:  from other_app.views import Home
    2. Add a URL to urlpatterns:  url(r'^$', Home.as_view(), name='home')
Including another URLconf
    1. Add an import:  from blog import urls as blog_urls
    2. Import the include() function: from django.conf.urls import url, include
    3. Add a URL to urlpatterns:  url(r'^blog/', include(blog_urls))
"""
from django.conf.urls import url,include
from django.contrib import admin

urlpatterns = [
    url(r'^admin/', admin.site.urls),
    url(r'^books/', include('books.urls')),
]

现在问题是我输入的内容:http://127.0.0.1:8000/books/ 它成功显示了表单的文本框和提交按钮,但是当我按提交时,它显示了我:

enter image description here

3 个答案:

答案 0 :(得分:1)

首先,search_formsearch结果需要两个不同的正则表达式。例如:

url(r'^$',views.search_form,name='search_form'),
url(r'^search/$', views.search,name='search'),

接下来,您需要更新表单的操作以指向搜索视图。由于您已将books/urls.py包含/books/前缀,因此您需要:

<form action="/books/search/" method="get">

最好使用url标记而不是硬编码您的网址。在这种情况下,你会这样做:

<form action="{% url 'search' %}" method="get">

答案 1 :(得分:1)

除了Alasdair的回答,我还会使用&#34; books:search&#34;清除命名空间:

<form action="{% url 'books:search' %}" method="get">

答案 2 :(得分:0)

网址/搜索/不存在,你没有定义它应该存在。

这将是/书籍/从您显示的URL文件判断。另外,请注意,不要使用http://www.djangobook.com/en/2.0/index.html

他们在主页面上发出警告,警告它不再是最新的。

使用masteringdjango.com和其他最新资源。