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I am a beginner and did a lot of search but every time I got only "django to html" as search result every time. I am following this tutorial:

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

but on the way I am not able to pass paramter from html to view.py.

Here is my directory:

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directory: mysite:

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directory: books

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directory: 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)

urls.py for books

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'), ]

and urls.py in mysite directory

"""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')), ]

Now the problem is when I type: http://127.0.0.1:8000/books/ it successfully shows the form's textbox and submit button but when I press submit it shows me this:

enter image description here

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  • 1
    You did not define the URL in urls.py. Commented Apr 26, 2016 at 11:59
  • change your form action to be <form action="{% url 'search' %}" method="get"> and never use hardcoded urls in templates. Also i'd suggest to start using class based views Commented Apr 26, 2016 at 12:00
  • it did remove the error but nothing is printing such as in view i have place : "You searched for: %r'" which shd be printing such thing Commented Apr 26, 2016 at 12:02
  • Klaus did u mean i shd declare something in mysite urls? Commented Apr 26, 2016 at 12:03

3 Answers 3

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1

Firstly, you need two different regexes for the search_form and search results. For example:

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

Next, you need to update the form's action to point to the search view. Since you have included your books/urls.py with the /books/ prefix, you need:

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

It is better to use the url tag instead of hardcoding your urls. In this case, you would do:

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

Absolutely correct. Thnx bro. but tell me how to use url tag? instead of hardcoding
I showed you how to use the url tag already - {% url 'search' %}. There's more info about it in the docs.
one thing more why i m getting "u" in the output string: "You searched for: u'java'"
Because you used %r instead of %s.
oh just like C. Thnx
1

In addition to the answer of Alasdair I would use "books:search" for clear namespace:

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

u'books' is not a registered namespace
If you do this, you also have to include the namespace in the url config, i.e. url(r'^books/', include('books.urls', namespace='books')),
0

The url /search/ doesn't exist, you didnt define that it should exist.

It would be /books/ judging from that URLs file you showed. Also on a side note, don't use http://www.djangobook.com/en/2.0/index.html

They have a warning on the main page that it is no longer up to date.

Use masteringdjango.com and other up to date resources.

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