django中搜索表单

最新推荐文章于 2024-08-06 19:54:10 发布

robinliu2010

最新推荐文章于 2024-08-06 19:54:10 发布

阅读量1k

点赞数

分类专栏： django 文章标签： django query import email class html

django 专栏收录该内容

31 篇文章

订阅专栏

http://www.qwolf.com/?p=162

1.搜索
(1) 在URLconf (mysite.urls )添加搜索视图。
(r’^search/$’,'mysite.books.views.search’)
(2) 在视图模块(mysite.books.views )中写这个 search 视图

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19

from django. db. models import Q
from django. shortcuts import render_to_response
from books. models import Book

def search (request ):
query = request. GET. get ( 'q' , '' )
if query:
qset = (
Q (title__icontains =query ) |
Q (authors__first_name__icontains =query ) |
Q (authors__last_name__icontains =query )
)
results = Book. objects. filter (qset ). distinct ( )
else:
results = [ ]
return render_to_response ( "books/search.html" , {
"results": results ,
"query": query
} )

(3)添加模板

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28

< !DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN">
<html lang="en">
<head>
<title>Search{% if query %} Results{% endif %} </title>
</head>
<body>
<h1>Search </h1>
<form action="." method="GET">
<label for="q">Search: </label>
<input type="text" name="q" value="{{ query|escape }}"/>
<input type="submit" value="Search"/>
</form>

{% if query %}
<h2>Results for "{{ query|escape }}": </h2>

{% if results %}
<ul>
{% for book in results %}
<li>{{ book|escape }}
{% endfor %}
</li></ul>
{% else %}
<p>No books found </p>
{% endif %}
{% endif %}
</body>
</html>

2.回馈表单
（1）添加URL (r’^contact/$’, ‘mysite.books.views.contact’)
（2）在books目录下建forms.py 文件

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22

#!/usr/local/bin/python
# coding: utf-8

from django import forms

TOPIC_CHOICES = (
( 'general' , 'General enquiry' ) ,
( 'bug' , 'Bug report' ) ,
( 'suggestion' , 'Suggestion' ) ,
)

class ContactForm (forms. Form ):
topic = forms. ChoiceField (choices =TOPIC_CHOICES )
message = forms. CharField ( )
sender = forms. EmailField (required = False )
#自定义验证
def clean_message ( self ):
message = self. cleaned_data. get ( 'message' , '' )
num_words = len (message. split ( ) )
if num_words < 4:
raise forms. ValidationError ( "Not enough words!" )
return message

此处需注意添加顶端两行，否则中文注释会出错
（3）添加视图函数

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22

from django. http import HttpResponseRedirect
from django. shortcuts import render_to_response
from forms import ContactForm
from django. core. mail import send_mail
def contact (request ):
if request. method == 'POST':
form = ContactForm (request. POST )
if form. is_valid ( ):
topic = form. cleaned_data [ 'topic' ]
message = form. cleaned_data [ 'message' ]
sender = form. cleaned_data. get ( 'sender' , 'noreply@example.com' )
send_mail (
'Feedback from your site, topic: %s' % topic ,
message , sender ,
[ 'xuzhibin@mail.39.net' ]
)
return HttpResponseRedirect ( '/contact/thanks/' )

else:
form = ContactForm ( )

return render_to_response ( 'contact.html' , { 'form': form } )

为使发email成功，需配置settings.py

1
2
3
4
5

EMAIL_HOST =127.0.0.1 ' #你的smtp 服务器ip 地址或名称
EMAIL_PORT=None #不处理就用Noe，否则指明port
EMAIL_HOST_USER=' ' #现在大部分邮箱都要求你输入邮箱的全名
EMAIL_HOST_PASSWORD=' ' #你的口令
EMAIL_USE_TLS=None #不处理就用None

（4）添加模板

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29

< !DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN">
<html lang="en">
<head>
<title>Contact us </title>

</head>
<body>
<h1>Contact us </h1>
<form action="." method="POST">
<div class="fieldWrapper">
{{ form.topic.errors }}
<label for="id_topic">Kind of feedback: </label>
{{ form.topic }}
</div>
<div class="fieldWrapper">
{{ form.message.errors }}
<label for="id_message">Your message: </label>
{{ form.message }}
</div>
<div class="fieldWrapper">
{{ form.sender.errors }}
<label for="id_sender">Your email (optional): </label>
{{ form.sender }}
</div>
<p><input type="submit" value="Submit"/></p>
</form>

</body>
</html>

3. 从模型创建表单
（1）创建URL
(r'^add_publisher/$', 'mysite.books.views.add_publisher')
（2）在forms.py创建一个新Form

1
2
3
4
5

from django import forms
from models import *
class PublisherForm (forms. ModelForm ):
class Meta:
model = Publisher

（3）创建视图函数

1
2
3
4
5
6
7
8
9
10

from forms import ContactForm ,PublisherForm
def add_publisher (request ):
if request. method == 'POST':
form = PublisherForm (request. POST )
if form. is_valid ( ):
form. save ( )
return HttpResponseRedirect ( '/add_publisher/thanks/' )
else:
form = PublisherForm ( )
return render_to_response ( 'books/add_publisher.html' , { 'form': form } )

（4）创建模板文件

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15

< !DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN">
<html lang="en">
<head>
<title>Add Publisher </title>
</head>
<body>
<h1>Add Publisher </h1>
<form action="." method="POST">
<table>
{{ form.as_table }}
</table>
<p><input type="submit" value="Submit"/></p>
</form>
</body>
</html>


转载请注明来源：http://www.qwolf.com/?p=162