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Django 第一课

atyu30  2011年10月08日 星期六 01:12 | 1307次浏览 | 0条评论

Django 操作 MySQL 完整案例

根据 The Django Book 实施的,Django 操作 MySQL 完整案例
接收朋友的批评,终于给弄出来了,再次感谢!
环境
RHEL 6.1 X64
[root@gfs03 book]# python
Python 2.6.6 (r266:84292, Apr 11 2011, 15:50:32) 
[GCC 4.4.4 20100726 (Red Hat 4.4.4-13)] on linux2
Type “help”, “copyright”, “credits” or “license” for more information.
»> import django
»> django.VERSION
(1, 2, 5, ‘final’, 0)
»> 
创建项目

[root@gfs03 ~]# django-admin startproject book
[root@gfs03 ~]# cd book/
[root@gfs03 book]# ls
__init__.py  manage.py  settings.py  urls.py
[root@gfs03 book]# vi models.py
[root@gfs03 book]# vi views.py
[root@gfs03 book]# vi urls.py 
[root@gfs03 book]# vi latest_books.html

models.py

Configuration File: /root/book/models.py
#!/usr/bin/env python
# encoding: utf-8

# Author: Atyu30 <ipostfix (at) gmail.com>

from django.db import models
class Book(models.Model):
    name = models.CharField(max_length=50)
    pub_date = models.DateField()


views.py

Configuration File: /root/book/views.py
#!/usr/bin/env python
# encoding: utf-8

# Author: Atyu30 <ipostfix (at) gmail.com>

from django.shortcuts import render_to_response
from models import Book
def latest_books(request):
    book_list = Book.objects.order_by('-pub_date')[:10]
    return render_to_response('latest_books.html', {'book_list': book_list})


urls.py

Configuration File: /root/book/urls.py
from django.conf.urls.defaults import *
import views
# Uncomment the next two lines to enable the admin:
# from django.contrib import admin
# admin.autodiscover()

urlpatterns = patterns('',
    # Example:
    # (r'^book/', include('book.foo.urls')),

    # Uncomment the admin/doc line below to enable admin documentation:
    # (r'^admin/doc/', include('django.contrib.admindocs.urls')),

    # Uncomment the next line to enable the admin:
    # (r'^admin/', include(admin.site.urls)),
    (r'^latest/', views.latest_books),
)


latest_books.html

Configuration File: /root/book/latest_books.html
<html><head><title>Books</title></head>
<body>
<h1>Books</h1>
<ul>
{% for book in book_list %}
<li>{{ book.name }}</li>
{% endfor %}
</ul>
</body></html>


settings.py

Configuration File: /root/book/settings.py
# Django settings for book project.

DEBUG = True
TEMPLATE_DEBUG = DEBUG

ADMINS = (
    # ('Your Name', 'your_email@domain.com'),
)

MANAGERS = ADMINS

DATABASES = {
    'default': {
        'ENGINE': 'mysql', # Add 'postgresql_psycopg2', 'postgresql', 'mysql', 'sqlite3' or 'oracle'.
        'NAME': 'book',                      # Or path to database file if using sqlite3.
        'USER': 'root',                      # Not used with sqlite3.
        'PASSWORD': '',                  # Not used with sqlite3.
        'HOST': 'localhost',                      # Set to empty string for localhost. Not used with sqlite3.
        'PORT': '',                      # Set to empty string for default. Not used with sqlite3.
    }
}

# Local time zone for this installation. Choices can be found here:
http://en.wikipedia.org/wiki/List_of_tz_zones_by_name
# although not all choices may be available on all operating systems.
# On Unix systems, a value of None will cause Django to use the same
# timezone as the operating system.
# If running in a Windows environment this must be set to the same as your
# system time zone.
TIME_ZONE = 'America/Chicago'

# Language code for this installation. All choices can be found here:
http://www.i18nguy.com/unicode/language-identifiers.html
LANGUAGE_CODE = 'en-us'

SITE_ID = 1

# If you set this to False, Django will make some optimizations so as not
# to load the internationalization machinery.
USE_I18N = True

# If you set this to False, Django will not format dates, numbers and
# calendars according to the current locale
USE_L10N = True

# Absolute filesystem path to the directory that will hold user-uploaded files.
# Example: "/home/media/media.lawrence.com/"
MEDIA_ROOT = ''

# URL that handles the media served from MEDIA_ROOT. Make sure to use a
# trailing slash if there is a path component (optional in other cases).
# Examples: "http://media.lawrence.com", "http://example.com/media/"
MEDIA_URL = ''

# URL prefix for admin media -- CSS, JavaScript and images. Make sure to use a
# trailing slash.
# Examples: "http://foo.com/media/", "/media/".
ADMIN_MEDIA_PREFIX = '/media/'

# Make this unique, and don't share it with anybody.
SECRET_KEY = 'sn^ontr8hjzrsnf$yz0eilo*r_0^3adsww-vsl9o5lgw9j90^8'

# List of callables that know how to import templates from various sources.
TEMPLATE_LOADERS = (
    'django.template.loaders.filesystem.Loader',
    'django.template.loaders.app_directories.Loader',
#     'django.template.loaders.eggs.Loader',
)

MIDDLEWARE_CLASSES = (
    'django.middleware.common.CommonMiddleware',
    'django.contrib.sessions.middleware.SessionMiddleware',
    'django.middleware.csrf.CsrfViewMiddleware',
    'django.contrib.auth.middleware.AuthenticationMiddleware',
    'django.contrib.messages.middleware.MessageMiddleware',
)

ROOT_URLCONF = 'book.urls'

TEMPLATE_DIRS = (
    # Put strings here, like "/home/html/django_templates" or "C:/www/django/templates".
    # Always use forward slashes, even on Windows.
    # Don't forget to use absolute paths, not relative paths.
    '/root/book',
)

INSTALLED_APPS = (
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.sites',
    'django.contrib.messages',
    # Uncomment the next line to enable the admin:
    # 'django.contrib.admin',
    # Uncomment the next line to enable admin documentation:
    # 'django.contrib.admindocs',
)


导入数据库

Configuration File: book.sql
-- MySQL dump 10.13  Distrib 5.1.52, for redhat-linux-gnu (x86_64)
--
-- Host: localhost    Database: book
-- ------------------------------------------------------
-- Server version        5.1.52

/*!40101 SET @OLD_CHARACTER_SET_CLIENT=@@CHARACTER_SET_CLIENT */;
/*!40101 SET @OLD_CHARACTER_SET_RESULTS=@@CHARACTER_SET_RESULTS */;
/*!40101 SET @OLD_COLLATION_CONNECTION=@@COLLATION_CONNECTION */;
/*!40101 SET NAMES utf8 */;
/*!40103 SET @OLD_TIME_ZONE=@@TIME_ZONE */;
/*!40103 SET TIME_ZONE='+00:00' */;
/*!40014 SET @OLD_UNIQUE_CHECKS=@@UNIQUE_CHECKS, UNIQUE_CHECKS=0 */;
/*!40014 SET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS, FOREIGN_KEY_CHECKS=0 */;
/*!40101 SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE='NO_AUTO_VALUE_ON_ZERO' */;
/*!40111 SET @OLD_SQL_NOTES=@@SQL_NOTES, SQL_NOTES=0 */;

--
-- Table structure for table `book_book`
--

DROP TABLE IF EXISTS `book_book`;
/*!40101 SET @saved_cs_client     = @@character_set_client */;
/*!40101 SET character_set_client = utf8 */;
CREATE TABLE `book_book` (
  `id` int(11) NOT NULL DEFAULT '0',
  `name` varchar(50) DEFAULT NULL,
  `pub_date` varchar(200) DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=utf8;
/*!40101 SET character_set_client = @saved_cs_client */;

--
-- Dumping data for table `book_book`
--

LOCK TABLES `book_book` WRITE;
/*!40000 ALTER TABLE `book_book` DISABLE KEYS */;
INSERT INTO `book_book` VALUES (1,'The Django Book','2011-10-07'),(2,'The PF Book','2011-10-01');
/*!40000 ALTER TABLE `book_book` ENABLE KEYS */;
UNLOCK TABLES;

/*!40103 SET TIME_ZONE=@OLD_TIME_ZONE */;

/*!40101 SET SQL_MODE=@OLD_SQL_MODE */;
/*!40014 SET FOREIGN_KEY_CHECKS=@OLD_FOREIGN_KEY_CHECKS */;
/*!40014 SET UNIQUE_CHECKS=@OLD_UNIQUE_CHECKS */;
/*!40101 SET CHARACTER_SET_CLIENT=@OLD_CHARACTER_SET_CLIENT */;
/*!40101 SET CHARACTER_SET_RESULTS=@OLD_CHARACTER_SET_RESULTS */;
/*!40101 SET COLLATION_CONNECTION=@OLD_COLLATION_CONNECTION */;
/*!40111 SET SQL_NOTES=@OLD_SQL_NOTES */;

-- Dump completed on 2011-10-07 23:37:28

启动服务

[root@gfs03 book]# python manage.py runserver 0.0.0.0:8000
Validating models...
0 errors found

Django version 1.2.5, using settings 'book.settings'
Development server is running at http://0.0.0.0:8000/
Quit the server with CONTROL-C.

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