Python Django 和 Ruby Rails的學習【原創】

這是我以前學習Django和Rails寫的文章。總結整理出來。

Python Django

 

wget http://www.djangoproject.com/download/1.3.1/tarball/
tar xzvf Django-1.3.1.tar.gz
cd Django-1.3.1
python setup.py install
在目錄下面建立
在/root/Django-1.3.1 下面建立 hhydjango.py
Code:
import django
print django.get_version()



     
     
     
     
     
     

      
      
      
      
      
      
     
     
     
     
     
     


django-admin.py startproject phperyang (創建一個 django 應用程序 phperyang)
產生文件：
__init__.py
manage.py
settings.py
urls.py
python manage.py runserver 就啓動了（127.0.0.1:8000）
我的以爲settings.py和urls.py很重要
setting.py  使用sqlite 
DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.sqlite3', # Add 'postgresql_psycopg2', 'postgresql', 'mysql', 'sqlite3' or 'oracle'.
        'NAME': '/database.db',# Or path to database file if using sqlite3.
        'USER': '',                      # Not used with sqlite3.
        'PASSWORD': '',                  # Not used with sqlite3.
        'HOST': '',                      # Set to empty string for localhost. Not used with sqlite3.
        'PORT': '',                      # Set to empty string for default. Not used with sqlite3.
    }
}
ADMIN_MEDIA_PREFIX = "yang_admin"
【會在生成的頁面裏面帶有：
<link rel="stylesheet" type="text/css" href="/yang_admin/css/base.css" />
<link rel="stylesheet" type="text/css" href="/yang_admin/css/dashboard.css" />
<!--[if lte IE 7]><link rel="stylesheet" type="text/css" href="/yang_admin/css/ie.css" /><![endif]-->】
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',
    #yang add
    'django.middleware.csrf.CsrfViewMiddleware',
    'django.middleware.csrf.CsrfResponseMiddleware',
)
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.
    '/opt/www/Django-1.3.1/phperyang/templates'
)
等等。。。省略。。。
urls.py
from django.conf.urls.defaults import patterns, include, url

# Uncomment the next two lines to enable the admin:
from django.contrib import admin
admin.autodiscover()

urlpatterns = patterns('',
    # Uncomment the next line to enable the admin:
    (r'^py/$', 'lists.views.index'),
    (r'^py/lists/$', 'lists.views.index'),
    (r'^py/lists/(?P<y_id>\d+)/$', 'lists.views.detail'),
    ....
)
...
在同目錄下創建控制器/數據層文件夾 py 
list.py
...
def yang(request, job_id):
    yangphp = request.POST['msgssssss']
    ver = django.get_version()
    return render_to_response('jobs/msg.html', {'foo': yangphp, "ver" : ver} )
...
新建admin.py 在urls.py中修改路由規則
from jobs.models import Job
from jobs.models import Location
from django.contrib import admin
admin.site.register(a)
admin.site.register(b)


這樣就自動創建了後臺。
[easy_install pysqlite命令]

將Django 部署到正式的Apache 環境上。

安裝mod_python

用httpd –M 來查看apache 是否加載mod_python

注意配置虛擬機：

<Location "/phperyang">   
      SetHandler python-program
      PythonHandler django.core.handlers.modpython
      SetEnv DJANGO_SETTINGS_MODULE phperyang.settings
      PythonPath "['/Django-1.3.1/phperyang', '/Django-1.3.1'] + sys.path"
      PythonDebug Off
</Location>

 

Ruby Rails

install ruby
install gem
注意版本
ruby -v gem -v
安裝rails
gem install rails --include-dependencies 後面的標示依賴包也安裝，也能夠使用 gem install rails -y -v版本號
rails -v
進入到目錄
rails new demo
rails server 啓動rails的歡迎頁面

ruby 1.9.2p180 (2011-02-18) [i386-mingw32]

C:\Documents and Settings\ThinkPad>e:

E:\>cd rubywork

E:\rubywork>rails new demo
      create
      create  README
      create  Rakefile
      create  config.ru
      create  .gitignore
      create  Gemfile
      ...

webbrowse : http://127.0.0.1:3000/ QeePHP的建立App就是仿照Ralis弄...

接着建立DEMO
rails generate controller welcome 建立一個控制器
在confg 中的 routes.rb 增長一行
get "welcome/say" => "welcome#say"

app/controllers
class WelcomeController < ApplicationController
    def say
        @y = " by phper.yang"
    @t = Time.now
        render :y => @y,:t => @t
    end
end
app/views/welcome

建立say.html.erb
<h1>Hello, World!Ruby Rails</h1>
<p>Hola! It's <%= @t %></p>
<%= @y %>

將Rails 部署到正式的Apache 環境上。

gem install passenger

passenger-install-apache2-module 

安裝完成後會有提示，安裝成功了，提示怎麼修改Apache的虛擬機配置

   <VirtualHost *:80>

      ServerName www.yourhost.com

      DocumentRoot /somewhere/public    # <-- be sure to point to 'public'!

      <Directory /somewhere/public>

         AllowOverride all              # <-- relax Apache security settings

         Options -MultiViews            # <-- MultiViews must be turned off

      </Directory>

   </VirtualHost>

根據提示安裝就好

這樣apache 就支持rails了。