==============================
Dring 93 - Ubuntu 10.04
==============================

1 - Database creation
2 - Virtualenv installation
3 - Settings
4 - Database synchronization
5 - .htaccess files
6 - WSGI script file


1 - Database creation
======================
Create a database in Postgres:
  createdb -U username -W -h 127.0.0.1 d

Access to te database in Postgres:
  psql -U username -W -h 127.0.0.1 dbname

\d to view the list of all relations


2 - Virtualenv installation
============================
Run the bootstrap script generator:
  python create_python_env.py 

Run project-boot.py this way:
  python hg/dring93/sbin/virtualenv/project-boot.py --no-site-packages --setuptools --unzip-setuptools --type-install=local --ignore-packages=MYSQL path/to/env/Env

To activate the environment:
  source path/to/env/Env/bin/activate



3 - Settings
=============
Enter the db settings in dring93/web/dring93/config.py:
DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.postgresql_psycopg2',
        'NAME': 'dbDring',
        'USER': 'iriuser', 
        'PASSWORD': 'iriuser',
        'HOST': 'localhost',
        'PORT': '5432',
    }
}

Change the URL paths:
BASE_URL = '/dev/~user/dring93/'
WEB_URL = 'http://www.iri.centrepompidou.fr/'


In your public_html, create a symbolic link that points to the application:
  ln -s path/to/project/dring93 dring93


4 - Database synchronization
=============================
Synchronize the database, in dring93/web/dring93:
  python manage.py syncdb


5 - .htaccess files
====================
Write dring93/web/.htaccess:

# Permanent redirection to dring93/franculture
RedirectMatch permanent /~user/dring93/?$ /~user/dring93/dring93


Write dring93/web/dring93/.htaccess:

# Set environmental variables used in the wsgi file
SetEnv DJANGO_SETTINGS_MODULE dring93.settings
SetEnv PY_USE_XMLPLUS true
SetEnv PROJECT_PATH /path/to/project/dring93/web
SetEnv PYTHON_PATH /path/to/virtual/environment/Env/lib/python2.6/site-packages

Options ExecCGI FollowSymLinks
SetHandler wsgi-script

RewriteEngine On
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule ^(.*)$ /path/to/wsgiscript/modwsgi.wsgi/$1 [QSA,PT,L]

# html cache options
Header set Pragma "no-cache"
Header set Cache-Control "no-cache"
Header set Expires "-1"



6 - WSGI script file
======================

Write the WSGI file modwsgi.wsgi

import os, sys, site

def application(environ, start_response):
        os.environ['DJANGO_SETTINGS_MODULE'] = environ['DJANGO_SETTINGS_MODULE']
        os.environ['PY_USE_XMLPLUS'] = environ['PY_USE_XMLPLUS']

        sys.path.append(environ['PROJECT_PATH'])
        site.addsitedir(environ['PYTHON_PATH'])

        import django.core.handlers.wsgi
        _application = django.core.handlers.wsgi.WSGIHandler()

        return _application(environ, start_response)


Notes:
- The 'environ' argument is unrelated to the 'os.environ' argument. It catches the variables that were defined with 'SetEnv' in the .htaccess file.
- 'sys.path.append' adds the project path to the PYTHONPATH
- 'site.addsitedir' activates the virtual environment