Django

Django - a high-level Python Web framework that encourages rapid development and clean, pragmatic design.

Aptana Configuration

• Win-Preferences->PyDev->Editor->Code Completeion: Apply completion on '.' and '('

Install Packages

• Find version: https://pypi.python.org/pypi/

Django CMS

Best Practices:

• Test web pages always with "Preview". When the page is ready see it with "Publish".

Virtualenv

Activate:

• source <your_environment>/bin/activate
• . ~/.environments/<your_environment>/bin/activate

See: Backend Guidelines of Sinnwerkstatt

Virtualenv Wrapper

• Virtualenv Wrapper Docs
  • sudo pip install virtualenvwrapper
  • Add to your .bashrc:
    • export WORKON_HOME=~/path/to/your/virtualenvironments
    • export PROJECT_HOME=~/path/to/your/workspace
    • source /usr/local/bin/virtualenvwrapper.sh
  • Restart your bash
  • To add a project to the wrapper:
    • Cd to your project and activate its virtualenv

    • setvirtualenvproject $VIRTUAL_ENV $(pwd)

    • Then you can use "workon <project_folder_name>" to active and cd to the project.

PIP

• sudo pip install <package_name> - installs the package globally
• pip install <package_name> - installs the package in the current python context (often in the virtualenv)

Tutorials

• Django documentation contents
• Django at a glance
• Models and databases
• Handling HTTP requests

Style Guides

• PEP 8 -- Style Guide for Python Code

Images

• http://www.sandersnewmedia.com/why/2012/04/16/installing-pil-virtualenv-ubuntu-1204-precise-pangolin/ - fix image showing problem.

Configure with PyCharm

• DJANGO_SETTINGS_MODULE

Databases

• Install Databases

~/.environments/<PROJEKT>env/bin/pip install -r requirements.txt

Requirements.txt

On change of the requirements.txt:

• pip install -r requirements.txt
• <ENV> manage.py syncdb
• <ENV> manage.py migrate

Migrations

• Migrate on change of requirements.txt, e.g. new tables are added.
  • <ENV> manage.py syncdb
  • <ENV> manage.py migrate
• Migrate on model change:
  • manage.py schemamigration app_name --auto
  • manage.py migrate app_name
• Django database migration tool: south, explained
• Delete migration
  • manage.py migrate <app_name> <number_of_migration_to_rollback_to>
  • delete file

Internationalization

• How Django discovers translations
• Create or update message files:
  • manage.py makemessages -l de
• Compile:
  • manage.py compilemessages -v 2 -l de
• Compile all:
  • bash compilemessages.sh

If you have problems with translating strings:

• read How Django discovers translation https://docs.djangoproject.com/en/1.5/topics/i18n/translation/#how-django-discovers-translations
• Define in your settings.py to make sure that strings are first read from the directory defined by you:
  • BASEPATH = realpath(join(dirname(_file), '..'))
  • LOCALE_PATHS = (
  • join(BASE_PATH, 'locale'),
  • )
  • Stackoverflow: http://stackoverflow.com/questions/1832709/django-how-to-make-translation-work?rq=1

AJAX

• http://www.dajaxproject.com/

REST

• Django REST Framework

AngularJS

• django-rest-framework and angularjs

Hosting

• https://code.djangoproject.com/wiki/DjangoFriendlyWebHosts
  • http://locum.ru/public/hosting

Sites in Django

• Disqus
• Pinterest
• http://www.djangosites.org/