Web Oom » django

What is google app engine?

weboom — Thu, 31 Dec 2009 06:42:00 +0000

Google App Engine lets you run your web applications on Google’s infrastructure.

It is kind of web hosting server I think.
Django can be also served with google app engine.

Restart apache server after change (in webfaction)

weboom — Tue, 01 Dec 2009 07:40:10 +0000

After you made changes,
to see its effect,
execute restart under apache2/bin/
>/home/pyncus/webapps/django11/apache2/bin/restart

How to install Django in linux

weboom — Tue, 01 Dec 2009 05:33:01 +0000

First, download Django-1.1.1.tar.gz. Then:

tar xzvf Django-1.1.1.tar.gz
cd Django-1.1.1
sudo python setup.py install

Django friendly Web hosting service

weboom — Mon, 14 Sep 2009 16:34:07 +0000

When I have been surfing around django sites, I saw many webfaction service advertised.

For my new project, I just started to search for web hosting service and finally decided to go with Webfaction.

The major concern I had in choosing webfaction was limited disk space and bandwidth.

However, I realized that anyway my website will have low traffic and need less amount of disk space in the beginning.

The positive perspectives were

1. many positive reviews and happy customers

2. the most django-friendly service, easy setup and they can also support mod_python (most other sites seem to support fastcgi only)

3. it has subversion support

This is beginning and I don’t know much about running the website. But let’s see how it works out!

Django development from usb drive

weboom — Thu, 10 Sep 2009 17:57:10 +0000

I found an interesting python development method that can be done from a usb drive.

portable python

portableapps.com has many interesting apps:

1. commandprompt portable

2. notepad++ portable

3. sumatrapdf portable

4. putty portable

5. winscp portable

etc.

After installing portablepython

execute

SPE-Portable.exe

open manage.py

and run (F9) with argument “runserver”

Do you want to use datetime.datetime.now ?

weboom — Tue, 04 Aug 2009 07:49:13 +0000

Then,

import datetime

'CityAdmin.list_display' must be a list or tuple.

weboom — Mon, 03 Aug 2009 05:36:10 +0000

You may get the above error message in

—-

from biz.models import Entry, City, Category

class CityAdmin(admin.ModelAdmin):
list_display = (‘name’)
admin.site.register(City, CityAdmin)

———

to fix,

list_display = (‘name’,)

How to pass extra options to view functions?

weboom — Sun, 02 Aug 2009 19:31:19 +0000

In urls.py

urlpatterns = patterns(’mysite.bizcard.views’,
(r’^about$’, views.simple, {‘template_name’:'about.html’}),
(r’^help/$’, views.simple, {‘template_name’:'help.html’}),

)

In views.py

def simple(request, template_name):

return render_to_response(template_name, {‘book_list’:Book.objects.all()})

——–

Note here that single view function can render multiple template files.

named group vs. non-named group

weboom — Sun, 02 Aug 2009 19:25:10 +0000

(r’^articles/(\d{4})/(\d{2})/$’, month_archive)

vs.

(r’^articles/(?P\d{4})/(?P\d{2})/$’, month_archive)

The first one: positional argument

The second one: keyword argument

For example, a request to

/articles/2009/10/

would result in

1. month_archive (request, ’2009′,’10′)

2. month_archive(request, year=’2009′, month=’10′)

How to delete objects?

weboom — Sun, 02 Aug 2009 05:58:00 +0000

Use

delete() method

—–

e.g.,

>>>Card.objects.get(name=’Hot Pot’).delete()

>>>Card.objects.filter(city=’USA’).delete()

>>>Card.objects.all().delete()

Note that

>>>Card.objects.delete()

is not working.