Multiple Inserts with a Subquery | Code Spatter

Multiple Inserts with a Subquery | Code Spatter

Django Dynamic Formset

I posted Previously about this jquery plugin. I have just figured out a very plugable way to get this working in the admin with adding just one form.

Add the following to templates/admin/APP/MODEL/change_form.html and also update the MODEL in the prefix setting.

{% extends "admin/change_form.html" %}
{% load i18n admin_modify adminmedia %}
{% block extrahead %}
{{ block.super }}

  // Define this so we don't have to bother with the admin jsi18n stuff:
  function gettext(msgid) { return msgid; }

  $(function() {
      $('.inline-related tbody tr').formset({
   prefix: 'MODEL_set',
   addText: 'Add',
   deleteText: 'Delete',
  });
  });

  .add-row {
      padding-left:18px;
      background:url({% admin_media_prefix %}img/admin/icon_addlink.gif) no-repeat left center;
  }
  .delete-row {
      float:right;
      display:block;
      padding-left:18px;
      background:url({% admin_media_prefix %}img/admin/icon_deletelink.gif) no-repeat left center;
  }

{% endblock %}

Thanks Stanislaus

Django Dynamic Formset

philomat's django-form-designer at master - GitHub

philomat's django-form-designer at master - GitHub

Download SpeedFan - Access temperature sensor in your computer

Download SpeedFan - Access temperature sensor in your computer

howto:chroot_debian - DNS323Wiki

Installing debian on the DLink DNS323 NAS is really easy, just download and extact the files to the root directory and restart it.

Default password is 12345678 make sure you reset it.

Also update your /etc/apt/source.list to lenny and apt-get update (don't forget to apt-get install debian-archive-keyring)

Files

http://mesh.dl.sourceforge.net/sourceforge/debnas/debnas-0.5.tar.bz2

Instructions

howto:chroot_debian - DNS323Wiki

XMBC and PowerDVD HTPC

Power DVD shortcut keys
PowerDVD Ultra Keyboard Shortcuts

XBMC Launcher
http://code.google.com/p/xbmc-launcher/wiki/Main

Intel Board
http://www.ncix.com/products/?sku=32612&vpn=BOXDG45FC&manufacture=Intel

Howto: Make RML templates from Openoffice.org ODT files | SOASI

Howto: Make RML templates from Openoffice.org ODT files | SOASI

Django Cheat Sheet

A very good cheat sheet include Time and Date info

django-dynamic-formset

A nice simple jquery plugin to make dynameic formsets django-dynamic-formset

Source interface with Python and urllib2 - Stack Overflow

A monkey patch to change your source interface with python Source interface with Python and urllib2

import socket
true_socket = socket.socket
def bound_socket(*a, **k):
    sock = true_socket(*a, **k)
    sock.bind((sourceIP, 0))
    return sock
socket.socket = bound_socket

SplitSettings - Django

No sure why they don't set this up by default but the best way to setup your media and template paths is:

DIRNAME = os.path.abspath(os.path.dirname(__file__))
DATABASE_NAME = os.path.join(DIRNAME, 'project.db')
MEDIA_ROOT = os.path.join(DIRNAME,'media')
TEMPLATE_DIRS = (
    os.path.join(DIRNAME,'templates'),
)

SplitSettings - Django - Trac

Inlines support for Django generic views

Django generic views are missing one major feature, inline forms. This class is a drop in that adds the functionality. Wad of Stuff: Inlines support for Django generic views

How to use *args and **kwargs in Python

A good example of kwargs and args How to use *args and **kwargs in Python

Lazy choices in Django form

A cool library that django has the doesn't seem to be documented very well

from django.utils.functional import lazy

class CarSearchForm(forms.Form):  
    # lots of fields like this
    bodystyle = forms.ChoiceField(choices=lazy(bodystyle_choices, tuple)())

Lazy choices in Django form - Stack Overflow

Python get IP of interface

Recipe 439094: get the IP address associated with a network interface (linux only)

Simple Python ping method

def ping(host):
    result = subprocess.call(["ping","-c","1",host],stdout=subprocess.PIPE,stderr=subprocess.PIPE)
    if result == 0:
        return True
    elif result == 1:
        raise Exception('Host not found')
    elif result == 2:
        raise Exception('Ping timed out')

useage:

try:
    ping('192.168.100.100')
except Exception:
    print "Ping error"
    raise

Django/Eclipse Debug

This is a sweet setup for Django development with eclipse to use debug to run manage.py runserver YouTube - Django/Eclipse Debug

search and replace with regular expressions in eclipse

Found a great way to do dynamic search and replace in eclipse. search and replace with regular expressions in eclipse

Foreign Key in Hidden Field

In order to have a hidden foreign key your in your form class you need to specify:

class PlanForm(forms.ModelForm):    
    owner = forms.ModelChoiceField(label="",queryset=Profile.objects.all(),widget=forms.HiddenInput())

Class definition order between two related classes

I ran into an issue where I wanted to have a foreign key to one class then over ride the save in the other class to update the current class. It would through and error because one of the classes was not defined. I finally found this post Class definition order between two related classes and see that you can but the models name in quotes in the foreign key. example:

class Foo(models.Model):
    bar = models.ForeignKey("Bar")
    name = models.CharField(max_length=100)

class Bar(models.Model):
    name = models.CharField(max_length=100)
    def save(self):
        foos = Foo.objects.filter(item=self)         
        foos.update(name=self.name)
        super(Bar, self).save()