Bold dream » Default

What we want isn’t always what we need

Emil Vladev — Tue, 02 Mar 2010 22:42:48 +0000

I found this amazing image stream on flickr (via):

Django AttributeError: type object ‘*Inline’ has no attribute ‘date_hierarchy’

Emil Vladev — Fri, 29 Jan 2010 10:18:32 +0000

I work on a simple Django Q&A app and decided that Questions and Answers should be on the same page in the admin. Django already provides that using inlines, but after using it a strange error started appearing (usually on server restart or code reload).

type object 'AnswerInline' has no attribute 'date_hierarchy'

After a bit of digging, I found that I was registering the AnswerInline with the admin, which was not necessary – it was already in the inlines attribute of QuestionAdmin.

Here is the code:

from django.contrib import admin
 
from questions.models import Question, Answer
 
class AnswerInline(admin.TabularInline):
    model = Answer
 
class QuestionAdmin(admin.ModelAdmin):
    model = Question
    inlines = (AnswerInline,)
 
admin.site.register(Question, QuestionAdmin)
admin.site.register(Answer, AnswerInline) # This line is not necessary and causes the problem

Guy Kawasaki’s Art Of The Start presentation

Emil Vladev — Wed, 13 Jan 2010 10:05:28 +0000

Just finished watching this presentation of Guy Kawasaki. Simple advice – whatever you do for a living – Watch It!

Also, if you can, grab a copy of his book The Art of the Start. It’s the best 200 pages of entrepreneur advices you can get.

Fixing PDF printer on Ubuntu 9.10 after update

Emil Vladev — Fri, 11 Dec 2009 14:15:20 +0000

On my computer at work the pdf printer has been broken for a while and today, happily, I found a way to fix it.

Go to System → Administration → Printing and delete the pdf printer.
Create the ~/PDF folder if it does not exists
Run sudo aptitude reinstall cups-pdf to reinstall it.
Add a pdf printer again using the wizard.
Profit. :)

Fixing QT fonts in Ubuntu 9.10 Keramic

Emil Vladev — Thu, 12 Nov 2009 19:51:05 +0000

A few days ago I decided to bite the bullet and update Ubuntu. The last time I did this it caused me quite a lot of frustration – but amazingly this time it was almost painless. The wireless stopped working but I managed to get it back in about 30 minutes. The other thing was Qt fonts (the fonts in skype or qbittorrent). After a bit of searching and a few false attempts I managed to fix it.

The fix¹ is quite simple, actually – just paste the following code in ~/.fonts.conf. This settings seem to work, unlike the many I tried before that.

 version="1.0"?>

>
  target="font">
   name="rgba" mode="assign">
    >rgb>
  >
   name="antialias" mode="assign">
   >true>
  >
   name="hintstyle" mode="assign">
   >hintfull>
  >
    name="hinting" mode="assign">
    >true>
   >
  >
>

The forts are anti-aliased, as expected, and look fine in FF, Gnome and Qt-based applications.

____________________
¹ http://swiss.ubuntuforums.org/showthread.php?t=1316216

Grand opening

Emil Vladev — Sat, 23 May 2009 15:33:48 +0000

Hello,

I finally managed to start a blog. I actually had an old one, hosted on blogger, but never really liked the experience there. In the beginning of 2009 I started to write my own blogging software in Django to learn the framework and almost finished it. Django simply rocks. But I don’t and never deployed it.
So, 5 months later I gave WordPress a shot and here it is – brand new and shiny.

In this blog I will be writing about programming, marketing and maybe other interesting themes.

So, hope anyone actually read it – but as Jeff Atwood said – no one will read it for at least six months, so I’m (sort of) prepared.