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All snippets written in Python

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S3 static media uploader

This is a bastardisation of a few of the Amazon s3 file uploader scripts that are around on the web. It's using Boto, but it's pretty easy to use the Amazon supplied S3 library they have for download at [their site](http://developer.amazonwebservices.com/connect/entry.jspa?externalID=134). It's mostly based on [this](http://www.holovaty.com/blog/archive/2006/04/07/0927) and [this](http://www.davidcramer.net/code/112/writing-a-build-bot.html). It's fairly limited in what it does (i didn't bother os.walking the directory structure), but I use it to quickly upload updated css or javascript. I'm sure it's a mess code wise, but it does the job. This will first YUI compress the files, and then gzip them before uploading to s3. Hopefully someone might find this useful. It will also retain the path structure of the files in your MEDIA_ROOT directory. To use it, set up your Amazon details, download the [YUI Compressor](http://developer.yahoo.com/yui/compressor/), and then enter the folder you wish to upload to s3, and basically run the script - python /path/to/s3_uploader.py

  • s3
  • amazon
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Pygments Syntax highlighting template tag

This template tag will attempt to apply pygments syntax highlighting to anything inside {% code %} and {% endcode %} tags. You can optionally pass in the language to highlight in the form of {% code 'lang' %} - if you don't, it will first try to guess the syntax, and then fall back to Python syntax highlighting.

  • templatetag
  • pygments
  • highlighting
  • syntax
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Cheap direct_to_tempalte patterns

Django cheap-pages Methods to use when you just want to use the Django dispatcher and there will be no extra business logic in your pages. In some cases flatpages is too flat, and store templates in DB is too much hassle >>> url(^name/$, ... direct_to_template, ... {'template': 'name.html'}, ... name='name') can be expressed as: >>> page('name') urlpatterns = patterns('', ...) urlpatterns += build('Regexp', ['page1', 'page2', ...])

  • generic
  • urlpatterns
  • direct_to_template
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Convert numbers in USA notation to brazilian notation

**This is the converter, just put it as a filter and call it with a float number.** * So, if you have a template variable **{{ my_number }}** that is "3096.44". * It will convert to "3.096,44" using the filter **{{ my_number|numBR }}**.

  • convert
  • float
  • usa
  • br
  • brazil
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Add URL Segments to Templates

Add this code to you your context_processors.py in your project and then install it in your settings.py TEMPLATE_CONTEXT_PROCESSORS. In your template you can print out a segment of a url by using {{ segment_1 }}. For example if you're on the page "/mysite/section1/section2/" and you used {{ segment_2 }} it would print section1. This idea was taken from Expression Engines URL Segments, http://expressionengine.com/docs/templates/globals/url_segments.html. This comes in handy if you only want to do something in your template if the page your on has a particular segment. FYI, I haven't used this in a production setting yet so it could be buggy still.

  • template
  • url
  • path
  • segment
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A Django image thumbnail filter

I've gotten this code originally from Dan Fairs. I've edited it a bit to make it do what I wanted it to do. I've sent a mail and the original can be considered public domain code. The same is true for this

  • image
  • resize
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Remove quotes from bits in a custom tag

A simple function that will remove the quote marks from every string in a list - if and only if the quote marks are the first and last character of the string, regardless of whether they are single or double quotes. Useful when parsing the arguments of a custom tag.

  • quotes
  • parse
  • custom-tags
  • tokens
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Timestamps in Model

A simple way to add `date_created` and `date_modified` timestamps to a model. Adds a `date_created` timestamp when the object is first created and adds a `date_modified` timestamp whenever the item is saved. **Note:** You might be tempted instead to use: `date_created=models.DateTimeField(default=datetime.now())` but that won't work as Python will calculate `datetime.now()` only once when it interprets your model. This means that every object created will get the same `date_created` timestamp until you restart your server.

  • python
  • save
  • timestamp
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easy admin registration

This essentially wraps [snippet 917](http://www.djangosnippets.org/snippets/917/) (with full credit to author ncw) in a convenience function so that you can type: admin_register(admin, namespace=globals()) or more concisely: admin_register(admin, globals()) at the end of your admin.py file without having to register each model and admin class individually.

  • admin
  • register
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SQL Function Decorator

This decorator will replace a method on a model with a class method that executes SQL in the functions doc string.

  • sql
  • model
  • decorator
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Autogenerate admin classes in admin.py

Tired of adding admin classes to admin.py whenever you add a model? This admin.py automatically keeps itself up-to-date with your models.py file. It assumes if you have a model: MyModel, you want an admin class called AdminMyModel. Regards, Luke Miller

  • django
  • models
  • admin
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phpbb (2.x) authentication backend

This class not only checks an old-style phpbb 2.x password, when the user successfully logs in, it rehashes the (correct) password in the newstyle hash and saves it. Eradicating the old, quite unsafe stored md5 password.

  • authentication
  • backend
  • phpbb
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Parsed RSS into template var

loads a parsed RSS feed (with feedparser) into a variable of choice. Caching by the "cache" template tag.

  • template
  • tag
  • templatetag
  • cache
  • rss
  • parse
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Read more link

I couldn't find any code for a blog-style "Read more after the jump," so I made a custom filter. It will look for **<!--more-->** for the jump, like in Wordpress. In **settings.py** set **READ_MORE_TEXT** to what you want the text of the link to be. `READ_MORE_TEXT = 'Read more after the jump.'` When you call the filter in your template, pass it the absolute link of that entry. Of course, you have to have your **get_absolute_url** function defined in your model, but you should have that already, right? :P In this example **entry.body** is the content of the blog entry. `{% load blog_filters %}` `{{ entry.body|read_more:entry.get_absolute_url }}` If anyone has a better way to do this, it is, of course, welcome.

  • template
  • filter
  • blog
  • find
  • jump
  • read
  • more
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