philipn

Running Ubuntu on a Macbook Air

You don't have to be a slave to OS X! Here's a guide to a sane dual-booting setup with Ubuntu 12.10 on your shiny MacBook Air. This is written and tested for a MacBook Air 5,2 (Mid 2012), but likely works the same with any modern Macbook.

Install according to instructions at this URL:

philipn

"""
A replacement for the django-compressor `compress` management command that renders all
templates with each `LANGUAGE_CODE` available in your `settings.LANGUAGES`.

Useful for making static-i18n work with django-compressor, among other things.
"""

import os
from os.path import join
import json

philipn

"""
Likely not useful to anyone else, but just putting it out there.

This script will take a directory of GeoTIFFs and merge them together without issues.
This script simply decompresses the files, runs nearblack to remove pseudo-black borders caused by compression, and then uses gdalwarp to stitch the files together.

The script is designed to use the minimal amount of disk space possible -- it cleans up each file after decompression and continually merges with a master image.
"""

import os

philipn

"""
This likely isn't useful to anybody else.  But it's an example of how to
adapt python's ftplib to grab just the first few kb of a given file.

In this case, all we need is the first few kb to get the metadata from a
GeoTIFF file.
"""

import ftplib

philipn

class AllowFieldLimitingMixin(object):
    """
    A mixin for a generic APIView that will allow the serialized fields to be
    limited to a set of comma-separated values, specified via the `fields`
    query parameter.  This will only apply to GET requests.
    """
    _serializer_class_for_fields = {}

    def get_serializer_class_for_fields(self, serializer_class, fields):
        fields = fields.strip().split(',')

philipn

Keybase proof

I hereby claim:

• I am philipn on github.
• I am philipn (https://keybase.io/philipn) on keybase.
• I have a public key whose fingerprint is 996B 2D31 DBDC 8734 9019 3199 1319 9280 9EB7 3975

To claim this, I am signing this object:

philipn

If you've customized your CSS or otherwise altered your site/base.html template you'll want to do the following:

Back up your old base.html template:

sudo cp /usr/share/localwiki/templates/site/base.html ~/base.html.bak

Now just remove the base.html template:

sudo rm /usr/share/localwiki/templates/site/base.html

philipn

# This is an example .wsgi file for serving up localwiki inside of a
# custom virtualenv.
#
#############################################################
# CHANGE THIS LINE to the absolute path of the virtualenv:
#############################################################
VIRTUAL_ENV_PATH = '/home/philip/projects/py_envs/localwiki'

import os
import sys

philipn

the distance method takes a geom argument:

Map.objects.distance(geom).order_by('distance') -->

/api/map/?objects.distance=<geom>&order_by=distance

the area method takes no arguments:

Map.objects.area().order_by('area') -->

philipn

    def filter_value_to_python(self, value, field_name, filters=None,
            filter_expr=None, filter_type=None):
        """
        Turn the string ``value`` into a python object.
        """
        # Simple values
        if value in ['true', 'True', True]:
            return True
        elif value in ['false', 'False', False]: