Snippets by danielsokolowski

Django template tag to hash/map a value to a unique web color.

Just a quick and dirty solution I needed to uniquely color code entries in a selection form list. It uses the hashlib to generate it's coloring.

• template
• django
• coloring

Wed 09 Nov 2011 Read More

Updated: GeoJSON Serializer for GeoDjango (gis)

Unfortunately the built in Django JSON serialzer encodes GeoDjango GeometyrField as WKT text. This snippet extends django's serializer and adds support for GEOJson format. Built in JSON serializer output: [{"pk": 1, ... "geopoint": "POINT (-76.5060419999999937 44.2337040000000030)" ... }] GeoJSON serializer ouput: [{"pk": 1, ... "geopoint": {"type": "Point", "coordinates": [-76.503296000000006, 44.230956999999997], "__GEOSGeometry__": [ "__init__", [ "SRID=4326;POINT (-75.5129950000000036 44.2442360000000008)" ] ] }] Note: the "__GEOSGeometry__" is a class hint as defined by JSON-RCP and used during deserilization.

• GeoJson
• Serializer
• Deserializer

Tue 15 Jan 2013 Read More

Generic view mixing that allows output to JSON, HTML, HTML SNIPPETS

Adding this mixing to your existing class based views allows for outputting of queries into any registered serialzier format -- very handy for dynamic JS based GUI on the JSON format. This generic view mixing was created on our last project which required a fancy JS based user experience and yet also needed to be accessible through non JS enabled browsers.

• JSON
• GEOJSON

Sat 01 Dec 2012 Read More

GeoJSON Serializer for GeoDjango (gis)

**Please use the updated version http://djangosnippets.org/snippets/2596/** Unfortunately the built in Django JSON serialzer encodes GeoDjango GeometyrField as simple text. This snippet extends django's serializer and adds support for GeoJson format. Built in JSON serializer output: [{"pk": 1, ... "geopoint": "POINT (-76.5060419999999937 44.2337040000000030)" ... }] GeoJSON serializer ouput: [{"pk": 1, ... "geopoint": {"type": "Point", "coordinates": [-76.503296000000006, 44.230956999999997]}}]

• GeoJson
• Serializer

Mon 23 Jul 2012 Read More

Improved Pickled Object Field (Fixed for Django 1.2)

Small changes to [Snippet 1694](http://djangosnippets.org/snippets/1694/) to that QueryAPI works for django 1.2 and higher. Changes: * Replaced `get_db_prep_value` with `get_prep_value`. * Replaced `get_db_prep_lookup` with modified `get_prep_lookup`.

• model
• db
• orm
• database
• pickle
• object
• field
• type
• pickled
• store

Wed 02 Feb 2011 Read More