Adds to Melange a tags framework based on taggable-mixin.
The taggable-mixin allowed only tag per Datastore model. This is extended
framework allows any arbitrary number of tags per Datastore model. Also,
now one can define different models for different Tag types which are all
inherited from the base Tag model provided by taggable-mixin.
The GHOPTask model makes use of 2 tags per model, one for difficulty and the
other for task_type, both using the tags framework.
Reviewed by: Paweł Sołyga
import cStringIO, zipfile
from django.http import HttpResponse
from django.template import loader
def compress_kml(kml):
"Returns compressed KMZ from the given KML string."
kmz = cStringIO.StringIO()
zf = zipfile.ZipFile(kmz, 'a', zipfile.ZIP_DEFLATED, False)
zf.writestr('doc.kml', kml)
zf.close()
kmz.seek(0)
return kmz.read()
def render_to_kml(*args, **kwargs):
"Renders the response as KML (using the correct MIME type)."
return HttpResponse(loader.render_to_string(*args, **kwargs),
mimetype='application/vnd.google-earth.kml+xml kml')
def render_to_kmz(*args, **kwargs):
"""
Compresses the KML content and returns as KMZ (using the correct
MIME type).
"""
return HttpResponse(compress_kml(loader.render_to_string(*args, **kwargs)),
mimetype='application/vnd.google-earth.kmz')
def render_to_text(*args, **kwargs):
"Renders the response using the MIME type for plain text."
return HttpResponse(loader.render_to_string(*args, **kwargs),
mimetype='text/plain')