app/django/contrib/gis/shortcuts.py
author Lennard de Rijk <ljvderijk@gmail.com>
Wed, 26 Aug 2009 18:31:19 +0200
changeset 2811 c8901482dc9c
parent 323 ff1a9aa48cfd
permissions -rw-r--r--
Added timeline_logic keyword argument to Program logic. This will allow us to track which Timeline logic belongs to which each Program.

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')