Use key().name() instead of link_id
This is now possible because key_name is constructed purely from the
key fields of an entity. It is not sufficient to use just link_id,
that works only for single-scoped entities (e.g., those that either
do not have a scope, or that have a scope which itself does not have
a scope). It would break if there was an entity that has a scoped
scope (it would only include the scope's link_id in the url, which
made it impossible to look up the scope as we missed the link_id of
the scope's scope).
Patch by: Sverre Rabbelier
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')