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+from __future__ import unicode_literals
+
+from django.http import HttpResponse, Http404
+from django.template import loader
+from django.contrib.sites.models import get_current_site
+from django.core import urlresolvers
+from django.core.paginator import EmptyPage, PageNotAnInteger
+from django.contrib.gis.db.models.fields import GeometryField
+from django.db import connections, DEFAULT_DB_ALIAS
+from django.db.models import get_model
+from django.utils import six
+from django.utils.translation import ugettext as _
+
+from django.contrib.gis.shortcuts import render_to_kml, render_to_kmz
+
+def index(request, sitemaps):
+ """
+ This view generates a sitemap index that uses the proper view
+ for resolving geographic section sitemap URLs.
+ """
+ current_site = get_current_site(request)
+ sites = []
+ protocol = 'https' if request.is_secure() else 'http'
+ for section, site in sitemaps.items():
+ if callable(site):
+ pages = site().paginator.num_pages
+ else:
+ pages = site.paginator.num_pages
+ sitemap_url = urlresolvers.reverse('django.contrib.gis.sitemaps.views.sitemap', kwargs={'section': section})
+ sites.append('%s://%s%s' % (protocol, current_site.domain, sitemap_url))
+
+ if pages > 1:
+ for page in range(2, pages+1):
+ sites.append('%s://%s%s?p=%s' % (protocol, current_site.domain, sitemap_url, page))
+ xml = loader.render_to_string('sitemap_index.xml', {'sitemaps': sites})
+ return HttpResponse(xml, content_type='application/xml')
+
+def sitemap(request, sitemaps, section=None):
+ """
+ This view generates a sitemap with additional geographic
+ elements defined by Google.
+ """
+ maps, urls = [], []
+ if section is not None:
+ if section not in sitemaps:
+ raise Http404(_("No sitemap available for section: %r") % section)
+ maps.append(sitemaps[section])
+ else:
+ maps = list(six.itervalues(sitemaps))
+
+ page = request.GET.get("p", 1)
+ current_site = get_current_site(request)
+ for site in maps:
+ try:
+ if callable(site):
+ urls.extend(site().get_urls(page=page, site=current_site))
+ else:
+ urls.extend(site.get_urls(page=page, site=current_site))
+ except EmptyPage:
+ raise Http404(_("Page %s empty") % page)
+ except PageNotAnInteger:
+ raise Http404(_("No page '%s'") % page)
+ xml = loader.render_to_string('gis/sitemaps/geo_sitemap.xml', {'urlset': urls})
+ return HttpResponse(xml, content_type='application/xml')
+
+def kml(request, label, model, field_name=None, compress=False, using=DEFAULT_DB_ALIAS):
+ """
+ This view generates KML for the given app label, model, and field name.
+
+ The model's default manager must be GeoManager, and the field name
+ must be that of a geographic field.
+ """
+ placemarks = []
+ klass = get_model(label, model)
+ if not klass:
+ raise Http404('You must supply a valid app label and module name. Got "%s.%s"' % (label, model))
+
+ if field_name:
+ try:
+ info = klass._meta.get_field_by_name(field_name)
+ if not isinstance(info[0], GeometryField):
+ raise Exception
+ except:
+ raise Http404('Invalid geometry field.')
+
+ connection = connections[using]
+
+ if connection.ops.postgis:
+ # PostGIS will take care of transformation.
+ placemarks = klass._default_manager.using(using).kml(field_name=field_name)
+ else:
+ # There's no KML method on Oracle or MySQL, so we use the `kml`
+ # attribute of the lazy geometry instead.
+ placemarks = []
+ if connection.ops.oracle:
+ qs = klass._default_manager.using(using).transform(4326, field_name=field_name)
+ else:
+ qs = klass._default_manager.using(using).all()
+ for mod in qs:
+ mod.kml = getattr(mod, field_name).kml
+ placemarks.append(mod)
+
+ # Getting the render function and rendering to the correct.
+ if compress:
+ render = render_to_kmz
+ else:
+ render = render_to_kml
+ return render('gis/kml/placemarks.kml', {'places' : placemarks})
+
+def kmz(request, label, model, field_name=None, using=DEFAULT_DB_ALIAS):
+ """
+ This view returns KMZ for the given app label, model, and field name.
+ """
+ return kml(request, label, model, field_name, compress=True, using=using)