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