1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
|
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)
|
