def get_context_data(self, **kwargs):
request = self.request
if request and 'access_token' in request.session:
access_token = request.session['access_token']
else:
access_token = None
DEFAULT_MAP_CONFIG, DEFAULT_BASE_LAYERS = default_map_config(request)
layers = Layer.objects.all()
if request.method == 'GET' and 'copy' in request.GET:
"""Prepare context data."""
request = self.request
mapid = self.request.GET['copy']
map_obj = _resolve_map(request, mapid, 'base.view_resourcebase',
_PERMISSION_MSG_VIEW)
config = map_obj.viewer_json(request)
# list all required layers
map_layers = MapLayer.objects.filter(
map_id=mapid).order_by('stack_order')
context = {
'config':
json.dumps(config),
'create':
False,
'layers':
layers,
'map':
map_obj,
'map_layers':
map_layers,
'preview':
getattr(settings, 'GEONODE_CLIENT_LAYER_PREVIEW_LIBRARY',
'leaflet')
}
return context
else:
if request.method == 'GET':
params = request.GET
elif request.method == 'POST':
params = request.POST
else:
return self.render_to_response(status=405)
if 'layer' in params:
bbox = None
map_obj = Map(projection=getattr(settings, 'DEFAULT_MAP_CRS',
'EPSG:3857'))
for layer_name in params.getlist('layer'):
try:
layer = _resolve_layer(request, layer_name)
except ObjectDoesNotExist:
# bad layer, skip
continue
if not request.user.has_perm(
'view_resourcebase',
obj=layer.get_self_resource()):
# invisible layer, skip inclusion
continue
layer_bbox = layer.bbox
# assert False, str(layer_bbox)
if bbox is None:
bbox = list(layer_bbox[0:4])
else:
bbox[0] = min(bbox[0], layer_bbox[0])
bbox[1] = min(bbox[1], layer_bbox[1])
bbox[2] = max(bbox[2], layer_bbox[2])
bbox[3] = max(bbox[3], layer_bbox[3])
config = layer.attribute_config()
# Add required parameters for GXP lazy-loading
config["title"] = layer.title
config["queryable"] = True
config["srs"] = getattr(settings, 'DEFAULT_MAP_CRS',
'EPSG:3857')
config["bbox"] = bbox if config["srs"] != 'EPSG:3857' \
else llbbox_to_mercator(
[float(coord) for coord in bbox])
if layer.storeType == "remoteStore":
service = layer.remote_service
# Probably not a good idea to send the access token to every remote service.
# This should never match, so no access token should be sent to remote services.
ogc_server_url = urlsplit(
ogc_server_settings.PUBLIC_LOCATION).netloc
service_url = urlsplit(service.base_url).netloc
if access_token and ogc_server_url == service_url and \
'access_token' not in service.base_url:
url = '%s?access_token=%s' % (service.base_url,
access_token)
else:
url = service.base_url
map_layers = MapLayer(map=map_obj,
name=layer.typename,
ows_url=layer.ows_url,
layer_params=json.dumps(config),
visibility=True,
source_params=json.dumps({
"ptype":
service.ptype,
"remote":
True,
"url":
url,
"name":
service.name,
"title":
"[R] %s" % service.title
}))
else:
ogc_server_url = urlsplit(
ogc_server_settings.PUBLIC_LOCATION).netloc
layer_url = urlsplit(layer.ows_url).netloc
if access_token and ogc_server_url == layer_url and \
'access_token' not in layer.ows_url:
url = layer.ows_url + '?access_token=' + \
access_token
else:
url = layer.ows_url
map_layers = MapLayer(
map=map_obj,
name=layer.typename,
ows_url=url,
# use DjangoJSONEncoder to handle Decimal values
layer_params=json.dumps(config,
cls=DjangoJSONEncoder),
visibility=True)
if bbox and len(bbox) >= 4:
minx, miny, maxx, maxy = [float(coord) for coord in bbox]
x = (minx + maxx) / 2
y = (miny + maxy) / 2
if getattr(settings, 'DEFAULT_MAP_CRS',
'EPSG:3857') == "EPSG:4326":
center = list((x, y))
else:
center = list(forward_mercator((x, y)))
if center[1] == float('-inf'):
center[1] = 0
BBOX_DIFFERENCE_THRESHOLD = 1e-5
# Check if the bbox is invalid
valid_x = (maxx - minx)**2 > BBOX_DIFFERENCE_THRESHOLD
valid_y = (maxy - miny)**2 > BBOX_DIFFERENCE_THRESHOLD
if valid_x:
width_zoom = math.log(360 / abs(maxx - minx), 2)
else:
width_zoom = 15
if valid_y:
height_zoom = math.log(360 / abs(maxy - miny), 2)
else:
height_zoom = 15
map_obj.center_x = center[0]
map_obj.center_y = center[1]
map_obj.zoom = math.ceil(min(width_zoom, height_zoom))
map_obj.handle_moderated_uploads()
config = map_obj.viewer_json(request)
config['fromLayer'] = True
context = {
'config':
json.dumps(config),
'create':
True,
'layers':
layers,
'map':
map_obj,
'map_layers':
map_layers,
'preview':
getattr(settings, 'GEONODE_CLIENT_LAYER_PREVIEW_LIBRARY',
'leaflet')
}
else:
# list all required layers
layers = Layer.objects.all()
context = {'create': True, 'layers': layers}
return context
def get_context_data(self, **kwargs):
request = self.request
if request and 'access_token' in request.session:
access_token = request.session['access_token']
else:
access_token = None
snapshot = self.kwargs.get('snapshot')
DEFAULT_MAP_CONFIG, DEFAULT_BASE_LAYERS = default_map_config(request)
layers = Layer.objects.all()
if request.method == 'GET' and 'copy' in request.GET:
"""Prepare context data."""
request = self.request
mapid = self.request.GET['copy']
map_obj = _resolve_map(
request, mapid, 'base.view_resourcebase', _PERMISSION_MSG_VIEW)
if snapshot is None:
config = map_obj.viewer_json(request)
else:
config = snapshot_config(snapshot, map_obj, request)
# list all required layers
map_layers = MapLayer.objects.filter(
map_id=mapid).order_by('stack_order')
context = {
'config': json.dumps(config),
'create': False,
'layers': layers,
'map': map_obj,
'map_layers': map_layers,
'preview': getattr(
settings,
'GEONODE_CLIENT_LAYER_PREVIEW_LIBRARY',
'')
}
return context
else:
if request.method == 'GET':
params = request.GET
elif request.method == 'POST':
params = request.POST
else:
return self.render_to_response(status=405)
if 'layer' in params:
bbox = None
map_obj = Map(projection=getattr(
settings, 'DEFAULT_MAP_CRS', 'EPSG:3857'))
for layer_name in params.getlist('layer'):
try:
layer = _resolve_layer(request, layer_name)
except ObjectDoesNotExist:
# bad layer, skip
continue
if not request.user.has_perm(
'view_resourcebase',
obj=layer.get_self_resource()):
# invisible layer, skip inclusion
continue
layer_bbox = layer.bbox
# assert False, str(layer_bbox)
if bbox is None:
bbox = list(layer_bbox[0:4])
else:
bbox[0] = min(bbox[0], layer_bbox[0])
bbox[1] = min(bbox[1], layer_bbox[1])
bbox[2] = max(bbox[2], layer_bbox[2])
bbox[3] = max(bbox[3], layer_bbox[3])
config = layer.attribute_config()
# Add required parameters for GXP lazy-loading
config["title"] = layer.title
config["queryable"] = True
config["srs"] = getattr(settings,
'DEFAULT_MAP_CRS', 'EPSG:3857')
config["bbox"] = bbox if config["srs"] != 'EPSG:3857' \
else llbbox_to_mercator(
[float(coord) for coord in bbox])
if layer.storeType == "remoteStore":
service = layer.remote_service
# Probably not a good idea to send the access token to every remote service.
# This should never match, so no access token should be sent to remote services.
ogc_server_url = urlparse.urlsplit(
ogc_server_settings.PUBLIC_LOCATION).netloc
service_url = urlparse.urlsplit(
service.base_url).netloc
if access_token and ogc_server_url == service_url and \
'access_token' not in service.base_url:
url = '%s?access_token=%s' % (service.base_url, access_token)
else:
url = service.base_url
map_layers = MapLayer(map=map_obj,
name=layer.typename,
ows_url=layer.ows_url,
layer_params=json.dumps(config),
visibility=True,
source_params=json.dumps({
"ptype": service.ptype,
"remote": True,
"url": url,
"name": service.name,
"title": "[R] %s" % service.title}))
else:
ogc_server_url = urlparse.urlsplit(
ogc_server_settings.PUBLIC_LOCATION).netloc
layer_url = urlparse.urlsplit(layer.ows_url).netloc
if access_token and ogc_server_url == layer_url and \
'access_token' not in layer.ows_url:
url = layer.ows_url + '?access_token=' + \
access_token
else:
url = layer.ows_url
map_layers = MapLayer(
map=map_obj,
name=layer.typename,
ows_url=url,
# use DjangoJSONEncoder to handle Decimal values
layer_params=json.dumps(
config,
cls=DjangoJSONEncoder),
visibility=True
)
if bbox and len(bbox) >= 4:
minx, miny, maxx, maxy = [float(coord) for coord in bbox]
x = (minx + maxx) / 2
y = (miny + maxy) / 2
if getattr(settings,
'DEFAULT_MAP_CRS', 'EPSG:3857') == "EPSG:4326":
center = list((x, y))
else:
center = list(forward_mercator((x, y)))
if center[1] == float('-inf'):
center[1] = 0
BBOX_DIFFERENCE_THRESHOLD = 1e-5
# Check if the bbox is invalid
valid_x = (maxx - minx) ** 2 > BBOX_DIFFERENCE_THRESHOLD
valid_y = (maxy - miny) ** 2 > BBOX_DIFFERENCE_THRESHOLD
if valid_x:
width_zoom = math.log(360 / abs(maxx - minx), 2)
else:
width_zoom = 15
if valid_y:
height_zoom = math.log(360 / abs(maxy - miny), 2)
else:
height_zoom = 15
map_obj.center_x = center[0]
map_obj.center_y = center[1]
map_obj.zoom = math.ceil(min(width_zoom, height_zoom))
map_obj.handle_moderated_uploads()
if snapshot is None:
config = map_obj.viewer_json(request)
else:
config = snapshot_config(snapshot, map_obj, request)
config['fromLayer'] = True
context = {
'config': json.dumps(config),
'create': True,
'layers': layers,
'map': map_obj,
'map_layers': map_layers,
'preview': getattr(
settings,
'GEONODE_CLIENT_LAYER_PREVIEW_LIBRARY',
'')
}
else:
# list all required layers
layers = Layer.objects.all()
context = {
'create': True,
'layers': layers
}
return context
