def _create_layer_legend_link(self, geonode_layer):
"""Get the layer's legend and save it locally
Regardless of the service being INDEXED or CASCADED we're always
creating the legend by making a request directly to the original
service.
"""
cleaned_url, service, version, request = WmsServiceHandler.get_cleaned_url_params(self.url)
_p_url = urlparse(self.url)
legend_url = get_legend_url(
geonode_layer, "",
service_url=f"{_p_url.scheme}://{_p_url.netloc}{_p_url.path}",
layer_name=geonode_layer.name,
version=version,
params=_p_url.query
)
logger.debug(f"legend_url: {legend_url}")
try:
Link.objects.get_or_create(
resource=geonode_layer.resourcebase_ptr,
url=legend_url,
name='Legend',
defaults={
"extension": 'png',
"name": 'Legend',
"url": legend_url,
"mime": 'image/png',
"link_type": 'image',
}
)
except ResourceBase.DoesNotExist as e:
logger.exception(e)
return legend_url
def _create_layer_legend_link(self, geonode_service, geonode_layer):
"""Get the layer's legend and save it locally
Regardless of the service being INDEXED or CASCADED we're always
creating the legend by making a request directly to the original
service.
"""
legend_url = get_legend_url(geonode_layer,
"",
service_url=geonode_service.base_url,
layer_name=geonode_layer.name,
version=geonode_service.version,
params=geonode_service.extra_queryparams)
logger.debug(f"legend_url: {legend_url}")
try:
Link.objects.get_or_create(resource=geonode_layer.resourcebase_ptr,
url=legend_url,
name='Legend',
defaults={
"extension": 'png',
"name": 'Legend',
"url": legend_url,
"mime": 'image/png',
"link_type": 'image',
})
except ResourceBase.DoesNotExist as e:
logger.exception(e)
return legend_url
def remove_duplicate_links(resource):
"""
Makes a scan of Links related to the resource and removes the duplicates.
It also regenerates the Legend link in case this is missing for some reason.
"""
for _n in _names:
_links = Link.objects.filter(resource__id=resource.id, name=_n)
_cnt = _links.count()
while _cnt > 1:
_links.last().delete()
_cnt -= 1
if isinstance(resource, Dataset):
# fixup Legend links
layer = resource
if layer.default_style and not layer.get_legend_url(style_name=layer.default_style.name):
Link.objects.update_or_create(
resource=layer.resourcebase_ptr,
name='Legend',
extension='png',
url=get_legend_url(layer, layer.default_style.name),
mime='image/png',
link_type='image')