def copy_design(request, uid):
try:
design_obj = get_feature_by_uid(uid)
except Feature.DoesNotExist:
raise Http404
#check permissions
viewable, response = design_obj.is_viewable(request.user)
if not viewable:
return response
design_obj.pk = None
design_obj.user = request.user
design_obj.save()
json = []
json.append({
'id': design_obj.id,
'uid': design_obj.uid,
'name': design_obj.name,
'description': design_obj.description,
'attributes': design_obj.serialize_attributes
})
return HttpResponse(dumps(json), status=200)
def overlap_geotiff(collection_uids, user=None):
collections = [get_feature_by_uid(x) for x in collection_uids.split(',')]
collections = [
x for x in collections if x.__class__ in get_collection_models()
]
if len(collections) < 1:
raise Http404
filenames = []
for collection in collections:
viewable, response = collection.is_viewable(user)
if user and not viewable:
return response
fs = collection.feature_set(recurse=True)
poly_fs = [x for x in fs if isinstance(x, PolygonFeature)]
unique_types = list(set([x.__class__ for x in poly_fs]))
for model in unique_types:
responder = ShpResponder(
model.objects.filter(
pk__in=[x.pk for x in poly_fs if x.__class__ == model]))
responder.geo_field = 'geometry_final'
fn = responder('return_file_not_response')
filenames.append(fn)
temp_geotiff = create_heatmap(filenames)
return temp_geotiff
def copy_design(request, uid):
try:
design_obj = get_feature_by_uid(uid)
except Feature.DoesNotExist:
raise Http404
#check permissions
viewable, response = design_obj.is_viewable(request.user)
if not viewable:
return response
design_obj.pk = None
design_obj.user = request.user
design_obj.save()
json = []
json.append({
'id': design_obj.id,
'uid': design_obj.uid,
'name': design_obj.name,
'description': design_obj.description,
'attributes': design_obj.serialize_attributes
})
return HttpResponse(dumps(json), status=200)
def get_object_for_editing(request, uid, target_klass=None):
"""
Return the specified instance by uid for editing.
If a target_klass is provided, uid will be checked for consistency.
If the request has no logged-in user, a 401 Response will be returned. If
the item is not found, a 404 Response will be returned. If the user is
not authorized to edit the item (not the owner or a staff user), a 403 Not
Authorized Response will be returned.
usage:
instance = get_object_for_editing(request, 'mlpa_mpa_12', target_klass=Mpa)
if isinstance(instance, HttpResponse):
return instance
"""
if target_klass and not target_klass.model_uid() in uid:
return HttpResponse(
"Target class %s doesn't match the provided uid %s" %
(target_klass, uid),
status=401)
try:
instance = get_feature_by_uid(uid)
except ValueError:
return HttpResponse("Uid not valid: %s" % uid, status=401)
except:
return HttpResponse("Feature not found - %s" % uid, status=404)
if not request.user.is_authenticated():
return HttpResponse('You must be logged in.', status=401)
# Check that user owns the object or is staff
if not request.user.is_staff and request.user != instance.user:
return HttpResponseForbidden(
'You do not have permission to modify this object.')
return instance
def get_object_for_editing(request, uid, target_klass=None):
"""
Return the specified instance by uid for editing.
If a target_klass is provided, uid will be checked for consistency.
If the request has no logged-in user, a 401 Response will be returned. If
the item is not found, a 404 Response will be returned. If the user is
not authorized to edit the item (not the owner or a staff user), a 403 Not
Authorized Response will be returned.
usage:
instance = get_object_for_editing(request, 'mlpa_mpa_12', target_klass=Mpa)
if isinstance(instance, HttpResponse):
return instance
"""
if target_klass and not target_klass.model_uid() in uid:
return HttpResponse("Target class %s doesn't match the provided uid %s" %
(target_klass, uid),
status=401)
try:
instance = get_feature_by_uid(uid)
except ValueError:
return HttpResponse("Uid not valid: %s" % uid, status=401)
except:
return HttpResponse("Feature not found - %s" % uid, status=404)
if not request.user.is_authenticated():
return HttpResponse('You must be logged in.', status=401)
# Check that user owns the object or is staff
if not request.user.is_staff and request.user != instance.user:
return HttpResponseForbidden(
'You do not have permission to modify this object.')
return instance
def get_data_for_feature(user, uid):
try:
f = get_feature_by_uid(uid)
except:
return False, HttpResponse("Feature %s does not exist" % uid,
status=404)
viewable, response = f.is_viewable(user)
if not viewable:
return viewable, response
features = []
collections = []
if isinstance(f, FeatureCollection):
obj_id = f.pk
ct = ContentType.objects.get_for_model(f.__class__)
for fmodel in get_feature_models():
unattached = list(
fmodel.objects.filter(content_type=ct, object_id=obj_id))
features.extend(unattached)
for cmodel in get_collection_models():
collections_top = list(
cmodel.objects.filter(content_type=ct, object_id=obj_id))
collections.extend(collections_top)
elif isinstance(f, Feature):
features.append(f)
return features, collections
def get_object_for_viewing(request, uid, target_klass=None):
"""
Return the specified instance by uid for viewing.
If a target_klass is provided, uid will be checked for consistency.
If the request has no authenticated user, a 401 Response will be returned.
If the item is not found, a 404 Response will be returned. If the user is
not authorized to view the item (not the owner or part of a group the item
is shared with), a 403 Not Authorized Response will be returned.
usage:
instance = get_object_for_viewing(request, 'mlpa_mpa_12', target_klass=Mpa)
if isinstance(instance, HttpResponse):
return instance
"""
if target_klass and not target_klass.model_uid() in uid:
return HttpResponse("Target class %s doesn't match the provided uid %s" %
(target_klass, uid),
status=401)
try:
instance = get_feature_by_uid(uid)
except ValueError:
return HttpResponse("Uid not valid: %s" % uid, status=401)
except:
return HttpResponse("Feature not found - %s" % uid, status=404)
viewable, response = instance.is_viewable(request.user)
if viewable:
return instance
else:
return response
def get_data_for_feature(user, uid):
try:
f = get_feature_by_uid(uid)
except:
return False, HttpResponse("Feature %s does not exist" % uid, status=404)
viewable, response = f.is_viewable(user)
if not viewable:
return viewable, response
features = []
collections = []
if isinstance(f, FeatureCollection):
obj_id = f.pk
ct = ContentType.objects.get_for_model(f.__class__)
for fmodel in get_feature_models():
unattached = list(fmodel.objects.filter(content_type=ct,object_id=obj_id))
features.extend(unattached)
for cmodel in get_collection_models():
collections_top = list(cmodel.objects.filter(content_type=ct,object_id=obj_id))
collections.extend(collections_top)
elif isinstance(f, Feature):
features.append(f)
return features, collections
def get_object_for_viewing(request, uid, target_klass=None):
"""
Return the specified instance by uid for viewing.
If a target_klass is provided, uid will be checked for consistency.
If the request has no authenticated user, a 401 Response will be returned.
If the item is not found, a 404 Response will be returned. If the user is
not authorized to view the item (not the owner or part of a group the item
is shared with), a 403 Not Authorized Response will be returned.
usage:
instance = get_object_for_viewing(request, 'mlpa_mpa_12', target_klass=Mpa)
if isinstance(instance, HttpResponse):
return instance
"""
if target_klass and not target_klass.model_uid() in uid:
return HttpResponse(
"Target class %s doesn't match the provided uid %s" %
(target_klass, uid),
status=401)
try:
instance = get_feature_by_uid(uid)
except ValueError:
return HttpResponse("Uid not valid: %s" % uid, status=401)
except:
return HttpResponse("Feature not found - %s" % uid, status=404)
viewable, response = instance.is_viewable(request.user)
if viewable:
return instance
else:
return response
def bioconnect(request, uid):
try:
feature = get_feature_by_uid(uid)
except:
raise Http404("UID %s does not exist" % uid)
fgeom = feature.output_geom
if not fgeom.valid:
fgeom = fgeom.buffer(0)
hits = []
for mb in MyBioregion.objects.filter(output_geom__bboverlaps=fgeom):
mbgeom = mb.output_geom
if not mbgeom.valid:
mbgeom = mbgeom.buffer(0)
if mbgeom.intersects(fgeom):
hits.append(mb)
for d in DrawnBioregion.objects.filter(geometry_final__bboverlaps=fgeom):
dgeom = d.output_geom
if not dgeom.valid:
dgeom = dgeom.buffer(0)
if dgeom.intersects(fgeom):
hits.append(d)
context = {"hits": hits}
return render_to_response("bioconnect.html", RequestContext(request, context))
def bioconnect(request, uid):
try:
feature = get_feature_by_uid(uid)
except:
raise Http404('UID %s does not exist' % uid)
fgeom = feature.output_geom
if not fgeom.valid:
fgeom = fgeom.buffer(0)
hits = []
for mb in MyBioregion.objects.filter(output_geom__bboverlaps=fgeom):
mbgeom = mb.output_geom
if not mbgeom.valid:
mbgeom = mbgeom.buffer(0)
if mbgeom.intersects(fgeom):
hits.append(mb)
for d in DrawnBioregion.objects.filter(geometry_final__bboverlaps=fgeom):
dgeom = d.output_geom
if not dgeom.valid:
dgeom = dgeom.buffer(0)
if dgeom.intersects(fgeom):
hits.append(d)
context = {
'hits': hits,
}
return render_to_response('bioconnect.html',
RequestContext(request, context))
def get_bioregion(uid):
'''
Gets the bioregions instance for a given uid
'''
try:
return get_feature_by_uid(uid)
except:
raise Http404('UID %s does not exist' % uid)
def get_bioregion(uid):
'''
Gets the bioregions instance for a given uid
'''
try:
return get_feature_by_uid(uid)
except:
raise Http404('UID %s does not exist' % uid)
def get_features(uids, user):
"""
Returns list of tuples representing mapnik layers
Tuple => (model_class, [pks])
Note: currently just a single pk per 'layer' which is
incredibly inefficient but the only way to ensure
proper layer ordering (??).
features = [ (Mpa, [49, 50]),
(Pipeline, [32, 31]),
(Shipwreck, [32, 31])
]
"""
feature_models = get_feature_models()
collection_models = get_collection_models()
features = [] # list of tuples => (model, [pks])
for uid in uids:
log.debug("processing uid %s" % uid)
applabel, modelname, pk = uid.split('_')
model = get_model_by_uid("%s_%s" % (applabel, modelname))
feature = get_feature_by_uid(uid)
if user:
viewable, response = feature.is_viewable(user)
if not viewable:
continue
if model in collection_models:
collection = get_feature_by_uid(uid)
if user:
viewable, response = collection.is_viewable(user)
if not viewable:
continue
all_children = collection.feature_set(recurse=True)
children = [
x for x in all_children if x.__class__ in feature_models
]
for child in children:
features.append((child.__class__, [child.pk]))
else:
features.append((model, [int(pk)]))
return features
def get_attributes(request, uid):
try:
scenario_obj = get_feature_by_uid(uid)
except Scenario.DoesNotExist:
raise Http404
#check permissions
viewable, response = scenario_obj.is_viewable(request.user)
if not viewable:
return response
return HttpResponse(dumps(scenario_obj.serialize_attributes))
def get_attributes(request, uid):
try:
scenario_obj = get_feature_by_uid(uid)
except Scenario.DoesNotExist:
raise Http404
#check permissions
viewable, response = scenario_obj.is_viewable(request.user)
if not viewable:
return response
return HttpResponse(dumps(scenario_obj.serialize_attributes))
def get_features(uids,user):
"""
Returns list of tuples representing mapnik layers
Tuple => (model_class, [pks])
Note: currently just a single pk per 'layer' which is
incredibly inefficient but the only way to ensure
proper layer ordering (??).
features = [ (Mpa, [49, 50]),
(Pipeline, [32, 31]),
(Shipwreck, [32, 31])
]
"""
feature_models = get_feature_models()
collection_models = get_collection_models()
features = [] # list of tuples => (model, [pks])
for uid in uids:
log.debug("processing uid %s" % uid)
applabel, modelname, pk = uid.split('_')
model = get_model_by_uid("%s_%s" % (applabel,modelname))
feature = get_feature_by_uid(uid)
if user:
viewable, response = feature.is_viewable(user)
if not viewable:
continue
if model in collection_models:
collection = get_feature_by_uid(uid)
if user:
viewable, response = collection.is_viewable(user)
if not viewable:
continue
all_children = collection.feature_set(recurse=True)
children = [x for x in all_children if x.__class__ in feature_models]
for child in children:
features.append((child.__class__,[child.pk]))
else:
features.append((model,[int(pk)]))
return features
def remove_bookmark(request):
try:
bookmark_uid = request.POST['uid']
bookmark = get_feature_by_uid(bookmark_uid)
viewable, response = bookmark.is_viewable(request.user)
if not viewable:
return response
bookmark.delete()
return HttpResponse(status=200)
except:
return HttpResponse(status=304)
def delete_drawing(request, uid):
try:
drawing_obj = get_feature_by_uid(uid)
except Feature.DoesNotExist:
raise Http404
#check permissions
viewable, response = drawing_obj.is_viewable(request.user)
if not viewable:
return response
drawing_obj.delete()
return HttpResponse("", status=200)
def delete_drawing(request, uid):
try:
drawing_obj = get_feature_by_uid(uid)
except Feature.DoesNotExist:
raise Http404
#check permissions
viewable, response = drawing_obj.is_viewable(request.user)
if not viewable:
return response
drawing_obj.delete()
return HttpResponse("", status=200)
def share_design(request):
from django.contrib.auth.models import Group
group_names = request.POST.getlist('groups[]')
design_uid = request.POST['scenario']
design = get_feature_by_uid(design_uid)
viewable, response = design.is_viewable(request.user)
if not viewable:
return response
#remove previously shared with groups, before sharing with new list
design.share_with(None)
groups = []
for group_name in group_names:
groups.append(Group.objects.get(name=group_name))
design.share_with(groups, append=False)
return HttpResponse("", status=200)
def delete_scenario(request, uid):
try:
scenario_obj = get_feature_by_uid(uid)
except Scenario.DoesNotExist:
raise Http404
#check permissions
viewable, response = scenario_obj.is_viewable(request.user)
if not viewable:
return response
scenario_obj.active = False
scenario_obj.save(rerun=False)
return HttpResponse("", status=200)
def share_design(request):
from django.contrib.auth.models import Group
group_names = request.POST.getlist('groups[]')
design_uid = request.POST['scenario']
design = get_feature_by_uid(design_uid)
viewable, response = design.is_viewable(request.user)
if not viewable:
return response
#remove previously shared with groups, before sharing with new list
design.share_with(None)
groups = []
for group_name in group_names:
groups.append(Group.objects.get(name=group_name))
design.share_with(groups, append=False)
return HttpResponse("", status=200)
def delete_design(request, uid):
try:
design_obj = get_feature_by_uid(uid)
except Feature.DoesNotExist:
raise Http404
#check permissions
viewable, response = design_obj.is_viewable(request.user)
if not viewable:
return response
design_obj.delete()
#design_obj.active = False
#design_obj.save(rerun=False)
return HttpResponse("", status=200)
def delete_design(request, uid):
try:
design_obj = get_feature_by_uid(uid)
except Feature.DoesNotExist:
raise Http404
#check permissions
viewable, response = design_obj.is_viewable(request.user)
if not viewable:
return response
design_obj.delete()
#design_obj.active = False
#design_obj.save(rerun=False)
return HttpResponse("", status=200)
def copy_design(request, uid):
try:
design_obj = get_feature_by_uid(uid)
except Feature.DoesNotExist:
raise Http404
#check permissions
viewable, response = design_obj.is_viewable(request.user)
if not viewable:
return response
design_obj.pk = None
design_obj.user = request.user
design_obj.save()
return HttpResponse("", status=200)
def storyconnect(request, uid):
try:
feature = get_feature_by_uid(uid)
except:
raise Http404("UID %s does not exist" % uid)
fgeom = feature.output_geom
if not fgeom.valid:
fgeom = fgeom.buffer(0)
hits = []
for s in StoryPoint.objects.filter(geometry_final__bboverlaps=fgeom):
sgeom = s.geometry_final
if sgeom.intersects(fgeom):
hits.append(s)
context = {"hits": hits}
return render_to_response("storyconnect.html", RequestContext(request, context))
def share_bookmark(request):
group_names = request.POST.getlist('groups[]')
bookmark_uid = request.POST['bookmark']
bookmark = get_feature_by_uid(bookmark_uid)
viewable, response = bookmark.is_viewable(request.user)
if not viewable:
return response
#remove previously shared with groups, before sharing with new list
bookmark.share_with(None)
groups = []
for group_name in group_names:
groups.append(Group.objects.get(name=group_name))
bookmark.share_with(groups, append=False)
return HttpResponse("", status=200)
def storyconnect(request, uid):
try:
feature = get_feature_by_uid(uid)
except:
raise Http404('UID %s does not exist' % uid)
fgeom = feature.output_geom
if not fgeom.valid:
fgeom = fgeom.buffer(0)
hits = []
for s in StoryPoint.objects.filter(geometry_final__bboverlaps=fgeom):
sgeom = s.geometry_final
if sgeom.intersects(fgeom):
hits.append(s)
context = {
'hits': hits,
}
return render_to_response('storyconnect.html',
RequestContext(request, context))
def overlap_geotiff(collection_uids, user=None):
collections = [get_feature_by_uid(x) for x in collection_uids.split(',')]
collections = [x for x in collections if x.__class__ in get_collection_models()]
if len(collections) < 1:
raise Http404
filenames = []
for collection in collections:
viewable, response = collection.is_viewable(user)
if user and not viewable:
return response
fs = collection.feature_set(recurse=True)
poly_fs = [x for x in fs if isinstance(x,PolygonFeature)]
unique_types = list(set([x.__class__ for x in poly_fs]))
for model in unique_types:
responder = ShpResponder(model.objects.filter(pk__in=[x.pk for x in poly_fs if x.__class__ == model]))
responder.geo_field = 'geometry_final'
fn = responder('return_file_not_response')
filenames.append(fn)
temp_geotiff = create_heatmap(filenames)
return temp_geotiff