def get_features_in_country_subdivision(request, country_subdivision_code):
country_subdivision_code = country_subdivision_code.upper()
split_values=country_subdivision_code.split("-")
if len(split_values)==1:
""" Return geographic feature matching country & subdivision_code. """
return get_document_by(request, search_in=('url',),
country_code=split_values[0])
return get_document_by(request, search_in=('url',),
country_code=split_values[0], subdivision_code=split_values[1])
def get_json_feature_by_id_and_epoch(request, feature_id,
epoch, collection_name=None):
#import ipdb; ipdb.set_trace()
if epoch=="all":
return get_document_by(request, id=feature_id,
search_in=('url',),
collection_name=[settings.MONGO_DB_NAME,
settings.MONGO_HISTORYDB_NAME])
else:
""" Return geographic feature matching feature_id and epoch. """
return get_document_by(request, id=feature_id, epoch=epoch,
search_in=('url',), collection_name=collection_name)
def get_features_near_point(request, lat, lon, max_distance=None, limit=None):
"""
Return a geographic features located neat these coordinates.
"""
ll = {'$near':[float(lat), float(lon)]}
if max_distance:
md={'$maxDistance': max_distance}
q=SON(ll)
q.update(md)
return get_document_by(request, limit=limit, search_in=('url', 'get'),
geometry_coordinates=q,
)
else:
return get_document_by(request, limit=limit, search_in=('url', 'get'),
geometry_coordinates=ll,
)
def get_features_in_boundingbox(request, botleft_lon, botleft_lat,
topright_lon, topright_lat):
"""
Return a geographic features located withing the bouding box and
matching GET parameters if any.
"""
botleft = [float(botleft_lon), float(botleft_lat)]
topright = [float(topright_lon), float(topright_lat)]
searchbox = {'$box': [botleft, topright]}
return get_document_by(request, search_in=('url', 'get'),
geometry_coordinates={'$within': searchbox})
def get_qr_feature_by_id(request, feature_id, collection_name=None):
"""
Return QR code image matching the geographic feature matching
feature_id.
"""
json_response = get_document_by(request, id=feature_id, search_in=('url',),
collection_name=collection_name)
jr=json.loads(json_response.content)
if jr['status'] != 200:
return json_response
response = HttpResponse(mimetype="image/png")
image = qrencode.encode_scaled(json_response.content, 400)
image[2].save(response, "PNG")
return response
def edit_feature(request, feature_id, collection_name=None):
"""
Edit specific Fields in a geographic feature and save changes in Mongo DB.
If the feature doesn't exits, return a 404 error.
"""
if request.method == 'POST':
return edit_document(request, feature_id, FeatureUpdateUploadForm)
r = get_document_by(request, id=feature_id, search_in=('get',),
collection_name=collection_name)
r=raw_query_mongo_db({'id': feature_id}, collection_name=collection_name)
r['results'][0].update({'feature_id':r['results'][0]['id']})
return render_to_response('upload/feature.html',
{'form': FeatureEditUploadForm(r['results'][0])},
context_instance = RequestContext(request))
def get_features_at_point(request, lon, lat):
"""
Return a geographic features located at these exact coordinates.
"""
return get_document_by(request,
geometry_coordinates=[float(lon), float(lat)])
def get_features_search_dict(request, limit=50, skip=0, simplify=0):
"""
Return a geographic features matching GET parameters.
"""
return get_document_by(request, limit, skip, simplify, search_in=('get',))
def get_json_feature_by_id(request, feature_id, collection_name=None):
""" Return geographic feature matching feature_id. """
return get_document_by(request, id=feature_id, search_in=('url',),
collection_name=collection_name)
