def generate_event_id(operation,feature_type,option=None):
array = [operation,feature_type]
if option!=None:
option = ensure_list(option)
for o in option:
array.append(str(o))
return "::".join(array)
def band(db,feature_type,data):
print "function: band"
if not data.has_key('group'):
return my_classifier.error_json("'group' must be set.")
group_name = data['group']
selector = data['selector']
collections = db[feature_type]
samples = collections.find(selector)
#print samples
if samples.count() == 0:
return my_classifier.error_json("ERROR: no samples are hit.")
for s in samples:
groups = s['group']
if not group_name in groups:
groups = ensure_list(groups)
groups.append(group_name)
_id = s['_id']
collections.update_one({"_id":_id},{"$set":{'group':groups}})
result = my_classifier.success_json()
result['event'] = {'_id':generate_event_id('band',feature_type,[group_name,json.dumps(selector)])}
return result
