Initial commit

server/database/model/model_labels.py

@@ -0,0 +1,11 @@
+from mongoengine import MapField, IntField
+
+
+class ModelLabels(MapField):
+    def __init__(self, *args, **kwargs):
+        super(ModelLabels, self).__init__(field=IntField(), *args, **kwargs)
+
+    def validate(self, value):
+        super(ModelLabels, self).validate(value)
+        if value and (len(set(value.values())) < len(value)):
+            self.error("Same label id appears more than once in model labels")