add chassis utils

chassis/utils.py

@@ -0,0 +1,14 @@
+from datetime import datetime
+from sqlalchemy.orm import class_mapper
+
+
+def model_to_dict(model):
+    if not model:
+        return
+    model_dict = {}
+    for key, column in class_mapper(model.__class__).c.items():
+        if isinstance(getattr(model, key), datetime):
+            model_dict[column.name] = str(getattr(model, key))
+        else:
+            model_dict[column.name] = getattr(model, key, None)
+    return model_dict