1 files changed, 17 insertions, 0 deletions
diff --git a/megapixels/app/server/json_encoder.py b/megapixels/app/server/json_encoder.py
new file mode 100644
index 00000000..89af578a
--- /dev/null
+++ b/megapixels/app/server/json_encoder.py
@@ -0,0 +1,17 @@
+from sqlalchemy.ext.declarative import DeclarativeMeta
+from flask import json
+
+class AlchemyEncoder(json.JSONEncoder):
+  def default(self, o):
+    if isinstance(o.__class__, DeclarativeMeta):
+      data = {}
+      fields = o.__json__() if hasattr(o, '__json__') else dir(o)
+      for field in [f for f in fields if not f.startswith('_') and f not in ['metadata', 'query', 'query_class']]:
+        value = o.__getattribute__(field)
+        try:
+          json.dumps(value)
+          data[field] = value
+        except TypeError:
+          data[field] = None
+      return data
+    return json.JSONEncoder.default(self, o)