it works!

db.py

@@ -203,6 +203,7 @@ class DDBTable(object):
         message = yield gen.Task(self._dynamodb(operation='Scan').call,
             TableName=self._get_table_name())
         data = [self.decode_item(item=item) for item in message['Items']]
+
         raise gen.Return(data)
 
 

measurement_viewer.py

@@ -18,13 +18,11 @@ class MainHandler(tornado.web.RequestHandler):
         #stations = self.get_stations()
         #stations = models.Station.get_all()
         #stations = models.Station.getall()
-        stations = yield models.Station.get("b1d12bb6-a3b7-43b8-b6ab-6d6e62cb794e")
-        s = stations.result()
+        stations = yield models.Station.get_all()
 
         measurement = yield models.Measurement.get("5c2be10b-5d33-47d7-95fe-b3f6fc29a3af")
-        m = measurement.result()
-
-        self.write("{0} {1} {2} {3} {4}<br />".format(s.id, s.city, s.longitude, s.latitude, s.name))
+        for s in stations:
+            self.write("{0} {1} {2} {3} {4}<br />".format(s.id, s.city, s.longitude, s.latitude, s.name))
 
         # measurement = models.Measurement.getlast(station=s.id)
         # self.write("".format())

models.py

@@ -9,7 +9,6 @@ from tornado.ioloop import IOLoop
 
 class DDBobject(object):
     @classmethod
-    @coroutine
     def from_dict(cls, data):
         return cls(**data)
 
@@ -39,6 +38,16 @@ class Station(DDBobject):
         result = yield DDBstations().add(station=self)
         return result
 
+    @classmethod
+    @coroutine
+    def get_all(cls):
+        data = yield DDBstations().get_all()
+        return_value = []
+        for station in data:
+            return_value.append(cls.from_dict(station))
+
+        return return_value
+
 
 class Type(DDBobject):
     stored = {}
@@ -84,11 +93,11 @@ class Measurement(DDBobject):
         data = yield DDBmeasurements().get(measurement_id)
 
         station = yield Station.get(data['station_id'])
-        data['station'] = station.result()
+        data['station'] = station
         del data['station_id']
 
         pollution_type = yield Type.get(data['type_id'])
-        data['pollution_type'] = pollution_type.result()
+        data['pollution_type'] = pollution_type
         del data['type_id']
 
         return cls.from_dict(data)
@@ -97,3 +106,8 @@ class Measurement(DDBobject):
     def save(self):
         result = yield DDBmeasurements().add(measurement=self)
         return result
+
+    @coroutine
+    def get_last(self, station_id):
+        # TODO
+        pass