Make message items printable

django/website/data_layer/models.py

@@ -12,5 +12,12 @@ class Message(DataLayerModel):
     body = models.TextField()
     timestamp = models.DateTimeField(null=True)
 
+    def __unicode__(self):
+        return "{}: '{}' @{}".format(
+            self.id,
+            self.body,
+            self.timestamp
+        )
+
 # TODO: rename this class
 Item = Message