Fix: Catch DBApi error so that timeout errors don't lock up the software.

brewman/models/validation_exception.py

@@ -1,7 +1,8 @@
 from pyramid.response import Response
-from sqlalchemy.exc import OperationalError, IntegrityError
+from sqlalchemy.exc import OperationalError, IntegrityError, DBAPIError
 import transaction
 
+
 class ValidationError(Exception):
     def __init__(self, message, Errors=None):
         self.message = message
@@ -10,6 +11,7 @@ class ValidationError(Exception):
 
         # Now for your custom code...
         self.Errors = Errors
+
     def __str__(self):
         return self.message
 
@@ -18,9 +20,11 @@ def TryCatchFunction(f):
     def _decorator(self, *args, **kwargs):
         try:
             return f(self, *args, **kwargs)
-        except (ValidationError, ValueError, KeyError, AttributeError, TypeError, OperationalError, IntegrityError) as ex:
+        except (ValidationError, ValueError, KeyError, AttributeError, TypeError, OperationalError, IntegrityError,
+                DBAPIError) as ex:
             transaction.abort()
             response = Response("Failed validation: {0}".format(str(ex)))
             response.status_int = 500
             return response
+
     return _decorator