I would also like to mention that, I started hitting the following error 
with TG2 regularly.

first: sql has gone away 
and then the below error:
StatementError: (sqlalchemy.exc.InvalidRequestError) Can't reconnect until 
invalid transaction is rolled back 

we were never hitting this issue with TG1 though. I haven't changed 
wait_timeouts and any other variable in my DB. 

With Regards,
Dinesh.

On Wednesday, 3 May 2017 23:51:56 UTC-7, D R Dinesh Kumar wrote:
>
> Hi All,
>
> We were using Elixir with TG1 and we have recently migrated to TG2.
> Finding difficulty in hooking the TG2 session to Elixir session and 
> metadata. 
>
> we were using the following statement in TG1 for the hook:
> from turbogears.database import metadata as __metadata__
> from elixir import sqlalchemy
> __metadata__ = sqlalchemy.MetaData()
> __engine__ = sqlalchemy.create_engine("...')
> __metadata__.engine = __engine__
> setup_all()
> create_all()
>
> The above code was doing very good and didnt find any issues at all.
>
> Can you please help how to do the same in TG2? turbogears.database is not 
> available anymore.
>
> With Regards,
> Dinesh.
>

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