The best resource I know is http://zodb.readthedocs.io/en/latest/transactions.html along with staring at various implementations of data managers. A good one to look at would be zope.sqlalchemy which is the data manager implementation for sqlalchemy sessions. There is also repoze.sendmail with a fairly tricky one for sending emails.
The main reason to make a data manager for a non-transactional endpoint is if you want the transaction to abort when the server is inaccessible. Other than that, you can actually get really far by just using `tm.addAfterCommitHook()` to do the work after a successful commit. For example, if writing to elasticsearch is not mission critical you could use the hook, allow it to fail but still commit data to your rdbms, and have a background job sync the failed attempt later. - Michael On Mon, Jan 23, 2017 at 12:11 PM, Srikanth Bemineni < bemineni.srika...@gmail.com> wrote: > Hi, > > Are there any tutorials to write custom data mangers. I am thinking of > writing a custom data manager for a elastic search object, if database > commit succeeds. Is this good approach to solve this problem? > > What is the difference between data manager and resource manger. ? > http://transaction.readthedocs.io/en/latest/api.html > > Srikanth Bemineni > > -- > You received this message because you are subscribed to the Google Groups > "pylons-discuss" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to pylons-discuss+unsubscr...@googlegroups.com. > To post to this group, send email to pylons-discuss@googlegroups.com. > To view this discussion on the web visit https://groups.google.com/d/ > msgid/pylons-discuss/14052a61-ebbf-47ed-b8d0-199f61af68a4% > 40googlegroups.com > <https://groups.google.com/d/msgid/pylons-discuss/14052a61-ebbf-47ed-b8d0-199f61af68a4%40googlegroups.com?utm_medium=email&utm_source=footer> > . > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "pylons-discuss" group. To unsubscribe from this group and stop receiving emails from it, send an email to pylons-discuss+unsubscr...@googlegroups.com. To post to this group, send email to pylons-discuss@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/pylons-discuss/CAKdhhwHu9jMpHY60MoZiARjWby_Lmp5QE2ka6q77tbFjr8w3qw%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
