transaction.doom() is a good way. Another is to register a commit_veto hook in pyramid_tm. It is a hook that is invoked any time it would be about to commit, giving you a chance to stop it. Advantage of the veto is that you can register it from settings globally.
- Michael > On Aug 16, 2022, at 10:42, Mike Orr <sluggos...@gmail.com> wrote: > > On Mon, Aug 15, 2022 at 3:46 PM Jonathan Vanasco <jvana...@gmail.com> wrote: >> >> >> I second what Michael said. The sqlalchemy starter template is the right >> way to go. >> >> The major thing this template does, is provide you with the glue between a >> SQLAlchemy "Session" and the pyramid request. See : >> https://github.com/Pylons/pyramid-cookiecutter-starter/blob/latest/%7B%7Bcookiecutter.repo_name%7D%7D/%7B%7Bcookiecutter.repo_name%7D%7D/sqlalchemy_models/__init__.py#L87-L127 >> >> If you run pyramid_tm (https://pypi.org/project/pyramid-tm/) you can then >> use zope.sqlalchemy (https://pypi.org/project/zope.sqlalchemy/) to bind the >> session to the transaction. >> >> You don't need to use SQLAlchemy's ORM. You can just use SQLAlchemy Core >> (https://docs.sqlalchemy.org/en/14/core/) to do everything. You can also >> access the underlying psycopg2 connections through SQLAlchemy when you want. > > Is there a way to make 'pyramid_tm' always roll back even on success? > I looked in the code and there seemed to be no flag for that, and I'd > either have to call 'transaction.doom()' in a subscriber or patch the > obscure code several levels deep. > > -- > 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 view this discussion on the web visit > https://groups.google.com/d/msgid/pylons-discuss/CAH9f%3DuqT58npmt6_sbfXJpVZ4hX7PNJdj1WqYXeXo7rJfhwPQQ%40mail.gmail.com. -- 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 view this discussion on the web visit https://groups.google.com/d/msgid/pylons-discuss/D770A14C-D365-42CC-9DCB-9D596E7B6B80%40gmail.com.
