I would suggest taking these further questions to the pylons-discuss
list. This list is for development of Pyramid itself, not for how to use it.
On 5/23/11 13:29 , neurino wrote:
@Jasper:
your method seems to me a bit awkward, pylons used a module-level global
variable like DBSession almost everywhere and I guess I never had problems.
@Wichert: thanks, I'll check repoze.tm2, as for paster setup-app I
relied on what I read here:
http://groups.google.com/group/pylons-devel/browse_thread/thread/36aa6769ebda9e62
if there's an example somewhere of using paster setup-app with pyramid
please let me know
====
since we are discussing about paster:
what's a fine way to get in paster pshell (iPython) some variables
already set?
I was used (Pylons again) on first prompt I had at least myapp.model
already available as "model", the same for "Session", and I would
willingly add also some instances of my model too, I know how to get
models, DBSession and so on but I'd like to know how I could get them
preloaded.
Thanks again
neurino
On Mon, May 23, 2011 at 12:44 PM, Wichert Akkerman <wich...@wiggy.net
<mailto:wich...@wiggy.net>> wrote:
On 5/23/11 12:23 , neurino wrote:
> Creating tables and adding initial content is better done
with paster
setup-app or another separate command.
But setup-app is not present in pyramid.
setup-app is a PasteDeploy thing. You can use it with pyramid apps
if you want to, but I would recommend using a paster command
approach instead: much simpler and does not suffer from the many
problems setup-app has.
I understand your point and I'm also going, in production, to
move that
code in a setup script.
Anyway then, having:
import transaction
at the top of my models.py what do I have to take care when adding,
merging or removing content?
Personally I use a repoze.tm2 middleware to manage all my
transactions. That makes everything Just Work, and you never have to
worry about transactions again. I know other people prefer a more
pyramid-specific approach of using Pyramid events to manage
transactions.
And, back to my initial question:
in Pylons I had a Session instance named "session" i used in my
controllers like
model.session.add(anything)
model.session.commit()
what I'm supposed to do now?
models.DBSession().add(anything)
That is the exact same thing. DBSession is just a SQLAlchemy
ScopedSession object, same as your model.session object in a Pylons
1 project. You can use model.DBSession.add as well - SQLAlchemy will
do the same thing.
I'm not used to instantiate & call "Class().method" that much
and looks
me ugly but if it's the correct way to go with it...
If you do 'model.session.add' SQLAlchemy will internally do the same
thing: it finds the current session for your thread and runs add on it.
Wichert.
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