how about?

models/plugin_name/pre.py
models/plugin_name/call.py
models/plugin_name/post.py

where pre is called before any other model, post after all models and
call only when a plugin action is called.
the packaging would still work. We would need to add a couple of line
in gluon/compileapp/run_models_in


On Nov 8, 1:21 am, Thadeus Burgess <thade...@thadeusb.com> wrote:
> Meaning the only thing that needs to be changed is the admin plugin packing.
>
> -Thadeus
>
> On Sun, Nov 8, 2009 at 1:21 AM, Thadeus Burgess <thade...@thadeusb.com>wrote:
>
> > Or we could throw yet another naming convention into the mix.
>
> > plugins that need pre-execution get a 0 appended before the name.
>
> > plugins that need post-execution, get a z appended
>
> > 0_plugin_comments.py
> > z_plugin_layouts.py
>
> > -Thadeus
>
> > On Sun, Nov 8, 2009 at 1:11 AM, Thadeus Burgess 
> > <thade...@thadeusb.com>wrote:
>
> >> Maybe execute them in alpha order. Plug-ins should not depend on other
> >> plug-ins?
>
> >> -Thadeus
>
> >> On Sun, Nov 8, 2009 at 1:00 AM, mdipierro <mdipie...@cs.depaul.edu>wrote:
>
> >>> It seems to me dispatching only affects controllers and the current
> >>> mechanism works well for controllers.
>
> >>> The problem is models. As you say plugin models should be able to say
> >>> "execute this before everything else" and "execute that after
> >>> everything else". The problem is what happens when two plugins say
> >>> "execute this before everything else"? I do not know how to solve this
> >>> problem.
>
> >>> Of course you can have plugins completely defined in module files and
> >>> you can import them explicitly in your code where needed. To me this
> >>> is a special type of plugin.
>
> >>> Massimo
>
> >>> On Nov 7, 8:52 pm, Thadeus Burgess <thade...@thadeusb.com> wrote:
> >>> > I have a solution, but you might not like it.
>
> >>> > web2py needs a dedicated plugin subsystem.
>
> >>> > With a dedicated plugin dispatcher, things like this can be controlled,
> >>> a
> >>> > plug-in can specify a setting PRE_MODEL/POST_MODEL that says "execute
> >>> this
> >>> > plugin before/after models are executed".
>
> >>> > I still don't want plug-ins assuming my database... yes I could edit
> >>> the
> >>> > plug-in, but your whole thing is about having plug-ins that you don't
> >>> have
> >>> > to edit! But really it comes down to the fact that I am a software
> >>> engineer,
> >>> > and I like to be in control as much as possible.
>
> >>> > -Thadeus
>
> >>> > On Sat, Nov 7, 2009 at 7:14 PM, mdipierro <mdipie...@cs.depaul.edu>
> >>> wrote:
>
> >>> > > the current plugin mechanism has a problem. There is no way to
> >>> specify
> >>> > > what should be executed before the other models and what after the
> >>> > > other models. They are executed in alphabetical order as any other
> >>> > > model. This problem needs a solution.
>
> >>> > > Executing all plugins before models is not a good solution because
> >>> > > some plugins may need a model. Moreover some plugin may act on
> >>> > > existing models.
>
> >>> > > I do not have a solution to this problem.
>
> >>> > > Plugins should assume a db (unless they define their own). You may
> >>> not
> >>> > > call it "db" but they should be able to reference it.
>
> >>> > > Some plugins may need auth, crud or service (unless they define their
> >>> > > own).
>
> >>> > > Ideally plugins should expose their own configuration page
> >>> (accessible
> >>> > > only to admin) and should perhaps store configuration settings in a
> >>> > > file.
>
> >>> > > Massimo
>
> >>> > > On Nov 7, 6:11 pm, Thadeus Burgess <thade...@thadeusb.com> wrote:
> >>> > > > Love the module Mr Freeze.
>
> >>> > > > I have some same questions about how plug-ins would find out about
> >>> > > certain
> >>> > > > things in your app.
>
> >>> > > > Say I want to write a plugin_ratingsystem.py, how would I pass
> >>> settings
> >>> > > > along to the plug-in from my db.py? Since plug-in models get
> >>> executed
> >>> > > after
> >>> > > > db.py.
>
> >>> > > > What about making it so any model plugin_<name>.py get executed
> >>> first by
> >>> > > > web2py, in alphabetical order of name. This way plug-ins can define
> >>> > > classes
> >>> > > > and be explicitly called for execution.
>
> >>> > > > I agree with Mr. Freeze. plug-ins should not assume db, auth, crud,
> >>> > > etc...
> >>> > > > etc... Perhaps plug-ins that use database should need to be
> >>> explicitly
> >>> > > > called
>
> >>> > > > plugin_comments.init(db=mydb, othersetting="hi")
>
> >>> > > > -Thadeus
>
> >>> > > > On Sat, Nov 7, 2009 at 4:59 PM, mr.freeze <nat...@freezable.com>
> >>> wrote:
>
> >>> > > > > > I think plugins should assume db, auth, crud, mail, service.
> >>> > > > > > Don't you do the same with your code? A plugin is nothing more
> >>> than a
> >>> > > > > > means to package and distribute your code.
>
> >>> > > > > I don't think code should ever assume anything.  I used the
> >>> instances
> >>> > > > > since they are in the same model.  If I were to make a module out
> >>> of
> >>> > > > > this it would take the instances as arguments.
>
> >>> > > > > > I think the plugin should assume db. I do not see a problem
> >>> with
> >>> > > > > > people editing the plugin anyway.
> >>> > > > > > That could be a way to customize it.
>
> >>> > > > > Won't this make upgrading plugins a pain? You would have to go
> >>> back
> >>> > > > > through and edit every plugin that you modified before upgrade.
>
> >>> > > > > I'll probably just make a module since it will be more reusable.
> >>> > > > > Thanks for checking it out.
>
> >>> > > > > On Nov 7, 4:47 pm, mdipierro <mdipie...@cs.depaul.edu> wrote:
> >>> > > > > > On Nov 7, 4:06 pm, "mr.freeze" <nat...@freezable.com> wrote:
>
> >>> > > > > > > Hmmm...Interesting proposition.  A couple of questions first:
>
> >>> > > > > > > 1) How will the plugin know what the instances of
> >>> Auth,Crud,Mail
> >>> > > and
> >>> > > > > > > DAL are named? Are auth,crud,mail and db pretty much reserved
> >>> words
> >>> > > > > > > now?
>
> >>> > > > > > I think plugins should assume db, auth, crud, mail, service.
> >>> > > > > > Don't you do the same with your code? A plugin is nothing more
> >>> than a
> >>> > > > > > means to package and distribute your code.
>
> >>> > > > > > > 2) How would I let the user decide which db to put the tables
> >>> in if
> >>> > > > > > > they have multiple? Do they have to edit the plugin?
>
> >>> > > > > > I think the plugin should assume db. I do not see a problem
> >>> with
> >>> > > > > > people editing the plugin anyway.
> >>> > > > > > That could be a way to customize it.
>
> >>> > > > > > I do not exclude a more specialized plugin that assume more
> >>> and/or
> >>> > > > > > something different.
>
> >>> > > > > > > On Nov 7, 3:57 pm, mdipierro <mdipie...@cs.depaul.edu>
> >>> wrote:
>
> >>> > > > > > > > I think this is nice.
>
> >>> > > > > > > > If you now call that files models/plugin_settings.py and if
> >>> all
> >>> > > > > tables
> >>> > > > > > > > have a prefix plugin_settings_*
>
> >>> > > > > > > > then you can distribute it as a web2py.plugin.settings.py
>
> >>> > > > > > > > Massimo
>
> >>> > > > > > > > On Nov 7, 3:22 pm, "mr.freeze" <nat...@freezable.com>
> >>> wrote:
>
> >>> > > > > > > > > I put this together to let non-developer admins manage
> >>> settings
> >>> > > > > > > > > through appadmin.  It basically puts all settings that
> >>> are
> >>> > > string,
> >>> > > > > > > > > int, double or boolean in the database.  I would like
> >>> feedback
> >>> > > on
> >>> > > > > the
> >>> > > > > > > > > perils/merits of doing this.
>
> >>> > > > > > > > >http://www.web2pyslices.com/main/slices/take_slice/26
>
> >>> > > > > > > > > Thanks!
>
>
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