Hey folks, not sure where this belongs, but it seems to be a fairly
under-the-hood question, so I'll try here first.
I have some utilities that get registered in various packages in zcml.
The packages are included from the main apps configure.zml file with
<include package="xornot.model" />
and in that packages configure.zcml file I have:
<utility provides="xornot.model.interfaces.IResourceMappers"
component="xornot.model.mappers.model_mappers" name="model_mappers"/>
The configure.zcml from xornot.model *is* definitely being parsed,
putting garbage in there stops app start up. Here's what I can figure
out, I have another a factory that looks up that utility from the
registry. In my app.py file where I set up the registry using the
Configurator object, I have the following code, *after* all
configuration is done:
# instantiate ModelFactory, does all the SQLA startup housekeeping
model_factory = ModelFactory(registry=registry, **settings)
# register model factory as generic adapter of request to provide
model
registry.registerAdapter(model_factory, (IRequest,), Interface,
'model')
Now here's what's weird. The ModelFactory does not find that utility.
Looking at ._registered_utilities of the registry during ModelFactory
init shows no registration of my model mapper utility. But when I drop
into the debugger from the root factory, I can find that utility in
the registry. I want to set up the ModelFactory once and only once on
start up ( it makes SQLA mappers, which I believe are shared between
threads ).
I can't figure out for the life of me why the utilities aren't in
there, it must be some innards thing I don't grok. I thought all
included zcml packages were loaded in during the config setup code.
Any help much appreciated. I will include my app code for ref:
thanks
iain
def app(global_config, **settings):
"return a wsgi app with a xornot ModelFactory in the registry"
from xornot.model.interfaces import IAbstractModel
from xornot.model.factories import ModelFactory
# allow ini file's to set the app package and configure.zcml file
app_package = settings.get('app_package', None)
zcml_file = settings.get('configure_zcml', 'configure.zcml')
# we are using the zope global site manager
registry = getGlobalSiteManager()
config = Configurator( registry=registry )
config.include('pyramid_zcml')
config.setup_registry(settings=settings, root_factory=DefaultRoot,
request_factory=Request )
if app_package:
config.load_zcml("%s:%s" % (app_package, zcml_file) )
else:
# load from current package
config.load_zcml(zcml_file)
# instantiate ModelFactory, does all the SQLA startup
housekeeping
# XXX: this guy is not finding utilities registered in included
packages!
model_factory = ModelFactory(registry=registry, **settings)
# register model factory as generic adapter of request to provide
model
registry.registerAdapter(model_factory, (IRequest,), Interface,
'model')
# get the base app and return it
app = config.make_wsgi_app()
return app
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