pyramid_persistence

from persistent.mapping import PersistentMapping


class MyModel(PersistentMapping):
    #These two fields are used by the Pyramid engine to create a tree hierarchy.
    #That tree automatically provides navigation to the objects on the object tree.
    #Thats not the only way to create navigation in Pyramid.
    #The tree also provides a substrate for event propogation
    __parent__ = __name__ = None


#Usually "Views" and "Models" are separate, but I will just dump it all here for visibility sake.
#Somewhere in the configuration (declarative or otherwise), some route (e.g. config.add_route("myroute", someURLParams))
#will have defined what route_name='myroute' resolves to

from pyramid.view import view_config
from pyramid.response import Response
class OtherModel(MyModel):
    @view_config(route_name='myroute')
    def webFunction(request):
        return Response("OK")

def appmaker(zodb_root):
    if not 'app_root' in zodb_root:
        app_root = MyModel()
        zodb_root['app_root'] = app_root
        
        #otherModel can thus be reached by two different urls. One from the view_config route (assuming OtherModel
        #  is a singleton
        #the other from its location in the object tree, via traversal
        #  i.e /otherModel or "/aLeafOrWhatever", no idea which :)
        otherModel = OtherModel()
        otherModel.__parent__ = app_root
        otherModel.__name__   = "aLeafOrWhatever"
        app_root['otherModel'] = otherModel
        
        import transaction
        transaction.commit()
    return zodb_root['app_root']