[Zope3-Users] generations and utilities

2006-01-31 Thread Paolo Invernizzi 

Hello,

I've developed a content object for zope and I'm using the install.py 
script in a generation package to install some prebuild content 
instances in a folder, and everything works well.


I'm now trying to add a Catalog plus IntIds to do some search... but I'm 
doing  something wrong...


I cannot find the right way to install an IntIds (at least!) in the 
global site (I don't care about local sites) and populate the 
application via a generation install.py


Must I move the IntIds and Catalog instantiation/registration outside 
the script?


def evolve(context):
Install an articles folder full of pre-made articles

root = context.connection.root()
app = root['Application']

# app is a ISite...
assert ISite.providedBy(app)

# get the sitemanager
sitemanager = app.getSiteManager()
default = sitemanager['default']

# add an intids
intids = IntIds()
default['intids'] = intids
intids_reg = UtilityRegistration('', IIntIds, intids)
default.registrationManager.addRegistration(intids_reg)
intids_reg.status = ActiveStatus

# add a catalog
catalog = Catalog()
default['catalog'] = catalog
catalog_reg = UtilityRegistration('', ICatalog, catalog)
default.registrationManager.addRegistration(catalog_reg)
catalog_reg.status = ActiveStatus

# This bangs with
#  File 
/Users/arathorn/local/Zope-3_2_0/lib/python/zope/interface/adapter.py, 
line 481, in subscribers

# subscribers = [subscription(*objects)
# File 
/Users/arathorn/local/Zope-3_2_0/lib/python/zope/app/catalog/catalog.py, 
line 130, in indexAdded

# index.__parent__.updateIndex(index)
# File 
/Users/arathorn/local/Zope-3_2_0/lib/python/zope/app/catalog/catalog.py, 
line 68, in updateIndex

# uidutil = zapi.getUtility(IIntIds)
# File 
/Users/arathorn/local/Zope-3_2_0/lib/python/zope/component/__init__.py, 
line 257, in getUtility

# raise ComponentLookupError(interface, name)
# zope.component.interfaces.ComponentLookupError: (InterfaceClass 
zope.app.intid.interfaces.IIntIds, '')

#catalog['title'] = FieldIndex('title', IArticle)

print ===
print Installing prebuild articles...
print ===

app['articles'] = articles = Articles()
... etc etc...


Thanks!

Paolo



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Re: [Zope3-Users] generations and utilities

2006-01-31 Thread Gary Poster 


On Jan 31, 2006, at 11:16 AM, Paolo Invernizzi wrote:


Hello,

I've developed a content object for zope and I'm using the  
install.py script in a generation package to install some prebuild  
content instances in a folder, and everything works well.


I'm now trying to add a Catalog plus IntIds to do some search...  
but I'm doing  something wrong...


This smells like an unhelpful exception, swallowing the real problem  
down deeper in the code.  I bet it's just that you haven't added the  
key reference package or something like that.  Have you included  
zope.app.keyreference in your ZCML?


Gary
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