megrok.nozodb 0.1

This package allows you to run grok without the zodb

The main purpose of this package is to provide support for enabling Grok applications to be run as aster served WSGI applications without using the zodb.

Using megrok.nozodb

To setup a grok environment which works without the zodb you have to replace the paster-application-factory which typically is located in the debug.ini and in the deploy.ini: To be concrete replace grokcore.startup#… with megrok.nozodb#nozodb

[app:grok] use = egg:megrok.nozodb#nozodb

The next you have to do is setting up global utility which acts as an ApplicationRoot which is a starting point for your application. megrok.nozodb has an ungrokked default one. You can subclass from it or provide your own stuff which acts as ApplicationRoot.:

>>> from megrok.nozodb import ApplicationRoot

>>> class MyApplicationRoot(ApplicationRoot):
...     pass

>>> myapp = MyApplicationRoot()
>>> from zope.site.interfaces import IRootFolder
>>> IRootFolder.providedBy(myapp)
True

>>> from grok.interfaces import IApplication
>>> IApplication.providedBy(myapp)
True

>>> from zope.location import ILocation
>>> ILocation.providedBy(myapp)
True

>>> from zope.interface.verify import verifyObject
>>> from zope.component.interfaces import ISite
>>> verifyObject(ISite, myapp)
True

API Documentation

We have to create a simple site definition file, which is also quite plain:

 >>> import os, tempfile
 >>> temp_dir = tempfile.mkdtemp()

 >>> sitezcml = os.path.join(temp_dir, 'site.zcml')
 >>> open(sitezcml, 'w').write('<configure />')

 >>> zope_conf = os.path.join(temp_dir, 'zope.conf')
 >>> open(zope_conf, 'wb').write('''
 ... site-definition %s
 ...
 ... <zodb>
 ... </zodb>
 ...
 ... <eventlog>
 ...   <logfile>
 ...     path STDOUT
 ...   </logfile>
 ... </eventlog>
 ... ''' %sitezcml)


 >>> from megrok.nozodb import nozodb_factory
 >>> app_factory = nozodb_factory({'zope_conf': zope_conf})

Clean up the temp_dir

  >>> import shutil
  >>> shutil.rmtree(temp_dir)

Changelog

0.1 (2010-11-04)

• Initial release