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>>> from zope.component import getUtility, queryUtility
>>> from dolmen.beaker.interfaces import ISessionConfig
>>> session_config = queryUtility(ISessionConfig)
>>> session_config.get('key')


dolmen.beaker initialize the beaker session when the traversing starts (traversing the IRootFolder object):

>>> from zope.event import notify
>>> import grokcore.component as grok
>>> from zope.publisher.browser import TestRequest
>>> from zope.publisher.interfaces.http import IHTTPRequest
>>> from zope.traversing.interfaces import BeforeTraverseEvent

First we create an instance of the Request:

>>> request = TestRequest()
>>> IHTTPRequest.providedBy(request)

We initalize our Session with the help of the BeforeTraverseEvent. This event will make an instance of a Session Object in the Request:

>>> from zope.component.hooks import getSite
>>> site = getSite()
>>> notify(BeforeTraverseEvent(site, request))

We can get the session object using two available adapters:

>>> from dolmen.beaker.interfaces import ISession
>>> session = ISession(request)
>>> session.__class__
<class 'beaker.session.SessionObject'>

Let’s assign an value to our session and save it:

>>> session['foo'] = 'bar'
>>> session['foo']

A new request will not have access to the session without traversing:

>>> newrequest = TestRequest()
>>> newrequest.response._cookies

>>> session = ISession(newrequest)
>>> session['foo']
Traceback (most recent call last):
KeyError: 'foo'

closure and invalidation

>>> cookie = request.response._cookies
>>> cookie
>>> from zope.publisher.interfaces import EndRequestEvent
>>> notify(EndRequestEvent(site, request))
>>> cookie = request.response._cookies
>>> cookie
{'': {'path': '/', 'value': '...'}}


>>> session = ISession(request)
>>> print session['foo']
>>> session.invalidate() # Or destroy, to get rid of everything
>>> session['foo']
Traceback (most recent call last):
KeyError: 'foo'
>>> print session
{'_id': '...'}

The Zope Session adapter

>>> from zope.session.interfaces import ISession as IZopeSession
>>> request = TestRequest()
>>> notify(BeforeTraverseEvent(site, request))
>>> zsession = IZopeSession(request)
>>> print zsession
<dolmen.beaker.session.ZopeSession object at ...>
>>> from zope.interface.verify import verifyObject
>>> verifyObject(IZopeSession, zsession)
>>> data = zsession['my_package']
>>> print data
<dolmen.beaker.session.NamespaceSessionData object at ...>
>>> data['someitem'] = 'test'
>>> print data['someitem']
>>> print zsession.keys()
['my_package.someitem', '_id']
>>> data = zsession['some.other.package']
>>> data['info'] = 'Grok !'
>>> print zsession.keys()
['my_package.someitem', '_id', '']


0.1 (2010-07-01)

  • Initial release
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File Name & Checksum SHA256 Checksum Help Version File Type Upload Date
dolmen.beaker-0.1.tar.gz (6.0 kB) Copy SHA256 Checksum SHA256 Source Jul 1, 2010

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