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added package storage.pzope

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git-svn-id: svn://svn.cy55.de/Zope3/src/cybertools/trunk@1542 fd906abe-77d9-0310-91a1-e0d9ade77398
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helmutm 2007-01-04 22:46:06 +00:00
parent fbcbff7734
commit 51a0a212ef
1 changed files with 10 additions and 5 deletions
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15
storage/pzope/README.txt
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@ -7,10 +7,14 @@ Zope-based Object Storage
>>> from zope.app.testing.setup import placefulSetUp, placefulTearDown >>> from zope.app.testing.setup import placefulSetUp, placefulTearDown
>>> site = placefulSetUp(True) >>> site = placefulSetUp(True)
As the Zope-based storage keeps track of the objects using unique ids
we need a utility that provides these. For testing we use a dummy
implementation; the real stuff is in zope.app.intids and there must
be a corresponding utility in the root site folder of your Zope.
>>> from zope import component >>> from zope import component
>>> from zope.app.intid.interfaces import IIntIds
>>> from cybertools.relation.tests import IntIdsStub >>> from cybertools.relation.tests import IntIdsStub
>>> component.provideUtility(IntIdsStub(), IIntIds) >>> component.provideUtility(IntIdsStub())
We first need a class from which we will create objects that later on We first need a class from which we will create objects that later on
will be stored in and retrieved from the storage. will be stored in and retrieved from the storage.
@ -31,13 +35,14 @@ from the corresponding factory in the `manager` module and calling
>>> from cybertools.storage.pzope.manager import storages >>> from cybertools.storage.pzope.manager import storages
>>> persistent = storages(c1) >>> persistent = storages(c1)
>>> uid = persistent.save('c1') >>> c1Uid = persistent.save('c1')
For loading an object we get a storage adapter to the object's class and For loading an object we get a storage adapter to the object's class and
call `load()` on it. call `load()` on it, providing the UID we had got back when saving the
object.
>>> persistent = storages(Content) >>> persistent = storages(Content)
>>> c2 = persistent.load(uid) >>> c2 = persistent.load(c1Uid)
>>> c2.title >>> c2.title
'changed' 'changed'