70810bdb6d
git-svn-id: svn://svn.cy55.de/Zope3/src/loops/trunk@1645 fd906abe-77d9-0310-91a1-e0d9ade77398
77 lines
1.9 KiB
Text
77 lines
1.9 KiB
Text
===============================================================
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loops - Linked Objects for Organization and Processing Services
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===============================================================
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The loops expert - knows what is in a loops site and how to make
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use of it.
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($Id$)
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The query stuff depends on hurry.query, see
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http://cheeseshop.python.org/pypi/hurry.query
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Setting up a loops Site and Utilities
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=====================================
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Let's do some basic set up
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>>> from zope import component, interface
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>>> from zope.app.testing.setup import placefulSetUp, placefulTearDown
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>>> site = placefulSetUp(True)
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and build a simple loops site with a concept manager and some concepts
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(with a relation registry, a catalog, and all the type machinery - what
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in real life is done via standard ZCML setup or via local utility
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configuration):
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>>> from loops.expert.testsetup import TestSite
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>>> t = TestSite(site)
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>>> concepts, resources, views = t.setup()
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>>> #sorted(concepts)
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>>> #sorted(resources)
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>>> len(concepts) + len(resources)
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35
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Type- and Text-based Queries
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============================
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>>> from loops.expert import query
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>>> qu = query.Title('ty*')
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>>> list(qu.apply())
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[0, 1, 39]
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>>> qu = query.Type('loops:*')
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>>> len(list(qu.apply()))
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35
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>>> qu = query.Type('loops:concept:predicate')
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>>> len(list(qu.apply()))
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6
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>>> qu = query.Type('loops:concept:predicate') & query.Title('t*')
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>>> list(qu.apply())
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[1]
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Relationship-based Queries
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==========================
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In addition to the simple methods of concepts and resources for accessing
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relations to other objects the expert package provides methods
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for selecting and filtering related objects using our basic querying
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syntax (that in turn is based on hurry.query).
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>>> stateNew = concepts['new']
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>>> qu = query.Resources(stateNew)
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>>> list(qu.apply())
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[55, 60]
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Fin de partie
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=============
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>>> placefulTearDown()
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