2740774b3d
git-svn-id: svn://svn.cy55.de/Zope3/src/loops/trunk@2270 fd906abe-77d9-0310-91a1-e0d9ade77398
54 lines
2.1 KiB
Text
54 lines
2.1 KiB
Text
===============================================================
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loops - Linked Objects for Organization and Processing Services
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===============================================================
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($Id$)
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>>> from zope import component
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>>> from zope.traversing.api import getName
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>>> from loops.common import adapted
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>>> from loops.concept import Concept
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>>> from loops.setup import addAndConfigureObject
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Let's set up a loops site with basic and example concepts and resources.
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>>> from zope.app.testing.setup import placefulSetUp, placefulTearDown
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>>> site = placefulSetUp(True)
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>>> from loops.constraint.testsetup import TestSite
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>>> t = TestSite(site)
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>>> concepts, resources, views = t.setup()
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>>> tType = concepts.getTypeConcept()
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Constraints - Restrict Predicates and Types for Concept and Resource Assignments
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================================================================================
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We create a person type and an institution type and a corresponding
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predicate.
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>>> tPerson = addAndConfigureObject(concepts, Concept, 'person',
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... title='Person', conceptType=tType)
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>>> tInstitution = addAndConfigureObject(concepts, Concept, 'institution',
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... title='Institution', conceptType=tType)
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>>> tPredicate = concepts.getPredicateType()
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>>> isEmployedBy = addAndConfigureObject(concepts, Concept, 'isemployedby',
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... title='is Employed by', conceptType=tPredicate)
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The static constraint concept type has already been created during setup.
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We create a simple constraint that
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>>> tStaticConstraint = concepts['staticconstraint']
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>>> cstr01 = addAndConfigureObject(concepts, Concept, 'cstr01',
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... title='Demo Constraint', conceptType=tStaticConstraint)
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>>> aCstr01 = adapted(cstr01)
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>>> aCstr01.predicates = [isEmployedBy]
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>>> aCstr01.types = [tInstitution]
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We can now use this constraint to control the parent concepts a person
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may be assigned to.
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>>> from loops.constraint.base import hasConstraint
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>>> tPerson.assignParent(cstr01, hasConstraint)
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