625d14a68c
git-svn-id: svn://svn.cy55.de/Zope3/src/cybertools/trunk@2064 fd906abe-77d9-0310-91a1-e0d9ade77398
43 lines
1.3 KiB
Text
43 lines
1.3 KiB
Text
===========================
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Schema and Field Management
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===========================
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($Id$)
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>>> from cybertools.composer.schema import Schema
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>>> from cybertools.composer.schema import Field
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We start with setting up a schema with fields.
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>>> serviceSchema = Schema(
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... Field(u'title', renderFactory=None),
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... Field(u'description'),
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... Field(u'start'),
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... Field(u'end'),
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... Field(u'capacity'),
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... )
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For using a schema we need some class that we can use for creating
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objects.
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>>> class Service(object):
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... pass
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The schema will be connected with an object via an instance adapter.
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In addition, we need a field instance adapter that cares for the
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correct conversion of input data to context attributes.
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>>> from cybertools.composer.schema.instance import Editor
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>>> from cybertools.composer.schema.field import FieldInstance
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>>> from zope import component
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>>> component.provideAdapter(Editor, (Service,), name="service.edit")
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>>> component.provideAdapter(FieldInstance)
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>>> srv = Service()
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>>> inst = component.getAdapter(srv, name='service.edit')
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>>> inst.template = serviceSchema
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>>> inst.applyTemplate(data=dict(title='Service', capacity='30'))
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<...FormState object ...>
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>>> srv.title, srv.description, srv.capacity
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(u'Service', u'', u'30')
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