65 lines
1.9 KiB
Python
65 lines
1.9 KiB
Python
# scopes.server.browser
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import json
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from zope.interface import implementer
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from scopes.interfaces import IContainer, IReference, IView
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views = {} # registry for all views: {name: {prefix: viewClass, ...}, ...}
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def register(name, *contextTypes):
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"""Use as decorator: `@register(name, class_or_prefix, ...).
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No class (or `None` or `''`) means default view for all classes."""
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def doRegister(factory):
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implementer(IView)(factory)
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nameEntry = views.setdefault(name, {})
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for ct in contextTypes:
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if not isinstance(ct, string):
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ct = ct.prefix
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nameEntry[ct] = factory
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else:
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nameEntry[''] = factory
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return factory
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return doRegister
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def getView(request, ob, name):
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nameEntry = views.get(name)
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if nameEntry is None:
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return None
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factory = nameEntry.get(ob.prefix)
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if factory is None:
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factory = nameEntry.get('')
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if factory is None:
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return None
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return factory(ob, request)
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@register('index.html')
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@register('index.json')
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class DefaultView:
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def __init__(self, context, request):
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self.context = context
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self.request = request
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def __call__(self):
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result = self.prepareResult()
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return self.render(result)
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def prepareResult(self):
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ob = self.context
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result = ob.asDict()
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if IContainer.providedBy(ob):
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result['items'] = [v.asDict() for v in ob.values()]
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if IReference.providedBy(ob):
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target = ob.getTarget()
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if target:
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result['target'] = target.asDict()
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if IContainer.providedBy(target):
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result['target']['items'] = [v.asDict() for v in target.values()]
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return result
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def render(self, result):
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self.request.response.setHeader('Content-type', 'application/json; charset=utf-8')
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return json.dumps(result).encode('UTF-8')
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