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# -*- coding: utf-8 -*- |
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from senaite.core.schema.interfaces import IBaseField |
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from z3c.form.datamanager import AttributeField |
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from z3c.form.datamanager import DictionaryField |
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from z3c.form.interfaces import NO_VALUE |
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from zope.component import adapts |
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from zope.interface import Interface |
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class AttributeDataManager(AttributeField): |
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"""Senaite Data Manager for Attribute Fields |
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Original implementation: `z3c.form.datamanager` |
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NOTE: The original implementation does not use the setter/getter of the |
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field, see z3c/form/datamanager.txt for explanation. |
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However, we want to have that control at field level and also be able to |
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execute some custom logic when getting/setting the values, e.g. fire |
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modification events, check permissions, audit-logging etc. |
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""" |
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adapts(Interface, IBaseField) |
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def __init__(self, context, field): |
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super(AttributeDataManager, self).__init__(context, field) |
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def get(self): |
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"""Delegate to the field getter |
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""" |
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return self.field.get(self.adapted_context) |
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def set(self, value): |
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"""Delegate to the field setter |
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""" |
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self.field.set(self.adapted_context, value) |
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def query(self, default=NO_VALUE): |
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"""Delegate to the field `get_raw` method |
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This method is called from widget `update` to get the value. |
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It should therefore return a value that is suitable, e.g. not objects. |
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""" |
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get_raw = getattr(self.field, "get_raw", None) |
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if not callable(get_raw): |
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return super(AttributeDataManager, self).query(default=default) |
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return get_raw(self.adapted_context) |
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class DictionaryDataManager(DictionaryField): |
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"""Senaite Data Manager for Dictionary Fields |
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Original implementation: `z3c.form.datamanager` |
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Currently only implemented as a boiler plate for eventual later use. |
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""" |
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adapts(dict, IBaseField) |
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def __init__(self, data, field): |
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super(DictionaryDataManager, self).__init__(data, field) |
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senaite /
senaite.core
