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# -*- coding: utf-8 -*- |
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# |
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# This file is part of SENAITE.CORE. |
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# |
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# SENAITE.CORE is free software: you can redistribute it and/or modify it under |
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# the terms of the GNU General Public License as published by the Free Software |
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# Foundation, version 2. |
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# |
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# This program is distributed in the hope that it will be useful, but WITHOUT |
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# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS |
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# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more |
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# details. |
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# |
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# You should have received a copy of the GNU General Public License along with |
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# this program; if not, write to the Free Software Foundation, Inc., 51 |
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# Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
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# |
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# Copyright 2018-2023 by it's authors. |
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# Some rights reserved, see README and LICENSE. |
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from bika.lims import api |
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from plone.z3cform.fieldsets.interfaces import IDescriptiveGroup |
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from z3c.form.interfaces import ISubForm |
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from z3c.form.widget import Widget |
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from zope.component import getUtility |
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from zope.component.interfaces import IFactory |
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class BaseWidget(Widget): |
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def get_form(self): |
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"""Return the current form of the widget |
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""" |
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if not self.form: |
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return None |
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form = self.form |
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# form is a fieldset group |
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if IDescriptiveGroup.providedBy(form): |
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form = form.parentForm |
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# form is a subform (e.g. DataGridFieldObjectSubForm) |
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if ISubForm.providedBy(form): |
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form = form.parentForm |
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return form |
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def get_context(self): |
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"""Get the current context |
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NOTE: If we are in the ++add++ form, `self.context` is the container! |
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Therefore, we create one here to have access to the methods. |
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""" |
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schema_iface = self.field.interface if self.field else None |
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if schema_iface and schema_iface.providedBy(self.context): |
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return self.context |
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# we might be in a subform, so try first to retrieve the object from |
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# the base form itself first |
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form = self.get_form() |
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portal_type = getattr(form, "portal_type", None) |
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context = getattr(form, "context", None) |
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if api.is_object(context): |
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if api.get_portal_type(context) == portal_type: |
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return context |
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if not self.context: |
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return None |
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# Hack alert! |
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# we are in ++add++ form and have no context! |
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# Create a temporary object to be able to access class methods |
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if not portal_type: |
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portal_type = api.get_portal_type(self.context) |
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portal_types = api.get_tool("portal_types") |
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fti = portal_types[portal_type] |
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factory = getUtility(IFactory, fti.factory) |
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context = factory("temporary") |
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# mark the context as temporary |
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context._temporary_ = True |
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# hook into acquisition chain |
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context = context.__of__(self.context) |
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return context |
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