forked from gergely/calendar-social
61 lines
1.8 KiB
Python
61 lines
1.8 KiB
Python
# Calendar.social
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# Copyright (C) 2018 Gergely Polonkai
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Affero General Public License for more details.
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#
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <https://www.gnu.org/licenses/>.
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"""Metaclass for storing and accessing app state
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"""
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def get_state_base(self, key):
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"""Method to get a key from the state store
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"""
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return self.__get_state__(key)
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def set_state_base(self, key, value):
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"""Method to set a key/value in the state store
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"""
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self.__set_state__(key, str(value))
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def set_default_base(self, key, value):
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"""Method to set the default value of a key in the state store
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If key is already in the state store, this method is a no-op.
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"""
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self.__set_state_default__(key, str(value))
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def app_state_base(klass):
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"""Base class creator for AppStateMeta types
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:param klass: the class to extend
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:type klass: type
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:returns: a new class extending ``klass``
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:rtype: type
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"""
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# Construct the meta class based on the metaclass of ``klass``
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metaclass = type(
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klass.__name__ + 'BaseMeta',
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(type(klass),),
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{
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'__getitem__': get_state_base,
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'__setitem__': set_state_base,
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'setdefault': set_default_base,
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})
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return metaclass(klass.__name__ + 'Base', (klass,), {'__abstract__': True})
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