69 lines
1.9 KiB
Python
69 lines
1.9 KiB
Python
# zoo - versatile objects management
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# Copyright (C) 2016 Entr'ouvert
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#
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# This program is free software: you can redistribute it and/or modify it
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# under the terms of the GNU Affero General Public License as published
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# by 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 <http://www.gnu.org/licenses/>.
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import django
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from django.db.models import Transform, CharField, DateField
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from django.db.models.functions import Lower
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from django.contrib.postgres.fields import jsonb
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try:
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from django.db.models.fields.json import KeyTransform, KeyTransformTextLookupMixin
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except ImportError:
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from django.contrib.postgres.fields.jsonb import KeyTransform, KeyTransformTextLookupMixin
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class Unaccent(Transform):
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lookup_name = 'unaccent'
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function = 'immutable_unaccent'
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output_field = CharField()
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CharField.register_lookup(Unaccent)
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CharField.register_lookup(Lower)
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class Normalize(Transform):
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lookup_name = 'normalize'
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function = 'immutable_normalize'
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output_field = CharField()
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CharField.register_lookup(Normalize)
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class Date(Transform):
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lookup_name = 'timestamp'
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function = 'immutable_date'
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output_field = DateField()
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CharField.register_lookup(Date)
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class JSONUnaccent(KeyTransformTextLookupMixin, Unaccent):
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pass
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class JSONTimestamp(KeyTransformTextLookupMixin, Date):
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pass
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class JSONNormalize(KeyTransformTextLookupMixin, Normalize):
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pass
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KeyTransform.register_lookup(JSONUnaccent)
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KeyTransform.register_lookup(JSONTimestamp)
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KeyTransform.register_lookup(JSONNormalize)
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