30 lines
1.1 KiB
Python
30 lines
1.1 KiB
Python
# authentic2 - versatile identity manager
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# Copyright (C) 2010-2020 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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from django.contrib.postgres.fields import ArrayField
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from django.db.models import Func, Subquery
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class ArraySubquery(Func):
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"""A Postgres ARRAY() expression"""
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function = 'ARRAY'
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arity = 1
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def __init__(self, expression, output_field=None):
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expression = Subquery(expression)
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super().__init__(expression, output_field=ArrayField(output_field))
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