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20 lines
712 B
Python
20 lines
712 B
Python
from django.contrib.postgres.aggregates import JSONBAgg
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from django.db.models import F, Func
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class CollateAsChar(Func):
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"""
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Disregard localization by collating a field as a plain character string. Helpful for ensuring predictable ordering.
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"""
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function = 'C'
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template = '(%(expressions)s) COLLATE "%(function)s"'
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class EmptyGroupByJSONBAgg(JSONBAgg):
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"""
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JSONBAgg is a builtin aggregation function which means it includes the use of a GROUP BY clause.
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When used as an annotation for collecting config context data objects, the GROUP BY is
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incorrect. This subclass overrides the Django ORM aggregation control to remove the GROUP BY.
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"""
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contains_aggregate = False
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