Coverage for utilities/query_functions.py: 100%

1from django.contrib.postgres.aggregates import JSONBAgg 

2from django.db.models import Func 

3 

4__all__ = ( 

5 'CollateAsChar', 

6 'EmptyGroupByJSONBAgg', 

7) 

8 

9 

10class CollateAsChar(Func): 

11 """ 

12 Disregard localization by collating a field as a plain character string. Helpful for ensuring predictable ordering. 

13 """ 

14 function = 'C' 

15 template = '(%(expressions)s) COLLATE "%(function)s"' 

16 

17 

18class EmptyGroupByJSONBAgg(JSONBAgg): 

19 """ 

20 JSONBAgg is a builtin aggregation function which means it includes the use of a GROUP BY clause. 

21 When used as an annotation for collecting config context data objects, the GROUP BY is 

22 incorrect. This subclass overrides the Django ORM aggregation control to remove the GROUP BY. 

23 """ 

24 contains_aggregate = False