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Simplified handling of expressions in StatAggregate.

This commit is contained in:
Sergey Fedoseev 2017-03-23 22:05:59 +05:00 committed by Tim Graham
parent 001cf53280
commit b00ee5471d
1 changed files with 1 additions and 10 deletions
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11
django/contrib/postgres/aggregates/statistics.py
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@ -11,16 +11,7 @@ class StatAggregate(Aggregate):
def __init__(self, y, x, output_field=FloatField()):
if not x or not y:
raise ValueError('Both y and x must be provided.')
super().__init__(y=y, x=x, output_field=output_field)
self.x = x
self.y = y
self.source_expressions = self._parse_expressions(self.y, self.x)
def get_source_expressions(self):
return self.y, self.x
def set_source_expressions(self, exprs):
self.y, self.x = exprs
super().__init__(y, x, output_field=output_field)
def resolve_expression(self, query=None, allow_joins=True, reuse=None, summarize=False, for_save=False):
return super().resolve_expression(query, allow_joins, reuse, summarize)