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import warnings
from django.contrib.postgres.fields import ArrayField
from django.db.models import Aggregate, BooleanField, JSONField
from django.db.models import StringAgg as _StringAgg
from django.db.models import Value
from django.utils.deprecation import RemovedInDjango70Warning
__all__ = [
"ArrayAgg",
"BitAnd",
"BitOr",
"BitXor",
"BoolAnd",
"BoolOr",
"JSONBAgg",
"StringAgg", # RemovedInDjango70Warning.
]
class ArrayAgg(Aggregate):
function = "ARRAY_AGG"
allow_distinct = True
allow_order_by = True
@property
def output_field(self):
return ArrayField(self.source_expressions[0].output_field)
class BitAnd(Aggregate):
function = "BIT_AND"
class BitOr(Aggregate):
function = "BIT_OR"
class BitXor(Aggregate):
function = "BIT_XOR"
class BoolAnd(Aggregate):
function = "BOOL_AND"
output_field = BooleanField()
class BoolOr(Aggregate):
function = "BOOL_OR"
output_field = BooleanField()
class JSONBAgg(Aggregate):
function = "JSONB_AGG"
allow_distinct = True
allow_order_by = True
output_field = JSONField()
# RemovedInDjango70Warning: When the deprecation ends, remove completely.
class StringAgg(_StringAgg):
def __init__(self, expression, delimiter, **extra):
if isinstance(delimiter, str):
warnings.warn(
"delimiter: str will be resolved as a field reference instead "
"of a string literal on Django 7.0. Pass "
f"`delimiter=Value({delimiter!r})` to preserve the previous behavior.",
category=RemovedInDjango70Warning,
stacklevel=2,
)
delimiter = Value(delimiter)
warnings.warn(
"The PostgreSQL specific StringAgg function is deprecated. Use "
"django.db.models.aggregates.StringAgg instead.",
category=RemovedInDjango70Warning,
stacklevel=2,
)
super().__init__(expression, delimiter, **extra)
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