start-pack

myenv/lib/python3.12/site-packages/django/contrib/postgres/aggregates/mixins.py

@@ -0,0 +1,62 @@
+import warnings
+
+from django.core.exceptions import FullResultSet
+from django.db.models.expressions import OrderByList
+from django.utils.deprecation import RemovedInDjango61Warning
+
+
+class OrderableAggMixin:
+    # RemovedInDjango61Warning: When the deprecation ends, replace with:
+    # def __init__(self, *expressions, order_by=(), **extra):
+    def __init__(self, *expressions, ordering=(), order_by=(), **extra):
+        # RemovedInDjango61Warning.
+        if ordering:
+            warnings.warn(
+                "The ordering argument is deprecated. Use order_by instead.",
+                category=RemovedInDjango61Warning,
+                stacklevel=2,
+            )
+            if order_by:
+                raise TypeError("Cannot specify both order_by and ordering.")
+            order_by = ordering
+        if not order_by:
+            self.order_by = None
+        elif isinstance(order_by, (list, tuple)):
+            self.order_by = OrderByList(*order_by)
+        else:
+            self.order_by = OrderByList(order_by)
+        super().__init__(*expressions, **extra)
+
+    def resolve_expression(self, *args, **kwargs):
+        if self.order_by is not None:
+            self.order_by = self.order_by.resolve_expression(*args, **kwargs)
+        return super().resolve_expression(*args, **kwargs)
+
+    def get_source_expressions(self):
+        return super().get_source_expressions() + [self.order_by]
+
+    def set_source_expressions(self, exprs):
+        *exprs, self.order_by = exprs
+        return super().set_source_expressions(exprs)
+
+    def as_sql(self, compiler, connection):
+        *source_exprs, filtering_expr, order_by_expr = self.get_source_expressions()
+
+        order_by_sql = ""
+        order_by_params = []
+        if order_by_expr is not None:
+            order_by_sql, order_by_params = compiler.compile(order_by_expr)
+
+        filter_params = []
+        if filtering_expr is not None:
+            try:
+                _, filter_params = compiler.compile(filtering_expr)
+            except FullResultSet:
+                pass
+
+        source_params = []
+        for source_expr in source_exprs:
+            source_params += compiler.compile(source_expr)[1]
+
+        sql, _ = super().as_sql(compiler, connection, order_by=order_by_sql)
+        return sql, (*source_params, *order_by_params, *filter_params)