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Fixed #35778 -- Used JSON_OBJECT database function on PostgreSQL 16+ with server-side bindings.

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John Parton 2024-09-26 10:52:12 -05:00 committed by Sarah Boyce
parent 18b3a9dd39
commit 78c9a27031
1 changed files with 23 additions and 18 deletions
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41
django/db/models/functions/comparison.py
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@ -162,7 +162,8 @@ class JSONObject(Func):
def join(self, args): def join(self, args):
pairs = zip(args[::2], args[1::2], strict=True) pairs = zip(args[::2], args[1::2], strict=True)
return ", ".join([" VALUE ".join(pair) for pair in pairs]) # Wrap 'key' in parentheses in case of postgres cast :: syntax.
return ", ".join([f"({key}) VALUE {value}" for key, value in pairs])
def as_native(self, compiler, connection, *, returning, **extra_context): def as_native(self, compiler, connection, *, returning, **extra_context):
return self.as_sql( return self.as_sql(
@ -174,24 +175,28 @@ class JSONObject(Func):
) )
def as_postgresql(self, compiler, connection, **extra_context): def as_postgresql(self, compiler, connection, **extra_context):
if ( # Casting keys to text is only required when using JSONB_BUILD_OBJECT
not connection.features.is_postgresql_16 # or when using JSON_OBJECT on PostgreSQL 16+ with server-side bindings.
or connection.features.uses_server_side_binding # This is done in all cases for consistency.
): copy = self.copy()
copy = self.copy() copy.set_source_expressions(
copy.set_source_expressions( [
[ Cast(expression, TextField()) if index % 2 == 0 else expression
Cast(expression, TextField()) if index % 2 == 0 else expression for index, expression in enumerate(copy.get_source_expressions())
for index, expression in enumerate(copy.get_source_expressions()) ]
] )
if connection.features.is_postgresql_16:
return copy.as_native(
compiler, connection, returning="JSONB", **extra_context
) )
return super(JSONObject, copy).as_sql(
compiler, return super(JSONObject, copy).as_sql(
connection, compiler,
function="JSONB_BUILD_OBJECT", connection,
**extra_context, function="JSONB_BUILD_OBJECT",
) **extra_context,
return self.as_native(compiler, connection, returning="JSONB", **extra_context) )
def as_oracle(self, compiler, connection, **extra_context): def as_oracle(self, compiler, connection, **extra_context):
return self.as_native(compiler, connection, returning="CLOB", **extra_context) return self.as_native(compiler, connection, returning="CLOB", **extra_context)