Fix types for UniqueConstraint instantiation (#1880)

Author: flaeppe

django-stubs/db/models/constraints.pyi

@@ -41,7 +41,7 @@ class UniqueConstraint(BaseConstraint):
         self,
         *expressions: str | BaseExpression | Combinable,
         fields: None = ...,
-        name: str,
+        name: str | None = ...,
         condition: Q | None = ...,
         deferrable: Deferrable | None = ...,
         include: Sequence[str] | None = ...,
@@ -53,10 +53,12 @@ class UniqueConstraint(BaseConstraint):
         self,
         *,
         fields: Sequence[str],
-        name: str,
+        name: str | None = ...,
         condition: Q | None = ...,
         deferrable: Deferrable | None = ...,
         include: Sequence[str] | None = ...,
         opclasses: Sequence[Any] = ...,
+        nulls_distinct: bool | None = ...,
+        violation_error_code: str | None = ...,
         violation_error_message: _StrOrPromise | None = ...,
     ) -> None: ...

scripts/stubtest/allowlist_todo.txt

@@ -455,7 +455,6 @@ django.contrib.gis.db.models.TimeField.formfield
 django.contrib.gis.db.models.URLField.formfield
 django.contrib.gis.db.models.UUIDField.class_lookups
 django.contrib.gis.db.models.UUIDField.formfield
-django.contrib.gis.db.models.UniqueConstraint.__init__
 django.contrib.gis.db.models.UniqueConstraint.contains_expressions
 django.contrib.gis.db.models.UniqueConstraint.validate
 django.contrib.gis.db.models.Value.empty_result_set_value
@@ -1033,7 +1032,6 @@ django.db.models.TimeField.formfield
 django.db.models.URLField.formfield
 django.db.models.UUIDField.class_lookups
 django.db.models.UUIDField.formfield
-django.db.models.UniqueConstraint.__init__
 django.db.models.UniqueConstraint.contains_expressions
 django.db.models.UniqueConstraint.validate
 django.db.models.Value.empty_result_set_value
@@ -1066,7 +1064,6 @@ django.db.models.constraints.BaseConstraint.contains_expressions
 django.db.models.constraints.BaseConstraint.get_violation_error_message
 django.db.models.constraints.BaseConstraint.validate
 django.db.models.constraints.CheckConstraint.validate
-django.db.models.constraints.UniqueConstraint.__init__
 django.db.models.constraints.UniqueConstraint.contains_expressions
 django.db.models.constraints.UniqueConstraint.validate
 django.db.models.expressions.BaseExpression.empty_result_set_value