fix for code analys

tortoise/contrib/postgres/indexes.py

@@ -52,5 +52,9 @@ class SpGistIndex(PostgreSQLIndex):
 
 
 class UniqueIndex(UniqueIndexABC[Literal["distinct", "not distinct"]]):
-    def nulls(self, distinct_status: Literal["distinct", "not distinct"]):
+    @staticmethod
+    def _nulls(distinct_status: Literal["distinct", "not distinct"]):
         return f"nulls {distinct_status}"
+
+    def nulls(self, distinct_status: Literal["distinct", "not distinct"]):
+        return self._nulls(distinct_status)

tortoise/contrib/sqlite/indexes.py

@@ -3,12 +3,17 @@
 
 
 class UniqueIndex(UniqueIndexABC[Sequence[str]]):
-    def nulls(self, null_fields: Sequence[str]):
+
+    @staticmethod
+    def get_conditions(fields: Sequence[str]):
         conditions = tuple(
             map(
                 lambda field_name: f"{field_name} is not null",
-                null_fields or [],
+                fields or [],
             )
         )
-        result = " and ".join(conditions)
+        return " and ".join(conditions)
+
+    def nulls(self, null_fields: Sequence[str]):
+        result = self.get_conditions(null_fields)
         return f"where {result}" if result else result

tortoise/indexes.py

@@ -100,4 +100,5 @@ def __init__(
             self.extra += f" {self.nulls(nulls)}"
 
     @abc.abstractmethod
-    def nulls(cls, distinct: T): ...
+    def nulls(self, distinct: T):
+        raise NotImplementedError(self, distinct, 'no handler found')