chore: consolidate repetitive code

ibis/backends/duckdb/__init__.py

@@ -988,53 +988,49 @@ def _list_query_constructor(self, col: str, where_predicates: list) -> str:
 
         return sg_query
 
-    def _list_tables(
+    def _list_objects(
         self,
-        like: str | None = None,
-        database: tuple[str, str] | str | None = None,
+        like: str | None,
+        database: tuple[str, str] | str | None,
+        object_type: str,
+        is_temp: bool = False,
     ) -> list[str]:
-        """List physical tables."""
+        """Generic method to list objects like tables or views."""
 
         table_loc = self._warn_and_create_table_loc(database)
 
-        catalog = table_loc.catalog or self.current_catalog
+        catalog = table_loc.catalog or ("temp" if is_temp else self.current_catalog)
         database = table_loc.db or self.current_database
 
         col = "table_name"
         where_predicates = [
             C.table_catalog.eq(sge.convert(catalog)),
             C.table_schema.eq(sge.convert(database)),
-            C.table_type.eq("BASE TABLE"),
+            C.table_type.eq(object_type),
         ]
 
         sql = self._list_query_constructor(col, where_predicates)
         out = self.con.execute(sql).fetch_arrow_table()
 
         return self._filter_with_like(out[col].to_pylist(), like)
 
-    def _list_temp_tables(
+    def _list_tables(
         self,
         like: str | None = None,
         database: tuple[str, str] | str | None = None,
     ) -> list[str]:
-        """List temporary tables."""
-
-        table_loc = self._warn_and_create_table_loc(database)
+        """List physical tables."""
 
-        catalog = table_loc.catalog or "temp"
-        database = table_loc.db or self.current_database
+        return self._list_objects(like, database, "BASE TABLE")
 
-        col = "table_name"
-        where_predicates = [
-            C.table_type.eq("LOCAL TEMPORARY"),
-            C.table_catalog.eq(sge.convert(catalog)),
-            C.table_schema.eq(sge.convert(database)),
-        ]
-
-        sql = self._list_query_constructor(col, where_predicates)
-        out = self.con.execute(sql).fetch_arrow_table()
+    def _list_temp_tables(
+        self,
+        like: str | None = None,
+        database: tuple[str, str] | str | None = None,
+    ) -> list[str]:
+        """List temporary tables."""
 
-        return self._filter_with_like(out[col].to_pylist(), like)
+        return self._list_objects(like, database, "LOCAL TEMPORARY", is_temp=True)
 
     def _list_views(
         self,
@@ -1043,46 +1039,16 @@ def _list_views(
     ) -> list[str]:
         """List views."""
 
-        table_loc = self._warn_and_create_table_loc(database)
-
-        catalog = table_loc.catalog or self.current_catalog
-        database = table_loc.db or self.current_database
-
-        col = "table_name"
-        where_predicates = [
-            C.table_catalog.eq(sge.convert(catalog)),
-            C.table_schema.eq(sge.convert(database)),
-            C.table_type.eq("VIEW"),
-        ]
-
-        sql = self._list_query_constructor(col, where_predicates)
-        out = self.con.execute(sql).fetch_arrow_table()
-
-        return self._filter_with_like(out[col].to_pylist(), like)
+        return self._list_objects(like, database, "VIEW")
 
     def _list_temp_views(
         self,
         like: str | None = None,
         database: tuple[str, str] | str | None = None,
     ) -> list[str]:
-        """List views."""
+        """List temporary views."""
 
-        table_loc = self._warn_and_create_table_loc(database)
-
-        catalog = table_loc.catalog or "temp"
-        database = table_loc.db or self.current_database
-
-        col = "table_name"
-        where_predicates = [
-            C.table_catalog.eq(sge.convert(catalog)),
-            C.table_schema.eq(sge.convert(database)),
-            C.table_type.eq("VIEW"),
-        ]
-
-        sql = self._list_query_constructor(col, where_predicates)
-        out = self.con.execute(sql).fetch_arrow_table()
-
-        return self._filter_with_like(out[col].to_pylist(), like)
+        return self._list_objects(like, database, "VIEW", is_temp=True)
 
     @deprecated(as_of="10.0", instead="use the con.tables")
     def list_tables(