fixed double cast Radio, added reset method

src/aiogram_dialog/widgets/kbd/select.py

@@ -182,7 +182,7 @@ async def _process_click(
             await self.on_item_click.process_event(
                 callback, select, manager, self.type_factory(item_id),
             )
-        await self._on_click(callback, select, manager, str(item_id))
+        await self._on_click(callback, select, manager, item_id)
 
     @abstractmethod
     async def _on_click(
@@ -194,6 +194,21 @@ async def _on_click(
     ):
         raise NotImplementedError
 
+    async def _process_item_callback(
+            self,
+            callback: CallbackQuery,
+            data: str,
+            dialog: DialogProtocol,
+            manager: DialogManager,
+    ) -> bool:
+        await self.on_click.process_event(
+            callback,
+            self.managed(manager),
+            manager,
+            data,
+        )
+        return True
+
 
 class Radio(StatefulSelect[T], Generic[T]):
     def __init__(
@@ -237,9 +252,9 @@ def _get_checked(self, manager: DialogManager) -> Optional[str]:
         return self.get_widget_data(manager, None)
 
     async def set_checked(
-            self, event: ChatEvent, item_id: Optional[T],
+            self, event: ChatEvent, item_id: T,
             manager: DialogManager,
-    ):
+    ) -> None:
         checked = self._get_checked(manager)
         item_id_str = str(item_id)
         self.set_widget_data(manager, item_id_str)
@@ -282,7 +297,7 @@ def get_checked(self) -> Optional[T]:
         """Get an id of selected item."""
         return self.widget.get_checked(self.manager)
 
-    async def set_checked(self, item_id: T):
+    async def set_checked(self, item_id: T) -> None:
         """Get set which item is selected."""
         return await self.widget.set_checked(
             self.manager.event, item_id, self.manager,

tests/widgets/kbd/test_radio.py

@@ -1,4 +1,5 @@
 import operator
+from datetime import datetime
 from unittest.mock import AsyncMock
 
 import pytest
@@ -26,6 +27,39 @@ async def test_check_radio(mock_manager) -> None:
     assert radio.is_checked("2", mock_manager)
 
 
+@pytest.mark.asyncio
+async def test_validation_radio(mock_manager) -> None:
+    def validate_datetime(text: str) -> datetime:
+        return datetime.fromtimestamp(int(text))
+
+    radio = Radio(
+        Format("🔘 {item[1]}"),
+        Format("⚪️ {item[1]}"),
+        id="datetime",
+        item_id_getter=operator.itemgetter(0),
+        type_factory=validate_datetime,
+        items=[
+            (int(datetime(2024, 5, 26).timestamp()), datetime(2024, 5, 26)),
+            (int(datetime(2024, 5, 30).timestamp()), datetime(2024, 5, 30)),
+            (int(datetime(2022, 3, 11).timestamp()), datetime(2022, 3, 11)),
+        ],
+    )
+
+    current_checked_date = radio.get_checked(mock_manager)
+    assert current_checked_date is None
+
+    await radio.set_checked(
+        TelegramObject(), int(datetime(2024, 5, 30).timestamp()),
+        mock_manager
+    )
+
+    assert radio.is_checked(int(datetime(2024, 5, 30).timestamp()),
+                            mock_manager)
+
+    current_checked_date = radio.get_checked(mock_manager)
+    assert current_checked_date == datetime(2024, 5, 30)
+
+
 @pytest.mark.asyncio
 async def test_on_state_changed_radio(mock_manager) -> None:
     on_state_changed = AsyncMock()