README update

app/bot/dialogs/flows/events/dialogs.py

@@ -1,16 +1,16 @@
 from aiogram_dialog import Dialog, Window
-from aiogram_dialog.widgets.kbd import Back, Cancel, Column, Select
-from aiogram_dialog.widgets.text import Const, Format, Jinja
+from aiogram_dialog.widgets.kbd import Back, Button, Cancel, Column, Select
+from aiogram_dialog.widgets.text import Case, Const, Format, Jinja
 
 from app.bot.dialogs.templates import event_template
 
 from .getters import event_getter, events_list_getter
-from .handlers import on_event_selected
+from .handlers import change_registration, on_event_selected
 from .states import EventsSG
 
 events_dialog = Dialog(
     Window(
-        Const("События"),
+        Const("Мероприятия"),
         Column(
             Cancel(Const("Назад")),
             Select(
@@ -26,6 +26,13 @@ events_dialog = Dialog(
     ),
     Window(
         Jinja(event_template),
+        Button(
+            Case(
+                [Const("зарегистрироваться"), Const("отменить регистрацию")],
+                selector="is_registered_to_event",
+            ),
+            on_click=change_registration,
+        ),
         Back(Const("Назад")),
         getter=event_getter,
         parse_mode="HTML",