def event_alteration_start(update, context):
"""Starts the event alteration process."""
query = update.callback_query
query.answer()
altering_type = query.data.split("_")[-1:][0]
user_id = query.from_user['id']
events = DatabaseController.load_user_events(user_id)
user_language = DatabaseController.load_selected_language(user_id)
message = None
if altering_type == 'change':
message = receive_translation("event_alteration_change_header",
user_language)
elif altering_type == 'delete':
message = receive_translation("event_alteration_delete_header",
user_language)
if UserEventAlterationMachine.receive_state_of_user(
user_id
) == 0 or UserEventAlterationMachine.receive_state_of_user(
user_id) == -1:
bot = BotControl.get_bot()
bot.send_message(
user_id,
text=message,
parse_mode=ParseMode.MARKDOWN_V2,
reply_markup=Event.event_keyboard_alteration_action(
events, user_language, mode=altering_type))
