Get items list from dialog manager or state

[tishka17]

Get items list from dialog manager or state

[Tishka17]

As I understood:

1. You need to store items somewhere. It coud be database, FsmContext or manager.context (as you already did)
2. You need to create window getter function. It will read your context or wherever your store your items. Here is an example: https://aiogram-dialog.readthedocs.io/en/latest/widgets.html#select
3. To use items from getter should should just set items="Item" in your select.
   4 Your add_item function does not add anything. It replaces saved item in dialog context. May be it is the problem
4. If you need to do some separate work with separate data, you should start new dialog. For example, in subdialog.py second dialog only inputs the name and does not know how it will be used. In your case should either create 2 dialogs or use manager.switch_to() instead of starting.

Also, welcome to https://t.me/aiogram_dialog

[yevhen-kalyna]

Thanks for your response @Tishka17 , your recommendation helped, but not fully resolve the issue.

Look like I'm made storing of items in context:

async def get_item_list(dialog_manager: DialogManager, **kwargs):
    items = dialog_manager.current_context().dialog_data.get('items', [])
    if dialog_manager.current_context().dialog_data.get('item', None):
        item = dialog_manager.current_context().dialog_data['item']
        if len(items) < 5:
            items.append(item)
        else:
            pass
            # Notify user that he already have 5 items, and he need to remove something to add new one
    return {
        "items": items,
    }
...
dial_items_manager = Dialog(
    Window(
        'Your item list',
        Select(
            Format("{item}"),
            items="items",
            item_id_getter=operator.itemgetter(1),
            id="items",
            on_click=show_item,
        ),
        Row(
            Button(
                Const('Add item to list'),
                id="add_item",
                on_click=add_item_request,
            )
        ),
        Cancel(),
        state=ManageItemsSG.show_items,
        getter=get_item_list,
    ),
)

But look like something wrong with adding new items to the list of items, because when I adding some item, var 'item' and 'items' in get_item_list() are empty.
As you can see in My code: spoiler upper, I'm using add_item_request() to change Window to

    Window(
        Const("Write item which need to add"),
        MessageInput(add_item),
        state=ManageItemsSG.new_item,
        getter=get_item_list,
    ),

And when I calling add_item(), it registry my m.text, but with dialog_manager.current_context().dialog_data["item"] item not storing as I see. What the better workaround to handle items adding to the global list of items?
It how this look like, item list are empty

[Tishka17]

I do not know, why your getter is modifying context data. It should only read it.

If you want add something to context, do it on your input/button click

[yevhen-kalyna]

I used switch_to in my add_item() and its helped.

async def add_item(m: Message, dialog: Dialog, dialog_manager: DialogManager):
    dialog_manager.current_context().dialog_data["item"] = m.text
    await m.answer(f"Your item '{m.text}' added")
    await dialog_manager.switch_to(ManageItemsSG.show_items)

The issue can be closed.