Case#
To select one of the texts depending on some condition you should use Case.
The condition can be either a data key, magic-filter or a function. The result of selector is check against provided texts dictionary.
You can use ... (Ellipsis object) as a key to provide default text which is used when no suitable options found.
Code example:
from typing import Dict
from aiogram_dialog import DialogManager
from aiogram_dialog.widgets.text import Case, Const, Format
# let's assume this is our window data getter
async def get_data(**kwargs):
return {"color": "red", "number": 42}
# This will produce text `Square`
text = Case(
{
"red": Const("Square"),
"green": Const("Unicorn"),
"blue": Const("Moon"),
...: Const("Unknown creature"),
},
selector="color",
)
# This one will produce text `42 is even!`
def parity_selector(data: Dict, case: Case, manager: DialogManager):
return data["number"] % 2
text2 = Case(
{
0: Format("{number} is even!"),
1: Const("It is Odd"),
},
selector=parity_selector,
)
- class aiogram_dialog.widgets.text.Case(texts, selector, when=None)#
- Parameters: