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Document show_menu data entry flow (#1247)

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* Document show_menu data entry flow

* Update docs/data_entry_flow_index.md

Co-authored-by: Allen Porter <allen@thebends.org>

* Update docs/data_entry_flow_index.md

Co-authored-by: Allen Porter <allen@thebends.org>
Co-authored-by: Joakim Sørensen <joasoe@gmail.com>
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docs/data_entry_flow_index.md
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@ -343,9 +343,48 @@ class TestFlow(config_entries.ConfigFlow, domain=DOMAIN):
return self.async_create_entry(title="Some title", data={})
```
### Show Menu
This will show a navigation menu to the user to easily pick the next step. The menu labels can be hardcoded by specifying a dictionary of {`step_id`: `label`} or translated via `strings.json` when specifying a list.
```python
class ExampleConfigFlow(data_entry_flow.FlowHandler):
async def async_step_user(self, user_input=None):
return self.async_show_menu(
step_id="user",
menu_options=["discovery", "manual"],
description_placeholders={
"model": "Example model",
}
)
# Example showing the other approach
return self.async_show_menu(
step_id="user",
menu_options={
"option_1": "Option 1",
"option_2": "Option 2",
}
)
```
```json
{
"config": {
"step": {
"user": {
"menu_options": {
"discovery": "Discovery",
"manual": "Manual ({model})",
}
}
}
}
}
```
## Translations
Data entry flows depend on translations for showing the text in the forms. It depends on the parent of a data entry flow manager where this is stored. For config and option flows this is in `strings.json` under `config` and `option`.
Data entry flows depend on translations for showing the text in the forms. It depends on the parent of a data entry flow manager where this is stored. For config and option flows this is in `strings.json` under `config` and `option`.
For a more detailed explanation of `strings.json` see to the [backend translation](/docs/internationalization/core) page.