# È possibile iniettare parametri dal template a un'azione del widget?

**URL:** <https://meta.discourse.org/t/can-parameters-be-injected-from-the-template-to-a-widget-action/155275>\
**Category:** Development\
**Created:** [18 Giugno 2020, 9:09pm UTC](https://meta.discourse.org/t/can-parameters-be-injected-from-the-template-to-a-widget-action/155275 "2020-06-18T21:09:39Z")\
**Posts on this page:** 1\
**Showing post:** 2

<div class="post-metadata">

**Author:** ![oca](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/oca/32/156060_2.png) [@oca](https://meta.discourse.org/u/oca)\
**Post date:** [22 Giugno 2020, 5:11pm UTC](https://meta.discourse.org/t/can-parameters-be-injected-from-the-template-to-a-widget-action/155275/2 "2020-06-22T17:11:44Z")

</div>

Non sono riuscito a trovare nulla riguardo al problema generale, ma ho risolto il mio con questo hack:

```js
{{#each categories as |c|}}
    {{category-notifications-button
        ...
        onChange=(action (mut c.notification_level))
    }}
{{/each}}

```

Il che significa, immagino, che voglio mutare il campo `c.notification_level` con il valore restituito dal pulsante.

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