I have a form that updates a product's information using a form with use:enhance
and actions defined in page.server.ts
- However, whenever I submit the form, use:enhance
resets the form elements and they all become blank, which is unexpected as the value for these elements is specified by $page.data.product
, and the docs state that use:enhance
runs invalidateAll
.
Nonetheless, is there a way to stop this reset from occurring within the use:enhance
function?
CodePudding user response:
If you return a function from the use:enhance
action, that function will be called when you get a response from the form submit. This function in turn gets an update
function which will emulate the browser-native behavior.
If you don't call update
the form will not be reset:
<script>
import { enhance } from '$app/forms'
</script>
<form
method="POST"
use:enhance={({ form, data, action, cancel }) => {
return async ({ result, update }) => {};
}}
>
<input type="text" name="name" />
<button>Submit</button>
</form>
You could then use applyAction
for more fine-grained customization.