Mutate data in HasManyRepeater before saving

[fauzie811]

How to mutate data in HasManyRepeater before saving? Using mutateFormDataBeforeSave does not work.

[danharrin]

How would you like to mutate it?

[fauzie811]

    protected function mutateFormDataBeforeSave(array $data): array
    {
        // Original data
        // [
        //     ... other fields
        //     'items' => [
        //         [
        //             ... other fields
        //             'some_field' => 'original_value_1',
        //         ],
        //         [
        //             ... other fields
        //             'some_field' => 'original_value_2',
        //         ],
        //         ...
        //     ],
        // ]

        // 'items' field is from HasManyRepeater component

        foreach ($data['items'] as $idx => $item) {
            $data['items'][$idx]['some_field'] = 'new_value';
        }

        return $data;
    }

This doesn't work.

[danharrin]

On the some_field component, you can specify a dehydrateStateUsing() callback that can mutate the state for you:

->dehydrateStateUsing(fn ($state) => 'new_value')

[fauzie811]

Ah, I missed that when reading the docs. Thanks.