How to modify data of custom field which will be stored in custom table - Meta Box

This topic has 1 reply, 2 voices, and was last updated 3 years, 2 months ago by Long Nguyen.

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September 5, 2021 at 3:34 PM #30601
pctsai
Participant
Hi, I want to use hook rwmb_frontend_insert_post_data and rwmb_frontend_update_post_data to modify custom field data in submitted post data. For example, an custom fields, called calorie, whose data type is hidden is stored in a custom table. I tried to use the following code to modify the data of calorie but failed.
```
add_filter( 'rwmb_frontend_insert_post_data', function( $data, $config ) {
    // Make sure you work on the correct form.
    if ( 'diet_form' !== $config['id'] ) {
        return $data;
    }

    $data['calorie'] = '100';
    return $data;
}, 10, 2 );
```
Is there a trick I'm not aware of?

Thanks,
pctsai

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September 6, 2021 at 12:50 PM #30616
Long Nguyen
Moderator
Hi,

You can use the hook rwmb_frontend_after_process to trigger a function update the data in the custom table. Like this:
```
add_action( 'rwmb_frontend_after_process', function( $config, $post_id ) {
    $data = [
        'calorie' => '200',
    ];
    \MetaBox\CustomTable\API::update( $post_id, 'my_custom_table', $data );
}, 10, 2 );
```
Remember to activate the new version of MB Custom Table 2.0.0-rc.2 to use the public API. Please get more details here
https://docs.metabox.io/extensions/mb-custom-table/#api
https://docs.metabox.io/extensions/mb-frontend-submission/#form-actions

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