after_save_post on settings page - values not updated

This topic has 5 replies, 2 voices, and was last updated 2 months, 1 week ago by Peter.

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October 5, 2024 at 3:43 AM #46608
FizzPop Media
Participant
I have a settings page that uses a field group called fundraiser-fields.
Here is a [screenshot](https://tinyurl.com/2y9aasxq)

I followed the example titled "Combining values of 2 fields into another one:" given here: https://docs.metabox.io/actions/rwmb-after-save-post/

I updated the code based on my field group id and variable names but nothing happens.
```
add_action( 'rwmb_fundraiser-fields_after_save_post', function( $object_id ) {
    if ( isset( $_POST['campaign_name'] ) && isset( $_POST['campaign_description'] ) ) {
        $value = $_POST['campaign_name'] . $_POST['campaign_description'];
        update_post_meta( $object_id, 'text_test', $value );
    }
} );
```
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October 6, 2024 at 10:20 PM #46615

Peter
Moderator

Hello,

Obviously, the settings page isn't a post, so the function update_post_meta() doesn't work to update the settings page. You can use the function rwmb_set_meta() or update_option() to update fields on a settings page.

Please follow the documentation
https://docs.metabox.io/functions/rwmb-set-meta/
https://developer.wordpress.org/reference/functions/update_option/
https://docs.metabox.io/extensions/mb-settings-page/

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October 7, 2024 at 7:07 PM #46618

FizzPop Media
Participant

@Peter
According to your documentation, rwmb-after-save-post works for settings. Is that incorrect?
https://docs.metabox.io/actions/rwmb-after-save-post/

Although the action name is rwmb_after_save_post, it applies to all object types, including term, user, or setting. We keep the name for historical reasons.

My ultimate goal is to calculate a value based on two numbers entered as values into settings:
Inputs: Goal Amount and Amount Raised
Calculate: Goal Percentage as Amount Raised / `Goal Amount
This is why I am using the after-save-post function
I also tried before-save-post but it also didn't work.

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October 8, 2024 at 11:13 PM #46629

Peter
Moderator

Hello,

It isn't an issue with the action hook rwmb_after_save_post. The issue lies in the function update_post_meta() in the callback that you are using. The settings page doesn't have an object ID, so apparently, the function update_post_meta() won't work to update a post meta for a post.

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October 8, 2024 at 11:17 PM #46630

FizzPop Media
Participant

I am confused.
Is the documentation incorrect?

How do I solve for this?

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October 9, 2024 at 9:50 PM #46644
Peter
Moderator
Is the documentation incorrect?

The documentation is correct. But the function update_post_meta() will update the post meta, not the settings page value. Here is an example:
```
add_action( 'rwmb_fundraiser-fields_after_save_post', function( $object_id ) {
    update_option(...);
} );
```
If you cannot complete the task, we offer a customization service. Please contact us here for more details https://metabox.io/contact/

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