Update content(date) in FIELD_B when FIELD_A is saved with changes

This topic has 5 replies, 2 voices, and was last updated 7 months, 2 weeks ago by Long Nguyen.

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November 18, 2021 at 9:09 AM #32006

Kyle B.
Participant

Basically, I am trying to update the date in "Tax Rates Updated" any time the "Tax Rates" field is changed and saved. I have managed to catch when the Tax Rates field has been changed but I do not know how to change the date inside of the "Tax Rates Updated" field of the post.

The post: https://i.imgur.com/THKXVoo.png

The code(so far): https://i.imgur.com/uW4P15V.png
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November 18, 2021 at 11:06 AM #32008

Long Nguyen
Moderator

Hi Kyle,

You can use the helper function rwmb_set_meta() to set the value for a field. Or use the WordPress function update_post_meta(). Please read more on the documentation
https://docs.metabox.io/rwmb-set-meta/
https://developer.wordpress.org/reference/functions/update_post_meta/

November 18, 2021 at 8:11 PM #32016
Kyle B.
Participant
Not sure what I am missing here, the field is not updating.
```
<?php
add_action( 'rwmb_district_tax_rate_after_save_field', function ( $null, $field, $post_id, $old, $new ) {
    rwmb_set_meta( $post_id, 'district_proposed_rate', $new );
}, 10, 5 );
```
View post on imgur.com
November 18, 2021 at 10:19 PM #32024
Long Nguyen
Moderator
Hi,

Please pass the parameters to the helper function in the correct order.
```
add_action( 'rwmb_district_tax_rate_after_save_field', function ( $null, $field, $new, $old, $object_id ) {
    rwmb_set_meta( $object_id, 'district_proposed_rate', $new );
}, 10, 5 );
```
and the field district_proposed_rate should be a text field.
November 19, 2021 at 12:02 AM #32026

Kyle B.
Participant

It is not updating other fields. It only works if I am checking FIELD_A and updating FIELD_A. If I check FIELD_A and try to update FIELD_B it does not work. Here is a video: https://www.loom.com/share/dda428cc81074d5fa225a6ac98063230

November 19, 2021 at 12:26 PM #32037

Long Nguyen
Moderator

Hi,

I got the issue. It does not work on your site because the field text_to_input is registered and saved first. If you want to update the field text_to_update, please drag and drop it above the field text_to_input. Like this https://share.getcloudapp.com/d5u6JvQz
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