update custom post field plugin

lwrkrol
Member
I would like the data in a form field to be put in a hidden field on the same form when a user hits the submit button. I am using the following code in my functions.php to set a relationship between 2 posts which basically is what I want. How should I use this code when I want two form fields to be the same when the form is submitted?
```
do_shortcode("[gravityforms id=2 field_values='ItemID={$post->ID}' ajax=true]");
add_action("gform_after_submission_2", "update_review_data", 10, 2);
 function update_review_data($entry){
 update_post_meta($entry["post_id"], "_wpcf_belongs_winkel_id", $entry[1]);
 }
```
Posted 12 years ago on Monday October 15, 2012 | Permalink
Chris Hajer
Key Master
You could use the gform_pre_submission filter to copy the value from one field to another, after the form is submitted.

http://www.gravityhelp.com/documentation/page/Gform_pre_submission

Your code would look like this:
```
[php]
add_action('gform_pre_submission', 'copy_field_value');
function copy_field_value($form) {
    // copy the value which was submitted in
    // field 10 to hidden field 14
    $_POST['input_14'] = rgpost('input_10');
}
```
However, your request does not mention a custom post field, but your title does. Can you let us know if this accomplishes what you need to do?
Posted 12 years ago on Monday October 15, 2012 | Permalink