cf-two-gallery-fields.php

<?php
/*
 *  Transform data from file field and update gallery custom field for first listing
 *
 */
add_action( 'caldera_forms_submit_complete', function( $form, $referrer, $process_id, $entryid ) {
    if( 'CF5a96a2f82ed78' === $form[ 'ID' ] ) { 
      //change your field ID here
      $imgs = Caldera_Forms::get_field_data( 'fld_1166289', $form );
      $attachments_array = array();
      if( !empty($imgs) ) {
          foreach( $imgs as $img_url ){
              $img_id = get_attachment_id( $img_url );
              $attachments_array[] = $img_id;
          }
      }
      //Change the field ID of the hidden field using {post_type:ID} magic tag as value
      $pid = Caldera_Forms::get_field_data( 'fld_726404', $form );
      $post_id = Caldera_Forms::do_magic_tags( $pid, $entryid );

      //Update the ACF custom field ID
      if( !empty( $attachments_array ) && !empty( $post_id )) { 
        update_field( 'field_5a847474875fd', $attachments_array , $post_id );
      }
     }else if( 'CF5a85c35a996a2' === $form[ 'ID' ] ) {
       
        //change your field ID here
        $imgs = Caldera_Forms::get_field_data( 'fld_1166289', $form );
        $attachments_array = array();
        if( !empty($imgs) ) {
            foreach( $imgs as $img_url ){
                $img_id = get_attachment_id( $img_url );
                $attachments_array[] = $img_id;
            }
        }
        //Change the field ID of the hidden field using {post_type:ID} magic tag as value
        $pid = Caldera_Forms::get_field_data( 'fld_726404', $form );
        $post_id = Caldera_Forms::do_magic_tags( $pid, $entryid );

        //Update the ACF custom field ID
        if( !empty( $attachments_array ) && !empty( $post_id )) { 
          update_field( 'field_5a847474875fd', $attachments_array , $post_id );
        }
    }

}, 10, 4 );