Reply To: Save sum of repeater filed into another filed

• John Huebner

• April 11, 2019 at 5:45 am

After reading your code more closely, there are several issues that I overlooked before:

function my_acf_update_totalexpenses($post_id) {

  // ****************************************************************
  // $total is getting a sub field.
  // You can't get a sub field if you are not in have_rows() loop
  // there is no loop, so this will return nothing
  // it must be incorrect
  $total = get_sub_field('list');
  
  
  // *****************************************
  // what is this counting? $tasks does not exist yet
  // this will be 0 on PHP 5.6 and cause an error in on PHP 7
  $totaltasks = count($tasks);

  
  $totaltaskpercentage = 0;
  
  
  // add if and add $post_id to have_rows() call
  if (have_rows('list', $post_id)) {
    while (have_rows('list', $post_id)) {
      the_row();
      // ***********************************************************
      // is "expense_" the right sub field name? ending with an _?
      $totaltaskpercentage += intval(get_sub_field('expense_'));
    }  // end while_have_rows
  } // end if have_rows
  $grouptaskpercentage = $totaltaskpercentage / $totaltasks;

  
  // **********************************************************
  // I don't think this is right
  // the above code never modifies the value of $total
  // since $total starts with no value it will have no value here
  $value = $total;
  
  
  update_field('field_5ca90e913bb43', $value, $post_id);
}
add_action('acf/save_post', 'my_acf_update_totalexpenses', 20);