Reply To: Check for duplicate post based on custom date field

• beefymarketing

• May 3, 2017 at 12:09 am

John, thanks for the new direction. I’m working on it and here is my code. What I thought I would do is create “key” for each event based on the event date converted to a string along with the coach ID. And that is what I’m trying to validate against.

I have code adding that key here..

function my_post_title_updater( $post_id ) {

  if ( get_post_type( $post_id ) == 'event' ) {

    $my_post = array();
    $my_post['ID'] = $post_id;
    $start_time = get_field('start_time', $post_id);
    $curent_user_id = get_current_user_id();
    $coach_key = 'coach';
    $coach_object = get_field_object($coach_key, $post_id);
    $coach = $coach_object['value']->post_title;
    $date_key = strtotime($start_time);
    $event_key = 'event_key';

    $my_post['post_title'] = 'Video Meeting' . ' @ ' . $start_time . ' with ' . $coach;
    update_field( $event_key, $date_key, $post_id );
    
    wp_update_post( $my_post );
  }
}
 
// run after ACF saves the $_POST['fields'] data
add_action('acf/save_post', 'my_post_title_updater', 2);

It works great. But I think I have this firing AFTER the post is saved. In my mind, the new post can’t validate against this key because it’s not entered until after the post is saved.

I don’t know how to add it BEFORE.

And here is my code for the validation.

add_filter('acf/validate_value/key=field_590810149f20f', 'my_acf_validate_value', 10, 4);

function my_acf_validate_value( $valid, $value, $field, $input ){
  
  // bail early if value is already invalid
  if( !$valid ) {
    
    return $valid;
    
  }
  
  $event_key = $value;

  if ( $value == '1491350400') :
    
    $valid = 'This slot is taken, please select a different time';
    
  endif;
  
  
  // return
  return $valid;
  
  

Thanks again for all your help!