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

• beefymarketing

• May 3, 2017 at 2:47 am

Ok, I got the wp_insert_post to work with this:

function my_pre_save_post( $post_id ) {

    // check if this is to be a new post
    if( $post_id != 'new_event' ) {

        return $post_id;

    }

    $start_time = $_POST['acf']['field_58c2cb3c85ad0'];
    $date_key   = strtotime($start_time);
    $coack_key  = 'coach';
    $coach_object = $_POST['acf']['field_59066c838afa6']; // this works

    // Create a new post
    $post = array(
        'post_status'  => 'publish' ,
        'post_type'    => 'event' ,
        'post_title'   => 'Video Meeting',
        'meta_input'    => array(
          'event_key' => $date_key.$coach_object
          )
    );  

    // insert the post
    $post_id = wp_insert_post( $post ); 

    // return the new ID
    return $post_id;

}

add_filter('acf/pre_save_post' , 'my_pre_save_post', 10, 1 );

And it works great. But I’m having trouble with the validation args. I’m not sure how to test the post value against meta input for all the events.

Here is my validation code:

function acf_unique_value_field($valid, $value, $field, $input) {
    if (!$valid || (!isset($_POST['post_ID']) && !isset($_POST['post_id']))) {
      return $valid;
    }
    if (isset($_POST['post_ID'])) {
      $post_id = intval($_POST['post_ID']);
    } else {
      $post_id = intval($_POST['post_id']);
    }
    if (!$post_id) {
      return $valid;
    }
    $post_type = get_post_type($post_id);
    $field_name = $field['name'];
    $args = array(
      'post_type' => $post_type,
      'post_status' => 'publish, draft',
      'post__not_in' => array($post_id),
      'meta_query' => array(
        array(
          'key' => $field_name,
          'value' => $value
        )
      )
    );
    $query = new WP_Query($args);
    if (count($query->posts)){
      return 'This Value is not Unique. Please enter a unique '.$field['label'];
    }
    return true;
  }
  add_filter('acf/validate_value/name=event_key', 'acf_unique_value_field', 1, 4);

Thanks!