Skip mail sending within wpcf7_before_send_mail hook

Hi,

With this hook I can change the value of an advanced custom field. It works.

The only thing that doesn′t work: It does not prevent the mail from being sent if $new_value is not bigger than 0.

add_action("wpcf7_before_send_mail", "change_contingent_handler");

function change_contingent_handler($contact_form) {
$submission = WPCF7_Submission::get_instance();
if ($submission) {
  $form_data = $submission->get_posted_data();

  if ($form_data['kont'] != "" ) {
    $kont = $form_data['kont'];        
    $reservierungen = 1;                      
    $new_value = $kont - $reservierungen;

      if (isset($form_data['postid'])) {
          $post_id = $form_data['postid'];
      }       

    if ( $new_value > 0 ) { 
      if (function_exists('update_field')) {            
        update_field($field_key, $new_value, $post_id);                   
      } else {
          // Error: ACF not available.            
      }

   } else {
     // Clear the email content to prevent sending         
     add_filter('wpcf7_skip_mail','__return_true');
   }        
  }
}  
}

I cannot find the error. The form will be submitted resp. the email will be sent, even if $new_value is 0 for example.

I already tried $submission->skip_mail = true; as well, didn′t work.

The form submitting process should be interrupted, if $new_value is not bigger than 0.

Additionally there should be a message (eg. “pls. change the number of participants to a max. of xxx”).

And after correcting the value, the user should be able to submit the form once more.

Best regards and thank you in advance

Markus

• This topic was modified 1 month, 2 weeks ago by webmark487.
• This topic was modified 1 month, 2 weeks ago by webmark487.
• This topic was modified 1 month, 2 weeks ago by webmark487.
• This topic was modified 1 month, 2 weeks ago by webmark487.