I currently have a custom module which calls a submit custom validation function. I am trying to update a value after the validation is run. Basically, if a value is present, update a field to say "Yes".

function sitefuncs_form_alter(&$form, &$form_state, $form_id){
 
if( $form_id == 'stage_2_node_form') {
   $form['actions']['submit']['#submit'][] = 'sitefuncs_custom_submit';
}
 
} // end hook_form_alter()
 
function sitefuncs_custom_submit($form, &$form_state) {
 
        $banned = array(
        'better cures',
        'better nhs',
        'because it',
        'so what'
        );
 
  if (in_array($form_state['values']['field_stage_two_question_one']['und'][0]['value'], $banned)) { // if a banned word is the value of the input
 
$form_state['values']['field_stage_complete_text']['und'][0]['value'] = "No"; // set the value of the text input to No
 
} else {
 
$form_state['values']['field_stage_complete_text']['und'][0]['value'] = "Yes";
 
$messages = drupal_get_messages('status');
drupal_set_message(t('Your changes have been saved.'));
 
}
 
}

If anyone has any idea why the $form_state isn't updating the fields after I save the node, any help would be great!

Thanks.