kohana在unsuccesfull save之后更改url

Question

I have thread show page (thread/show) with reply form on the bottom of the page. Replay form posts to post/add action. When reply is successfully added i can redirect everywhere. The problem is when there are some errors for example reply form is empty and post/add is called. I need to go to thread/show instead (with 'errors' array) and show errors there, because i have reply form there.

try {$forumPost->save();
            } catch (ORM_Validation_Exception $e) {
                $errors = $e->errors('');
               //I need change url here to thread/show
            }

Is it possible?

Answer 1

You can store the errors in the Session array. So they'll persist across multiple requests

try {
     $forumPost->save();
} catch (ORM_Validation_Exception $e) {
     $errors = $e->errors('');

     Session::instance()->set('thread_add_errors', $errors);
     HTTP::redirect('thread/show');
}

Then in the thread show view

<?php if($errors = Session::instance()->get('thread_add_errors')): ?>
      // Show errors

      // Don't forget to delete the error :)
      <?php Session::instance()->delete('thread_add_errors'); ?>
<?php endif; ?>