Form validation error message issues

[eluser]RalphLeMouf[/eluser]
I'm really close but the errors I tried to add via

Code:

echo validation_error();

is not correct. So should I make that from scratch or is there a code-igniter shortcut for that?

This is what I ended up with:

Code:

function validate_credentials_login()
  {
    $this->load->library('session');
    $this->load->helper(array('form','url'));
    $this->load->model('user_model', 'um');
    $this->load->library('encrypt');
    $this->load->library('form_validation');


    $this->form_validation->set_rules('email_login', 'Email', 'trim|required|valid_email');
    $this->form_validation->set_rules('password_login', 'Password', 'trim|required');


    if ( $this->form_validation->run() === TRUE )
    {  
      $user = $this->um->validate_home_login(array('email' => $this->input->post('email_login')));

      if ( $user )
      {
       if ( $user->password == $this->encrypt->sha1( $user->salt .   $this->encrypt->sha1($this->input->post('password_login'))) && $user->email == $this->input->post('email_login') )
       {
         $this->session->set_userdata(array('email' => $this->input->post('email_login')));
         redirect('account/edit');
       }
       else
       {
         echo validation_error();
       }
      }
      else
      {
       echo validation_error();
      }
    }