How to pass multiple values from view->controller->model

[eluser]johnmiller[/eluser]
i have changed my model like this

Code:

function search_students($fname)
    {
        $search_details = $this->db->query("SELECT * from student WHERE first_name = '$fname'");
        return $search_details->result();
    }

i still get the error..

how to load the validation library???

the error i get is

Severity: Notice

Message: Undefined property: CI_Loader::$validation

Filename: views/search.php

Line Number: 272

The error is in the view

Line number 272 is

Code:

<?php echo $this->validation->error_string;?>

How to add the validation library?