display logged in user details from in codeigniter - php

Question

view controller
<?php
class Site extends CI_Controller {
function homePage() {
$this->load->view('homePage');
}
function getValues($username) {
$this->load->model('customer_model');
$data['results']=$this->customer_model->getOne($username);
$this->load->view('view_db',$data);
}
}
I wanna display the logged in user details from database to a page. where the user logs in and it directs to home page and in that , there is link which directs to view the users details according to my design..
view Controller of login
<?php
class Login extends CI_Controller {
function index() {
//loads the main page to be displaye din the page
$this->load->view('login_form');
}
function validate_credentials() {
$this->load->model('customer_model');
$query = $this->customer_model->validate();
if ($query) {//if the user credidential is validated
$data = array(
'username' => $this->input->post('username'),
'is_logged_in' => true
);
//retrieving the session data
$this->session->set_userdata($data);
redirect('site/homePage');
} else {
$this->index();
}
}
the model view--- i have mentioned only getting a specific user
function getOne($username){
$query=$this->db->query('SELECT * FROM customer WHERE username = $username');
//$this->db->select('*');
//$query= $this->db->get('customer');
return $query->result();
}
and the view.. where now i just wanna retrieve the value and check later i can improve the interface ;)
<?php
//print_r($results);
foreach($results as $row) {
echo $row->id;
echo $row->last_name;
echo "<br/>";
}
?>
i know it should be done through a session .. but how to do it?

Answer 1

Ok so when this person who is now logged in clicks on the link that brings them to the getValues() method. You can just do a check to see if they are logged in, then if they are retrieve their information based on the sessions username key.
function getValues(){
if ($this->session->userdata('is_logged_in')) {
$username = $this->session->userdata('username');
//Get your db results
$this->load->model('customer_model');
$data['results']=$this->customer_model->getOne($username);
$this->load->view('view_db',$data);
} else{
//What you want to happen when they are not logged in.
}
Does that make sense?