//login functiion
public function authenticate()
	{
		$username = $this->input->post('uname');
		$password =  $this->input->post('password');
		$pass =  hash_password($password);

		$res = $this->AppModel->fetch($username,$pass,'organisers');


			if ($res['email']==$username && $res['password']==$pass && $res['status']=='1') {

					$array = array(
					'logged_in' => true,
					'user_id'=>$res['id'],

				);


				$this->session->set_userdata( $array );


				redirect(base_url('home'),'refresh');
			}
			elseif ($res['email']==$username && $res['password']==$pass && $res['status']=='0') {
				//$data['error'] = "Please verify your account and continue";
				$data['phone_number'] = $res['phone_number'];
				$this->load->view('verification_view', $data);

			}else {
				$data['error'] = "Invalid credentials. Please try again";
				$this->load->view('login_view', $data);
			}
	}