gistfile1.aw

//My Controller

<?php if (!defined('BASEPATH')) exit('No direct script access allowed');

class api extends REST_Controller{
	//--------------------------------------------------------------------

	public function __construct() {
		parent::__construct();
		$this->lang->load('api');

        $api = $this->session->userdata('api');
        #$this->session->unset_userdata('api');
        
        $CI =& get_instance();

        $dbConfig['database'] = 'example_'.$api->api_dbname;
        $dbConfig['dbprefix'] = 'exa_';
        $dbConfig['hostname'] = $this->db->hostname;
        $dbConfig['username'] = $this->db->username;
        $dbConfig['password'] = $this->db->password;
        $dbConfig['dbdriver'] = $this->db->dbdriver;
        $dbConfig['pconnect'] = $this->db->pconnect;
        $dbConfig['db_debug'] = $this->db->db_debug;
        $dbConfig['cache_on'] = $this->db->cache_on;
        $dbConfig['cachedir'] = $this->db->cachedir;
        $dbConfig['char_set'] = $this->db->char_set;
        $dbConfig['dbcollat'] = $this->db->dbcollat;
        $dbConfig['swap_pre'] = $this->db->swap_pre;
        $dbConfig['autoinit'] = $this->db->autoinit;
        $dbConfig['stricton'] = $this->db->stricton;
        
        $CI->clientDb = $this->load->database($dbConfig, TRUE);

	}

//My Model
<?php
class Map_users extends CI_Model {

    function __construct()
    {
        // Call the Model constructor
        parent::__construct();
    }
    
    /**
     * Gets all rows from the table users per the Client's DB. The database is 
     * determined from their API key that it passed via header.
     * @param  array        $params      paramters for connection
     * @param  'bannedFlag' 'bannedFlag' whether to only show members that aren't banned.
     * @return object
     */
    function getAllUsers($params = array('activeFlag' => false, 'bannedFlag' => false)){
        $this->clientDb->select('
            id,
            username,
            firstname,
            lastname,
            email,
            avatar
        ');
        $this->clientDb->from('users');
        if ($params['activeFlag'] == TRUE){
            $this->clientDb->where('activated', 1);
        }

        if ($params['bannedFlag']  == TRUE){
            $this->clientDb->where('banned', 0);
        }
        $this->clientDb->order_by('username', 'ASC');

        $query = $this->clientDb->get();
        return $query->result();
    }
}

I want to use an basic database initially. When the user will be logged in. I will fetch his user information and his database that I have created manually. Using his login information I will replaced his databbase collecting his login information. Is is possible ?