zend multidb for sqlite - php

Question

I am trying to set up multidb. The multiple datatbase connections will be coming dynamically entered by users using a form.
bootstrap.php
private $_session = null;
public function init() {
Zend_Session::start();
$this->_session = new Zend_Session_Namespace();
}
protected function _initDb()
{
$resource = $this->getPluginResource('multidb');
Zend_Registry::set("multidb", $resource);
}
indexcontroller.php
public function indexAction()
{
// action body
$request = $this->getRequest();
$form = new Application_Form_Project();
if ($this->getRequest()->isPost()) {
if ($form->isValid($request->getPost())) {
$x = $form->getValues();
//return $this->_helper->redirector('index');
$dbAdapter = Zend_Db::factory("pdo_sqlite", array("dbname"=>"/../data/db/".$x["username"].".db"));
Zend_Db_Table::setDefaultAdapter($dbAdapter);
//print_r($dbAdapter);
Zend_Registry::set('index', $dbAdapter);
$this->_redirect('/line');
}
}
$this->view->form = $form;
}
Application_Model_PgeLine2DMapper
protected $_dbTable;
public function setDbTable($dbTable)
{
$multidb = Zend_Registry::get("multidb");
$registry = Zend_Registry::getInstance();
print_r($registry);
foreach ($registry as $index => $value) {
echo "Registry index $index contains: ";
var_dump($value);
echo "<br>";
}
if (is_string($dbTable)) {
$dbTable = new $dbTable($multidb->getDb('db1'));
}
if (!$dbTable instanceof Zend_Db_Table_Abstract) {
throw new Exception('Invalid table data gateway provided');
}
$this->_dbTable = $dbTable;
return $this;
}
public function getDbTable()
{
if (null === $this->_dbTable) {
$this->setDbTable('Application_Model_DbTable_PgeLine2D');
}
return $this->_dbTable;
}
public function save(Application_Model_PgeLine2D $pgeLine2D)
{
$data = array(
'PGA_Name' => $pgeLine2D->getPGA_Name()
);
if( null === ($id = $pgeLine2D->getPGA_Id()) ) {
unset($data['id']);
$this->getDbTable()->insert($data);
} else {
$this->getDbTable()->update($data, array('PGA_Id = ?' => $id));
}
}
public function find($id, Application_Model_PgeLine2D $pgeLine2D)
{
$result = $this->getDbTable()->find($id);
if (0 == count($result)) {
return;
}
$row = $result->current();
$pgeLine2D->setPGA_Id($row->PGA_Id)
->setPGA_Name($row->PGA_Name);
}
public function fetchAll()
{
$resultSet = $this->getDbTable()->fetchAll();
$entries = array();
foreach ($resultSet as $row) {
$entry = new Application_Model_PgeLine2D();
$entry->setPGA_Id($row->PGA_Id)
->setPGA_Name($row->PGA_Name);
$entries[] = $entry;
}
return $entries;
}
error i get is below
Fatal error: Uncaught exception 'Zend_Db_Adapter_Exception' with message 'Configuration array must have a key for 'dbname' that names the database instance' in /opt/eposdatatransfer/library/Zend/Db/Adapter/Pdo/Sqlite.php:110 Stack trace: #0 /opt/eposdatatransfer/library/Zend/Db/Adapter/Abstract.php(183): Zend_Db_Adapter_Pdo_Sqlite->_checkRequiredOptions(Array) #1 /opt/eposdatatransfer/library/Zend/Db/Adapter/Pdo/Sqlite.php(94): Zend_Db_Adapter_Abstract->__construct(Array) #2 /opt/eposdatatransfer/library/Zend/Db.php(270): Zend_Db_Adapter_Pdo_Sqlite->__construct(Array) #3 /opt/eposdatatransfer/library/Zend/Application/Resource/Multidb.php(99): Zend_Db::factory('PDO_SQLITE', Array) #4 /opt/eposdatatransfer/library/Zend/Application/Bootstrap/BootstrapAbstract.php(683): Zend_Application_Resource_Multidb->init() #5 /opt/eposdatatransfer/library/Zend/Application/Bootstrap/BootstrapAbstract.php(626): Zend_Application_Bootstrap_BootstrapAbstract->_executeResource('multidb') #6 /opt/eposdatatransfer/library/Zend/Application/Bootst in /opt/eposdatatransfer/library/Zend/Db/Adapter/Pdo/Sqlite.php on line 110