A value for the identity was not provided prior to authentication with Zend_Auth_Adapter_DbTable

Question

I am getting below error while running Login Authentication Code on. I am using zend framework & zend studio as IDE

A value for the identity was not provided prior to authentication with Zend_Auth_Adapter_DbTable.

Below is the code which i have written:

public function authAction(){
        $request    = $this->getRequest();
        $registry   = Zend_Registry::getInstance();
        $auth       = Zend_Auth::getInstance();

        $DB = $registry['zenddb']; //zenddb is database name

        $authAdapter = new Zend_Auth_Adapter_DbTable($DB);
        $authAdapter->setTableName('user');



        $authAdapter->setIdentityColumn('user_name');
        $authAdapter->setCredentialColumn('password');

        // Set the input credential values
        $uname = $request->getParam('user_name');
        $paswd = $request->getParam('password');
        $authAdapter->setIdentity($uname);
        $authAdapter->setCredential(md5($paswd));

        // Perform the authentication query, saving the result
        $result = $auth->authenticate($authAdapter);

        if($result->isValid()){
            $data = $authAdapter->getResultRowObject(null,'password');
            $auth->getStorage()->write($data);
            $this->_redirect('userpage');
        }else{
            $this->_redirect('login');
        }
    }

Ronak K · Answer 1 · 2014-02-17T08:59:03.927

1

This error usually occurs when you leave the credential fields blank in your form,

so zend rectifies is with a catch block which throws the error which you mentioned. Official Ticket

you can solve it by putting validation on field related to the empty fields. // e.g. 'required' => true

hope it helps.

edited Feb 17 '14 at 08:59

answered Feb 17 '14 at 08:13

Ronak K

1,567
13
23

Thanks, but there wasn't a blank credential field. – Gaurav Pawar Feb 17 '14 at 08:40
1

did you add the `'required'=>true` in your fields in your form ? – Ronak K Feb 17 '14 at 08:58
Got the desired output now. – Gaurav Pawar Feb 17 '14 at 10:52
how so ? did you got your own answer ? please share it here so this can be marked as completed, or did you find my answer helpful, if so do consider [accepting answer](http://meta.stackexchange.com/questions/5234/how-does-accepting-an-answer-work) – Ronak K Feb 17 '14 at 11:33
Hey , I got my own answer and same has been posted now....thanks for your help!!! – Gaurav Pawar Feb 17 '14 at 12:27

score 0 · Answer 2 · answered Feb 17 '14 at 12:25

 public function loginAction()
    {
        $this->_helper->layout->setLayout('loginlayout');

                $request = $this->getRequest();
                $form    = new Application_Form_loginForm();
                $login="";

                if ($this->getRequest()->isPost()) {
                    if ($form->isValid($request->getPost())) {
                        $request    = $this->getRequest();
                        // Set the input credential values
                    $registry   = Zend_Registry::getInstance();
                $auth       = Zend_Auth::getInstance();


                $params = array('host'      =>'localhost',
                        'username'  =>'root',
                        'password'  =>'',
                        'dbname'    =>'zendDb'
                );


                $DB = new Zend_Db_Adapter_Pdo_Mysql($params);


                $authAdapter = new Zend_Auth_Adapter_DbTable($DB);

                $authAdapter->setTableName('user');
                $authAdapter->setIdentityColumn('user_name');
                $authAdapter->setCredentialColumn('password');
                $request    = $this->getRequest();
                // Set the input credential values
                $uname = $request->getParam('user_name');

                $paswd = $request->getParam('password');

                $authAdapter->setIdentity($uname);
                $authAdapter->setCredential(md5($paswd));

                $auth       = Zend_Auth::getInstance();
                // Perform the authentication query, saving the result
                $result = $auth->authenticate($authAdapter);

                if($result->isValid()){
                    $data = $authAdapter->getResultRowObject(null,'password');

                    $auth->getStorage()->write($data);
                    $login="";
                    $this->_redirect('database/user');
                }else{

                   $login="Invalid User Name or Password";

                    //$this->_redirect('database/login');
                }


                //return $this->_helper->redirector('auth');
            }
            }
            else {
                $login="";
            }

            $this->view->assign('title','Login');
            $this->view->assign('description',$login);
            $this->view->form = $form;

    }

Indrasinh Bihola · Answer 3 · 2014-09-22T04:58:27.043

0

if ($this->getRequest()->isPost()) {
    if ($form->isValid($request->getPost())){
        //Simply Wrap your Code between this two conditions.
    }
}

As you can see here:

First you have to check whether the request is POST or not.

Second than you have to check whether it's valid for your form or not.

edited Sep 22 '14 at 04:58

answered Aug 19 '14 at 09:45

Indrasinh Bihola

2,094
3
23
25

Please explain what is wrong with OP's code and why that solves the problem. – Baum mit Augen Aug 19 '14 at 11:23
Actually I 'm beginner to Zend. I think If you forget to check whether request is post or normal request it creates problem. – Indrasinh Bihola Aug 20 '14 at 06:09

A value for the identity was not provided prior to authentication with Zend_Auth_Adapter_DbTable

3 Answers3