php cake Auth inside class - php

Question

I need to check if a user is existing in the mgrUser table. now the propblem is the controller is in the adminController while the model is in the mgrUserModel. how do i use Auth for this? Thats the reason why I made a generic login code.
public function login() {
// if ($this->Auth->login()) {
// return $this->redirect($this->Auth->redirectUrl());
// }
// $this->Flash->error(
// __('Username ou password incorrect')
// );
//since the model is in a different view, I needed to includ the mgrModel and create a generic login
//will revamp the code to fit the built in Aut code for php cake
if(isset($_POST['submit'])) {
$User_ID = htmlspecialchars($_POST['user_id']);
$Pass = htmlspecialchars($_POST['pass']);
try {
$mgrUserModel = new MgrUser();
$isValid = $mgrUserModel->find('first', array(
'conditions' => array("user_id" => $User_ID)
));
if($isValid != null){
if (($isValid['MgrUser']['pass']) == $Pass) {
//this doesnot work
$this->Auth->allow();
$this->redirect($this->Auth->redirectUrl());
}
else{
}
}
} catch (Exception $e) {
//echo "not logged in";
}
// this echo will show the id and pass that was taken based on the user_id and pass that the user will input
//for testing only
// echo $isValid2['MgrUser']['id'];
// echo $isValid2['MgrUser']['pass'];
}
}

Answer 1

You need double == to compare things,
function checkMe()
{
if($user == 'me'){
$this->Auth->allow('detail');
}
}
what you did was assign "me" string to variable $user which always returns true because assignment was possible
Anyway you should use it in beforeFilter which is running before every action from this controller, which makes much more sense
public function beforeFilter() {
parent::beforeFilter();
if($user == 'me'){
$this->Auth->allow('detail');
}
}

Answer 2

the Auth component could be configured to read the user information via another userModel (The model name of the users table). It defaults to Users.
please consult the book for appropriate cakephp version: https://book.cakephp.org/3.0/en/controllers/components/authentication.html#configuring-authentication-handlers