passing the variable in cakephp - php

Question

I am trying to pass the id of the person whosoever logs-in to my site. I am using Auth for login in cakephp. So can anyone tell me how to pass the value during the login and retrieve it at the home page? I am new to cakephp.
This is what I have tried.
app controller.php
class AppController extends Controller {
//...
public $components = array(
'Session',
'Auth' => array(
'loginRedirect' => array('controller' => 'members', 'action' => 'home',$member['Member']['id']),
'logoutRedirect' => array('controller' => 'members', 'action' => 'index')
)
);
MembersController.php
public function home($id = null) {
$this->Member->id = $id;
}
home.ctp
<div align='center'><h2>Hi user welcome to home page </h2></div>
<?php
//I am just trying to print the id of the logged in person
echo $this->Form->value('User.id');
?>
<?php
echo $this->Html->link('LogOut',array('controller'=>'users','action'=>'logout'));
?>

Answer 1

echo $this->Form->value('User.id');
Is part of the FormHelper.
If you would like to have your form prefilled, make use of the conventions. Simply create an input field like this:
echo $this->Form->input('User.id');
If the $this->request->data contains this value ($this->request->data['User']['id']) it will automatically fill your form.
In order to retrieve values from the AuthComponent You can simply do something like $userName= $this->Auth->user('name'); (Just make sure the column 'name' exists in your 'users` database).
In order to pass variables to your view, you can simply use the method set which is defined in the Controller, which is extended by the AppController which is extend by FooBarsController.
If you want to set this variable to your view (as mentioned earlier) use set.
$this->set('userName', $userName);
In your view you can now do:
printf('Welcome %s', $userName);
Blog tutorial to get your started
AuthComponent
FormHelper
How Views work
How Controllers work
How Models work