cakephp3.0 query Builder Retrieve data - query-builder

Question

Hey I am facing some problem I am trying to create a patientcontroller.php in which I want to get data for only one user id from users table so that I can create a dashboard for sngle patient here is my code :
PatientsController.php
<?php
namespace App\Controller;
use App\Controller\AppController;
use Cake\Event\Event;
use Cake\Network\Exception\NotFoundException;
use Cake\ORM\TableRegistry;
class PatientsController extends AppController
{
public function isAuthorized($user)
{
return true;
}
public function index (){
echo $this->Auth->user('id');
$users = TableRegistry::get('Users');
$users->find('all')->where(['id' => 4]);
$this->set('users', $users);
}
I want to get username bio and profile information in my Index.ctp I am trying to pass data using query builder but I am confused so any help

Answer 1

So you have a number of issues with both your approach, techniques and also your code.
Methods
http://book.cakephp.org/3.0/en/controllers.html
If you want to get a single patients record, you should be using the view() method in your controller. So you need to create a new method called view(), in which you can return your record. This method should, in most cases, take an id as the parameter.
Tables
http://book.cakephp.org/3.0/en/orm/table-objects.html
In CakePHP the table which is associated with the controller will be loaded by default. So there is no need to use the TableRegistry to load the table.
Fetching data
http://book.cakephp.org/3.0/en/orm/retrieving-data-and-resultsets.html
When you are looking for a single record you have two choices. You can either just use a find, with a first().
$this->Patients->find()
->where(['id' => $id])
->first();
Or you can use get() which will throw an exception if a record isn't found.
$this->Patients->get($id);
Joining associated data
http://book.cakephp.org/3.0/en/orm/associations.html
If you want to join data to your user, then you'll need Tables to manage that data, which can then be contained, using foreign keys in your database. This will change your finds, to include a contain() call.
$this->Patients->find()
->where(['id' => $id])
->contain(['Profiles])
->first();
Outputting data in the view
You can set the result of your find to the view as you have done, and then you can loop through, or output it how you like, using the variable you've set. In your case $user.
Summary
So overall you can see that there is quite a bit you are missing. Hopefully this will help get you on track.

Answer 2

Given that this is basically your third question here asking for exactly the same thing (getting the results of a query) I will point you to these very useful resources that you should read:
The tutorials: http://book.cakephp.org/3.0/en/tutorials-and-examples.html
They basically have everything you need to understand how queries work and how they can be used in the view and forms.
The ORM manual: http://book.cakephp.org/3.0/en/orm.html
You will find plenty examples of getting data and using it after retrieving it.

Answer 3

I Found A solution for this query : Full code for this kind of problem :
PatientsController.php
<?php
namespace App\Controller;
use App\Controller\AppController;
use Cake\Event\Event;
use Cake\Network\Exception\NotFoundException;
use Cake\ORM\TableRegistry;
class PatientsController extends AppController {
public function isAuthorized($user) {
return true;
}
public function index () {
$id = $this->Auth->user('id');
$articles = TableRegistry::get('Users');
$query = $articles->find()
->where(['id' => $id]);
$this->set(compact('query'));
}
}
For Index.ctp
<!-- File: src/Template/Articles/index.ctp (edit links added) -->
<h1>Patient Dashboard</h1>
I am patient
<?php
foreach ($query as $row) {
echo $row->username ,$row->password;
}
?>
This kind of solution is veryhelpful if you are just trying to move from procedural php to oops in cakephp .