ORM not working in Default UserController & User Model in laravel - laravel

Question

I want to get User wise Role. here is I'm facing error ....
UserController.php ( user controller file )
namespace App\Http\Controllers;
use Illuminate\Http\Request;
use App\Http\Requests\UserRequest;
use App\Employee;
use App\Role;
use App\User;
use App\Site;
use App\Client;
use App\ProjectType;
use App\UserPermission;
use Auth;
use DB;
use App\Project;
class UsersController extends BaseController {
public function __construct() {
$this->isSetClientAndProjectType();
$data = User::with('Role')->first();
echo "<pre>";print_r(json_decode($data)); die;
}
}
User.php ( user model file )
namespace App;
use Illuminate\Notifications\Notifiable;
use Illuminate\Foundation\Auth\User as Authenticatable;
use Illuminate\Database\Eloquent\SoftDeletes;
class User extends Authenticatable {
use SoftDeletes;
use Notifiable;
protected $fillable = [
'name', 'role_id', 'password', 'siteid', 'email', 'status', 'allowed_to_bypass_pm', 'allowed_to_bypass_admin'
];
protected $hidden = [
'password', 'remember_token',
];
// Get users roles
public function Role() {
return $this->hasMany('App\Role', 'role_id', 'id');
}
}
Error is
How can i solve this error?
Help me guys.
Thank You.

Answer 1

If a user has many "roles" it should be public function roles().
You have defined:
A single user has a role_id
Therefore you need:
If a user has a single role it would be:
public function role() {
return $this->belongsTo('App\Role');
}
The reverse on the Role model would be:
public function users() {
return $this->belongsToMany('App\User');
}
Since many users can have the same role.
Hope this helps.

Answer 2

You need to add belongsTo relationship
namespace App;
use Illuminate\Notifications\Notifiable;
use Illuminate\Foundation\Auth\User as Authenticatable;
use Illuminate\Database\Eloquent\SoftDeletes;
class User extends Authenticatable {
use SoftDeletes, Notifiable;
protected $fillable = [
'name', 'role_id', 'password', 'siteid', 'email', 'status', 'allowed_to_bypass_pm', 'allowed_to_bypass_admin'
];
protected $hidden = [
'password', 'remember_token',
];
// Get user's role
public function role() {
return $this->belongsTo('App\Role');
}
}
Now fetch data
$user = User::with('role')->find(1);
$role = $user->role;

Answer 3

You need to make sure your table structure and foreign key references are compatible with the model relationship methods used.
For example, you have used "HasMany" relationship on User model. For that, you will have to make sure that each record/row in users table(User model) "has many" associated records/rows in roles table(Role model).
Here HasMany method assumes a foreign key "role_id" on roles table(Role Model). On not finding of which, it throws error.
You first need to take in consideration the table structure of roles and users table(User and Role model) as per your requirement, and than add model relationship methods accordingly.
It can be a bit tricky if you are using the methods for the first time, you can refer the laravel documentation for the same:
eloquent-relationships