Check user roles automatic in a middle-ware

ok guys i write a middle ware with his code :

class CheckPermissions
{
    /**
     * Handle an incoming request.
     *
     * @param  \Illuminate\Http\Request  $request
     * @param  \Closure  $next
     * @return mixed
     */
    public function handle($request, Closure $next)
    {

        $user = $request->user();
        $segs = $request->segments();

        $perm = explode("\\", $request->route()->getActionName()); // this will return current controller+action. ex: "ForumController@edit"
        return $next($request);
    }
}

and here is my Models :

User :

class User extends Authenticatable
{

    /**
     * The attributes that are mass assignable.
     *
     * @var array
     */
    protected $fillable = [
        'name', 'email', 'password',
    ];

    /**
     * The attributes excluded from the model's JSON form.
     *
     * @var array
     */
    protected $hidden = [
        'password', 'remember_token',
    ];

    public function roles ()
    {
        return $this->belongsToMany(Role::class);
    }

    public function hasRole ($role)
    {
        if(is_string($role))
        {
            return $this->roles->contains('name', $role);
        }

        return !! $role->intersect($this->roles)->count();
    }

    public function assignRole ($role)
    {
        return $this->roles()->save(
            Role::whereName($role)->firstOrFail()
        );
    }

    public function hasPermission ($perm)
    {
    }
}

Role :

class Role extends Model
{
    public function permissions ()
    {
        return $this->belongsToMany(Permission::class);
    }

    public function givePermissionTo (Permission $permission)
    {
        return $this->permissions()->save($permission);
    }
}

Permission :

class Permission extends Model
{
    public function roles ()
    {
        return $this->belongsToMany(Role::class);
    }
}

Now how i can find out that current logged in user in middleware has this specific permission attached to their groups or not. Please help me guys.

thanks.

Just use Gate. I followed the same video and made this middleware:

use Gate;
use Closure;

class RedirectIfNotAdmin
{
    /**
     * Handle an incoming request.
     *
     * @param  \Illuminate\Http\Request  $request
     * @param  \Closure  $next
     * @return mixed
     */
    public function handle($request, Closure $next)
    {
        if (Gate::denies('access_admin_area')) {
            return redirect('/');
        }

        return $next($request);
    }
}

@zachleigh thanks for your reply. in your example "access_admin_area" should be the name of the permission right? i check it but when i try to access my specific url i get this error :

ErrorException in Gate.php line 321: 

Illegal offset type in isset or empty

What does you AuthController look like?

@zachleigh thank you. it worked like piece of cake. dont know how but it worked. :D

now i have another question. as u watch the video we can access user roles from their model like this :

$user_roles = User::find(1)->roles; // a collection of the roles for user with id 1.

right? now how can i get the reverse of this?

i have a role & i want to get list of users in this role.

$role = Role::find(1); // i want a list of users in this role

i cant get this result in anyway. help me plz