core/app/Http/Controllers/Admin/EditUser.php

<?php

namespace App\Http\Controllers\Admin;

use App\Enumerations\UserRoles;
use App\Http\Controllers\Controller;
use App\Http\Requests;
use App\Http\Requests\EditUserRequest;
use App\Models\User;
use Illuminate\Support\Facades\Auth;
use Illuminate\Support\Facades\Hash;

class EditUser extends Controller
{
    public function getEditUser($id = null)
    {
        // when no user specified, lets assume we want to edit "me"
        if (!$id) {
            $id = Auth::user()->id;
        }

        // try to find given user
        $user = User::findOrFail($id);

        $roles = UserRoles::getWithTranslations();

        return view('admin.userManagement.edit', ['user' => $user, 'roles' => $roles]);
    }

    /**
     * @param EditUserRequest $request
     * @param                 $id
     *
     * @return \Illuminate\Http\RedirectResponse
     */
    public function postEdit(EditUserRequest $request, $id)
    {
        $user = User::findOrFail($id);

        // update username if set
        if (isset($request->username)) {
            $user->username = $request->username;
        }

        // change name (if set)
        if (isset($request->name)) {
            $user->name = $request->name;
        }

        if (Auth::user()->role == User::ROLE_ADMIN) {
            if (isset($request->role)) {
                $user->role = $request->role;
            }

            if (isset($request->password)) {
                $user->password = Hash::make($request->password);
            }
        }

        $user->email = $request->email;

        $user->save();

        return redirect()
            ->route('users.detail', ['id' => $id])
            ->with('success', trans('admin/userManagement.userSuccessfullyEdited'));
    }
}