Laravel 5.2 getNameOrUsername 方法不起作用

我正在搜索数据，就像用户名一样。我通过使用像 <p>Jordan1</p> 这样的静态名称让它工作，但是当我想让它动态化时，例如让我的实际用户名反映在页面上，当我使用此方法时它不起作用

{{ $user->getNameOrUsername() }}

作为回报，我得到这个错误：

Builder 中的 BadMethodCallException .php第 2130 行：

调用未定义的方法 Illuminate''Database''Query''Builder：：getNameOrUsername（）

<小时 />

用户块刀片.php

    <div class="media">
        <a class="pull-left" href="#">
            <img class="media-object" alt="{{ $user->getNameOrUsername() }}" src="">
        </a>
        <div class="media-body">
            <h4 class="media-heading">
            <a href="#">{{ $user->getNameOrUsername() }}</a>
            </h4>
                @if ($user->location)
                    <p>{{ $user->location }}</p>
                @endif
        </div>
    </div>

<小时 />

结果.刀片.php

@include('layouts.--header')
<div class="container">
    <h4>Your search for "{{ Request::input('query') }}"</h4>
    @if (!$users->count())
        <p> No results found, sorry.</p>
    @else
    <div class="row">
        <div class="col-lg-12">
            @foreach ($users as $user)
                @include('search.userblock')
            @endforeach
        </div>
    </div>
    @endif
</div>
@include('layouts.--footer')

<小时 />

搜索控制器.php

<?php
namespace SCM'Http'Controllers;
use Illuminate'Http'Request;
use DB;
use SCM'User;
use Illuminate'Http'Requests;
class SearchController extends Controller
{
    public function getResults(Request $request)
    {   
        $query = $request->input('query');
        
        if (!$query) {
            return redirect ()->route('welcome');
        }
        $users = User::where(DB::raw("CONCAT(first_name, ' ', last_name)"), '
            LIKE', "%{$query}%")
            ->orWhere('username', 'LIKE', "%{$query}%")
            ->get();
        return view('search.results')->with('users', $users);
    }
}

<小时 />

路线.php

<?php
/*
|--------------------------------------------------------------------------
| Routes File
|--------------------------------------------------------------------------
|
| Here is where you will register all of the routes in an application.
| It's a breeze. Simply tell Laravel the URIs it should respond to
| and give it the controller to call when that URI is requested.
|
*/

/*
|--------------------------------------------------------------------------
| Application Routes
|--------------------------------------------------------------------------
|
| This route group applies the "web" middleware group to every route
| it contains. The "web" middleware group is defined in your HTTP
| kernel and includes session state, CSRF protection, and more.
|
*/
Route::group(['middleware' => ['web']], function () {
    Route::get('/login', function () {
    return view('auth/login');
});
    Route::get('/register', function () {
    return view('auth/login');
});
});
Route::group(['middleware' => 'web'], function () {
    Route::auth();
    
    Route::get('/', [
    'as' => 'welcome', 'uses' => 'WelcomeController@index'
]);
    Route::get('/profile', function () {
    return view('layouts/-profile');
});
    Route::get('profile/{username}', function () {
    return view('layouts/-profile');
});
    Route::get('settings/{username}', function () {
    return view('layouts/-settings');
});
    Route::get('/settings', function () {
    return view('layouts/-settings');
});

    Route::get('/home', 'HomeController@index');
});
/**
* Search
*/
Route::get('/search', [
    'as' => 'search.results', 'uses' => 'SearchController@getResults'
]);

public function getNameOrUsername() {
    return $this->name ? $this->name : $this->username;
}