在 laravel 中使用带有分页的表单的多个复选框过滤器

Question

我正在使用带有 post 方法的表单并且有多个复选框，当我选中一个复选框并提交表单时，它可以正常工作并且结果带有分页，但是当我单击分页的下一个链接时它显示 404 页面的错误不是找到了。

查看：-

<form action="{{ route('trainer.filter') }}" method="post">
        @csrf
          <!-- Name -->
          <input type="text" class="form-control mb-4" placeholder="Search" name="keywords" aria-label="Search">
          <h6 class="black-text mt-2 "><b class="category">Areas of Experties</b></h6>
          <!-- Copy -->
          @foreach ($expertise_areas as $expertise_area)
            <div class="custom-control custom-checkbox mb-1" style="padding-left: 3px;">
              <label for="expertise_area">
                <input type="checkbox" name="expertise_area[]" value="{{ $expertise_area->id }}">&nbsp;&nbsp;{{ $expertise_area->name }}
              </label>
            </div>
          @endforeach

          <!-- State -->
          <h6 class="black-text mt-2 "><b class="category">Trainer Location (STATE)</b></h6>
          <select class="form-default browser-default custom-select mb-4" name="state" id="state">
             <option selected disabled>Choose State</option>
             @foreach ($states as $state)
             <option value="{{ $state->id }}">{{ $state->name }}</option>
             @endforeach
          </select>
          <h6 class="black-text mt-2 "><b class="category">Trainer Location (City)</b></h6>
          <!-- City -->
          <select class="browser-default custom-select mb-4" name="city" id="city">
             <option selected disabled>Choose City</option>
             @foreach ($cities as $city)
             <option value="{{ $city->id }}">{{ $city->name }}</option>
             @endforeach
          </select>
          <!-- Send button -->
          <button class="btn btn-info btn-block" type="submit">Search</button>
       </form>

分页链接：-

{{ $trainers->links() }}

路线：-

Route::post('trainer/filter', 'HomeController@trainerFilter')->name('trainer.filter');

控制器：-

public function trainerFilter(Request $request)
{
    if ($request->has('keywords')) {
        $trainers = Trainer::where('name', 'LIKE', '%'.$request->keywords.'%')
                    ->orWhere('state_name', 'LIKE', '%'.$request->keywords.'%')
                    ->orWhere('city_name', 'LIKE', '%'.$request->keywords.'%')->orderBy('ranking', 'asc')->paginate(5);
    }}

Answer 1

我认为您错过了通过 resultset 的不同页面在 controller 内的 where 中持久化使用的参数 .

查看您发布的控制器代码，您可以尝试将keywords 参数附加到分页链接，类似这样：

{{ $trainers->appends(['keywords' => $keywords])->links() }}

记得将['keywords' => $request->keywords] 传递给视图。