搜索后分页仅适用于第一页

Question

第一页将正确排序。但是，第二页（以及更远的页面）将恢复为好像搜索中根本没有填写任何字段一样。

我正在收集以下表格中的搜索字段：

{{ Form::open(['route' => 'admin.users.search', 'method' => 'get', 'class' => 'navbar-form navbar-left form-inline', 'role' => 'search']) }}

<div class="form-group">
    {{ Form::text('user_id', request('user_id'), ['class' => 'form-control', 'size' => '8', 'placeholder' => 'ID']) }}
</div>


<div class="form-group">
    {{ Form::email('email', request('email'), ['class' => 'form-control', 'size' => '20', 'placeholder' => 'Email']) }}
</div>

<div class="form-group">
    {{ Form::text('first_name', request('first_name'), ['class' => 'form-control', 'size' => '20', 'placeholder' => 'First Name']) }}
</div>

<div class="form-group">
    {{ Form::text('family_name', request('family_name'), ['class' => 'form-control', 'size' => '20', 'placeholder' => 'Family Name']) }}
</div>

<div class="form-group">
    <div class="selectize-lg">
        {{ Form::select('institution_id', $institutions, request('institution_id'), ['class' => 'form-control', 'size' => '200', 'data-selectize']) }}
    </div>
</div>

<div class="form-group">
    <div class="selectize-lg">
        {{ Form::select('exam_id', $exams, request('exam_id'), ['class' => 'form-control', 'data-selectize']) }}
    </div>
</div>

<div class="form-group  ">
    {{ Form::submit('Search', ['class' => 'btn btn-default']) }}
</div>

<a href="{{ route('admin.users.index') }}" class="btn btn-warning">Clear</a>

{{ Form::close() }}

提交表单后，它会点击 GET 路由

Route::get('members/search', 'UsersController@search')->name('admin.users.search');

然后是用户控制器：

 $users = User::with('exam', 'institution');


    if ($request->has('user_id')) {
        $users->whereId($request->user_id);
    }

    if ($request->has('email')) {
        $users->whereEmail($request->email);
    }

    if ($request->has('first_name')) {
        $users->where('first_name', 'LIKE', "%{$request->first_name}%");
    }

    if ($request->has('family_name')) {
        $users->where('family_name', 'LIKE', "%{$request->family_name}%");
    }

    if ($request->has('institution_id')) {
        $users->whereInstitutionId($request->institution_id);
    }

    if ($request->has('exam_id')) {
        $users->whereExamId($request->exam_id);
    }

    $users = $users->latest()->paginate(48);
    $usersTotal = $users->total();

    $exams = ['' => 'Exam...'] + Exam::orderBy('title')
        ->pluck('title', 'id')
        ->all();

    $institutions = ['' => 'University...'] + Institution::orderBy('name')
        ->pluck('name', 'id')
        ->all();

    return view('admin.users.index', compact('users', 'usersTotal', 'exams', 'institutions'));

然后，我在视图中添加这样的分页链接：

{{ $users->appends(array_filter(request()->except('page')))->render() }}

但是，搜索结果只在第一页有效。例如，第一页上的路线将如下所示：

search?user_id=&email=hello%40world&first_name=John&family_name=Smith&institution_id=1&exam_id=1

但是第二页会是这样的：

search?page=2

我觉得这很费解，也不太确定是什么原因导致第二页上的搜索失败。

Answer 1

From the docs:

Appending To Pagination Links

You may append to the query string of pagination links using the appends method. For example, to append sort=votes to each pagination link, you should make the following call to appends:

{{ $users->appends(['sort' => 'votes'])->links() }} If you wish to append a "hash fragment" to the paginator's URLs, you may use the fragment method. For example, to append #foo to the end of each pagination link, make the following call to the fragment method:

{{ $users->fragment('foo')->links() }}

你几乎走在了正确的轨道上：

{{ $users->appends(array_filter(request()->except('page')))->render() }}

当您切换页面时，这段代码的和平之处在于继承页面请求，这是必要的，因为这是为您完成的。因此，您需要指定要保留的请求数据。例如：

{{ $users->appends(Request::except('page'))->links() }}

会将所有请求数据添加到下一页，但分页链接除外，因为这是默认添加的。

注意：我注意到您正在使用 GET 请求发送 ID，请小心操作。恶意用户可以看到您的数据库结构并可能利用它。

搜索后分页仅适用于第一页

Pagination after search only works on the first page

php

pagination

laravel

laravel-5

laravel-5.3