Laravel 5.5 对查询进行分页 - 预加载

Question

我有一个问题，不知道如何解决。我在网上搜索过，但仍然无法得到确切的答案。我想要做的是对查询 table 或下面的查询进行分页。一切似乎都正常（至少我每页收到 20 个查询，但我不知道如何显示链接（）？

我将 Inquiries 保存在 $thecusts 集合中并将其传递给视图。表和关系：员工 - 经销商（多对多）经销商-客户（1对多）客户-查询（1 对多）。

所以我需要为拥有许多经销商的员工分页 x 个查询。

有人可以帮忙吗？

$justch = $me->employeehasdealers()->get(['dealers.dealer_id','dealer','abbreviation']); //list of dealers assigned to auth employee
$justch2=$justch->load(['DealerHasInquiries'=>function($query){
    $query->with('inquiriescomments:comments_inquiries_id,inquiry_id,employee_id,comments','inquiryspdl','inquiriescustomers:customer_id,customer')->paginate(20);
}]);


$thecusts = new Collection();
foreach ($justch2 as $just) {
    $thecusts = $thecusts->merge($just->DealerHasInquiries);
}

Answer 1

however I can't figure out how to display the links()?

您可以在 blade:

{{ $justch2->links() }}

Answer 2

问题是您没有传回 paginator 实例。您可以根据 $thecusts:

在您的控制器中手动创建一个

$perPage=20;
return view('my-view', ['paginator' => new Paginator($thecusts->toArray(), $perPage)]);

然后您可以在视图中的 paginator 实例上调用 links 方法：

{{ $paginator->links() }}

编辑

您也许可以在单个查询中简单地完成所有这些操作，例如：

$thecusts = $me->employeehasdealers()->with(['DealerHasInquiries'=>function($query){
    $query->with('inquiriescomments:comments_inquiries_id,inquiry_id,employee_id,comments','inquiryspdl','inquiriescustomers:customer_id,customer');
}])->paginate(20);

return view('my-view, compact('thecusts'));

Answer 3

答案已由 btl 发布 -（非常感谢！）

这是我添加了一些内容的代码：

控制器：

$perpage=19;     
 $justch = $me->employeehasdealers()->with(['DealerHasInquiries'=>function($query) use ($perpage){
            $query->with('inquiriescomments:comments_inquiries_id,inquiry_id,employee_id,comments','inquiryspdl','inquiriescustomers:customer_id,customer')->simplePaginate($perpage);
        }])->get(['dealers.dealer_id','dealer','abbreviation']);
     foreach ($justch as $just) {
                $thecusts = $thecusts->merge($just->DealerHasInquiries);
                           }

     $paginator = new Paginator($thecusts->toArray(),$perpage, Paginator::resolveCurrentPage(),['path'=>Paginator::resolveCurrentPath()]);
    $inquiries = $thecusts;

    return view('/inquiries', ['paginator'=>$paginator,'inquiries' => $inquiries]);

Blade: {{$paginator->links()}}

Laravel 5.5 对查询进行分页 - 预加载

Laravel 5.5 Paginate the Query - Eager Loading

pagination

eager

loading

laravel