如何对“有很多"进行分页关系是有序的吗? [英] How to paginate a "has many" relationship that is ordered?

问题描述

我想对以下关系(具有许多应用程序的类别)进行分页:

I would like to paginate the following relationship (a Category having many Apps):

class Category extends Model
{
    public function apps()
    {
        return $this->hasMany('App\App')->orderBy('current_price', 'asc');
    }
}

问题是，当我在该行的末尾添加->paginate(10);时，出现以下错误:

The problem is, when I add ->paginate(10); to the end of that line, I get the following error:

关系方法必须返回一个类型的对象 照亮\数据库\口才\关系\关系

Relationship method must return an object of type Illuminate\Database\Eloquent\Relations\Relation

我在这里想念什么?

推荐答案

您尝试过吗?

$category = Category::first();
$apps = $category->apps()->paginate(10);
return view('example', compact('category', 'apps'));

然后，在您看来，您可以循环浏览这些应用程序.

Then, on your view, you can just loop through the apps.

@foreach ($apps as $app)
    {{ $app->id }}
@endforeach

{!! $apps->render() !!}

如果要将其设置为与类别的关系，则可以使用setRelation方法:

If you want to set it as a relationship to category, you can use the setRelation method:

$category = Category::first();
$category->setRelation('apps', $category->apps()->paginate(10));
return view('example', compact('category');

然后在您看来:

@foreach ($category->apps as $app)
    {{ $app->id }}
@endforeach

{!! $category->apps->render() !!}

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