小编bak*_*ker的帖子

如何在Laravel 5.1中编写此查询:

SELECT p.id, p.title, p.created_at, p.updated_at, u.name, COALESCE(c.comments_count, 0) AS comments_count, COALESCE(pl.status_sum, 0) AS status_sum

FROM posts p

LEFT OUTER JOIN users u ON u.id = p.user_id

LEFT OUTER JOIN (
    SELECT pl.post_id, SUM(pl.status) AS status_sum
    FROM postslikes pl
    GROUP BY pl.post_id
) pl ON pl.post_id = p.id

LEFT OUTER JOIN (
    SELECT c.post_id, COUNT(*) as comments_count
    FROM comments c
    GROUP BY c.post_id
) c ON c.post_id = p.id ORDER BY comments_count DESC

我需要它用于分页.我可以毫无问题地执行此查询原始但手动分页器始终给出相同的结果:http: //laravel.com/docs/5.1/pagination#manually-creating-a-paginator 与此处相同的问题:http:// …

“您还可以使用 App 外观上的 setLocale 方法在运行时更改活动语言：” https://laravel.com/docs/5.3/localization#introduction

Route::get('welcome/{locale}', function ($locale) {
    App::setLocale($locale);

    //
});

如果我们有这样的东西，我们如何用 $locale 做到这一点：

Route::group(['prefix' => 'admin/{id}/{locale}', 'namespace' => 'Admin'], function( $locale ) {
    // this does not work.
    App::setLocale( $locale );

    // this does work.
    App::setLocale( Request::segment( 3 ) );

    Route::resource('product', 'ProductController', ['except' => [
        'show'
    ]]);

});