将 Mysql 查询转换为 Laravel 5 Eloquent？

Question

我在我的应用程序中使用 Laravel 5.1。我的 MySQL 查询是

"Select * from "
        . "(Select u.* from "
        . "( "
        . "SELECT u2.id as user_id, u2.fname as fname, u2.lname as lname, u2.uname as uname, u2.email as email, u2.address as address, u2.city_id as city_id, u2.website as website FROM users u1, users u2 where u1.city_id = u2.city_id && u1.id = '$this->current_user_id' ) 
            u left join follows f on u.user_id = f.following_id where f.following_id is null 
            UNION
            Select uu.id as user_id, uu.fname as fname, uu.lname as lname, uu.uname as uname, uu.email as email, uu.address as address, uu.city_id as city_id, uu.website as website from users uu where uu.id in (Select u.user_id from (SELECT user_id FROM reviews group by user_id order by count(user_id) desc5
            ) u left join follows f on u.user_id=f.following_id where f.following_id is null
            )
            ) 
            T LIMIT 5"

如何将其转换为 Laravel Eloquent？

Answer 1

该查询在功能上是否与该查询相同：

SELECT u2.id user_id
     , u2.fname 
     , u2.lname 
     , u2.uname 
     , u2.email 
     , u2.address 
     , u2.city_id 
     , u2.website 
  FROM users u1
  JOIN users u2 
    ON u2.city_id = u1.city_id 
  LEFT
  JOIN follows f 
    ON f.following_id = u.user_id 
 WHERE f.following_id is null 
 UNION
SELECT uu.id user_id
     , uu.fname 
     , uu.lname 
     , uu.uname 
     , uu.email 
     , uu.address 
     , uu.city_id 
     , uu.website 
  FROM users uu
  JOIN 
     ( SELECT r.user_id 
         FROM reviews r
         LEFT
         JOIN follows f
           ON f.following_id = r.user_id 
        WHERE f.following_id IS NULL
        GROUP 
           BY user_id 
        ORDER 
           BY COUNT(user_id) DESC 
        LIMIT 5
     ) x
    ON x.user_id = uu.id;

?