将Mysql查询转换为Laravel Eloquent

Question

我在我的应用程序中使用Laravel 5.1。

我的MySQL查询

SELECT * FROM (SELECT uu.*,t.left_id AS meb_id,(CAST(t.pair AS UNSIGNED) - IFNULL(p.pair,0)) AS pair FROM (SELECT left_id,
(CASE 
WHEN ((SELECT COUNT(meb_id) FROM user_count WHERE left_id=u.left_id AND active = 1 AND join_date <= '1442255400000') >= (SELECT COUNT(meb_id) FROM user_count WHERE right_id=u.left_id AND active = 1 AND join_date <= '1442255400000')*2) 
THEN (SELECT COUNT(meb_id) FROM user_count WHERE right_id=u.left_id AND active = 1 AND join_date <= '1442255400000')
WHEN ((SELECT COUNT(meb_id) FROM user_count WHERE left_id=u.left_id AND active = 1 AND join_date <= '1442255400000') < (SELECT COUNT(meb_id) FROM user_count WHERE right_id=u.left_id AND active = 1 AND join_date <= '1442255400000')*2) 
THEN ((SELECT COUNT(meb_id) FROM user_count WHERE right_id=u.left_id AND active = 1 AND join_date <= '1442255400000') /2)
WHEN ((SELECT COUNT(meb_id) FROM user_count WHERE right_id=u.left_id AND active = 1 AND join_date <= '1442255400000') >= (SELECT COUNT(meb_id) FROM user_count WHERE left_id=u.left_id AND active = 1 AND join_date <= '1442255400000')*2)
THEN (SELECT COUNT(meb_id) FROM user_count WHERE left_id=u.left_id AND active = 1 AND join_date <= '1442255400000')
WHEN ((SELECT COUNT(meb_id) FROM user_count WHERE right_id=u.left_id AND active = 1 AND join_date <= '1442255400000') < (SELECT COUNT(meb_id) FROM user_count WHERE left_id=u.left_id AND active = 1 AND join_date <= '1442255400000')*2)
THEN ((SELECT COUNT(meb_id) FROM user_count WHERE left_id=u.left_id AND active = 1 AND join_date <= '1442255400000') / 2) END
) AS pair
FROM user_count AS u WHERE  left_id <> 0 GROUP BY left_id) AS t
LEFT JOIN users AS uu ON uu.`id` = t.left_id
LEFT JOIN `total_payment` p ON t.left_id = p.`meb_id`
WHERE t.pair <> 0) AS f WHERE f.pair > 0  AND f.active = 1

如何在Laravel Eloquent中转换它？我不知道如何在laravel雄辩中使用when case。

我的数据库架构就像这样

user_count表

user表

total_payment表

有人可以帮我吗？

Answer 1

使用DB :: statement（＆＃34;＆＃34;）围绕您的原始查询，如下所示：

DB::statement("INSERT INTO `mydatabase`.`mytable` (`id`, `created_at`, `updated_at`, `deleted_at`) VALUES ('7', '2015-09-26 13:38:48', '2015-09-26 13:43:41', NULL)");

它可以很好地完成工作并且也可以使用种子。

Answer 2

Eloquent是一个ORM（对象关系映射），它意味着您可以将数据库映射到PHP对象（Eloquent使用Active Record模式）。

它不是DBAL，但您仍然可以通过DB Facade执行SQL查询。

您提供的示例，用户表可以是Eloquent对象。

maticnaploca matplo= new maticnaploca ();
matplo.setVisible(true);

从现在起，您可以获取所有用户行，如：

class User extends Model{
   /**
   * The table associated with the model.
   *
   * @var string
   */
  protected $table = 'user';
}

或者你可以通过PK找到一个：

$userCollection = (new User)->all(); //Fetch all rows