Laravel 多个 WHERE() 运算符优先级

Question

我使用 Eloquent 编写了以下查询：

Contact::select(DB::raw("DATE_FORMAT(DATE(`created_at`),'%b %d') as date"))
                                 ->addSelect(DB::raw("`created_at`"))
                                 ->addSelect(DB::raw("COUNT(*) as `count`"))
                                 ->where('created_at', '>', $date)
                                 ->ofType($type)
                                 ->groupBy('date')
                                 ->orderBy('created_at', 'ASC')
                                 ->lists('count', 'date');

你可以看到它使用了一个查询范围方法ofType()这是那个方法，它只是向查询添加了一堆额外的 where 子句：

return $query->where('list_name', '=', 'Apples')
            ->orWhere('list_name', '=', 'Oranges')
            ->orWhere('list_name', '=', 'Pears')
            ->orWhere('list_name', '=', 'Plums')
            ->orWhere('list_name', '=', 'Blueberries');

最终这会产生以下真实的 SQL 查询：

SELECT DATE_FORMAT(DATE(`created_at`),'%b %d') as date,`created_at`, COUNT(*) as `count` 
FROM `contacts` 
WHERE `created_at` > '2014-10-02 00:00:00' 
AND `list_name` = 'Apples' 
OR `list_name` = 'Oranges' 
OR `list_name` = 'Pears' 
OR `list_name` = 'Plums' 
OR `list_name` = 'Blueberries' 
GROUP BY `date` 
ORDER BY `created_at` ASC

问题是，created_at当 OR 子句开始时， WHERE > '2014-10-02 00:00:00' 子句被遗漏了。由于运算符优先级。我需要将第一个 AND 之后的所有子句括在括号中，如下所示：

 SELECT DATE_FORMAT(DATE(`created_at`),'%b %d') as date,`created_at`, COUNT(*) as `count` 
    FROM `contacts` 
    WHERE `created_at` > '2014-10-02 00:00:00' 
    AND 
   (`list_name` = 'Apples' 
    OR `list_name` = 'Oranges' 
    OR `list_name` = 'Pears' 
    OR `list_name` = 'Plums' 
    OR `list_name` = 'Blueberries')
    GROUP BY `date` 
    ORDER BY `created_at` ASC

所以，我的问题是，我将如何使用 eloquent 查询构建器来实现这一点。谢谢你。

Answer 1

感谢 mOrsa，我想通了，通过更改我的查询范围方法来利用高级 where：

return $query->where(function($query){

          $query->orWhere('list_name', '=', 'Apples')
                ->orWhere('list_name', '=', 'Oranges')
                ->orWhere('list_name', '=', 'Pears')
                ->orWhere('list_name', '=', 'Plums')
                ->orWhere('list_name', '=', 'Blueberries');
        });

我得到了想要的 SQL。