Question

在过去的两个小时里，我一直在努力使用Laravel查询生成器创建的MySQL查询，但我不理解为什么参数似乎被忽略。

查询构建器发出的查询如下：

select * from `deals` where
(
    (   
        `created_at` <= '2017-04-10 09:44:07' 
        and `valid_until` >= '2017-04-10 09:44:07'
    ) or (
        `created_at` <= '2017-04-10 09:44:07' 
        and `valid_until` <= '2017-04-10 09:44:07' 
        and `autodelete` = '2'
    ) or (
        `created_at` <= '2017-04-10 09:44:07'
        and `valid_until` <= '2017-04-10 09:44:07' 
        and `autodelete` = '0'
    ) or (
        `created_at` <= '2017-04-10 09:44:07'
        and `valid_until` is null
    )
    and `category_id` != '1'
) and `deals`.`deleted_at` is null
order by `order_date` desc, `created_at` desc 
limit 20 
offset 0

被忽略的部分是category_id的过滤。应排除具有category_id 1的项目，但它们不会被取消。我不明白为什么。

现在我发现当我把那个部分移到括号外面时，它会起作用。唯一的问题是：我没有将这些括号添加到查询中，似乎Laravel自动执行此操作，因为我使用了软删除。

这是我用于创建查询的代码：

        $query = Deal::query()
        ->where(function ($query) {
            // Active with an end date
            $query->where('created_at', '<=', date("Y-m-d H:i:s"))
            ->where('valid_until', '>=', date("Y-m-d H:i:s"));
        })
        ->orwhere(function ($query) {
            // Ended, but with possibility to upload a receipt
            $query->where('created_at', '<=', date("Y-m-d H:i:s"))
            ->where('valid_until', '<=', date("Y-m-d H:i:s"))
            ->where('autodelete', 2);
        })
        ->orwhere(function ($query) {
            // Ended, but keep it online
            $query->where('created_at', '<=', date("Y-m-d H:i:s"))
            ->where('valid_until', '<=', date("Y-m-d H:i:s"))
            ->where('autodelete', 0);
        })
        ->orwhere(function ($query) {
            // No end date
            $query->where('created_at', '<=', date("Y-m-d H:i:s"))
            ->where('valid_until', null);
        });

// Filter categories
if(!empty($deselectedCategories))
{
    foreach($deselectedCategories as $key => $val)
    {
        $query->where('category_id', '!=', $val);
    }
}

$deals = $query->orderBy('order_date', 'desc')->orderBy('created_at', 'desc')->paginate($resultsPerPage);

我必须忽视某些事情，我希望有人可以帮助我。非常感谢你提前！

Answer 1

请仔细查看参数分组https://laravel.com/docs/5.4/queries#parameter-grouping

我重新构建了查询

删除了and category_id！= {Val}以使用whereNotIn

重新调整查询

$query = Deal::where(function
         ($query){
            $query->where(function ($query) {
                                    // Active with an end date
                $query->where('created_at', '<=', date("Y-m-d H:i:s"))
                ->where('valid_until', '>=', date("Y-m-d H:i:s"));
            })
            ->orwhere(function ($query) {
                // Ended, but with possibility to upload a receipt
                $query->where('created_at', '<=', date("Y-m-d H:i:s"))
                ->where('valid_until', '<=', date("Y-m-d H:i:s"))
                ->where('autodelete', 2);
            })
            ->orwhere(function ($query) {
                                    // Ended, but keep it online
                $query->where('created_at', '<=', date("Y-m-d H:i:s"))
                ->where('valid_until', '<=', date("Y-m-d H:i:s"))
                ->where('autodelete', 0);
            })
            ->orwhere(function ($query) {
                                    // No end date
                $query->where('created_at', '<=', date("Y-m-d H:i:s"))
                ->where('valid_until', null);
            });
        });

      if (!empty($deselectedCategories)) {
          $catList =array();
          foreach ($deselectedCategories as $key => $val) {
              $catList[] = $val;
          }
       $query->whereNotIn('category_id', $catList);
    }
$query->whereNull('deleted_at');
$deals = $query->orderBy('order_date', 'desc')->orderBy('created_at', 'desc')->paginate($resultsPerPage);

Laravel Query Builder：意外输出

1 个答案: