Question

我正在尝试构建一个laravel查询，该查询应按以下方式在名为“ competition_type”的列中对值进行排序：“ ATP-SINGLES”，“ WTA-SINGLES”，“ CHALLENGER MEN-SINGLES”，“ CHALLENGER WOMEN-SINGLES” '，'ITF MEN-SINGLES'，'ITF WOMEN-SINGLES'，但我尝试了此查询，但确实有效...

$matches = Match::select()
           ->where('date', $date)->where('pick_score', '<>', '0');
$matches = $matches->orderBy('hour', 'ASC');
$matches = $matches->orderBy(Match::raw("case when competition_type in ('ATP - SINGLES', 'WTA - SINGLES") then -1 else competition_type end, competition_type'));

我应该进行哪些更改才能使其正常工作？

Answer 1

您可以通过以下查询将其归档，使用Eloquent / Collection中可用的transform方法可以使代码更具可读性。

Match::select()
    ->whereDate($date)
    ->where('pick_score', '<>', '0')
    ->orderBy('hour')
    ->transform(function ($match) {
        if(
            $match->competition_type == "ATP - SINGLES" 
            or
            $match->competition_type == "WTA - SINGLES"
        ){
            $match->competition_type = -1;
        }else{
            $match->competition_type = 'competition_type';
        }
        return $match;
    })
    ->sortBy('competition_type')

注意：您可以在laravel中使用动态Where条件， whereFiledName（value）

Answer 2

引号中包含语法，将单引号更改为双引号，以便可以包含'ATP-SINGLES'等：

"case when competition_type in ('ATP - SINGLES', 'WTA - SINGLES') then -1 else competition_type end, competition_type"

将Match::raw()更改为DB::raw()
您有两个orderBy，您需要将其设置为一个，如果要先按hour进行订购，然后再按competition_type进行订购，则需要这样做：

orderBy('hour', DB::raw("CASE WHEN competition_type IN ('ATP - SINGLES', 'WTA - SINGLES') then -1 ELSE competition_type END"))

因此您的代码将如下所示：

$matches = Match::where('date', $date)
                ->where('pick_score', '<>', '0');

$matches = $matches->orderBy('hour', DB::raw("CASE WHEN 
                                      competition_type IN ('ATP - SINGLES', 'WTA - SINGLES') then -1 
                                      ELSE competition_type END"))
                  // you can remove case when from select, I just select it out for you can proofread better
                  ->select('match.*', DB::raw("CASE WHEN 
                                      competition_type IN ('ATP - SINGLES', 'WTA - SINGLES') then -1 
                                      ELSE competition_type END"));

Laravel按案例查询顺序不起作用

2 个答案: