雄辩的加入-在哪里关闭

Question

Is there any way to use closure for where in join clause in Eloquent?

What I'm trying to do is:

 $model = $model->leftJoin('history', function ($join) {
                $join->on('history.record_id', '=', 'work_order.work_order_id');
                $join->where('history.tablename', '=', 'test');
                $join->where('history.columnname', '=', 'column');

                $join->where(function ($q) {
                    $q->where('history.value_from', '=', '0')
                        ->orWhere('history.value_from', '=', '');
                });

                $join->where('history.value_to', '>', '0');
            });

but obviously the part:

$join->where(function ($q) {
     $q->where('history.value_from', '=', '0')
       ->orWhere('history.value_from', '=', '');
});

doesn't work because JoinClause doesn't support closure for where

Answer 1

The method you are looking for is called whereNested and is available from the Illumintate\\Database\\Query\\Builder class.

Unfortunately, the $join parameter passed to the join closure is of type Illumintate\\Database\\Query\\JoinClause which only has 4 methods for handling where statements for the join where , orWhere , whereNull and whereNotNull .

To make this work you'll need to resort to using DB::raw . This should work:

$model = $model->leftJoin('history', function ($join) {
                $join->on('history.record_id', '=', 'work_order.work_order_id');
                $join->where('history.tablename', '=', 'test');
                $join->where('history.columnname', '=', 'column');

                $join->where(DB::raw('(`history`.`value_from` = 0 or `history`.`value_from` = "")'), '', '');

                $join->where('history.value_to', '>', '0');
            });