我有3个与此相关的类:
Exhibitor
'- Bills
'- Tickets
票据和票证都使用SoftDeletes特性,在Exhibitor类上,我有这种关系:
public function tickets()
{
return $this->hasManyThrough(Ticket::class, Bill::class);
}
我需要获取所有票证,包括已删除的票证(withTrashed
),但这还需要包括所有已删除的帐单。问题是,withTrashed仅适用于票证模型,而不适用于账单。
此查询
$tickets = exhibitor()->tickets()->withTrashed()
->where('bills.updated_at', '>=', Carbon::parse($since))
->orderBy('tickets.id')
->get();
生成此SQL
select `tickets`.*, `bills`.`exhibitor_id` from `tickets`
inner join `bills` on `bills`.`id` = `tickets`.`bill_id`
where `bills`.`deleted_at` is null
and `bills`.`exhibitor_id` = ?
and `bills`.`updated_at` >= ?
order by `tickets`.`id` asc
我应该使用不带“ bills
。deleted_at
为空”的SQL,如下所示:
select `tickets`.*, `bills`.`exhibitor_id` from `tickets`
inner join `bills` on `bills`.`id` = `tickets`.`bill_id`
where `bills`.`exhibitor_id` = ?
and `bills`.`updated_at` >= ?
order by `tickets`.`id` asc
但是我看不到可以为Bill模型设置withTrashed()的任何选项。我认为应该可以在hasManyThrough方法上设置回调查询,但是根据API,对此不提供任何支持。这似乎很简单,我感觉自己正在忽略某些东西,但我找不到它...
答案 0 :(得分:2)
目前无法实现:https://github.com/laravel/framework/issues/23039
如果您不介意安装外部软件包,则可以使用我创建的该软件包: https://github.com/staudenmeir/eloquent-has-many-deep
class Exhibitor extends Model
{
use \Staudenmeir\EloquentHasManyDeep\HasRelationships;
public function tickets()
{
return $this->hasManyDeep(Ticket::class, [Bill::class])
->withTrashed('bills.deleted_at');
}
}
答案 1 :(得分:0)
由于查询变得有点复杂,因此我将在票证模型上定义范围。
public function scopeBillsSince($query, $since)
return $query->whereHas('bills', function ($query2) use ($since) {
return $query2->withThrashed()->where('updated_at', '>=', Carbon::parse($since))
});
}
现在使用该范围,您可以像下面这样查询票证:
$tickets = exhibitor()->tickets()->withTrashed()->billsSince($since);