Question

让我们说我与这样的模型有关系

public function currentInvoices($time = 'current'){
        switch ($time) {
            case 'current':
                $start = Carbon::create()->startOfMonth()->format('Y-m-d H:i:s');
                $end = Carbon::create()->endOfMonth()->format('Y-m-d H:i:s');
            break;
            case 'lastMonth':
                $start = Carbon::create()->subMonth()->startOfMonth()->format('Y-m-d H:i:s');
                $end = Carbon::create()->subMonth()->endOfMonth()->format('Y-m-d H:i:s');
            break;
            default:
                $start = Carbon::create()->startOfMonth()->format('Y-m-d H:i:s');
                $end = Carbon::create()->endOfMonth()->format('Y-m-d H:i:s');
        }

        return $this->hasManyThrough(
            'App\Models\Invoices',
            'App\Models\Tenancies\Tenancies',
            'linked_tenant_id', // Foreign key on Tenancies table...
            'tenant_id', // Foreign key on invoices table...
            'id', // Local key on tenants table...
            'id' // Local key on tenancies table...
        )->where('invoices.start_date','>=',$start)->where('invoices.end_date','<=',$end);
    }

使用口才has时如何传递参数。例如，这就是我要实现的目标

$tenantCompany = $tenantCompany->has('currentInvoices','lastMonth');

是否可以将第二个参数传递给雄辩的has函数？如果没有关于如何实现此目标的建议？

Answer 1

您可以使用whereHas

$tenantCompany = $tenantCompany->whereHas('currentInvoices', function($query) use($start_date, $end_date {
    $query->where('start_date', '>=', $start_date)->where('end_date', '<=', $end_date);
})->get();

有关关系方法的更多信息：https://laravel.com/docs/5.6/eloquent-relationships

Answer 2

我更喜欢这样

public function invoices(){
        return $this->hasManyThrough(
            'App\Models\Invoices',
            'App\Models\Tenancies\Tenancies',
            'linked_tenant_id', // Foreign key on Tenancies table...
            'tenant_id', // Foreign key on invoices table...
            'id', // Local key on tenants table...
            'id' // Local key on tenancies table...
        );
}

public function currentInvoices(){
    $start = Carbon::create()->startOfMonth()->format('Y-m-d H:i:s');
    $end = Carbon::create()->endOfMonth()->format('Y-m-d H:i:s');

    return $this->invoices()->where('invoices.start_date','>=',$start)
                            ->where('invoices.end_date','<=',$end);
}

public function lastMonthInvoices(){
    $start = Carbon::create()->subMonth()->startOfMonth()->format('Y-m-d H:i:s');
    $end = Carbon::create()->subMonth()->endOfMonth()->format('Y-m-d H:i:s');

    return $this->invoices()->where('invoices.start_date','>=',$start)
                            ->where('invoices.end_date','<=',$end);
}

现在这样获取

$tenantCompany = $tenantCompany->has('lastMonthInvoices');

Laravel将其他参数传递给has

2 个答案: