计数约束不工作laravel雄辩的嵌套关系

Question

I'm trying to put count constraint on laravel eloquent nested relations, but it's not working as expected.

Here scenario is :fetch Hotels those have rooms which are available in date range

$hotels = Hotel::where('destination_id', $destinationId) - > with(['rooms' = > function ($query) use($totalNights, $check_in, $check_out) {
        $query - > with([
                        'dateWisePricing' = > function ($dateWisePricing) use($check_in, $check_out) {
                $dateWisePricing - > where('date', '>=', $check_in);
                $dateWisePricing - > where('date', '<', $check_out);
                $dateWisePricing - > orderBy('date');
                          }
                      ]);
        $query - > has('dateWisePricing', '>=', $totalNights);
                    }
                  ]) - > has('rooms.dateWisePricing') - > get();

here it's returning the rooms which are not avuable in date range ( ie dateWisepricing im empty collection)

any help please

Answer 1

It's better to use whereHas instead of only querying the with method. But the best option is to query it out with joins like this:

$hotels = Hotel::select('hotels.*')
    ->with(['rooms.dateWisePricing' => function ($dateWisePricing) {
        $dateWisePricing - > orderBy('date');
    }])
    ->join('rooms', 'rooms.hotel_id', '=', 'hotels.id')
    ->join('date_wise_pricings', 'date_wise_pricings.id', '=', 'rooms.date_wise_pricing_id')
    ->where('date_wise_pricings.date', '>=', $check_in)
    ->where('date_wise_pricings.date', '<', $check_out)
    ->where('destination_id', $destinationId)
    ->groupBy('hotels.id')
    ->get();

This approach will query out all not available record.

Attention

Metion that I use: hotels , rooms and date_wise_pricings table names but in fact I dont know how you call them.