portal/app/Models/Package.php

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Relations\BelongsTo;
use Illuminate\Database\Eloquent\Relations\HasManyThrough;
use Illuminate\Database\Eloquent\Relations\HasOneThrough;
use Illuminate\Database\Eloquent\Relations\MorphTo;
use Illuminate\Database\Eloquent\SoftDeletes;
use Staudenmeir\EloquentHasManyDeep\HasOneDeep;
use Staudenmeir\EloquentHasManyDeep\HasRelationships;

class Package extends AbstractModel
{
    use HasRelationships;
    use SoftDeletes;

    protected $table = 'packages';

    /**
     * @return BelongsTo
     */
    public function packingList(): BelongsTo
    {
        return $this->belongsTo(PackingList::class, 'packing_list_id');
    }

    /**
     * @return HasManyThrough
     */
    public function shippingTransports(): hasManyThrough
    {
        return $this->hasManyDeep(Transport::class, [PackingList::class, ContainerPackingList::class, Container::class], ['id', 'packing_list_id', 'id', ['owner_type', 'owner_id']], ['packing_list_id', 'id', 'container_id', null]);
    }

    /**
     * @return HasManyThrough
     */
    public function shippingSchedules(): hasManyThrough
    {
        return $this->hasManyDeep(Schedule::class, [PackingList::class, ContainerPackingList::class, Container::class, Transport::class], ['id', 'packing_list_id', 'id', ['owner_type', 'owner_id'], ['owner_type', 'owner_id']], ['packing_list_id', 'id', 'container_id', null, null]);
    }

    /**
     * @return HasManyThrough
     */
    public function deliveryTransports(): hasManyThrough
    {
        return $this->hasManyDeep(Transport::class, [PackingList::class], ['id', ['owner_type', 'owner_id']], ['packing_list_id', null]);
    }

    /**
     * @return HasManyThrough
     */
    public function deliverySchedules(): hasManyThrough
    {
        return $this->hasManyDeep(Schedule::class, [PackingList::class, Transport::class], ['id', ['owner_type', 'owner_id'], ['owner_type', 'owner_id']], ['packing_list_id', null, null]);
    }

    /**
     * @return hasOneDeep
     */
    public function container(): hasOneDeep
    {
        return $this->hasOneDeep(Container::class, [PackingList::class, ContainerPackingList::class], ['id', 'packing_list_id', 'id'], ['packing_list_id', 'id', 'container_id']);
    }

    /**
     * @return hasOneDeep
     */
    public function transport(): hasOneDeep
    {
        return $this->hasOneDeep(Transport::class, [PackingList::class], ['id', ['owner_type', 'owner_id']], ['packing_list_id', null]);
    }

}