baoshi-was/app/StationTaskMaterialBox.php

<?php

namespace App;

use Illuminate\Database\Eloquent\Relations\BelongsTo;
use Illuminate\Database\Eloquent\Relations\HasOne;
use Illuminate\Database\Eloquent\Relations\MorphOne;

use App\Traits\LogModelChanging;

class StationTaskMaterialBox extends Model
{
    use LogModelChanging;

    protected $fillable=['station_id','material_box_id','status'];

    function materialBox(): HasOne
    {
        return $this->hasOne(MaterialBox::class,"id","material_box_id");
    }
    function station(): BelongsTo
    {
        return $this->belongsTo(Station::class,"id","station_id");
    }
    function stationTaskBatch(): BelongsTo
    {
        return $this->belongsTo(StationTaskBatch::class,"id","station_id");
    }
    function stationTask(): MorphOne
    {
        return $this->morphOne(StationTask::class,'station_taskable');
    }
    function stationTaskCommodities(): HasOne
    {
        return $this->hasOne(StationTaskCommodity::class,"station_task_batch_id","station_task_batch_id")
        ->where('material_box_id',$this['material_box_id']);
    }
}