jandl-taskmanager-app/be/app/Models/SubTask.php

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;

class SubTask extends Model
{
    use HasFactory;

    public $timestamps = true;
    public $guarded = ['id'];

    public function mastertask()
    {
        return $this->belongsTo(MasterTask::class, 'master_task_id');
    }

    public function user()
    {
        return $this->belongsTo(User::class);
    }

    public function timeblocks()
    {
        return $this->hasMany(Timeblock::class);
    }

    public function timesheets()
    {
        return $this->hasMany(Timesheet::class);
    }

    public function attachments()
    {
        return $this->hasMany(Attachment::class);
    }
}