wx.sstbc.com/app/Models/CourseContentEvaluationAsk.php

<?php

namespace App\Models;

class CourseContentEvaluationAsk extends SoftDeletesModel
{
    protected $casts = ['select_item' => 'json'];

    public function courseContent()
    {
        return $this->hasOne(CourseContent::class, 'id', 'course_content_id');
    }

}