course_content_id)) { return []; } $course_content_id = explode(',', $this->course_content_id); return CourseContent::whereIn('id', $course_content_id)->get(); } public function course() { return $this->belongsTo(Course::class, 'course_id', 'id'); } public function courseContentEvaluationAsks() { return $this->hasMany(CourseContentEvaluationAsk::class, 'course_content_evaluation_id', 'id'); } public function courseContentEvaluationForms() { return $this->hasMany(CourseContentEvaluationForm::class, 'course_content_evaluation_id', 'id'); } }