laravel method useful class model

    public function field()
    {
        return $this->belongsTo(HrmAuthFieldsModel::class, 'filed_id', 'id');
    }

    public function children()
    {
        return $this->hasMany(HrmAuthFuncFieldsModel::class, 'father_id');
    }

    public function getIsEmptyAttribute()
    {
        if (count($this->children) > 0) {
            return false;
        }

        return true;
    }

    public function scopeValid($query)
    {
        $query->where('hrm_auth_func_fields.status', self::STATUS_VALID);
    }

1. The method for obtaining properties

2. getIsEmptyAttirbute()

3. scopeValid()