HT_DASHBOARD/app/Models/Htpms/MstCustomer.php

<?php

namespace App\Models\Htpms;

use Illuminate\Database\Eloquent\Model;

class MstCustomer extends Model
{
    const COL_NAME_ID = 'id';
    const COL_NAME_CUSTOMER_ID = 'customer_id';
    const COL_NAME_CUSTOMER_NAME = 'customer_name';

    protected $connection = 'htpms';
    protected $table = 'mst_customer';
    protected $fillable = []; // 参照専用

    protected $visible = [
        self::COL_NAME_ID,
        self::COL_NAME_CUSTOMER_ID,
        self::COL_NAME_CUSTOMER_NAME,
    ];
}