doctor-appointment-system/app/Database/Migrations/2026-05-05-000001_PreventDuplicateAppointmentSlots.php
2026-05-08 12:22:08 +05:30

25 lines
588 B
PHP

<?php
namespace App\Database\Migrations;
use CodeIgniter\Database\Migration;
class PreventDuplicateAppointmentSlots extends Migration
{
public function up(): void
{
$db = \Config\Database::connect();
$db->query(
'ALTER TABLE `appointments` ADD UNIQUE KEY `appointments_doctor_slot_unique` (`doctor_id`, `appointment_date`, `appointment_time`)'
);
}
public function down(): void
{
$db = \Config\Database::connect();
$db->query('ALTER TABLE `appointments` DROP INDEX `appointments_doctor_slot_unique`');
}
}