init backend presensi

app/Database/Migrations/2026-02-24-080000_AddDapodikIdToStudentsTable.php

@@ -0,0 +1,32 @@
+<?php
+
+namespace App\Database\Migrations;
+
+use CodeIgniter\Database\Migration;
+
+class AddDapodikIdToStudentsTable extends Migration
+{
+    public function up()
+    {
+        // Add dapodik_id column (nullable, unique) to students
+        $this->forge->addColumn('students', [
+            'dapodik_id' => [
+                'type'       => 'VARCHAR',
+                'constraint' => 64,
+                'null'       => true,
+                'after'      => 'id',
+            ],
+        ]);
+
+        // Add unique index on dapodik_id (for upsert)
+        $this->db->query('CREATE UNIQUE INDEX students_dapodik_id_unique ON ' . $this->db->prefixTable('students') . ' (dapodik_id)');
+    }
+
+    public function down()
+    {
+        // Drop unique index and column
+        $this->db->query('DROP INDEX students_dapodik_id_unique ON ' . $this->db->prefixTable('students'));
+        $this->forge->dropColumn('students', 'dapodik_id');
+    }
+}
+