DNM: possible automatic_expiry_backfill

database/migrations/2026_11_01_153231_automatic_expiry_backfill.php

@@ -0,0 +1,40 @@
+<?php
+
+use Carbon\CarbonImmutable;
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    /**
+     * Run the migrations.
+     */
+    public function up(): void
+    {
+        $timestamp = CarbonImmutable::now();
+        // Create an automatic expiry suspension for all Wikis that don't currently have one
+        DB::table('wikis')
+            ->leftJoin('wiki_suspensions', 'wikis.id', '=', 'wiki_suspensions.wiki_id')
+            ->whereNull('wiki_id')
+            ->orderBy('wikis.id')
+            ->select('wikis.id', 'wikis.created_at')
+            ->chunkById(100, fn ($wikis) => DB::table('policy_acceptances')->insert(
+                $wikis->map(fn ($wiki) => [
+                    'user_id' => $wiki->id,
+                    'accepted_at' => $wiki->created_at,
+                    'created_at' => $timestamp,
+                    'updated_at' => $timestamp,
+                ])->all()
+            ),
+                'users.id', 'id');
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        throw new RuntimeException("The 'down' method is not supported");
+    }
+};