Add singleton_temp column, update values, change singleton column, dr…

…op singleton_temp.

database/migrations/2025_01_02_185356_fix_killmail_items_table.php

@@ -0,0 +1,33 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+use Illuminate\Support\Facades\DB;
+
+return new class extends Migration
+{
+    /**
+     * Run the migrations.
+     */
+    public function up(): void
+    {
+
+        Schema::table('killmail_items', function (Blueprint $table) {
+            $table->integer('singleton_temp')->default(0);
+        });
+
+        DB::table('killmail_items')->where('singleton', true)->update(['singleton_temp' => 1]);
+
+        Schema::table('killmail_items', function (Blueprint $table) {
+            $table->integer('singleton')->default(0)->change();
+        });
+
+        DB::table('killmail_items')->where('singleton_temp', 1)->update(['singleton' => 1]);
+
+        Schema::table('killmail_items', function (Blueprint $table) {
+            $table->dropColumn('singleton_temp');
+        });
+
+    }
+};