Add UpdateWeightUnitToKg state and update default weight unit to 'kg' in product variants

Author: Huncsuga

packages/core/database/migrations/2025_12_14_215636_update_weight_unit_default_on_product_variants_table.php

@@ -1,7 +1,6 @@
 <?php
 
 use Illuminate\Database\Schema\Blueprint;
-use Illuminate\Support\Facades\DB;
 use Illuminate\Support\Facades\Schema;
 use Lunar\Base\Migration;
 
@@ -12,11 +11,6 @@ public function up(): void
         Schema::table($this->prefix . 'product_variants', function (Blueprint $table) {
             $table->string('weight_unit')->default('kg')->nullable()->change();
         });
-
-        DB::table($this->prefix . 'product_variants')
-            ->whereNull('weight_unit')
-            ->orWhere('weight_unit', 'mm')
-            ->update(['weight_unit' => 'kg']);
     }
 
     public function down(): void

packages/core/database/state/UpdateWeightUnitToKg.php

@@ -0,0 +1,39 @@
+<?php
+
+namespace Lunar\Database\State;
+
+use Illuminate\Support\Facades\DB;
+use Illuminate\Support\Facades\Schema;
+
+class UpdateWeightUnitToKg
+{
+    public function prepare()
+    {
+        //
+    }
+
+    public function run(): void
+    {
+        if (! $this->canRun()) {
+            return;
+        }
+
+        DB::table($this->table())
+            ->whereNull('weight_unit')
+            ->orWhere('weight_unit', 'mm')
+            ->update(['weight_unit' => 'kg']);
+    }
+
+    protected function canRun(): bool
+    {
+        return Schema::hasTable($this->table())
+            && Schema::hasColumn($this->table(), 'weight_unit');
+    }
+
+    protected function table(): string
+    {
+        $prefix = config('lunar.database.table_prefix');
+
+        return $prefix . 'product_variants';
+    }
+}

packages/core/src/LunarServiceProvider.php

@@ -56,6 +56,7 @@
 use Lunar\Database\State\EnsureMediaCollectionsAreRenamed;
 use Lunar\Database\State\MigrateCartOrderRelationship;
 use Lunar\Database\State\PopulateProductOptionLabelWithName;
+use Lunar\Database\State\UpdateWeightUnitToKg;
 use Lunar\Facades\Telemetry;
 use Lunar\Listeners\CartSessionAuthListener;
 use Lunar\Managers\CartSessionManager;
@@ -302,6 +303,7 @@ protected function registerStateListeners()
             MigrateCartOrderRelationship::class,
             ConvertTaxbreakdown::class,
             ConvertBackOrderPurchasability::class,
+            UpdateWeightUnitToKg::class,
         ];
 
         foreach ($states as $state) {