diff --git a/beike/Models/Product.php b/beike/Models/Product.php
index 37fe4eaa..3f490053 100644
--- a/beike/Models/Product.php
+++ b/beike/Models/Product.php
@@ -22,6 +22,11 @@ class Product extends Base
         return $this->belongsToMany(Category::class, ProductCategory::class)->withTimestamps();
     }
 
+    public function productCategories()
+    {
+        return $this->hasMany(ProductCategory::class);
+    }
+
     public function description()
     {
         return $this->hasOne(ProductDescription::class)->where('locale', locale());
@@ -42,9 +47,9 @@ class Product extends Base
         return $this->hasOne(ProductSku::Class)->where('is_default', 1);
     }
 
-    public function manufacturer()
+    public function brand()
     {
-        return $this->hasOne(Brand::Class, 'id', 'manufacturer_id');
+        return $this->belongsTo(Brand::Class, 'brand_id', 'id');
     }
 
     public function getPriceFormattedAttribute(): string
diff --git a/database/seeders/DatabaseSeeder.php b/database/seeders/DatabaseSeeder.php
index 57b73b54..65bfb76c 100644
--- a/database/seeders/DatabaseSeeder.php
+++ b/database/seeders/DatabaseSeeder.php
@@ -2,6 +2,7 @@
 
 namespace Database\Seeders;
 
+use Beike\Models\Product;
 use Illuminate\Database\Seeder;
 
 class DatabaseSeeder extends Seeder
@@ -10,9 +11,34 @@ class DatabaseSeeder extends Seeder
      * Seed the application's database.
      *
      * @return void
+     * @throws \Throwable
      */
     public function run()
     {
         // \App\Models\User::factory(10)->create();
+        // $this->duplicate();
+    }
+
+    /**
+     * @throws \Throwable
+     */
+    private function duplicate(): void
+    {
+        $baseProduct = Product::with(['productCategories', 'descriptions', 'skus'])->findOrFail(2);
+        $newProduct = $baseProduct->replicate();
+        $newProduct->saveOrFail();
+        $newProductId = $newProduct->id;
+
+        if ($newProductId) {
+            $relations = $baseProduct->getRelations();
+            foreach ($relations as $name => $relation) {
+                dump($name);
+                foreach ($relation as $relationRecord) {
+                    $newRelationship = $relationRecord->replicate();
+                    $newRelationship->product_id = $newProductId;
+                    $newRelationship->push();
+                }
+            }
+        }
     }
 }