增加数据库表的comment

database/migrations/2022_12_30_110019_create_product_related.php

@@ -14,6 +14,7 @@ return new class extends Migration
     public function up()
     {
         Schema::create('product_relations', function (Blueprint $table) {
+            $table->comment('相关商品表');
             $table->id();
             $table->unsignedInteger('product_id')->comment('商品 ID')->index('product_id');
             $table->unsignedInteger('relation_id')->comment('关联商品 ID')->index('relation_id');

database/migrations/2022_12_30_165725_guest_checkout.php

@@ -18,12 +18,12 @@ return new class extends Migration
         }
 
         Schema::table('carts', function (Blueprint $table) {
-            $table->string('session_id')->default('')->after('customer_id');
-            $table->json('guest_shipping_address')->nullable()->after('shipping_address_id');
-            $table->json('guest_payment_address')->nullable()->after('payment_address_id');
+            $table->string('session_id')->comment('当前用户会话 ID')->default('')->after('customer_id');
+            $table->json('guest_shipping_address')->comment('游客配送地址')->nullable()->after('shipping_address_id');
+            $table->json('guest_payment_address')->comment('游客发票地址')->nullable()->after('payment_address_id');
         });
         Schema::table('cart_products', function (Blueprint $table) {
-            $table->string('session_id')->default('')->after('customer_id');
+            $table->string('session_id')->comment('当前用户会话 ID')->default('')->after('customer_id');
         });
     }
 

database/migrations/2023_01_10_115702_add_sales2_product.php

@@ -18,7 +18,7 @@ return new class extends Migration
         }
 
         Schema::table('products', function (Blueprint $table) {
-            $table->integer('sales')->default(0)->after('tax_class_id');
+            $table->integer('sales')->comment('销量')->default(0)->after('tax_class_id');
         });
     }