feat: 产品

refactor: 产品详情页seo

app/index/model/ProductSkuModel.php

@@ -0,0 +1,33 @@
+<?php
+declare (strict_types = 1);
+
+namespace app\index\model;
+
+use app\common\model\ProductSkuBaseModel;
+
+/**
+ * 产品SKU模型
+ * @mixin \think\Model
+ */
+class ProductSkuModel extends ProductSkuBaseModel
+{
+    // json字段
+    protected $json = ['photo_album'];
+    protected $jsonAssoc = true;
+
+    // 关联sku属性
+    public function attr()
+    {
+        return $this->hasMany(ProductSkuAttrModel::class, 'sku_id', 'id');
+    }
+
+    // 所属产品范围查询
+    public function scopeByProductId($query, $product)
+    {
+        if (is_array($product)) {
+            $query->whereIn('product_id', $product);
+            return;
+        }
+        $query->where('product_id', '=', $product);
+    }
+}