{"id":23872,"date":"2024-11-21T11:52:53","date_gmt":"2024-11-21T03:52:53","guid":{"rendered":"https:\/\/fwq.ai\/blog\/23872\/"},"modified":"2024-11-21T11:52:53","modified_gmt":"2024-11-21T03:52:53","slug":"yii%e6%a1%86%e6%9e%b6%e4%b8%ad%e7%9a%84%e6%a8%a1%e5%9e%8b%e5%85%b3%e7%b3%bb%ef%bc%9a%e5%ae%9e%e7%8e%b0%e6%95%b0%e6%8d%ae%e5%85%b3%e8%81%94","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/23872\/","title":{"rendered":"Yii\u6846\u67b6\u4e2d\u7684\u6a21\u578b\u5173\u7cfb\uff1a\u5b9e\u73b0\u6570\u636e\u5173\u8054"},"content":{"rendered":"

\u5728yii\u6846\u67b6\u4e2d\uff0c\u6a21\u578b\u5173\u7cfb\u662f\u4e00\u4e2a\u975e\u5e38\u91cd\u8981\u7684\u6982\u5ff5\uff0c\u7528\u4e8e\u5b9e\u73b0\u591a\u4e2a\u6570\u636e\u8868\u4e4b\u95f4\u7684\u6570\u636e\u5173\u8054\u3002\u901a\u8fc7\u5b9a\u4e49\u5173\u8054\u5173\u7cfb\uff0c\u53ef\u4ee5\u4f7f\u5f97\u5728\u67e5\u8be2\u6570\u636e\u65f6\uff0c\u53ef\u4ee5\u76f4\u63a5\u83b7\u53d6\u5230\u76f8\u5173\u8054\u7684\u6570\u636e\uff0c\u4ece\u800c\u5927\u5927\u964d\u4f4e\u67e5\u8be2\u590d\u6742\u5ea6\uff0c\u63d0\u9ad8\u6570\u636e\u67e5\u8be2\u6548\u7387\u3002\u672c\u6587\u5c06\u8be6\u7ec6\u4ecb\u7ecdyii\u6846\u67b6\u4e2d\u7684\u6a21\u578b\u5173\u7cfb\uff0c\u5305\u62ec\u5982\u4f55\u5b9a\u4e49\u5173\u8054\u5173\u7cfb\u3001\u4e0d\u540c\u7c7b\u578b\u7684\u5173\u8054\u5173\u7cfb\u4ee5\u53ca\u5982\u4f55\u4f7f\u7528\u5173\u8054\u5173\u7cfb\u67e5\u8be2\u6570\u636e\u3002<\/p>\n

\u4e00\u3001\u5b9a\u4e49\u5173\u8054\u5173\u7cfb<\/p>\n

\u5728Yii\u6846\u67b6\u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7\u5728\u6a21\u578b\u7c7b\u4e2d\u5b9a\u4e49\u5173\u8054\u5173\u7cfb\u6765\u5b9e\u73b0\u6570\u636e\u8868\u4e4b\u95f4\u7684\u6570\u636e\u5173\u8054\u3002\u5177\u4f53\u6765\u8bf4\uff0c\u5c31\u662f\u5728\u6a21\u578b\u7c7b\u4e2d\u5b9a\u4e49\u4e00\u4e2a\u6216\u591a\u4e2apublic\u65b9\u6cd5\uff0c\u8fd9\u4e9b\u65b9\u6cd5\u901a\u8fc7\u8c03\u7528Yii\u6846\u67b6\u63d0\u4f9b\u7684\u4e00\u7cfb\u5217\u5173\u8054\u65b9\u6cd5\uff0c\u6765\u63cf\u8ff0\u8be5\u6570\u636e\u8868\u548c\u5176\u4ed6\u6570\u636e\u8868\u4e4b\u95f4\u7684\u5173\u8054\u5173\u7cfb\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u4f8b\u5b50\uff1a<\/p>\n

class Order extends ActiveRecord\n{\n    public function getCustomer()\n    {\n        return $this-&gt;hasOne(Customer::className(), ['id' =&gt; 'customer_id']);\n    }\n}<\/pre>\n
  \u767b\u5f55\u540e\u590d\u5236    \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
\u5728\u4e0a\u9762\u7684\u4f8b\u5b50\u4e2d\uff0c\u6211\u4eec\u5b9a\u4e49\u4e86\u4e00\u4e2a\u5173\u8054\u65b9\u6cd5getCustomer()\uff0c\u7528\u6765\u63cf\u8ff0\u8ba2\u5355\u8868\uff08Order\uff09\u548c\u987e\u5ba2\u8868\uff08Customer\uff09\u4e4b\u95f4\u7684\u5173\u8054\u5173\u7cfb\u3002\u5177\u4f53\u6765\u8bf4\uff0c\u6211\u4eec\u4f7f\u7528\u4e86Yii\u6846\u67b6\u63d0\u4f9b\u7684hasOne\u65b9\u6cd5\uff0c\u5b83\u8868\u793a\u5355\u5411\u7684\u4e00\u5bf9\u4e00\u5173\u8054\u5173\u7cfb\uff0c\u5373\u4e00\u4e2a\u8ba2\u5355\u53ea\u6709\u4e00\u4e2a\u987e\u5ba2\u3002\u5176\u4e2d\uff0c\u7b2c\u4e00\u4e2a\u53c2\u6570\u6307\u5b9a\u4e86\u5173\u8054\u7684\u6a21\u578b\u7c7b\u540d\uff0c\u7b2c\u4e8c\u4e2a\u53c2\u6570\u6307\u5b9a\u4e86\u5173\u8054\u7684\u5916\u952e\u548c\u4e3b\u952e\u4e4b\u95f4\u7684\u5bf9\u5e94\u5173\u7cfb\u3002\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u8ba2\u5355\u8868\u4e2d\u7684customer_id\u5b57\u6bb5\u5bf9\u5e94\u7740\u987e\u5ba2\u8868\u4e2d\u7684id\u5b57\u6bb5\u3002<\/p>\n
\u4e8c\u3001\u4e0d\u540c\u7c7b\u578b\u7684\u5173\u8054\u5173\u7cfb<\/p>\n
\u9664\u4e86hasOne\u65b9\u6cd5\uff0cYii\u6846\u67b6\u8fd8\u63d0\u4f9b\u4e86\u5176\u4ed6\u51e0\u79cd\u7c7b\u578b\u7684\u5173\u8054\u5173\u7cfb\uff0c\u7528\u6765\u5b9e\u73b0\u4e0d\u540c\u7684\u6570\u636e\u5173\u8054\u65b9\u5f0f\u3002\u4ee5\u4e0b\u662f\u5e38\u7528\u7684\u51e0\u79cd\u7c7b\u578b\uff1a<\/p>\n
    \n
  1. \u4e00\u5bf9\u591a\u5173\u8054\uff08hasMany\uff09<\/li>\n<\/ol>\n
    \u4e00\u5bf9\u591a\u5173\u8054\u8868\u793a\u4e00\u4e2a\u6a21\u578b\u7c7b\u5173\u8054\u591a\u4e2a\u76f8\u540c\u7c7b\u578b\u7684\u6a21\u578b\u7c7b\u3002\u5728\u5173\u8054\u65b9\u6cd5\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528hasMany\u65b9\u6cd5\u6765\u5b9a\u4e49\u3002<\/p>\n
    class Order extends ActiveRecord\n{\n    public function getOrderItems()\n    {\n        return $this-&gt;hasMany(OrderItem::className(), ['order_id' =&gt; 'id']);\n    }\n}<\/pre>\n
      \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
    \u5728\u4e0a\u8ff0\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u6307\u5b9a\u4e86\u4e00\u4e2aOrder\u6a21\u578b\u7c7b\u4e2d\u5bf9\u5e94\u591a\u4e2aOrderItem\u6a21\u578b\u7c7b\u7684\u5173\u8054\u5173\u7cfb\uff0c\u901a\u8fc7hasMany\u65b9\u6cd5\u5b9e\u73b0\u3002\u5176\u4e2d\uff0c\u7b2c\u4e00\u4e2a\u53c2\u6570\u6307\u5b9a\u4e86\u5173\u8054\u7684\u6a21\u578b\u7c7b\u540d\uff0c\u7b2c\u4e8c\u4e2a\u53c2\u6570\u6307\u5b9a\u4e86\u5173\u8054\u7684\u5916\u952e\u548c\u4e3b\u952e\u4e4b\u95f4\u7684\u5bf9\u5e94\u5173\u7cfb\u3002\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u8ba2\u5355\u8868\u4e2d\u7684id\u5b57\u6bb5\u5bf9\u5e94\u7740\u8ba2\u5355\u9879\u8868\u4e2d\u7684order_id\u5b57\u6bb5\u3002<\/p>\n
      \n
    1. \u5df2\u6709\u591a\u4e2a\u5173\u8054\u7684\u4e00\u5bf9\u591a\u5173\u8054\uff08hasMany via\uff09<\/li>\n<\/ol>\n
      \u6b64\u7c7b\u578b\u7684\u5173\u8054\u8868\u793a\u4e24\u4e2a\u6a21\u578b\u7c7b\u4e4b\u95f4\u5b58\u5728\u4e2d\u95f4\u5173\u8054\u8868\uff0c\u5e76\u4e14\u6bcf\u4e2a\u6a21\u578b\u7c7b\u90fd\u6709\u591a\u4e2a\u548c\u4e2d\u95f4\u5173\u8054\u8868\u5173\u8054\u7684\u8bb0\u5f55\u3002\u5728\u5173\u8054\u65b9\u6cd5\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528hasMany\u65b9\u6cd5\u6765\u5b9a\u4e49\u3002<\/p>\n
      class Order extends ActiveRecord\n{\n    public function getOrderItems()\n    {\n        return $this-&gt;hasMany(OrderItem::className(), ['order_id' =&gt; 'id']);\n    }\n\n    public function getProducts()\n    {\n        return $this-&gt;hasMany(Product::className(), ['id' =&gt; 'product_id'])\n            -&gt;via('orderItems');\n    }\n}<\/pre>\n
        \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
      \u5728\u4e0a\u8ff0\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u6307\u5b9a\u4e86\u4e00\u4e2aOrder\u6a21\u578b\u7c7b\u4e2d\u5bf9\u5e94\u591a\u4e2aProduct\u6a21\u578b\u7c7b\u7684\u5173\u8054\u5173\u7cfb\uff0c\u901a\u8fc7hasMany\u65b9\u6cd5\u5b9e\u73b0\u3002\u5176\u4e2d\uff0c\u7b2c\u4e00\u4e2a\u53c2\u6570\u6307\u5b9a\u4e86\u5173\u8054\u7684\u6a21\u578b\u7c7b\u540d\uff0c\u7b2c\u4e8c\u4e2a\u53c2\u6570\u6307\u5b9a\u4e86\u5173\u8054\u7684\u5916\u952e\u548c\u4e3b\u952e\u4e4b\u95f4\u7684\u5bf9\u5e94\u5173\u7cfb\u3002\u800c\u901a\u8fc7\u8c03\u7528via(‘orderItems’)\u65b9\u6cd5\uff0c\u6211\u4eec\u6307\u5b9a\u4e86\u5173\u8054\u4e2d\u9700\u8981\u4f7f\u7528\u4e2d\u95f4\u5173\u8054\u8868OrderItem\uff0c\u800c\u4e0d\u662f\u76f4\u63a5\u4f7f\u7528\u8ba2\u5355\u8868\uff08Order\uff09\u548c\u4ea7\u54c1\u8868\uff08Product\uff09\u4e4b\u95f4\u7684\u5173\u8054\u3002<\/p>\n
        \n
      1. \u4e00\u5bf9\u4e00\u5173\u8054\uff08hasOne\uff09<\/li>\n<\/ol>\n
        \u4e00\u5bf9\u4e00\u5173\u8054\u8868\u793a\u4e24\u4e2a\u6a21\u578b\u7c7b\u4e4b\u95f4\u5b58\u5728\u5355\u5411\u7684\u4e00\u5bf9\u4e00\u5173\u8054\u5173\u7cfb\u3002\u5728\u5173\u8054\u65b9\u6cd5\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528hasOne\u65b9\u6cd5\u6765\u5b9a\u4e49\u3002<\/p>\n
        class Order extends ActiveRecord\n{\n    public function getCustomer()\n    {\n        return $this-&gt;hasOne(Customer::className(), ['id' =&gt; 'customer_id']);\n    }\n}<\/pre>\n
          \u767b\u5f55\u540e\u590d\u5236    \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
        \u5728\u4e0a\u8ff0\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u6307\u5b9a\u4e86\u4e00\u4e2aOrder\u6a21\u578b\u7c7b\u4e2d\u5bf9\u5e94\u4e00\u4e2aCustomer\u6a21\u578b\u7c7b\u7684\u5173\u8054\u5173\u7cfb\uff0c\u901a\u8fc7hasOne\u65b9\u6cd5\u5b9e\u73b0\u3002\u5176\u4e2d\uff0c\u7b2c\u4e00\u4e2a\u53c2\u6570\u6307\u5b9a\u4e86\u5173\u8054\u7684\u6a21\u578b\u7c7b\u540d\uff0c\u7b2c\u4e8c\u4e2a\u53c2\u6570\u6307\u5b9a\u4e86\u5173\u8054\u7684\u5916\u952e\u548c\u4e3b\u952e\u4e4b\u95f4\u7684\u5bf9\u5e94\u5173\u7cfb\u3002<\/p>\n
          \n
        1. \u591a\u5bf9\u591a\u5173\u8054\uff08hasMany\uff09<\/li>\n<\/ol>\n
          \u591a\u5bf9\u591a\u5173\u8054\u8868\u793a\u4e24\u4e2a\u6a21\u578b\u7c7b\u4e4b\u95f4\u5b58\u5728\u53cc\u5411\u7684\u591a\u5bf9\u591a\u5173\u8054\u5173\u7cfb\u3002\u5728\u5173\u8054\u65b9\u6cd5\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528hasMany\u65b9\u6cd5\u6765\u5b9a\u4e49\u3002<\/p>\n
          class Order extends ActiveRecord\n{\n    public function getProducts()\n    {\n        return $this-&gt;hasMany(Product::className(), ['id' =&gt; 'product_id'])\n            -&gt;viaTable('order_item', ['order_id' =&gt; 'id']);\n    }\n}<\/pre>\n
            \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
          \u5728\u4e0a\u8ff0\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u6307\u5b9a\u4e86\u4e00\u4e2aOrder\u6a21\u578b\u7c7b\u4e2d\u5bf9\u5e94\u591a\u4e2aProduct\u6a21\u578b\u7c7b\u7684\u5173\u8054\u5173\u7cfb\uff0c\u901a\u8fc7hasMany\u65b9\u6cd5\u5b9e\u73b0\u3002\u5176\u4e2d\uff0c\u7b2c\u4e00\u4e2a\u53c2\u6570\u6307\u5b9a\u4e86\u5173\u8054\u7684\u6a21\u578b\u7c7b\u540d\uff0c\u7b2c\u4e8c\u4e2a\u53c2\u6570\u6307\u5b9a\u4e86\u5173\u8054\u7684\u5916\u952e\u548c\u4e3b\u952e\u4e4b\u95f4\u7684\u5bf9\u5e94\u5173\u7cfb\u3002\u800c\u901a\u8fc7\u8c03\u7528viaTable(‘order_item’, [‘order_id’ => ‘id’])\u65b9\u6cd5\uff0c\u6211\u4eec\u6307\u5b9a\u4e86\u5173\u8054\u4e2d\u9700\u8981\u4f7f\u7528\u4e2d\u95f4\u5173\u8054\u8868order_item\u3002<\/p>\n
          \u4e09\u3001\u4f7f\u7528\u5173\u8054\u5173\u7cfb\u67e5\u8be2\u6570\u636e<\/p>\n
          \u901a\u8fc7\u5b9a\u4e49\u5173\u8054\u5173\u7cfb\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528Yii\u6846\u67b6\u63d0\u4f9b\u7684ActiveRecord\u65b9\u6cd5\u6765\u5b8c\u6210\u76f8\u5e94\u7684\u6570\u636e\u67e5\u8be2\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u4f8b\u5b50\uff1a<\/p>\n
          $order = Order::findOne(1);\n$customer = $order-&gt;customer;<\/pre>\n
            \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
          \u5728\u4e0a\u8ff0\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u9996\u5148\u4f7f\u7528findOne\u65b9\u6cd5\u67e5\u8be2id\u4e3a1\u7684\u8ba2\u5355\u8bb0\u5f55\uff0c\u7136\u540e\u901a\u8fc7\u5173\u8054\u65b9\u6cd5\u83b7\u53d6\u8be5\u8ba2\u5355\u5bf9\u5e94\u7684\u987e\u5ba2\u4fe1\u606f\u3002<\/p>\n
          \u9664\u4e86\u76f4\u63a5\u8bbf\u95ee\u5173\u8054\u65b9\u6cd5\uff0c\u6211\u4eec\u4e5f\u53ef\u4ee5\u4f7f\u7528with\u65b9\u6cd5\u6765\u9884\u52a0\u8f7d\u5173\u8054\u6570\u636e\uff0c\u4ece\u800c\u51cf\u5c11\u591a\u6b21\u67e5\u8be2\u6570\u636e\u5e93\u7684\u9700\u6c42\u3002<\/p>\n
          $orders = Order::find()-&gt;with('customer')-&gt;all();\nforeach ($orders as $order) {\n    echo $order-&gt;customer-&gt;name;\n}<\/pre>\n
            \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
          \u5728\u4e0a\u8ff0\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u9996\u5148\u4f7f\u7528find\u65b9\u6cd5\u67e5\u8be2\u6240\u6709\u8ba2\u5355\u8bb0\u5f55\uff0c\u5e76\u901a\u8fc7\u8c03\u7528with(‘customer’)\u65b9\u6cd5\u6765\u9884\u52a0\u8f7d\u8ba2\u5355\u5173\u8054\u7684\u987e\u5ba2\u4fe1\u606f\u3002\u8fd9\u6837\uff0c\u5728\u540e\u7eed\u7684foreach\u5faa\u73af\u4e2d\uff0c\u6bcf\u6b21\u8bbf\u95ee\u8ba2\u5355\u7684\u987e\u5ba2\u4fe1\u606f\u65f6\uff0c\u5c31\u53ef\u4ee5\u76f4\u63a5\u4ece\u5185\u5b58\u4e2d\u83b7\u53d6\uff0c\u800c\u4e0d\u9700\u8981\u518d\u6b21\u67e5\u8be2\u6570\u636e\u5e93\u3002<\/p>\n
          \u603b\u7ed3<\/p>\n
          \u672c\u6587\u4e3b\u8981\u4ecb\u7ecd\u4e86Yii\u6846\u67b6\u4e2d\u7684\u6a21\u578b\u5173\u7cfb\uff0c\u5305\u62ec\u5982\u4f55\u5b9a\u4e49\u5173\u8054\u5173\u7cfb\u3001\u4e0d\u540c\u7c7b\u578b\u7684\u5173\u8054\u5173\u7cfb\u4ee5\u53ca\u5982\u4f55\u4f7f\u7528\u5173\u8054\u5173\u7cfb\u67e5\u8be2\u6570\u636e\u3002\u901a\u8fc7\u5408\u7406\u4f7f\u7528\u6a21\u578b\u5173\u7cfb\uff0c\u6211\u4eec\u53ef\u4ee5\u5927\u5927\u63d0\u9ad8\u6570\u636e\u67e5\u8be2\u6548\u7387\uff0c\u4f7f\u5f97\u7a0b\u5e8f\u4ee3\u7801\u66f4\u52a0\u7b80\u6d01\u6613\u8bfb\u3002<\/p>\n
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          \u5728yii\u6846\u67b6\u4e2d\uff0c\u6a21\u578b\u5173\u7cfb\u662f\u4e00\u4e2a\u975e\u5e38\u91cd\u8981\u7684\u6982\u5ff5\uff0c\u7528\u4e8e\u5b9e\u73b0\u591a\u4e2a\u6570\u636e\u8868\u4e4b\u95f4\u7684\u6570\u636e\u5173\u8054\u3002\u901a\u8fc7\u5b9a\u4e49\u5173\u8054\u5173\u7cfb\uff0c\u53ef\u4ee5\u4f7f\u5f97\u5728\u67e5\u8be2\u6570\u636e\u65f6\uff0c\u53ef\u4ee5\u76f4\u63a5\u83b7\u53d6\u5230\u76f8\u5173\u8054\u7684\u6570\u636e\uff0c\u4ece\u800c\u5927\u5927\u964d\u4f4e\u67e5\u8be2\u590d\u6742\u5ea6\uff0c\u63d0\u9ad8\u6570\u636e\u67e5\u8be2\u6548\u7387\u3002\u672c\u6587\u5c06\u8be6\u7ec6\u4ecb\u7ecdyii\u6846\u67b6\u4e2d\u7684\u6a21\u578b\u5173\u7cfb\uff0c\u5305\u62ec\u5982\u4f55\u5b9a\u4e49\u5173\u8054\u5173\u7cfb\u3001\u4e0d\u540c\u7c7b\u578b\u7684\u5173\u8054\u5173\u7cfb\u4ee5\u53ca\u5982\u4f55\u4f7f\u7528\u5173\u8054\u5173\u7cfb\u67e5\u8be2\u6570\u636e\u3002 \u4e00\u3001\u5b9a\u4e49\u5173\u8054\u5173\u7cfb \u5728Yii\u6846\u67b6\u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7\u5728\u6a21\u578b\u7c7b\u4e2d\u5b9a\u4e49\u5173\u8054\u5173\u7cfb\u6765\u5b9e\u73b0\u6570\u636e\u8868\u4e4b\u95f4\u7684\u6570\u636e\u5173\u8054\u3002\u5177\u4f53\u6765\u8bf4\uff0c\u5c31\u662f\u5728\u6a21\u578b\u7c7b\u4e2d\u5b9a\u4e49\u4e00\u4e2a\u6216\u591a\u4e2apublic\u65b9\u6cd5\uff0c\u8fd9\u4e9b\u65b9\u6cd5\u901a\u8fc7\u8c03\u7528Yii\u6846\u67b6\u63d0\u4f9b\u7684\u4e00\u7cfb\u5217\u5173\u8054\u65b9\u6cd5\uff0c\u6765\u63cf\u8ff0\u8be5\u6570\u636e\u8868\u548c\u5176\u4ed6\u6570\u636e\u8868\u4e4b\u95f4\u7684\u5173\u8054\u5173\u7cfb\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u4f8b\u5b50\uff1a class Order extends ActiveRecord { public function getCustomer() { return $this-&gt;hasOne(Customer::className(), [‘id’ =&gt; ‘customer_id’]); } } \u767b\u5f55\u540e\u590d\u5236 \u767b\u5f55\u540e\u590d\u5236 \u5728\u4e0a\u9762\u7684\u4f8b\u5b50\u4e2d\uff0c\u6211\u4eec\u5b9a\u4e49\u4e86\u4e00\u4e2a\u5173\u8054\u65b9\u6cd5getCustomer()\uff0c\u7528\u6765\u63cf\u8ff0\u8ba2\u5355\u8868\uff08Order\uff09\u548c\u987e\u5ba2\u8868\uff08Customer\uff09\u4e4b\u95f4\u7684\u5173\u8054\u5173\u7cfb\u3002\u5177\u4f53\u6765\u8bf4\uff0c\u6211\u4eec\u4f7f\u7528\u4e86Yii\u6846\u67b6\u63d0\u4f9b\u7684hasOne\u65b9\u6cd5\uff0c\u5b83\u8868\u793a\u5355\u5411\u7684\u4e00\u5bf9\u4e00\u5173\u8054\u5173\u7cfb\uff0c\u5373\u4e00\u4e2a\u8ba2\u5355\u53ea\u6709\u4e00\u4e2a\u987e\u5ba2\u3002\u5176\u4e2d\uff0c\u7b2c\u4e00\u4e2a\u53c2\u6570\u6307\u5b9a\u4e86\u5173\u8054\u7684\u6a21\u578b\u7c7b\u540d\uff0c\u7b2c\u4e8c\u4e2a\u53c2\u6570\u6307\u5b9a\u4e86\u5173\u8054\u7684\u5916\u952e\u548c\u4e3b\u952e\u4e4b\u95f4\u7684\u5bf9\u5e94\u5173\u7cfb\u3002\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u8ba2\u5355\u8868\u4e2d\u7684customer_id\u5b57\u6bb5\u5bf9\u5e94\u7740\u987e\u5ba2\u8868\u4e2d\u7684id\u5b57\u6bb5\u3002 \u4e8c\u3001\u4e0d\u540c\u7c7b\u578b\u7684\u5173\u8054\u5173\u7cfb \u9664\u4e86hasOne\u65b9\u6cd5\uff0cYii\u6846\u67b6\u8fd8\u63d0\u4f9b\u4e86\u5176\u4ed6\u51e0\u79cd\u7c7b\u578b\u7684\u5173\u8054\u5173\u7cfb\uff0c\u7528\u6765\u5b9e\u73b0\u4e0d\u540c\u7684\u6570\u636e\u5173\u8054\u65b9\u5f0f\u3002\u4ee5\u4e0b\u662f\u5e38\u7528\u7684\u51e0\u79cd\u7c7b\u578b\uff1a \u4e00\u5bf9\u591a\u5173\u8054\uff08hasMany\uff09 \u4e00\u5bf9\u591a\u5173\u8054\u8868\u793a\u4e00\u4e2a\u6a21\u578b\u7c7b\u5173\u8054\u591a\u4e2a\u76f8\u540c\u7c7b\u578b\u7684\u6a21\u578b\u7c7b\u3002\u5728\u5173\u8054\u65b9\u6cd5\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528hasMany\u65b9\u6cd5\u6765\u5b9a\u4e49\u3002 class Order extends ActiveRecord { public function getOrderItems() { return $this-&gt;hasMany(OrderItem::className(), [‘order_id’ =&gt; ‘id’]); } } \u767b\u5f55\u540e\u590d\u5236 \u5728\u4e0a\u8ff0\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u6307\u5b9a\u4e86\u4e00\u4e2aOrder\u6a21\u578b\u7c7b\u4e2d\u5bf9\u5e94\u591a\u4e2aOrderItem\u6a21\u578b\u7c7b\u7684\u5173\u8054\u5173\u7cfb\uff0c\u901a\u8fc7hasMany\u65b9\u6cd5\u5b9e\u73b0\u3002\u5176\u4e2d\uff0c\u7b2c\u4e00\u4e2a\u53c2\u6570\u6307\u5b9a\u4e86\u5173\u8054\u7684\u6a21\u578b\u7c7b\u540d\uff0c\u7b2c\u4e8c\u4e2a\u53c2\u6570\u6307\u5b9a\u4e86\u5173\u8054\u7684\u5916\u952e\u548c\u4e3b\u952e\u4e4b\u95f4\u7684\u5bf9\u5e94\u5173\u7cfb\u3002\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u8ba2\u5355\u8868\u4e2d\u7684id\u5b57\u6bb5\u5bf9\u5e94\u7740\u8ba2\u5355\u9879\u8868\u4e2d\u7684order_id\u5b57\u6bb5\u3002 \u5df2\u6709\u591a\u4e2a\u5173\u8054\u7684\u4e00\u5bf9\u591a\u5173\u8054\uff08hasMany via\uff09 \u6b64\u7c7b\u578b\u7684\u5173\u8054\u8868\u793a\u4e24\u4e2a\u6a21\u578b\u7c7b\u4e4b\u95f4\u5b58\u5728\u4e2d\u95f4\u5173\u8054\u8868\uff0c\u5e76\u4e14\u6bcf\u4e2a\u6a21\u578b\u7c7b\u90fd\u6709\u591a\u4e2a\u548c\u4e2d\u95f4\u5173\u8054\u8868\u5173\u8054\u7684\u8bb0\u5f55\u3002\u5728\u5173\u8054\u65b9\u6cd5\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528hasMany\u65b9\u6cd5\u6765\u5b9a\u4e49\u3002 class Order extends ActiveRecord { public function getOrderItems() […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-23872","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/23872","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=23872"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/23872\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=23872"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=23872"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=23872"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}