{"id":23847,"date":"2024-11-21T15:03:12","date_gmt":"2024-11-21T07:03:12","guid":{"rendered":"https:\/\/fwq.ai\/blog\/23847\/"},"modified":"2024-11-21T15:03:12","modified_gmt":"2024-11-21T07:03:12","slug":"yii%e6%a1%86%e6%9e%b6%e4%b8%ad%e7%9a%84%e6%95%b0%e6%8d%ae%e6%9f%a5%e8%af%a2%ef%bc%9a%e4%bc%98%e5%8c%96%e6%95%b0%e6%8d%ae%e8%ae%bf%e9%97%ae%e6%95%88%e7%8e%87","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/23847\/","title":{"rendered":"Yii\u6846\u67b6\u4e2d\u7684\u6570\u636e\u67e5\u8be2\uff1a\u4f18\u5316\u6570\u636e\u8bbf\u95ee\u6548\u7387"},"content":{"rendered":"

\u5728web\u5f00\u53d1\u4e2d\uff0c\u6570\u636e\u67e5\u8be2\u662f\u4e0d\u53ef\u6216\u7f3a\u7684\u4e00\u4e2a\u73af\u8282\u3002\u800c\u5bf9\u4e8eyii\u6846\u67b6\u6765\u8bf4\uff0c\u5176\u81ea\u5e26\u7684\u5bf9\u8c61\uff08active record\uff09\u5219\u4e3a\u6211\u4eec\u7684\u6570\u636e\u67e5\u8be2\u63d0\u4f9b\u4e86\u5f3a\u5927\u7684\u652f\u6301\u3002\u4f46\u662f\uff0c\u5728\u5904\u7406\u5927\u91cf\u6570\u636e\u67e5\u8be2\u65f6\uff0c\u6211\u4eec\u4e5f\u9700\u8981\u901a\u8fc7\u4e00\u4e9b\u4f18\u5316\u63aa\u65bd\u6765\u63d0\u5347\u6570\u636e\u8bbf\u95ee\u6548\u7387\u3002\u672c\u6587\u5c06\u91cd\u70b9\u4ecb\u7ecd\u5728yii\u6846\u67b6\u4e2d\u5982\u4f55\u4f18\u5316\u6570\u636e\u67e5\u8be2\u3002<\/p>\n

    \n
  1. \u61d2\u52a0\u8f7d\u76f8\u5173\u6570\u636e<\/li>\n<\/ol>\n

    \u901a\u8fc7\u4f7f\u7528\u201clazy loading\uff08\u61d2\u52a0\u8f7d\uff09\u201d\u7684\u65b9\u5f0f\uff0c\u6211\u4eec\u53ef\u4ee5\u8ba9Yii\u6846\u67b6\u5728\u9700\u8981\u8bbf\u95ee\u76f8\u5173\u6570\u636e\u65f6\u624d\u8fdb\u884c\u67e5\u8be2\uff0c\u4ece\u800c\u51cf\u5c11\u4e0d\u5fc5\u8981\u7684\u6570\u636e\u67e5\u8be2\u3002\u4f8b\u5982\uff0c\u5728\u67e5\u8be2\u7528\u6237\u4fe1\u606f\u65f6\uff0c\u6211\u4eec\u53ef\u4ee5\u5c06\u4e0e\u7528\u6237\u76f8\u5173\u7684\u8ba2\u5355\u4fe1\u606f\u8bbe\u5b9a\u4e3a\u201c\u5ef6\u8fdf\u52a0\u8f7d\u201d\uff0c\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n

    $user = User::findOne(1);\n\/\/ \u6b64\u65f6\u5e76\u672a\u67e5\u8be2\u4e0e\u7528\u6237\u76f8\u5173\u7684\u8ba2\u5355\u4fe1\u606f\n$orders = $user-&gt;getOrders()-&gt;all();\n\/\/ \u6b64\u65f6\u624d\u8fdb\u884c\u67e5\u8be2<\/pre>\n
     \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
      \n
    1. \u6279\u91cf\u67e5\u8be2\u6570\u636e<\/li>\n<\/ol>\n
      \u5728\u8fdb\u884c\u5927\u91cf\u6570\u636e\u67e5\u8be2\u65f6\uff0c\u6211\u4eec\u5efa\u8bae\u4f7f\u7528\u6279\u91cf\u67e5\u8be2\u6570\u636e\u7684\u65b9\u5f0f\uff0c\u800c\u4e0d\u662f\u5faa\u73af\u5355\u72ec\u67e5\u8be2\u6570\u636e\u3002\u4f8b\u5982\uff0c\u5728\u67e5\u8be2\u8ba2\u5355\u4fe1\u606f\u65f6\uff0c\u6211\u4eec\u53ef\u4ee5\u5c06\u9700\u8981\u67e5\u8be2\u7684\u8ba2\u5355ID\u96c6\u5408\u4f20\u9012\u5230IN\u6761\u4ef6\u4e2d\u8fdb\u884c\u67e5\u8be2\uff0c\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n
      $orderIds = [1, 2, 3, 4, 5];\n$orders = Order::find()-&gt;where(['in', 'id', $orderIds])-&gt;all();<\/pre>\n
       \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
        \n
      1. \u7f13\u5b58\u67e5\u8be2\u7ed3\u679c<\/li>\n<\/ol>\n
        \u4e3a\u4e86\u907f\u514d\u91cd\u590d\u67e5\u8be2\u540c\u4e00\u6570\u636e\uff0c\u6211\u4eec\u53ef\u4ee5\u5c06\u67e5\u8be2\u7ed3\u679c\u8fdb\u884c\u7f13\u5b58\u3002Yii\u6846\u67b6\u63d0\u4f9b\u4e86\u591a\u79cd\u7f13\u5b58\u7ec4\u4ef6\uff0c\u5305\u62ec\u57fa\u4e8e\u6587\u4ef6\u3001Memcache\u3001Redis\u7b49\u7f13\u5b58\u65b9\u5f0f\u3002\u4f8b\u5982\uff0c\u5728\u67e5\u8be2\u5546\u54c1\u4fe1\u606f\u65f6\uff0c\u6211\u4eec\u53ef\u4ee5\u5c06\u67e5\u8be2\u7ed3\u679c\u7f13\u5b5810\u5206\u949f\uff0c\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n
        $cacheKey = 'cache_key_' . $productId;\n$cacheDuration = 600; \/\/ \u7f13\u5b5810\u5206\u949f\n$product = Yii::$app-&gt;cache-&gt;getOrSet($cacheKey, function () use ($productId) {\n    return Product::findOne($productId);\n}, $cacheDuration);<\/pre>\n
         \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
          \n
        1. \u4f18\u5316\u67e5\u8be2\u8bed\u53e5<\/li>\n<\/ol>\n
          \u5728\u8fdb\u884c\u5927\u91cf\u6570\u636e\u67e5\u8be2\u65f6\uff0c\u6211\u4eec\u9700\u8981\u4f18\u5316\u67e5\u8be2\u8bed\u53e5\u6765\u63d0\u9ad8\u67e5\u8be2\u6548\u7387\u3002\u4f8b\u5982\uff0c\u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528\u7d22\u5f15\u3001\u51cf\u5c11\u4e0d\u5fc5\u8981\u7684\u67e5\u8be2\u5b57\u6bb5\uff08SELECT *\uff09\uff0c\u6216\u8005\u5c06\u591a\u4e2a\u67e5\u8be2\u5408\u5e76\u4e3a\u4e00\u4e2a\u67e5\u8be2\u6765\u4f18\u5316\u67e5\u8be2\u8bed\u53e5\u3002\u6b64\u5916\uff0c\u6211\u4eec\u8fd8\u53ef\u4ee5\u4f7f\u7528Yii\u6846\u67b6\u63d0\u4f9b\u7684\u67e5\u8be2\u65e5\u5fd7\u529f\u80fd\u6765\u8bb0\u5f55\u67e5\u8be2\u8bed\u53e5\u5e76\u8fdb\u884c\u5206\u6790\uff0c\u4ece\u800c\u66f4\u597d\u5730\u4f18\u5316\u67e5\u8be2\u8bed\u53e5\u3002<\/p>\n
          \u603b\u7ed3<\/p>\n
          \u5728\u672c\u6587\u4e2d\uff0c\u6211\u4eec\u4ecb\u7ecd\u4e86\u5728Yii\u6846\u67b6\u4e2d\u5982\u4f55\u4f18\u5316\u6570\u636e\u67e5\u8be2\uff0c\u5305\u62ec\u61d2\u52a0\u8f7d\u76f8\u5173\u6570\u636e\u3001\u6279\u91cf\u67e5\u8be2\u6570\u636e\u3001\u7f13\u5b58\u67e5\u8be2\u7ed3\u679c\u3001\u4ee5\u53ca\u4f18\u5316\u67e5\u8be2\u8bed\u53e5\u7b49\u65b9\u9762\u3002\u901a\u8fc7\u8fd9\u4e9b\u4f18\u5316\u63aa\u65bd\uff0c\u6211\u4eec\u53ef\u4ee5\u63d0\u9ad8\u6570\u636e\u67e5\u8be2\u6548\u7387\uff0c\u66f4\u597d\u5730\u6ee1\u8db3Web\u5e94\u7528\u7a0b\u5e8f\u7684\u9700\u6c42\u3002<\/p>\n
          \u4ee5\u4e0a\u5c31\u662fYii\u6846\u67b6\u4e2d\u7684\u6570\u636e\u67e5\u8be2\uff1a\u4f18\u5316\u6548\u7387\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
          \u5728web\u5f00\u53d1\u4e2d\uff0c\u6570\u636e\u67e5\u8be2\u662f\u4e0d\u53ef\u6216\u7f3a\u7684\u4e00\u4e2a\u73af\u8282\u3002\u800c\u5bf9\u4e8eyii\u6846\u67b6\u6765\u8bf4\uff0c\u5176\u81ea\u5e26\u7684\u5bf9\u8c61\uff08active record\uff09\u5219\u4e3a\u6211\u4eec\u7684\u6570\u636e\u67e5\u8be2\u63d0\u4f9b\u4e86\u5f3a\u5927\u7684\u652f\u6301\u3002\u4f46\u662f\uff0c\u5728\u5904\u7406\u5927\u91cf\u6570\u636e\u67e5\u8be2\u65f6\uff0c\u6211\u4eec\u4e5f\u9700\u8981\u901a\u8fc7\u4e00\u4e9b\u4f18\u5316\u63aa\u65bd\u6765\u63d0\u5347\u6570\u636e\u8bbf\u95ee\u6548\u7387\u3002\u672c\u6587\u5c06\u91cd\u70b9\u4ecb\u7ecd\u5728yii\u6846\u67b6\u4e2d\u5982\u4f55\u4f18\u5316\u6570\u636e\u67e5\u8be2\u3002 \u61d2\u52a0\u8f7d\u76f8\u5173\u6570\u636e \u901a\u8fc7\u4f7f\u7528\u201clazy loading\uff08\u61d2\u52a0\u8f7d\uff09\u201d\u7684\u65b9\u5f0f\uff0c\u6211\u4eec\u53ef\u4ee5\u8ba9Yii\u6846\u67b6\u5728\u9700\u8981\u8bbf\u95ee\u76f8\u5173\u6570\u636e\u65f6\u624d\u8fdb\u884c\u67e5\u8be2\uff0c\u4ece\u800c\u51cf\u5c11\u4e0d\u5fc5\u8981\u7684\u6570\u636e\u67e5\u8be2\u3002\u4f8b\u5982\uff0c\u5728\u67e5\u8be2\u7528\u6237\u4fe1\u606f\u65f6\uff0c\u6211\u4eec\u53ef\u4ee5\u5c06\u4e0e\u7528\u6237\u76f8\u5173\u7684\u8ba2\u5355\u4fe1\u606f\u8bbe\u5b9a\u4e3a\u201c\u5ef6\u8fdf\u52a0\u8f7d\u201d\uff0c\u5982\u4e0b\u6240\u793a\uff1a $user = User::findOne(1); \/\/ \u6b64\u65f6\u5e76\u672a\u67e5\u8be2\u4e0e\u7528\u6237\u76f8\u5173\u7684\u8ba2\u5355\u4fe1\u606f $orders = $user-&gt;getOrders()-&gt;all(); \/\/ \u6b64\u65f6\u624d\u8fdb\u884c\u67e5\u8be2 \u767b\u5f55\u540e\u590d\u5236 \u6279\u91cf\u67e5\u8be2\u6570\u636e \u5728\u8fdb\u884c\u5927\u91cf\u6570\u636e\u67e5\u8be2\u65f6\uff0c\u6211\u4eec\u5efa\u8bae\u4f7f\u7528\u6279\u91cf\u67e5\u8be2\u6570\u636e\u7684\u65b9\u5f0f\uff0c\u800c\u4e0d\u662f\u5faa\u73af\u5355\u72ec\u67e5\u8be2\u6570\u636e\u3002\u4f8b\u5982\uff0c\u5728\u67e5\u8be2\u8ba2\u5355\u4fe1\u606f\u65f6\uff0c\u6211\u4eec\u53ef\u4ee5\u5c06\u9700\u8981\u67e5\u8be2\u7684\u8ba2\u5355ID\u96c6\u5408\u4f20\u9012\u5230IN\u6761\u4ef6\u4e2d\u8fdb\u884c\u67e5\u8be2\uff0c\u5982\u4e0b\u6240\u793a\uff1a $orderIds = [1, 2, 3, 4, 5]; $orders = Order::find()-&gt;where([‘in’, ‘id’, $orderIds])-&gt;all(); \u767b\u5f55\u540e\u590d\u5236 \u7f13\u5b58\u67e5\u8be2\u7ed3\u679c \u4e3a\u4e86\u907f\u514d\u91cd\u590d\u67e5\u8be2\u540c\u4e00\u6570\u636e\uff0c\u6211\u4eec\u53ef\u4ee5\u5c06\u67e5\u8be2\u7ed3\u679c\u8fdb\u884c\u7f13\u5b58\u3002Yii\u6846\u67b6\u63d0\u4f9b\u4e86\u591a\u79cd\u7f13\u5b58\u7ec4\u4ef6\uff0c\u5305\u62ec\u57fa\u4e8e\u6587\u4ef6\u3001Memcache\u3001Redis\u7b49\u7f13\u5b58\u65b9\u5f0f\u3002\u4f8b\u5982\uff0c\u5728\u67e5\u8be2\u5546\u54c1\u4fe1\u606f\u65f6\uff0c\u6211\u4eec\u53ef\u4ee5\u5c06\u67e5\u8be2\u7ed3\u679c\u7f13\u5b5810\u5206\u949f\uff0c\u5982\u4e0b\u6240\u793a\uff1a $cacheKey = ‘cache_key_’ . $productId; $cacheDuration = 600; \/\/ \u7f13\u5b5810\u5206\u949f $product = Yii::$app-&gt;cache-&gt;getOrSet($cacheKey, function () use ($productId) { return Product::findOne($productId); }, $cacheDuration); […]<\/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-23847","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/23847","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=23847"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/23847\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=23847"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=23847"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=23847"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}