{"id":34039,"date":"2023-11-18T12:23:12","date_gmt":"2023-07-12T02:49:39","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e4%bd%bf%e7%94%a8rails%e3%80%81redis%e5%92%8cwhenever%e6%9d%a5%e5%ae%9e%e6%97%b6%e6%98%be%e7%a4%bapv%e6%95%b0%e7%9a%84%e6%96%b9%e6%b3%95\/"},"modified":"2024-05-04T09:41:12","modified_gmt":"2024-05-04T01:41:12","slug":"%e4%bd%bf%e7%94%a8rails%e3%80%81redis%e5%92%8cwhenever%e6%9d%a5%e5%ae%9e%e6%97%b6%e6%98%be%e7%a4%bapv%e6%95%b0%e7%9a%84%e6%96%b9%e6%b3%95","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e4%bd%bf%e7%94%a8rails%e3%80%81redis%e5%92%8cwhenever%e6%9d%a5%e5%ae%9e%e6%97%b6%e6%98%be%e7%a4%bapv%e6%95%b0%e7%9a%84%e6%96%b9%e6%b3%95\/","title":{"rendered":"\u4f7f\u7528Rails\u3001Redis\u548cwhenever\u6765\u5b9e\u65f6\u663e\u793aPV\u6570\u7684\u65b9\u6cd5"},"content":{"rendered":"

\u521d\u6b21\u89c1\u9762\u3002\u6211\u662f\u4e30\u5ddd\uff0c\u4eca\u5929\u5f00\u59cb\u5728 Qiita \u4e0a\u51fa\u9053\u3002\u5e73\u65f6\u6211\u4e60\u60ef\u5728\u81ea\u5df1\u7684\u535a\u5ba2\u4e0a\u5199\u6587\u7ae0\uff0c\u4f46\u662f\u6211\u60f3\u4f5c\u4e3a\u4e00\u540d\u5de5\u7a0b\u5e08\uff0c\u4e5f\u60f3\u5728 Qiita \u4e0a\u53d1\u5e03\u4e00\u4e9b\u6587\u7ae0\uff0c\u6240\u4ee5\u4e0b\u5b9a\u51b3\u5fc3\u5c1d\u8bd5\u4e86\u4e00\u4e0b\u51fa\u9053\u3002<\/p>\n

\u65e5\u5e38\u751f\u6d3b\u4e2d\uff0c\u6211\u4e5f\u5728\u7f16\u5199Rails\u7684\u5e94\u7528\u7a0b\u5e8f\u3002\u5728\u5176\u4e2d\uff0c\u6211\u4f7f\u7528Rails\u3001Redis\u548cwhenever\u5b9e\u73b0\u4e86\u4fdd\u5b58\u6bcf\u65e5PV\u6570\u91cf\u7684\u529f\u80fd\u3002\u6211\u60f3\u4ee5\u5907\u5fd8\u5f55\u7684\u5f62\u5f0f\u8bb0\u5f55\u4e0b\u8fd9\u4e2a\u65b9\u6cd5\u3002<\/p>\n

\u6211\u60f3\u8981\u5b9e\u65bd\u8fd9\u4e2a\u529f\u80fd\u7684\u539f\u56e0\u662f\u4ec0\u4e48\uff1f<\/h1>\n

\u6211\u5e0c\u671b\u80fd\u591f\u5728\u6211\u81ea\u5df1\u5f00\u53d1\u7684Rails\u5e94\u7528\u7a0b\u5e8f\u4e2d\u5b9e\u65f6\u663e\u793a\u9875\u9762\u6d4f\u89c8\u91cf\uff0c\u5e76\u4e14\u81ea\u4ece\u5f00\u59cb\u5b66\u4e60Rails\u4ee5\u6765\uff0c\u6211\u5c31\u77e5\u9053\u4e86Redis\u8fd9\u4e2a\u5b58\u5728\uff0c\u4f46\u5b9e\u9645\u4e0a\u4ece\u6765\u6ca1\u6709\u7528Redis\u5b9e\u73b0\u8fc7\u4efb\u4f55\u4e1c\u897f\uff0c\u6240\u4ee5\u6211\u60f3\u5c06\u5176\u4f5c\u4e3a\u7ec3\u4e60\u7684\u5bf9\u8c61\u6765\u5b9e\u73b0\u8fd9\u4e2a\u529f\u80fd\u3002<\/p>\n

\u6211\u66fe\u7ecf\u5c1d\u8bd5\u8fc7\u5404\u79cd\u65b9\u5f0f\u53bb\u641c\u7d22\u6587\u7ae0\uff0c\u56e0\u4e3a\u6211\u60f3\u8bf4\u4e0d\u53ef\u80fd\u6ca1\u6709\u4e00\u7bc7\u76f8\u5173\u7684\u6587\u7ae0\u5b58\u5728\u3002\u7136\u800c\uff0c\u5927\u90e8\u5206\u7684\u7ed3\u679c\u90fd\u662f\u5173\u4e8e\u4f7f\u7528Redis\u6765\u5b9e\u73b0\u6bcf\u65e5\u9875\u9762\u6d4f\u89c8\u91cf\u6392\u540d\u7684\uff0c\u4e0e\u6211\u7684\u521d\u8877\u6709\u4e9b\u4e0d\u7b26\u5408\u3002\u56e0\u6b64\uff0c\u6211\u51b3\u5b9a\u5199\u8fd9\u7bc7\u6587\u7ae0\u3002<\/p>\n

\u4e3a\u4ec0\u4e48\u4ec5\u4f7f\u7528Redis\u4fdd\u5b58PV\u7684\u65b9\u6cd5\u884c\u4e0d\u901a\uff1f<\/h2>\n

\u5982\u679c\u6309\u7167\u4e4b\u524d\u63d0\u5230\u7684\uff0c\u4f7f\u7528\u6bcf\u65e5PV\u6392\u540d\u903b\u8f91\u5c06PV\u6570\u636e\u79ef\u7d2f\u5230Redis\u4e2d\uff0c\u4f3c\u4e4e\u5f88\u5bb9\u6613\u5b9e\u73b0\uff0c\u4f46\u4e3a\u4ec0\u4e48\u4e0d\u884c\u5462\uff1f<\/p>\n

\u6b63\u5982\u60a8\u6240\u77e5\uff0cRedis\u662f\u4e00\u79cd\u5185\u5b58\u6570\u636e\u5e93\uff0c\u56e0\u6b64\u5177\u6709\u9ad8\u6027\u80fd\u7684\u540c\u65f6\uff0c\u6301\u4e45\u6027\u8f83\u4f4e\uff0c\u56e0\u6b64\u5f88\u96be\u6c38\u4e45\u4fdd\u5b58\u8fc7\u53bb\u7684PV\u6570\u636e\u3002\u5bf9\u4e8e\u50cf\u6bcf\u65e5\u6392\u540d\u8fd9\u6837\u53ea\u9700\u4fdd\u5b58\u5f53\u5929\u6570\u636e\u5e76\u663e\u793a\u7684\u60c5\u51b5\uff0c\u6570\u636e\u7684\u4f7f\u7528\u671f\u9650\u662f\u76f8\u5bf9\u56fa\u5b9a\u7684\u60c5\u51b5\u4e0b\uff0cRedis\u662f\u6700\u4f73\u9009\u62e9\u3002\u4f46\u5bf9\u4e8e\u50cf\u6211\u73b0\u5728\u5c1d\u8bd5\u505a\u7684\u8fd9\u6837\u9700\u8981\u56de\u6eaf\u5230\u8fc7\u53bb\u7684PV\u6570\u636e\u8fdb\u884c\u4f7f\u7528\u7684\u60c5\u51b5\uff0c\u4f20\u7edf\u7684\u6570\u636e\u5e93\u66f4\u52a0\u9002\u5408\u3002<\/p>\n

\u5c3d\u7ba1\u5982\u6b64\uff0c\u6211\u8ba4\u4e3a\u5c06PV\u4fdd\u5b58\u5728DB\u4e2d\u7684\u65b9\u6cd5\u4e5f\u662f\u6beb\u65e0\u610f\u4e49\u7684\u3002\u539f\u56e0\u662f\u6bcf\u5f53\u7528\u6237\u6d4f\u89c8\u6587\u7ae0\u65f6\uff0c\u90fd\u4f1a\u8fd0\u884cSQL\u5e76\u8fdb\u884c\u4fdd\u5b58\uff0c\u5982\u679c\u8bbf\u95ee\u91cf\u96c6\u4e2d\uff0c\u8d1f\u8f7d\u4f1a\u53d8\u5f97\u76f8\u5f53\u5927\u7684\u539f\u56e0\u3002(\u4e0d\u8003\u8651\u5b9e\u9645\u4e0a\u662f\u5426\u8981\u521b\u5efa\u8fd9\u6837\u9ad8\u6d41\u91cf\u7684\u670d\u52a1)<\/p>\n

\u56e0\u6b64\u6211\u60f3\u5230\u7684\u65b9\u6cd5\u662f\u4f7f\u7528Redis\u6301\u7eed\u79ef\u7d2f\u6bcf\u5929\u7684PV\u6570\u636e\uff0c\u5e76\u4e14\u5229\u7528whenever\u5b9a\u671f\u5c06PV\u6570\u636e\u4fdd\u5b58\u5230\u6570\u636e\u5e93\u4e2d\u3002\u8fd9\u6837\u505a\u65e2\u80fd\u4fdd\u6301Redis\u7684\u6027\u80fd\uff0c\u53c8\u80fd\u5229\u7528\u6570\u636e\u5e93\u7684\u6301\u4e45\u6027\u6765\u957f\u671f\u4fdd\u5b58PV\u6570\u636e\uff08\u800c\u4e14\u8fd8\u662f\u6309\u65e5\u4fdd\u5b58\uff09\u3002<\/p>\n

\u5b9e\u65bd\u6b65\u9aa4<\/h1>\n

\u5c3d\u7ba1\u524d\u9762\u90e8\u5206\u6709\u4e9b\u5197\u957f\uff0c\u4f46\u6211\u5e0c\u671b\u5199\u4e0b\u4ee4\u4eba\u5173\u6ce8\u7684\u5b9e\u9645\u5b9e\u65bd\u6b65\u9aa4\u3002<\/p>\n

Redis\u76f8\u5173\u7684\u5b9e\u73b0<\/h2>\n

\u9996\u5148\uff0c\u6211\u4eec\u5c06\u7ee7\u7eed\u5728Redis\u4e0a\u5b9e\u73b0\u4e34\u65f6\u5b58\u50a8PV\u7684\u529f\u80fd\u3002\u5982\u679cRedis\u672a\u5728\u60a8\u7684\u73af\u5883\u4e2d\u5b89\u88c5\uff0c\u8bf7\u4f7f\u7528brew install\u7b49\u65b9\u6cd5\u5b89\u88c5Redis\u3002<\/p>\n

\u51c6\u5907\u4f7f\u7528 Redis<\/h3>\n

\u672c\u6b21\u5728\u4f7f\u7528Redis\u8fdb\u884c\u5b9e\u73b0\u65f6\uff0c\u6211\u4eec\u5f15\u5165\u4e86\u4ee5\u4e0b\u4e24\u4e2agem\u3002<\/p>\n

gem<\/span> \"redis\"<\/span>\r\ngem<\/span> \"redis-objects\"<\/span>\r\n<\/code><\/pre>\n
\u8fd9\u6b21\u6211\u4eec\u51b3\u5b9a\u4f7f\u7528redis-objects\u5c06Redis\u5b9e\u65bd\u4e3a\u7c7b\u4f3cActiveRecord\u7684\u65b9\u5f0f\u3002\u5982\u679c\u719f\u6089Rails\u7684\u7f16\u5199\u65b9\u5f0f\uff0c\u4f60\u4f1a\u53d1\u73b0\u8fd9\u6837\u7684\u5b9e\u65bd\u76f8\u5f53\u76f4\u89c2\uff0c\u6211\u5f3a\u70c8\u63a8\u8350\u5b83\u3002<\/p>\n
\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u5c06\u5bf9\u5404\u79cd\u914d\u7f6e\u6587\u4ef6\u8fdb\u884c\u8bbe\u7f6e\u3002<\/p>\n
ENV<\/span>[<\/span>\"REDIS\"<\/span>]<\/span> =<\/span> \"localhost:6379\"<\/span>\r\n<\/code><\/pre>\n
require<\/span> \"redis\"<\/span>\r\n\r\nuri<\/span> =<\/span> URI<\/span>.<\/span>parse<\/span>(<\/span>ENV<\/span>[<\/span>\"REDIS\"<\/span>])<\/span>\r\nREDIS<\/span> =<\/span> Redis<\/span>.<\/span>new<\/span>(<\/span>host: <\/span>uri<\/span>.<\/span>host<\/span>,<\/span> port: <\/span>uri<\/span>.<\/span>port<\/span>)<\/span>\r\n<\/code><\/pre>\n
\u73b0\u5728Redis\u5df2\u7ecf\u51c6\u5907\u5b8c\u6bd5\u4e86\u3002<\/p>\n
\u6a21\u578b\u7684\u5b9e\u73b0<\/h3>\n
\u56e0\u4e3a\u6211\u60f3\u5c06PV\u4e0e\u540d\u4e3aPlan\u7684Model\u76f8\u5173\u8054\uff0c\u6240\u4ee5\u6211\u4f1a\u5728\u8fd9\u91cc\u5199\u4e0b\u5982\u4e0b\u4ee3\u7801\u3002<\/p>\n
class<\/span> Plan<\/span> <<\/span> ApplicationRecord<\/span>\r\n  include<\/span> Redis<\/span>::<\/span>Objects<\/span>\r\n\r\n  # \u30c7\u30a4\u30ea\u30fc\u3067\u5207\u308a\u66ff\u308f\u308bRedis\u306eKey<\/span>\r\n  @@yesterday<\/span> =<\/span> \"pv<\/span>#{<\/span>Date<\/span>.<\/span>yesterday<\/span>.<\/span>strftime<\/span>(<\/span>'%Y_%m_%d'<\/span>)<\/span>}<\/span>\"<\/span>\r\n  @@today<\/span> =<\/span> \"pv<\/span>#{<\/span>Date<\/span>.<\/span>today<\/span>.<\/span>strftime<\/span>(<\/span>'%Y_%m_%d'<\/span>)<\/span>}<\/span>\"<\/span>\r\n\r\n  # \u65e5\u4ed8\u5225\u3067DB\u306b\u4fdd\u5b58\u3059\u308b\u3088\u3046\u306eRedis\u30aa\u30d6\u30b8\u30a7\u30af\u30c8<\/span>\r\n  sorted_set<\/span> @@yesterday<\/span>,<\/span> global: <\/span>true<\/span>\r\n  sorted_set<\/span> @@today<\/span>,<\/span> global: <\/span>true<\/span>\r\n\r\n  # \u753b\u9762\u8868\u793a\u7528\u306eRedis\u30aa\u30d6\u30b8\u30a7\u30af\u30c8<\/span>\r\n  sorted_set<\/span> :display_pv<\/span>,<\/span> global: <\/span>true<\/span>\r\n\r\n  def<\/span> increment_pv<\/span>\r\n    set_pv_keys<\/span>\r\n    self<\/span>.<\/span>class<\/span>.<\/span>send<\/span>(<\/span>@@today<\/span>).<\/span>increment<\/span>(<\/span>id<\/span>)<\/span>\r\n    self<\/span>.<\/span>class<\/span>.<\/span>display_pv<\/span>.<\/span>increment<\/span>(<\/span>id<\/span>)<\/span>\r\n  end<\/span>\r\n\r\n  def<\/span> show_pv<\/span>\r\n    set_pv_keys<\/span>\r\n    self<\/span>.<\/span>class<\/span>.<\/span>display_pv<\/span>[<\/span>id<\/span>].<\/span>to_i<\/span>\r\n  end<\/span>\r\n\r\n  private<\/span>\r\n    # \u65e5\u4ed8\u304c\u5909\u308f\u3063\u305f\u969b\u306b\u65b0\u305f\u306bRedis\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u751f\u6210<\/span>\r\n    def<\/span> set_pv_keys<\/span> \r\n      if<\/span> @@today<\/span> !=<\/span> \"pv<\/span>#{<\/span>Date<\/span>.<\/span>today<\/span>.<\/span>strftime<\/span>(<\/span>'%Y_%m_%d'<\/span>)<\/span>}<\/span>\"<\/span>\r\n        @@yesterday<\/span> =<\/span> \"pv<\/span>#{<\/span>Date<\/span>.<\/span>yesterday<\/span>.<\/span>strftime<\/span>(<\/span>'%Y_%m_%d'<\/span>)<\/span>}<\/span>\"<\/span>\r\n        @@today<\/span> =<\/span> \"pv<\/span>#{<\/span>Date<\/span>.<\/span>today<\/span>.<\/span>strftime<\/span>(<\/span>'%Y_%m_%d'<\/span>)<\/span>}<\/span>\"<\/span>\r\n        Plan<\/span>.<\/span>sorted_set<\/span> @@today<\/span>,<\/span> global: <\/span>true<\/span>\r\n      end<\/span>\r\n    end<\/span>\r\nend<\/span>\r\n<\/code><\/pre>\n
\u5728\u8fd9\u91cc\u6709\u51e0\u4e2a\u91cd\u8981\u70b9\u9700\u8981\u5f3a\u8c03\u3002<\/p>\n
\u7b2c\u4e00\u4e2a\u76ee\u6807\u662f\u5c06Redis\u7684\u952e\u4e0e\u65e5\u671f\u5173\u8054\u8d77\u6765\u3002<\/p>\n
# \u30c7\u30a4\u30ea\u30fc\u3067\u5207\u308a\u66ff\u308f\u308bRedis\u306eKey<\/span>\r\n@@yesterday<\/span> =<\/span> \"pv<\/span>#{<\/span>Date<\/span>.<\/span>yesterday<\/span>.<\/span>strftime<\/span>(<\/span>'%Y_%m_%d'<\/span>)<\/span>}<\/span>\"<\/span>\r\n@@today<\/span> =<\/span> \"pv<\/span>#{<\/span>Date<\/span>.<\/span>today<\/span>.<\/span>strftime<\/span>(<\/span>'%Y_%m_%d'<\/span>)<\/span>}<\/span>\"<\/span>\r\n<\/code><\/pre>\n
\u901a\u8fc7\u8fd9\u4e2a\u65b9\u6cd5\uff0c\u53ef\u4ee5\u6309\u7167\u65e5\u671f\u5bf9Redis\u5bf9\u8c61\u8fdb\u884c\u7ba1\u7406\u3002\u5bf9\u8c61\u7684\u793a\u610f\u56fe\u5982\u4e0b\uff1a<\/p>\n
\n
Keymemberscorepv2018_02_09plan_id8pv2018_02_10plan_id4<\/div>\n<\/div>\n
\u5c06Redis\u5bf9\u8c61\u5206\u6210\u524d\u4e00\u5929\u7528\u548c\u5f53\u5929\u7528\u7684\u539f\u56e0\u5c06\u5728\u7a0d\u540e\u89e3\u91ca\u3002<\/p>\n
\u5c06Redis\u5bf9\u8c61\u5206\u4e3a\u5b58\u50a8\u7528\u7684Redis\u5bf9\u8c61\u548c\u7528\u4e8e\u753b\u9762\u663e\u793a\u7684Redis\u5bf9\u8c61\u3002<\/p>\n
# \u65e5\u4ed8\u5225\u3067DB\u306b\u4fdd\u5b58\u3059\u308b\u3088\u3046\u306eRedis\u30aa\u30d6\u30b8\u30a7\u30af\u30c8<\/span>\r\nsorted_set<\/span> @@yesterday<\/span>,<\/span> global: <\/span>true<\/span>\r\nsorted_set<\/span> @@today<\/span>,<\/span> global: <\/span>true<\/span>\r\n\r\n# \u753b\u9762\u8868\u793a\u7528\u306eRedis\u30aa\u30d6\u30b8\u30a7\u30af\u30c8<\/span>\r\nsorted_set<\/span> :display_pv<\/span>,<\/span> global: <\/span>true<\/span>\r\n<\/code><\/pre>\n
\u7a0d\u540e\u6211\u4f1a\u53d1\u5e03\u6709\u5173View\u4fa7\u4ee3\u7801\u7684\u5185\u5bb9\uff0c\u7b80\u5355\u89e3\u91ca\u4e00\u4e0b\uff0c\u5c31\u662f\u901a\u8fc7View\u6765\u663e\u793a\u201c\u4fdd\u5b58\u5728\u6570\u636e\u5e93\u4e2d\u7684PV + \u4fdd\u5b58\u5728Redis\u4e2d\u7684\u5f53\u5929PV\u201d\uff0c\u7136\u800c\uff0c\u5982\u679c\u4ec5\u4ec5\u901a\u8fc7\u6bcf\u65e5\u7684Redis\u5bf9\u8c61\u6765\u5b9e\u73b0\u7684\u8bdd\uff0c\u5f53\u65e5\u671f\u53d1\u751f\u53d8\u5316\u65f6\uff0c\u503c\u4f1a\u5207\u6362\u5230\u7b2c\u4e8c\u5929\u7684Redis\u5bf9\u8c61\uff0c\u8fd9\u4f1a\u5bfc\u81f4\u5728\u65e5\u671f\u53d8\u5316\u540e\u5230\u5f53\u65e5PV\u4fdd\u5b58\u5230\u6570\u636e\u5e93\u7684\u8fd9\u6bb5\u65f6\u95f4\u5185\uff0cPV\u6570\u91cf\u770b\u8d77\u6765\u51cf\u5c11\u4e86\u3002\uff08\u7528\u6587\u5b57\u89e3\u91ca\u5f88\u96be\u7406\u89e3\u5462\u3002\u3002\uff09<\/p>\n
\u4e3a\u4e86\u9632\u6b62\u8fd9\u79cd\u60c5\u51b5\uff0c\u521b\u5efa\u4e86\u7528\u4e8e\u5c4f\u5e55\u663e\u793a\u7684Redis\u5bf9\u8c61\uff0c\u5373\u4f7f\u65e5\u671f\u53d1\u751f\u53d8\u5316\uff0c\u4e5f\u80fd\u591f\u7ee7\u627f\u524d\u4e00\u5929\u7684\u9875\u9762\u6d4f\u89c8\u91cf\u5e76\u8fdb\u884c\u663e\u793a\u3002<\/p>\n
\u7b2c\u4e09\u4e2a\u76ee\u6807\u662f\u5728\u65e5\u671f\u66f4\u6539\u65f6\u80fd\u591f\u751f\u6210\u65b0\u7684Redis\u5bf9\u8c61\u3002<\/p>\n
# \u65e5\u4ed8\u304c\u5909\u308f\u3063\u305f\u969b\u306b\u65b0\u305f\u306bRedis\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u751f\u6210<\/span>\r\ndef<\/span> set_pv_keys<\/span> \r\n  if<\/span> @@today<\/span> !=<\/span> \"pv<\/span>#{<\/span>Date<\/span>.<\/span>today<\/span>.<\/span>strftime<\/span>(<\/span>'%Y_%m_%d'<\/span>)<\/span>}<\/span>\"<\/span>\r\n    @@yesterday<\/span> =<\/span> \"pv<\/span>#{<\/span>Date<\/span>.<\/span>yesterday<\/span>.<\/span>strftime<\/span>(<\/span>'%Y_%m_%d'<\/span>)<\/span>}<\/span>\"<\/span>\r\n    @@today<\/span> =<\/span> \"pv<\/span>#{<\/span>Date<\/span>.<\/span>today<\/span>.<\/span>strftime<\/span>(<\/span>'%Y_%m_%d'<\/span>)<\/span>}<\/span>\"<\/span>\r\n    Plan<\/span>.<\/span>sorted_set<\/span> @@today<\/span>,<\/span> global: <\/span>true<\/span>\r\n  end<\/span>\r\nend<\/span>\r\n<\/code><\/pre>\n
\u5982\u679c\u4e0d\u8fd9\u6837\u505a\uff0c\u5373\u4f7f\u65e5\u671f\u5df2\u7ecf\u6539\u53d8\uff0c\u4e5f\u4f1a\u7ee7\u7eed\u4f7f\u7528\u524d\u4e00\u5929\u7684Redis\u5bf9\u8c61\uff0c\u800c\u4e0d\u4f1a\u751f\u6210\u65b0\u7684\u5f53\u5929\u7684Redis\u5bf9\u8c61\u3002\u56e0\u6b64\uff0c\u6211\u4eec\u5c06\u521b\u5efa\u8fd9\u4e2a\u65b9\u6cd5\uff0c\u5e76\u5728PV\u663e\u793a\u6216PV\u589e\u52a0\u7684\u65f6\u5019\u91cd\u65b0\u58f0\u660e\uff0c\u4ee5\u4fbf\u53ef\u4ee5\u91cd\u65b0\u4f7f\u7528\u3002<\/p>\n
\u8fd9\u6837Model\u7684\u5b9e\u65bd\u5c31\u5b8c\u6210\u4e86\u3002\u6b64\u5916\uff0cRedis\u7684\u76f8\u5173\u5b9e\u65bd\u4e5f\u6682\u65f6\u5b8c\u6210\u4e86\uff0c\u73b0\u5728\u5f00\u59cb\u7740\u624b\u5efa\u7acb\u4fdd\u5b58PV\u7684\u6570\u636e\u5e93\u3002<\/p>\n
\u521b\u5efa\u4e00\u4e2a\u7528\u4e8e\u4fdd\u5b58PV\u7684\u6570\u636e\u5e93\u3002<\/h2>\n
\u867d\u7136\u6709\u4e00\u4e9b\u56f0\u96be\uff0c\u4f46\u6211\u4eec\u5c06\u6309\u7167\u901a\u5e38\u7684Rails\u5e94\u7528\u7a0b\u5e8f\u5f00\u53d1\u6d41\u7a0b\u8fdb\u884c\u5b9e\u73b0\uff0c\u6ca1\u6709\u4ec0\u4e48\u7279\u522b\u7684\u3002<\/p>\n
\u521b\u5efa\u6a21\u578b<\/h3>\n
\u4f7f\u7528\u901a\u5e38\u7684 bin\/rails g \u547d\u4ee4\u521b\u5efa PageView \u6a21\u578b\uff0c\u5e76\u76f4\u63a5\u6267\u884c db:migrate\uff0c\u65e0\u9700\u4fee\u6539\u4efb\u4f55\u8fc1\u79fb\u6587\u4ef6\u3002<\/p>\n
$ <\/span>bin\/rails g model PageView count:integer date<\/span>:date plan_id:integer\r\n$ <\/span>bin\/rails db:migrate\r\n<\/code><\/pre>\n
\u6211\u5011\u5c07\u5be6\u73fe\u4e00\u500b\u95dc\u806f\uff0c\u4f7f\u8a08\u5283\u8207\u9801\u9762\u700f\u89bd\u76f8\u95dc\u806f\u3002<\/p>\n
has_many<\/span> :page_views<\/span>,<\/span> dependent: :destroy<\/span>\r\n<\/code><\/pre>\n
belongs_to<\/span> :plan<\/span>\r\n<\/code><\/pre>\n
\u55ef\uff0c\u5c31\u8fd9\u6837\uff0cModel\u7684\u5b9e\u73b0\u987a\u5229\u5b8c\u6210\u4e86\uff0c\u6ca1\u6709\u9047\u5230\u4ec0\u4e48\u56f0\u96be\u3002<\/p>\n
\u4e3a\u4e86\u80fd\u591f\u5b9a\u671f\u5c06PV\u4fdd\u5b58\u5230\u6570\u636e\u5e93\u4e2d\uff0c\u9700\u8981\u8fdb\u884c\u76f8\u5e94\u7684\u8bbe\u7f6e\u3002<\/h2>\n
\u7531\u4e8e\u5df2\u7ecf\u5b8c\u6210\u4e86\u7528\u4e8e\u4fdd\u5b58PV\u7684\u6570\u636e\u5e93\u7684\u51c6\u5907\u5de5\u4f5c\uff0c\u6211\u4eec\u73b0\u5728\u60f3\u8981\u5b9e\u73b0\u672c\u6b21\u5b9e\u65bd\u7684\u5173\u952e\u529f\u80fd\uff0c\u5373\u5b9a\u671f\u4fdd\u5b58PV\u3002\u8bf7\u6ce8\u610f\uff0c\u6211\u4eec\u5c06\u6309\u7167\u65e5\u671f\u53d8\u5316\u7684\u65f6\u95f4\uff08\u5348\u591c0\u70b9\uff09\u8fdb\u884c\u5b9a\u671f\u4fdd\u5b58\u7684\u5047\u8bbe\u6765\u8fdb\u884c\u5b9e\u73b0\u8fdb\u7a0b\u3002<\/p>\n
ActiveJob\u7684\u5b9e\u73b0\u65b9\u5f0f<\/h3>\n
\u6211\u4eec\u5c06\u4f7f\u7528ActiveJob\u6765\u5b9e\u73b0\u5b9a\u671f\u6267\u884c\u7684Job\u3002\u4ee3\u7801\u5982\u4e0b\u6240\u793a\uff1a
\n\u5b9a\u671f\u6267\u884c\u7684Job\u5c06\u4f1a\u4f7f\u7528ActiveJob\u8fdb\u884c\u5b9e\u73b0\u3002\u4ee5\u4e0b\u662f\u4ee3\u7801\u793a\u4f8b:<\/p>\n
class<\/span> SavePageViewsJob<\/span> <<\/span> ApplicationJob<\/span>\r\n  queue_as<\/span> :default<\/span>\r\n\r\n  def<\/span> perform<\/span>(<\/span>*<\/span>args<\/span>)<\/span>\r\n    yesterday<\/span> =<\/span> \"pv<\/span>#{<\/span>Date<\/span>.<\/span>yesterday<\/span>.<\/span>strftime<\/span>(<\/span>'%Y_%m_%d'<\/span>)<\/span>}<\/span>\"<\/span>\r\n    yesterday_pv<\/span> =<\/span> Plan<\/span>.<\/span>send<\/span>(<\/span>yesterday<\/span>)<\/span>\r\n    today<\/span> =<\/span> \"pv<\/span>#{<\/span>Date<\/span>.<\/span>today<\/span>.<\/span>strftime<\/span>(<\/span>'%Y_%m_%d'<\/span>)<\/span>}<\/span>\"<\/span>\r\n    today_pv<\/span> =<\/span> Plan<\/span>.<\/span>send<\/span>(<\/span>today<\/span>)<\/span>\r\n    display_pv<\/span> =<\/span> Plan<\/span>.<\/span>display_pv<\/span>\r\n\r\n    # \u524d\u65e5\u306ePV\u3092DB\u306b\u4fdd\u5b58<\/span>\r\n    yesterday_pv<\/span>.<\/span>value<\/span>(<\/span>with_scores: <\/span>true<\/span>).<\/span>each<\/span> do<\/span> |<\/span>value<\/span>,<\/span> score<\/span>|<\/span>\r\n      PageView<\/span>.<\/span>create<\/span>(<\/span>count: <\/span>score<\/span>.<\/span>to_i<\/span>,<\/span> date: <\/span>Date<\/span>.<\/span>yesterday<\/span>,<\/span> plan_id: <\/span>value<\/span>.<\/span>to_i<\/span>)<\/span>\r\n    end<\/span>\r\n    yesterday_pv<\/span>.<\/span>clear<\/span>\r\n\r\n    # \u5f53\u65e5\u306ePV\u3092\u8868\u793a\u7528PV\u306b\u30b3\u30d4\u30fc<\/span>\r\n    display_pv<\/span>.<\/span>clear<\/span>\r\n    if<\/span> today_pv<\/span>.<\/span>present?<\/span>\r\n      display_pv<\/span>.<\/span>merge<\/span> today_pv<\/span>.<\/span>value<\/span>(<\/span>with_scores: <\/span>true<\/span>)<\/span>\r\n    end<\/span>\r\n  end<\/span>\r\nend<\/span>\r\n<\/code><\/pre>\n
\u8fd9\u4e2a\u5de5\u4f5c\u4e3b\u8981\u6709\u4e24\u4e2a\u4e3b\u8981\u6b65\u9aa4\u3002<\/p>\n
\u4ee5\u4e0b\u662f\u5bf9\u539f\u6587\u7684\u4e2d\u6587\u7ffb\u8bd1\uff1a<\/p>\n
\u8fd9\u662f\u4fdd\u5b58\u524d\u4e00\u5929PV\u7684\u5904\u7406\u3002\u5728\u65e5\u671f\u66f4\u6539\u65f6\uff0c\u4f1a\u4fdd\u5b58\u524d\u4e00\u5929\u7684PV\u3002\u5728\u5b9e\u73b0Redis\u90e8\u5206\u65f6\uff0c\u4f1a\u51fa\u73b0\u524d\u4e00\u5929\u7684Key\u3002\u4fdd\u5b58Redis\u5bf9\u8c61\u7684\u6210\u5458\u548c\u5206\u6570\uff0c\u7136\u540e\u5220\u9664\u8be5Redis\u5bf9\u8c61\u3002<\/p>\n
\u8fd9\u4e2a\u5904\u7406\u662f\u5c06\u5f53\u5929\u7684PV\u590d\u5236\u5230\u663e\u793a\u7528\u7684PV\u4e2d\u3002\u6267\u884c\u8fd9\u4e2a\u5904\u7406\u7684\u610f\u56fe\u662f\uff0c\u5728\u5348\u591c0\u70b9\u8fdb\u884c\u6279\u5904\u7406\u5e76\u4fdd\u5b58\u5230\u6570\u636e\u5e93\u7684\u65f6\u95f4\u5dee\u671f\u95f4\uff0c\u5c06\u5f53\u5929\u589e\u52a0\u7684PV\u540c\u6b65\u5230\u663e\u793a\u7528PV\u4e0a\uff0c\u4ee5\u6d88\u9664\u5f53\u5929PV\u548c\u663e\u793a\u7528PV\u4e4b\u95f4\u7684\u5dee\u5f02\u3002<\/p>\n
\u73b0\u5728\u53ef\u4ee5\u4f7f\u7528\u8fd9\u4e2a\u6765\u5b8c\u5168\u5730\u5b9e\u73b0\u5c06PV\u4fdd\u5b58\u5230\u6570\u636e\u5e93\u7684\u5de5\u4f5c\u3002<\/p>\n
\u65e0\u8bba\u4f55\u65f6\u8fdb\u884c\u5b9a\u671f\u6267\u884c\u7684\u8bbe\u5b9a<\/h3>\n
\u53ea\u662f\u5b9e\u73b0\u4e86\u5de5\u4f5c\uff08Job\uff09\uff0c\u5e76\u4e0d\u80fd\u5b9e\u73b0\u5b9a\u671f\u6267\u884c\uff0c\u6240\u4ee5\u6211\u4eec\u8981\u786e\u4fdd\u8fd9\u4e2a\u5de5\u4f5c\u5728\u65e5\u671f\u53d8\u5316\u7684\u65f6\u5019\u80fd\u591f\u6267\u884c\uff0c\u8fd9\u5c31\u9700\u8981\u8bbe\u7f6e\u3002\u4e3a\u4e86\u5b9e\u73b0\u8fd9\u4e00\u70b9\uff0c\u6211\u4eec\u9700\u8981\u7528\u5230\u4e00\u4e2a\u53eb\u505awhenever\u7684gem\u3002<\/p>\n
gem<\/span> \"whenever\"<\/span>,<\/span> require: <\/span>false<\/span>\r\n<\/code><\/pre>\n
\u5982\u679c\u60a8\u9605\u8bfb\u5b98\u65b9\u7684README\u6587\u4ef6\uff0c\u60a8\u5c31\u53ef\u4ee5\u4e86\u89e3\u5173\u4e8e\u8fd9\u4e2agem\u7684\u8be6\u7ec6\u4fe1\u606f\u3002\u7b80\u5355\u6765\u8bf4\uff0c\u8fd9\u4e2agem\u53ef\u4ee5\u751f\u6210\u4e00\u4e2a\u5f88\u65b9\u4fbf\u7684\u5de5\u5177\uff0c\u7528\u4e8e\u5728Linux\u7684\u540e\u53f0\u8fdb\u884c\u5b9a\u671f\u5904\u7406\uff0c\u79f0\u4e4b\u4e3acron\u3002<\/p>\n
\u5b89\u88c5\u8fd9\u4e2agem\u540e\uff0c\u6267\u884c\u4ee5\u4e0b\u547d\u4ee4\u5373\u53ef\u751f\u6210\u914d\u7f6e\u6587\u4ef6\u3002<\/p>\n
$ <\/span>bundle exec <\/span>wheneverize .<\/span>\r\n<\/code><\/pre>\n
\u53ea\u9700\u6309\u7167\u4ee5\u4e0b\u65b9\u5f0f\u8ffd\u52a0\u751f\u6210\u7684\u8bbe\u7f6e\u6587\u4ef6\uff0c\u5373\u53ef\u8f7b\u677e\u5b8c\u6210\u5b9a\u671f\u5904\u7406\u7684\u201c\u524d\u671f\u51c6\u5907\u201d\u3002<\/p>\n
rails_env<\/span> =<\/span> ENV<\/span>[<\/span>\"RAILS_ENV\"<\/span>]<\/span> ||<\/span> :development<\/span>\r\nset<\/span> :environment<\/span>,<\/span> rails_env<\/span>\r\nset<\/span> :output<\/span>,<\/span> \"log\/crontab.log\"<\/span>\r\n\r\nevery<\/span> 1<\/span>.<\/span>day<\/span>,<\/span> at: <\/span>\"0:00 am\"<\/span> do<\/span>\r\n  runner<\/span> \"SavePageViewsJob.perform_now\"<\/span>\r\nend<\/span>\r\n<\/code><\/pre>\n
\u521a\u624d\u63d0\u5230\u7684”\u4e0b\u6e96\u5099”\u662f\u4e3a\u4e86\u786e\u4fddcron\u5b9a\u65f6\u4efb\u52a1\u7684\u8bbe\u7f6e\u751f\u6548\uff0c\u8bf7\u52a1\u5fc5\u6267\u884c\u4ee5\u4e0b\u547d\u4ee4\uff0c\u4e0d\u8981\u5fd8\u8bb0\u3002<\/p>\n
$ <\/span>bundle exec <\/span>whenever --update-crontab<\/span>\r\n<\/code><\/pre>\n
\u8bf7\u6267\u884c\u4e0b\u9762\u7684\u547d\u4ee4\u4ee5\u786e\u8ba4\u662f\u5426\u6210\u529f\u6ce8\u518c\uff1a<\/p>\n
$ <\/span>bundle exec <\/span>whenever\r\n<\/code><\/pre>\n
\u987a\u4fbf\u63d0\u4e00\u53e5\uff0c\u5982\u679c\u60f3\u8981\u4ececron\u4e2d\u53d6\u6d88\u8bbe\u5b9a\uff0c\u53ea\u9700\u6267\u884c\u4e0b\u9762\u7684\u547d\u4ee4\u5373\u53ef\u53d6\u6d88\u3002<\/p>\n
$ <\/span>bundle exec <\/span>whenever --clear-crontab<\/span>\r\n<\/code><\/pre>\n
\u63a7\u5236\u5668\u548c\u89c6\u56fe\u7684\u5b9e\u73b0<\/h2>\n
\u7531\u4e8e\u4fdd\u5b58PV\u6240\u9700\u7684\u5b9e\u73b0\u5df2\u7ecf\u5168\u90e8\u5b8c\u6210\uff0c\u6211\u4eec\u5c06\u8fdb\u5165\u6700\u540e\u9636\u6bb5\u3002\u8ba9\u6211\u4eec\u6765\u770b\u4e00\u4e0bController\u548cView\u7684\u5b9e\u73b0\u3002\u8fd9\u6b21\u6211\u4eec\u5c06\u5728Plan\u7684\u4e00\u89c8\uff08index\uff09\u548c\u8be6\u7ec6\uff08show\uff09\u9875\u9762\u4e2d\u5c55\u793aPV\u3002<\/p>\n
class<\/span> PlansController<\/span> <<\/span> ApplicationController<\/span>\r\n  def<\/span> index<\/span>\r\n    @plans<\/span> =<\/span> Plan<\/span>.<\/span>all<\/span>\r\n  end<\/span>\r\n\r\n  def<\/span> show<\/span>\r\n    @plan<\/span> =<\/span> Plan<\/span>.<\/span>find<\/span>(<\/span>params<\/span>[<\/span>:id<\/span>])<\/span>\r\n    @pv<\/span> =<\/span> @plan<\/span>.<\/span>show_pv<\/span> +<\/span> @plan<\/span>.<\/span>page_views<\/span>.<\/span>sum<\/span>(<\/span>:count<\/span>)<\/span>\r\n    @plan<\/span>.<\/span>increment_pv<\/span>\r\n  end<\/span>\r\n<\/code><\/pre>\n
-<\/span> @plan<\/span>.<\/span>each<\/span> do<\/span> |<\/span>plan<\/span>|<\/span>\r\n  -<\/span> pv<\/span> =<\/span> plan<\/span>.<\/span>show_pv<\/span> +<\/span> @plan<\/span>.<\/span>page_views<\/span>.<\/span>sum<\/span>(<\/span>:count<\/span>)<\/span>\r\n  =<\/span> pv<\/span>\r\n<\/code><\/pre>\n
=<\/span> @pv<\/span>\r\n<\/code><\/pre>\n
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\u603b\u7ed3<\/h1>\n
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