{"id":28742,"date":"2023-12-13T10:12:15","date_gmt":"2023-12-13T02:12:15","guid":{"rendered":"https:\/\/haocst.com\/?p=28742"},"modified":"2025-03-06T10:18:37","modified_gmt":"2025-03-06T02:18:37","slug":"triggers-and-functions-bring-code-closer-to-the-data","status":"publish","type":"post","link":"https:\/\/www.aqycmy.com\/triggers-and-functions-bring-code-closer-to-the-data\/","title":{"rendered":"\u89e6\u53d1\u5668\u548c\u51fd\u6570\uff1a\u8ba9\u4ee3\u7801\u66f4\u63a5\u8fd1\u6570\u636e"},"content":{"rendered":"\n

97622娱乐电子游戏

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\u6458\u8981<\/p>\n\u672c\u6587\u6307\u51fa\u5e94\u7528\u7a0b\u5e8f\u4f20\u7edf\u5904\u7406\u4e1a\u52a1\u903b\u8f91\uff0c\u5c06\u4ee3\u7801\u53d1\u81f3\u6570\u636e\u5e93\u5b58\u5728\u4f4e\u6548\u3001\u6613\u91cd\u590d\u6267\u884c\u7b49\u5f0a\u7aef\u3002Redis \u4e0d\u65ad\u5347\u7ea7\u4f18\u5316\uff0c\u4ece Redis Gears \u5230 Redis 7.2 \u6301\u7eed\u4e3a\u5f00\u53d1\u8005\u8d4b\u80fd\u3002Redis Gears \u5f00\u542f\u53ef\u7f16\u7a0b\u5148\u6cb3\uff0c\u5f00\u53d1\u4eba\u5458\u53ef\u5c31\u5730\u7f16\u5199\u811a\u672c\uff1bRedis 7.0 \u63d0\u5347\u53ef\u7528\u6027\uff1bRedis 7.2 \u65b0\u589e\u89e6\u53d1\u5668\u548c\u51fd\u6570\uff0c\u5141\u8bb8\u5728\u6570\u636e\u5e93\u5185\u5bf9\u6570\u636e\u53d8\u66f4\u7f16\u7a0b\uff0c\u91c7\u7528\u6d41\u884c\u7684 JavaScript \uff0c\u52a0\u5feb\u4ee3\u7801\u4ea4\u4e92\uff0c\u964d\u4f4e\u5f00\u53d1\u6210\u672c\uff0c\u51cf\u8f7b\u8de8\u5e94\u7528\u7ba1\u7406\u4e1a\u52a1\u903b\u8f91\u7684\u8d1f\u62c5\uff0c\u8fd8\u80fd\u5b9e\u65f6\u5904\u7406\u6570\u636e\u5e93\u4e8b\u4ef6\uff0c\u6587\u672b\u8be6\u8ff0\u89e6\u53d1\u5668\u548c\u51fd\u6570\u64cd\u4f5c\u65b9\u6cd5\u3002<\/cite><\/blockquote>\n\n\n\n

<\/div>\n\n\n\n

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1. \u5e8f\u8a00\u5b9a\u4e49\u6211\u4eec\u4f7f\u7528js\u5f15\u64ce\uff0c\u5e93\u540d\u79f0\u4e3alib\uff0c\u6240\u9700\u7684\u89e6\u53d1\u5668\u548c\u51fd\u6570API\u7684\u6700\u4f4e\u7248\u672c\u4e3a1.0\u3002<\/p>\n\n\n\n

#!js name=lib api_version=1.0<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

2. \u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u521b\u5efa\u4e00\u4e2a\u8fd4\u56deRedis\u547d\u4ee4\u7ed3\u679c\u7684\u51fd\u6570\u3002\u5ba2\u6237\u7aef\u5141\u8bb8\u5728\u6211\u4eec\u7684\u51fd\u6570\u4e2d\u6267\u884cRedis \u547d\u4ee4\u3002\u6570\u636e\u4e8b\u4ef6\u5305\u542b\u8fd0\u884c\u51fd\u6570\u65f6\u53ef\u4ee5\u63d0\u4f9b\u7684\u952e\u548c\u53c2\u6570\u3002<\/p>\n\n\n\n

function answer(client, data) {    return client.call(\u201cping\u201d);}<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

3. Redis\u5168\u5c40\u53d8\u91cf\u5141\u8bb8\u6211\u4eec\u6ce8\u518c\u89e6\u53d1\u5668\u548c\u51fd\u6570\uff0c\u5e76\u8bb0\u5f55\u5230\u65e5\u5fd7\u6587\u4ef6\u4e2d\u3002\u6211\u4eec\u4e3a\u8be5\u51fd\u6570\u6ce8\u518c\u4e00\u4e2a\u540d\u79f0\uff0c\u5e76\u5728\u51fd\u6570\u6267\u884c\u65f6\u8c03\u7528\u5b83\u3002<\/p>\n\n\n\n

redis.registerFunction(\u2018playPingPong\u2019, answer);<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

4. \u5b8c\u6574\u7684JavaScript\u6587\u4ef6\u5982\u4e0b\u6240\u793a\uff0c\u5c06\u5176\u53e6\u5b58\u4e3alib.js.\u00a0<\/p>\n\n\n\n

#!js name=lib api_version=1.0function answer(client, data) {    return client.call(\u2018ping\u2019);}redis.registerFunction(\u2018playPingPong\u2019, answer);<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

5. \u7136\u540e\u6211\u4eec\u4f7f\u7528\u547d\u4ee4\u5728\u89e6\u53d1\u5668\u548c\u51fd\u6570\u4e2d\u6ce8\u518c\u6211\u4eec\u7684\u51fd\u6570TFUNCTION LOAD\u3002\u8be5TFUNCTION LOAD\u547d\u4ee4\u8fd8\u53ef\u4ee5\u5728\u96c6\u7fa4\u6570\u636e\u5e93\u4e2d\u5206\u53d1\u51fd\u6570\u5e93\u3002<\/p>\n\n\n\n

> redis-cli  -x TFUNCTION LOAD < .\/lib.jsOK<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

6. \u73b0\u5728\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528TFCALL\u547d\u4ee4\u6267\u884c\u8be5\u51fd\u6570\u3002\u8be5\u547d\u4ee4\u83b7\u53d6\u4ee5\u53e5\u70b9\u5206\u9694\u7684\u5e93\u540d\u79f0\u548c\u51fd\u6570\u540d\u79f0\u3002<\/p>\n\n\n\n

>redis-cli TFCALL lib.playPingPong 0\u201cPONG\u201d<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

7. \u8fd9\u6837\uff0c\u5c31\u6210\u529f\u5730\u5728Redis\u6570\u636e\u5e93\u4e2d\u521b\u5efa\u3001\u6ce8\u518c\u5e76\u89e6\u53d1\u4e86\u4e00\u4e2a\u51fd\u6570\u3002<\/p>\n\n\n\n

8. \u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u952e\u7a7a\u95f4\u89e6\u53d1\u5668\u62d3\u5c55\u8fd9\u4e2a\u793a\u4f8b\u3002\u6211\u4eec\u6dfb\u52a0\u4e86\u4e00\u4e2a\u65b0\u7684\u6ce8\u518c\uff0c\u8be5\u6ce8\u518c\u5bf9\u524d\u7f00\u4e3a\u2019fellowship:\u2019\u7684\u952e\u505a\u51fa\u53cd\u5e94\u3002\u5728lib.js\u6587\u4ef6\u672b\u5c3e\u6dfb\u52a0\u6b64\u4ee3\u7801\u3002<\/p>\n\n\n\n

function addLastUpdatedField(client, data) {    if(data.event == \u2018hset\u2019) {    var currentDateTime = Date.now();    client.call(\u2018hset\u2019, data.key, \u2018last_updated\u2019, currentDateTime.toString());}}redis.registerKeySpaceTrigger(\u2018addLastUpdated\u2019, \u2018fellowship:\u2019, addLastUpdatedField);<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

9. \u4f7f\u7528\u5e26\u6709REPLACE \u53c2\u6570\u7684\u00a0TFUNCTION LOAD \u547d\u4ee4\u6765\u66f4\u65b0\u73b0\u6709\u5e93\u3002\u8be5TFUNCTION LOAD REPLACE\u547d\u4ee4\u7acb\u5373\u66f4\u65b0\u6240\u6709\u4f7f\u7528 Redis \u6570\u636e\u5e93\u7684\u5ba2\u6237\u7aef\uff0c\u5e76\u4e14\u5b83\u4eec\u4f1a\u5f00\u59cb\u4f7f\u7528\u65b0\u7684\u4e1a\u52a1\u903b\u8f91\u3002<\/p>\n\n\n\n

>redis-cli -x TFUNCTION LOAD REPLACE . < .\/lib.jsOK<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

10. \u8981\u6d4b\u8bd5\u65b0\u7684\u952e\u7a7a\u95f4\u89e6\u53d1\u5668\uff0c\u8bf7\u521b\u5efa\u4e00\u4e2a\u4ee5Fellowship:\u5f00\u5934\u7684\u65b0\u952e\uff0c\u5e76\u4f7f\u7528RedisInsight \u68c0\u67e5\u5b57\u6bb5\u3002\u952e\u7a7a\u95f4\u89e6\u53d1\u5668\u662f\u901a\u8fc7\u547d\u4ee4\u6267\u884c\u7684\uff0c\u56e0\u6b64\u5728\u521b\u5efa\u952e\u65f6\u5df2\u7ecf\u6dfb\u52a0\u4e86last_updated\u5b57\u6bb5\u3002\u6700\u540e\uff0c\u6211\u4eec\u53ef\u4ee5\u5728RedisInsight\u4e2d\u67e5\u770b\u7ed3\u679c\u3002<\/p>\n\n\n\n

\"\"<\/figure>\n","protected":false},"excerpt":{"rendered":"

Redis\u662f\u4e00\u4e2a\u5f3a\u5927\u7684\u6570\u636e\u5e93\u5e73\u53f0\uff0c\u53ef\u4ee5\u7528\u4e8e\u6784\u5efa\u548c\u7ef4\u62a4\u5b9e\u65f6\u5e94\u7528\u7a0b\u5e8f\u3002\u5f00\u53d1\u4eba\u5458\u53ef\u4ee5\u901a\u8fc7\u521b\u5efaJavaScript\u51fd\u6570\uff0c\u5728Redis\u6570\u636e\u5e93\u4e2d\u81ea\u52a8\u6267\u884c\u6570\u636e\u66f4\u6539\u4ee3\u7801\uff0c\u4ece\u800c\u786e\u4fdd\u8f83\u4f4e\u7684\u5ef6\u8fdf\u3002Redis\u7684\u53ef\u7f16\u7a0b\u6027\u4e3a\u5e94\u7528\u7a0b\u5e8f\u5f00\u53d1\u63d0\u4f9b\u4e86\u66f4\u7075\u6d3b\u548c\u9ad8\u6548\u7684\u89e3\u51b3\u65b9\u6848\u3002<\/p>\n","protected":false},"author":1,"featured_media":28744,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"footnotes":""},"categories":[589],"tags":[604],"aioseseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.aqycmy.com\/wp-json\/wp\/v2\/posts\/28742"}],"collection":[{"href":"https:\/\/www.aqycmy.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.aqycmy.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.aqycmy.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.aqycmy.com\/wp-json\/wp\/v2\/comments?post=28742"}],"version-history":[{"count":7,"href":"https:\/\/www.aqycmy.com\/wp-json\/wp\/v2\/posts\/28742\/revisions"}],"predecessor-version":[{"id":42073,"href":"https:\/\/www.aqycmy.com\/wp-json\/wp\/v2\/posts\/28742\/revisions\/42073"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.aqycmy.com\/wp-json\/"}],"wp:attachment":[{"href":"https:\/\/www.aqycmy.com\/wp-json\/wp\/v2\/media?parent=28742"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.aqycmy.com\/wp-json\/wp\/v2\/categories?post=28742"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.aqycmy.com\/wp-json\/wp\/v2\/tags?post=28742"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}