{"id":48199,"date":"2024-01-12T05:19:45","date_gmt":"2023-05-20T07:21:41","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e4%bd%bf%e7%94%a8graphql%e5%92%8cprisma%ef%bc%9a%e4%bd%bf%e7%94%a8%e3%80%8eplanetgraphql%e3%80%8f%e5%bf%ab%e9%80%9f%e5%88%9b%e5%bb%bagraphql-api%e8%af%95%e8%af%95%e7%9c%8b\/"},"modified":"2024-05-04T18:00:37","modified_gmt":"2024-05-04T10:00:37","slug":"%e4%bd%bf%e7%94%a8graphql%e5%92%8cprisma%ef%bc%9a%e4%bd%bf%e7%94%a8%e3%80%8eplanetgraphql%e3%80%8f%e5%bf%ab%e9%80%9f%e5%88%9b%e5%bb%bagraphql-api%e8%af%95%e8%af%95%e7%9c%8b","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e4%bd%bf%e7%94%a8graphql%e5%92%8cprisma%ef%bc%9a%e4%bd%bf%e7%94%a8%e3%80%8eplanetgraphql%e3%80%8f%e5%bf%ab%e9%80%9f%e5%88%9b%e5%bb%bagraphql-api%e8%af%95%e8%af%95%e7%9c%8b\/","title":{"rendered":"\u4f7f\u7528GraphQL\u548cPrisma\uff1a\u4f7f\u7528\u300ePlanetGraphQL\u300f\u5feb\u901f\u521b\u5efaGraphQL API\u8bd5\u8bd5\u770b"},"content":{"rendered":"<h2>\u9996\u5148<\/h2>\n<p>\u672c\u6b21\u5c06\u4ecb\u7ecd\u5728\u5e94\u7528\u5f00\u53d1\u4e2d\u4f7f\u7528GraphQL API\u5b9e\u73b0\u6240\u4f7f\u7528\u7684\u5e93\u3002<br \/>\n\u6240\u4ecb\u7ecd\u7684\u5e93\u662f\u300ePlanetGraphQL\u300f\u3002<\/p>\n<h3>PlanetGraphQL\u7684\u7279\u70b9<\/h3>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Node.js\u7528ORM\u306ePrisma\u3068\u89aa\u548c\u6027\u304c\u9ad8\u304f\u3001DB\u306e\u30e2\u30c7\u30eb\u5b9a\u7fa9\u304b\u3089Code First\u3067\u7c21\u5358\u306bGraphQL\u30b9\u30ad\u30fc\u30de\u306e\u751f\u6210\u30fb\u30ab\u30b9\u30bf\u30de\u30a4\u30ba\u304c\u53ef\u80fd<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u3084\u6a29\u9650\u3001\u30da\u30fc\u30b8\u30cd\u30fc\u30b7\u30e7\u30f3\u306a\u3069\u69d8\u3005\u306a\u6a5f\u80fd\u306b\u5bfe\u5fdc<\/ul>\n<h2>\u8ba9\u6211\u4eec\u5b9e\u73b0\u4e00\u4e2a\u7b80\u5355\u7684GraphQL API\u3002<\/h2>\n<p>\u8ba9\u6211\u4eec\u6765\u770b\u4e00\u4e0b\u5982\u4f55\u901a\u8fc7\u4f7f\u7528\u5e93\u6765\u5b9e\u73b0GraphQL API\u7684\u6d41\u7a0b\u3002<br \/>\n\u503c\u5f97\u6ce8\u610f\u7684\u662f\uff0c\u672c\u6b21\u6211\u4eec\u5c06\u6839\u636ePlanetGraphQL\u7684\u793a\u4f8b\u6765\u5927\u81f4\u4e86\u89e3\u6982\u8ff0\u3002<\/p>\n<h3>\u5b89\u88c5<\/h3>\n<pre class=\"post-pre\"><code>npm install @planet-graphql\/core\r\n<\/code><\/pre>\n<h3>GraphQL\u6a21\u5f0f\u7684\u5b9a\u4e49<\/h3>\n<p>\u6211\u5011\u5c07\u521d\u59cb\u5316 Prisma\uff0c\u4e26\u5c0d\u65bc\u6a21\u5f0f\u6a94\u6848\u9032\u884c\u5beb\u5165 DB \u6a21\u578b\u7684\u5b9a\u7fa9\u3002<\/p>\n<pre class=\"post-pre\"><code>generator client {\r\n  provider = \"prisma-client-js\"\r\n}\r\n\r\ndatasource db {\r\n  provider = \"postgresql\"\r\n  url      = env(\"DATABASE_URL\")\r\n}\r\n\r\n\/\/ PlanetGraphQL\u306e\u30b8\u30a7\u30cd\u30ec\u30fc\u30bf\u3092\u8a2d\u5b9a\r\ngenerator pg {\r\n  provider = \"planet-graphql\"\r\n}\r\n\r\n\/\/ User\u30e2\u30c7\u30eb\u3092\u5b9a\u7fa9\r\nmodel User {\r\n  id        Int      @id @default(autoincrement())\r\n  email     String\r\n  firstName String\r\n  lastName  String\r\n  posts     Post[]\r\n  createdAt DateTime @default(now())\r\n  updatedAt DateTime @updatedAt\r\n}\r\n\r\n\/\/ Post\u30e2\u30c7\u30eb\u3092\u5b9a\u7fa9\r\nmodel Post {\r\n  id        Int      @id @default(autoincrement())\r\n  title     String\r\n  content   String\r\n  isPublic  Boolean\r\n  author    User     @relation(fields: [authorId], references: [id])\r\n  authorId  Int\r\n  createdAt DateTime @default(now())\r\n  updatedAt DateTime @updatedAt\r\n  tags      String[]\r\n}\r\n<\/code><\/pre>\n<p>\u6211\u5011\u5c07\u5f9e\u9019\u88e1\u958b\u59cb\u4ee5\u7a0b\u5f0f\u78bc\u7684\u65b9\u5f0f\u5b9a\u7fa9GraphQL\u67b6\u69cb\u3002<\/p>\n<p>\u9996\u5148\uff0c\u6211\u4eec\u9700\u8981\u81ea\u5b9a\u4e49\u5e76\u5b9a\u4e49User\u6a21\u578b\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">export<\/span> <span class=\"kd\">const<\/span> <span class=\"nx\">user<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">pgpc<\/span><span class=\"p\">.<\/span><span class=\"nf\">redefine<\/span><span class=\"p\">({<\/span>\r\n  <span class=\"na\">name<\/span><span class=\"p\">:<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">User<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span>\r\n  <span class=\"na\">fields<\/span><span class=\"p\">:<\/span> <span class=\"p\">(<\/span><span class=\"nx\">f<\/span><span class=\"p\">,<\/span> <span class=\"nx\">b<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">({<\/span>\r\n    <span class=\"p\">...<\/span><span class=\"nf\">omit<\/span><span class=\"p\">(<\/span><span class=\"nx\">f<\/span><span class=\"p\">,<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">email<\/span><span class=\"dl\">'<\/span><span class=\"p\">),<\/span>\r\n    <span class=\"na\">posts<\/span><span class=\"p\">:<\/span> <span class=\"nx\">f<\/span><span class=\"p\">.<\/span><span class=\"nx\">posts<\/span><span class=\"p\">.<\/span><span class=\"nf\">prismaArgs<\/span><span class=\"p\">(()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nx\">args<\/span><span class=\"p\">.<\/span><span class=\"nx\">findManyPost<\/span><span class=\"p\">.<\/span><span class=\"nf\">build<\/span><span class=\"p\">()),<\/span>\r\n    <span class=\"na\">fullName<\/span><span class=\"p\">:<\/span> <span class=\"nx\">b<\/span><span class=\"p\">.<\/span><span class=\"nf\">string<\/span><span class=\"p\">(),<\/span>\r\n    <span class=\"na\">latestPost<\/span><span class=\"p\">:<\/span> <span class=\"nx\">b<\/span><span class=\"p\">.<\/span><span class=\"nf\">object<\/span><span class=\"p\">(()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nx\">postWithoutRelation<\/span><span class=\"p\">).<\/span><span class=\"nf\">nullable<\/span><span class=\"p\">(),<\/span>\r\n  <span class=\"p\">}),<\/span>\r\n  <span class=\"na\">relations<\/span><span class=\"p\">:<\/span> <span class=\"p\">()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nf\">getRelations<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">User<\/span><span class=\"dl\">'<\/span><span class=\"p\">),<\/span>\r\n<span class=\"p\">})<\/span>\r\n<\/code><\/pre>\n<p>\u6b64\u5916\uff0c\u901a\u8fc7\u91cd\u65b0\u5b9a\u4e49\u65b9\u6cd5\u6765\u5b9a\u4e49\u81ea\u5b9a\u4e49\u6a21\u578b\uff0c\u4f46\u662f\u6bcf\u4e2a\u5c5e\u6027\u8868\u793a\u4ee5\u4e0b\u5185\u5bb9\u3002<\/p>\n<p>name: \u30e2\u30c7\u30eb\u540d<\/p>\n<p>fields: User\u30e2\u30c7\u30eb\u306efield<\/p>\n<p>relations: \u30ea\u30ec\u30fc\u30b7\u30e7\u30f3\u306e\u578b\u3092\u6b63\u3057\u304f\u63a8\u8ad6\u3059\u308b\u305f\u3081\u306b\u5fc5\u8981\u306a\u3082\u306e\uff08\u4eca\u56de\u306e\u5834\u5408\u306f\u3001posts\u30d5\u30a3\u30fc\u30eb\u30c9\u306e\u578b\u3092\u5f8c\u8ff0\u3059\u308b\u518d\u5b9a\u7fa9\u3057\u305fPost\u306e\u578b\u3068\u3057\u3066\u63a8\u8ad6\u3055\u308c\u308b\uff09<\/p>\n<p>\u5728GraphQL\u4e2d\uff0c\u53ef\u4ee5\u5728fields\u4e2d\u5b9a\u4e49\u6a21\u578b\u7684\u5b57\u6bb5\u3002\u7279\u522b\u662f\u53ef\u4ee5\u6dfb\u52a0\u3001\u4fee\u6539\u548c\u5220\u9664\u5b57\u6bb5\uff0c\u53ef\u4ee5\u6ee1\u8db3\u8bb8\u591a\u4e0d\u540c\u7684\u8981\u6c42\uff0c\u5982\u5728\u6570\u636e\u5e93\u4e2d\u4e0d\u9700\u8981\u4f46\u5728GraphQL\u6a21\u5f0f\u4e2d\u5e0c\u671b\u6709\u7684\u60c5\u51b5\uff0c\u53cd\u4e4b\u4ea6\u7136\u3002<\/p>\n<p>\u5728\u4e0a\u8ff0\u7684User\u6a21\u578b\u4e2d\uff0c\u6267\u884c\u4e86\u4ee5\u4e0b4\u4e2a\u64cd\u4f5c\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u5143\u3005\u306eemail\u3068\u3044\u3046\u30d5\u30a3\u30fc\u30eb\u30c9\u3092\u524a\u9664<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u5143\u3005\u306eposts\u3068\u3044\u3046\u30d5\u30a3\u30fc\u30eb\u30c9\u3092\u5909\u66f4<\/ul>\n<\/li>\n<\/ul>\n<p>fullName\u3068\u3044\u3046string\u578b\u306e\u30d5\u30a3\u30fc\u30eb\u30c9\u3092\u65b0\u305f\u306b\u8ffd\u52a0<\/p>\n<p>latestPost\u3068\u3044\u3046\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u578b\u306e\u30d5\u30a3\u30fc\u30eb\u30c9\u3092\u65b0\u305f\u306b\u8ffd\u52a0<\/p>\n<p>\u8ba9\u6211\u4eec\u9010\u4e2a\u8be6\u7ec6\u770b\u4e00\u4e0b\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"p\">...<\/span><span class=\"nf\">omit<\/span><span class=\"p\">(<\/span><span class=\"nx\">f<\/span><span class=\"p\">,<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">email<\/span><span class=\"dl\">'<\/span><span class=\"p\">),<\/span>\r\n<\/code><\/pre>\n<p>\u5728GraphQL\u6a21\u5f0f\u4e2d\uff0c\u5df2\u7ecf\u5220\u9664\u4e86\u539f\u5148\u5728DB\u6a21\u578b\u4e2d\u5b58\u5728\u7684\u540d\u4e3a&#8221;email&#8221;\u7684\u5b57\u6bb5\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nx\">posts<\/span><span class=\"p\">:<\/span> <span class=\"nx\">f<\/span><span class=\"p\">.<\/span><span class=\"nx\">posts<\/span><span class=\"p\">.<\/span><span class=\"nf\">prismaArgs<\/span><span class=\"p\">(()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nx\">args<\/span><span class=\"p\">.<\/span><span class=\"nx\">findManyPost<\/span><span class=\"p\">.<\/span><span class=\"nf\">build<\/span><span class=\"p\">()),<\/span>\r\n<\/code><\/pre>\n<p>\u4e3a\u4e86\u5b57\u6bb5&#8221;posts&#8221;\uff0c\u5728\u539f\u59cb\u7684&#8221;posts&#8221;\u5b57\u6bb5\u4e0a\u4f7f\u7528prismaArgs()\u6dfb\u52a0\u53c2\u6570args\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nx\">fullName<\/span><span class=\"p\">:<\/span> <span class=\"nx\">b<\/span><span class=\"p\">.<\/span><span class=\"nf\">string<\/span><span class=\"p\">(),<\/span>\r\n<\/code><\/pre>\n<p>\u6211\u6b63\u5728\u6dfb\u52a0\u4e00\u4e2a\u540d\u4e3afullName\u7684\u65b0\u5b57\u6bb5\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nx\">latestPost<\/span><span class=\"p\">:<\/span> <span class=\"nx\">b<\/span><span class=\"p\">.<\/span><span class=\"nf\">object<\/span><span class=\"p\">(()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nx\">postWithoutRelation<\/span><span class=\"p\">).<\/span><span class=\"nf\">nullable<\/span><span class=\"p\">(),<\/span>\r\n<\/code><\/pre>\n<p>\u6211\u6dfb\u52a0\u4e86\u4e00\u4e2a\u540d\u4e3alatestPost\u7684\u65b0\u5b57\u6bb5\uff0c\u5e76\u5c06\u5176\u4e0e\u63a5\u4e0b\u6765\u63d0\u5230\u7684postWithoutRelation\u7684\u53e6\u4e00\u4e2a\u6a21\u578b\u76f8\u5173\u8054\u3002<br \/>\n\u6b64\u5916\uff0c\u7531\u4e8e\u4f7f\u7528\u4e86nullable()\uff0c\u8be5\u5b57\u6bb5\u53ef\u4ee5\u63a5\u53d7null\u503c\u3002<\/p>\n<p>\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u5c06\u5b9a\u4e49\u4e00\u4e2a\u540d\u4e3aPost\u7684\u6a21\u578b\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">export<\/span> <span class=\"kd\">const<\/span> <span class=\"nx\">post<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">pgpc<\/span><span class=\"p\">.<\/span><span class=\"nf\">redefine<\/span><span class=\"p\">({<\/span>\r\n  <span class=\"na\">name<\/span><span class=\"p\">:<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">Post<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span>\r\n  <span class=\"na\">fields<\/span><span class=\"p\">:<\/span> <span class=\"p\">(<\/span><span class=\"nx\">f<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">({<\/span>\r\n    <span class=\"p\">...<\/span><span class=\"nx\">f<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"na\">attachments<\/span><span class=\"p\">:<\/span> <span class=\"nx\">f<\/span><span class=\"p\">.<\/span><span class=\"nx\">attachments<\/span><span class=\"p\">.<\/span><span class=\"nf\">relay<\/span><span class=\"p\">(),<\/span>\r\n  <span class=\"p\">}),<\/span>\r\n  <span class=\"na\">relations<\/span><span class=\"p\">:<\/span> <span class=\"p\">()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nf\">getRelations<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">Post<\/span><span class=\"dl\">'<\/span><span class=\"p\">),<\/span>\r\n<span class=\"p\">})<\/span>\r\n\r\n<span class=\"k\">export<\/span> <span class=\"kd\">const<\/span> <span class=\"nx\">postWithoutRelation<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">post<\/span><span class=\"p\">.<\/span><span class=\"nf\">copy<\/span><span class=\"p\">({<\/span>\r\n  <span class=\"na\">name<\/span><span class=\"p\">:<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">PostWithoutRelation<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span>\r\n  <span class=\"na\">fields<\/span><span class=\"p\">:<\/span> <span class=\"p\">(<\/span><span class=\"nx\">f<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nf\">omit<\/span><span class=\"p\">(<\/span><span class=\"nx\">f<\/span><span class=\"p\">,<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">author<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">attachments<\/span><span class=\"dl\">'<\/span><span class=\"p\">),<\/span>\r\n<span class=\"p\">})<\/span>\r\n<\/code><\/pre>\n<p>\u4e0eUser\u6a21\u578b\u7c7b\u4f3c\uff0c\u6211\u4eec\u5728\u5b57\u6bb5\uff08fields\uff09\u4e2d\u5b9a\u4e49GraphQL\u4e2d\u7684Post\u6a21\u578b\u7684\u5b57\u6bb5\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nx\">attachments<\/span><span class=\"p\">:<\/span> <span class=\"nx\">f<\/span><span class=\"p\">.<\/span><span class=\"nx\">attachments<\/span><span class=\"p\">.<\/span><span class=\"nf\">relay<\/span><span class=\"p\">(),<\/span>\r\n<\/code><\/pre>\n<p>\u4f7f\u7528relay()\u53ef\u4ee5\u91cd\u65b0\u5b9a\u4e49\u4e0e\u540e\u7eed\u7684attachments\u6a21\u578b\u76f8\u5173\u8054\u7684\u5b57\u6bb5\uff0c\u4ee5\u652f\u6301\u5206\u9875\u3002<\/p>\n<p>\u6b64\u5916\uff0c\u60a8\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u65b9\u5f0f\u6765\u5b9a\u4e49\u65b0\u6a21\u578b\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">export<\/span> <span class=\"kd\">const<\/span> <span class=\"nx\">postWithoutRelation<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">post<\/span><span class=\"p\">.<\/span><span class=\"nf\">copy<\/span><span class=\"p\">({<\/span>\r\n  <span class=\"na\">name<\/span><span class=\"p\">:<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">PostWithoutRelation<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span>\r\n  <span class=\"na\">fields<\/span><span class=\"p\">:<\/span> <span class=\"p\">(<\/span><span class=\"nx\">f<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nf\">omit<\/span><span class=\"p\">(<\/span><span class=\"nx\">f<\/span><span class=\"p\">,<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">author<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">attachments<\/span><span class=\"dl\">'<\/span><span class=\"p\">),<\/span>\r\n<span class=\"p\">})<\/span>\r\n<\/code><\/pre>\n<p>\u8fd9\u6b21\u6211\u4eec\u4f7f\u7528copy()\u51fd\u6570\uff0c\u5728\u5229\u7528\u5df2\u7ecf\u5b9a\u4e49\u7684post\u7684\u57fa\u7840\u4e0a\uff0c\u8fdb\u884c\u5b57\u6bb5\u7684\u5b9a\u5236\u5316\u5b9a\u4e49\u3002<\/p>\n<p>\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u5c06\u540c\u6837\u5b9a\u4e49attachments\u6a21\u578b\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">export<\/span> <span class=\"kd\">const<\/span> <span class=\"nx\">attachmentWithoutRelation<\/span> <span class=\"o\">=<\/span> <span class=\"p\">()<\/span> <span class=\"o\">=&gt;<\/span>\r\n  <span class=\"nx\">objects<\/span><span class=\"p\">.<\/span><span class=\"nx\">Attachment<\/span><span class=\"p\">.<\/span><span class=\"nf\">copy<\/span><span class=\"p\">({<\/span>\r\n    <span class=\"na\">name<\/span><span class=\"p\">:<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">AttachmentWithoutRelation<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"na\">fields<\/span><span class=\"p\">:<\/span> <span class=\"p\">(<\/span><span class=\"nx\">f<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nf\">omit<\/span><span class=\"p\">(<\/span><span class=\"nx\">f<\/span><span class=\"p\">,<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">post<\/span><span class=\"dl\">'<\/span><span class=\"p\">),<\/span>\r\n  <span class=\"p\">})<\/span>\r\n<\/code><\/pre>\n<h3>\u89e3\u6790\u5668\u7684\u5b9a\u4e49<\/h3>\n<p>\u9996\u5148\uff0c\u6211\u4eec\u5c06\u5728\u89e3\u6790\u5668\u4e2d\u5b9a\u4e49\u5982\u4f55\u64cd\u4f5c\u4e4b\u524d\u5728User\u6a21\u578b\u4e2d\u6dfb\u52a0\u7684fullName\u548clatestPost\u5b57\u6bb5\u7684\u6570\u636e\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nx\">user<\/span><span class=\"p\">.<\/span><span class=\"nf\">implement<\/span><span class=\"p\">((<\/span><span class=\"nx\">f<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">({<\/span>\r\n  <span class=\"na\">fullName<\/span><span class=\"p\">:<\/span> <span class=\"nx\">f<\/span><span class=\"p\">.<\/span><span class=\"nx\">fullName<\/span><span class=\"p\">.<\/span><span class=\"nf\">resolve<\/span><span class=\"p\">(({<\/span> <span class=\"nx\">source<\/span> <span class=\"p\">})<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nx\">source<\/span><span class=\"p\">.<\/span><span class=\"nx\">firstName<\/span> <span class=\"o\">+<\/span> <span class=\"nx\">source<\/span><span class=\"p\">.<\/span><span class=\"nx\">lastName<\/span><span class=\"p\">),<\/span>\r\n  <span class=\"na\">latestPost<\/span><span class=\"p\">:<\/span> <span class=\"nx\">f<\/span><span class=\"p\">.<\/span><span class=\"nx\">latestPost<\/span><span class=\"p\">.<\/span><span class=\"nf\">resolve<\/span><span class=\"p\">((<\/span><span class=\"nx\">params<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">return<\/span> <span class=\"nx\">pg<\/span><span class=\"p\">.<\/span><span class=\"nf\">dataloader<\/span><span class=\"p\">(<\/span><span class=\"nx\">params<\/span><span class=\"p\">,<\/span> <span class=\"k\">async <\/span><span class=\"p\">(<\/span><span class=\"nx\">userList<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\r\n      <span class=\"kd\">const<\/span> <span class=\"na\">posts<\/span><span class=\"p\">:<\/span> <span class=\"kr\">any<\/span><span class=\"p\">[]<\/span> <span class=\"o\">=<\/span> <span class=\"k\">await<\/span> <span class=\"nx\">prisma<\/span><span class=\"p\">.<\/span><span class=\"nx\">$queryRaw<\/span><span class=\"s2\">`\r\n        SELECT *\r\n        FROM \"Post\"\r\n        WHERE\r\n          \"authorId\" IN (<\/span><span class=\"p\">${<\/span><span class=\"nx\">Prisma<\/span><span class=\"p\">.<\/span><span class=\"nf\">join<\/span><span class=\"p\">(<\/span><span class=\"nx\">userList<\/span><span class=\"p\">.<\/span><span class=\"nf\">map<\/span><span class=\"p\">((<\/span><span class=\"nx\">x<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nx\">x<\/span><span class=\"p\">.<\/span><span class=\"nx\">id<\/span><span class=\"p\">))}<\/span><span class=\"s2\">) AND\r\n          NOT EXISTS (\r\n            SELECT *\r\n            FROM \"Post\" AS InnerPost\r\n            WHERE InnerPost.\"authorId\" = \"Post\".\"authorId\" AND InnerPost.\"createdAt\" &gt; \"Post\".\"createdAt\"\r\n          )\r\n      `<\/span>\r\n      <span class=\"k\">return<\/span> <span class=\"nx\">userList<\/span><span class=\"p\">.<\/span><span class=\"nf\">map<\/span><span class=\"p\">((<\/span><span class=\"nx\">user<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nx\">posts<\/span><span class=\"p\">.<\/span><span class=\"nf\">find<\/span><span class=\"p\">((<\/span><span class=\"nx\">x<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nx\">x<\/span><span class=\"p\">.<\/span><span class=\"nx\">authorId<\/span> <span class=\"o\">===<\/span> <span class=\"nx\">user<\/span><span class=\"p\">.<\/span><span class=\"nx\">id<\/span><span class=\"p\">)<\/span> <span class=\"o\">??<\/span> <span class=\"kc\">null<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"p\">})<\/span>\r\n  <span class=\"p\">}),<\/span>\r\n<span class=\"p\">}))<\/span>\r\n<\/code><\/pre>\n<p>\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u53ef\u4ee5\u4f7f\u7528resolve()\u6765\u5b9a\u4e49\u3002<\/p>\n<p>\u8ba9\u6211\u4eec\u5206\u522b\u770b\u4e00\u4e0b\u6bcf\u4e2a\u5b9a\u4e49\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nx\">fullName<\/span><span class=\"p\">:<\/span> <span class=\"nx\">f<\/span><span class=\"p\">.<\/span><span class=\"nx\">fullName<\/span><span class=\"p\">.<\/span><span class=\"nf\">resolve<\/span><span class=\"p\">(({<\/span> <span class=\"nx\">source<\/span> <span class=\"p\">})<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nx\">source<\/span><span class=\"p\">.<\/span><span class=\"nx\">firstName<\/span> <span class=\"o\">+<\/span> <span class=\"nx\">source<\/span><span class=\"p\">.<\/span><span class=\"nx\">lastName<\/span><span class=\"p\">),<\/span>\r\n<\/code><\/pre>\n<p>fullName\u5b9a\u4e49\u4e86\u5728API\u54cd\u5e94\u65f6\u5c06firstName\u548clastName\u5408\u5e76\u5e76\u53d1\u9001\u7684\u6570\u636e\u64cd\u4f5c\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nx\">latestPost<\/span><span class=\"p\">:<\/span> <span class=\"nx\">f<\/span><span class=\"p\">.<\/span><span class=\"nx\">latestPost<\/span><span class=\"p\">.<\/span><span class=\"nf\">resolve<\/span><span class=\"p\">((<\/span><span class=\"nx\">params<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"k\">return<\/span> <span class=\"nx\">pg<\/span><span class=\"p\">.<\/span><span class=\"nf\">dataloader<\/span><span class=\"p\">(<\/span><span class=\"nx\">params<\/span><span class=\"p\">,<\/span> <span class=\"k\">async <\/span><span class=\"p\">(<\/span><span class=\"nx\">userList<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"kd\">const<\/span> <span class=\"na\">posts<\/span><span class=\"p\">:<\/span> <span class=\"kr\">any<\/span><span class=\"p\">[]<\/span> <span class=\"o\">=<\/span> <span class=\"k\">await<\/span> <span class=\"nx\">prisma<\/span><span class=\"p\">.<\/span><span class=\"nx\">$queryRaw<\/span><span class=\"s2\">`\r\n      SELECT *\r\n      FROM \"Post\"\r\n      WHERE\r\n        \"authorId\" IN (<\/span><span class=\"p\">${<\/span><span class=\"nx\">Prisma<\/span><span class=\"p\">.<\/span><span class=\"nf\">join<\/span><span class=\"p\">(<\/span><span class=\"nx\">userList<\/span><span class=\"p\">.<\/span><span class=\"nf\">map<\/span><span class=\"p\">((<\/span><span class=\"nx\">x<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nx\">x<\/span><span class=\"p\">.<\/span><span class=\"nx\">id<\/span><span class=\"p\">))}<\/span><span class=\"s2\">) AND\r\n        NOT EXISTS (\r\n          SELECT *\r\n          FROM \"Post\" AS InnerPost\r\n          WHERE InnerPost.\"authorId\" = \"Post\".\"authorId\" AND InnerPost.\"createdAt\" &gt; \"Post\".\"createdAt\"\r\n        )\r\n    `<\/span>\r\n    <span class=\"k\">return<\/span> <span class=\"nx\">userList<\/span><span class=\"p\">.<\/span><span class=\"nf\">map<\/span><span class=\"p\">((<\/span><span class=\"nx\">user<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nx\">posts<\/span><span class=\"p\">.<\/span><span class=\"nf\">find<\/span><span class=\"p\">((<\/span><span class=\"nx\">x<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nx\">x<\/span><span class=\"p\">.<\/span><span class=\"nx\">authorId<\/span> <span class=\"o\">===<\/span> <span class=\"nx\">user<\/span><span class=\"p\">.<\/span><span class=\"nx\">id<\/span><span class=\"p\">)<\/span> <span class=\"o\">??<\/span> <span class=\"kc\">null<\/span><span class=\"p\">)<\/span>\r\n  <span class=\"p\">})<\/span>\r\n<span class=\"p\">}),<\/span>\r\n<\/code><\/pre>\n<p>\u6700\u65b0\u7684Post\u4ece\u6570\u636e\u5e93\u4e2d\u83b7\u53d6\uff0c\u5e76\u5b9a\u4e49\u4e86\u4e00\u4e2a\u6570\u636e\u64cd\u4f5c\u5c06\u5176\u8fd4\u56de\u7ed9\u6240\u6709\u7684User\u3002\u6b64\u5916\uff0c\u4f7f\u7528dataloder()\u53ef\u4ee5\u4e00\u6b21\u6027\u4ece\u6570\u636e\u5e93\u4e2d\u83b7\u53d6\u76ee\u6807User\u7684\u6570\u636e\uff0c\u5728\u6bcf\u4e2aUser\u7684\u6570\u636e\u64cd\u4f5c\u4e2d\u90fd\u4e0d\u4f1a\u53d1\u751f\u91cd\u590d\u7684\u6570\u636e\u5e93\u8bbf\u95ee\uff0c\u4ece\u800c\u5b9e\u73b0\u4e86\u5904\u7406\u7684\u6548\u7387\u5316\u3002<\/p>\n<p>\u7531\u4e8e\u5df2\u7ecf\u5b8c\u6210\u4e86\u4e0e\u65b0\u6dfb\u52a0\u5b57\u6bb5\u76f8\u5173\u7684\u89e3\u6790\u5668\u5b9a\u4e49\uff0c\u56e0\u6b64\u63a5\u4e0b\u6765\u5c06\u5b9a\u4e49\u67e5\u8be2\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">export<\/span> <span class=\"kd\">const<\/span> <span class=\"nx\">usersQuery<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">pg<\/span><span class=\"p\">.<\/span><span class=\"nf\">query<\/span><span class=\"p\">({<\/span>\r\n  <span class=\"na\">name<\/span><span class=\"p\">:<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">users<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span>\r\n  <span class=\"na\">field<\/span><span class=\"p\">:<\/span> <span class=\"p\">(<\/span><span class=\"nx\">b<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span>\r\n    <span class=\"nx\">b<\/span>\r\n      <span class=\"p\">.<\/span><span class=\"nf\">object<\/span><span class=\"p\">(()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nx\">user<\/span><span class=\"p\">)<\/span>\r\n      <span class=\"p\">.<\/span><span class=\"nf\">relay<\/span><span class=\"p\">()<\/span>\r\n      <span class=\"p\">.<\/span><span class=\"nf\">relayCursor<\/span><span class=\"p\">((<\/span><span class=\"nx\">node<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">({<\/span> <span class=\"na\">id<\/span><span class=\"p\">:<\/span> <span class=\"nx\">node<\/span><span class=\"p\">.<\/span><span class=\"nx\">id<\/span> <span class=\"p\">}))<\/span>\r\n      <span class=\"p\">.<\/span><span class=\"nf\">relayOrderBy<\/span><span class=\"p\">({<\/span> <span class=\"na\">createdAt<\/span><span class=\"p\">:<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">desc<\/span><span class=\"dl\">'<\/span> <span class=\"p\">})<\/span>\r\n      <span class=\"p\">.<\/span><span class=\"nf\">relayTotalCount<\/span><span class=\"p\">(<\/span><span class=\"k\">async <\/span><span class=\"p\">()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"k\">await<\/span> <span class=\"nx\">prisma<\/span><span class=\"p\">.<\/span><span class=\"nx\">user<\/span><span class=\"p\">.<\/span><span class=\"nf\">count<\/span><span class=\"p\">())<\/span>\r\n      <span class=\"p\">.<\/span><span class=\"nf\">auth<\/span><span class=\"p\">(({<\/span> <span class=\"nx\">context<\/span> <span class=\"p\">})<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nx\">context<\/span><span class=\"p\">.<\/span><span class=\"nx\">isAdmin<\/span><span class=\"p\">)<\/span>\r\n      <span class=\"p\">.<\/span><span class=\"nf\">resolve<\/span><span class=\"p\">(<\/span><span class=\"k\">async <\/span><span class=\"p\">({<\/span> <span class=\"nx\">prismaArgs<\/span> <span class=\"p\">})<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"k\">return<\/span> <span class=\"k\">await<\/span> <span class=\"nx\">prisma<\/span><span class=\"p\">.<\/span><span class=\"nx\">user<\/span><span class=\"p\">.<\/span><span class=\"nf\">findMany<\/span><span class=\"p\">(<\/span><span class=\"nx\">prismaArgs<\/span><span class=\"p\">)<\/span>\r\n      <span class=\"p\">}),<\/span>\r\n<span class=\"p\">})<\/span>\r\n<\/code><\/pre>\n<p>\u4f7f\u7528query()\u51fd\u6570\u6765\u5b9a\u4e49\u67e5\u8be2\u3002<\/p>\n<p>\u6b64\u5916\uff0c\u5728\u5b57\u6bb5\u8bbe\u7f6e\u4e2d\uff0c\u6b64\u6b21\u6211\u4eec\u4f7f\u7528\u4e86\u4ee5\u4e0b\u7684\u65b9\u6cd5\u3002<\/p>\n<p>object(): query\u5bfe\u8c61\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u578b\u3092\u8a2d\u5b9a\u3059\u308b<\/p>\n<p>relay(): \u8a2d\u5b9a\u3057\u305f\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u578b\u3092\u30da\u30fc\u30b8\u30cd\u30fc\u30b7\u30e7\u30f3\u306b\u5bfe\u5fdc\u3059\u308brelay\u5f62\u5f0f\u306b\u5909\u63db\u3059\u308b<\/p>\n<p>relayCursor(): relay\u5f62\u5f0f\u3067\u7528\u3044\u308bCursor\u53e5\u3092\u8a2d\u5b9a\u3059\u308b<\/p>\n<p>relayOrderBy(): relay\u5f62\u5f0f\u3067\u7528\u3044\u308bOrderBy\u53e5\u3092\u8a2d\u5b9a\u3059\u308b<\/p>\n<p>relayTotalCount(): relay\u5f62\u5f0f\u3067\u7528\u3044\u308bTotalCount\u30d5\u30a3\u30fc\u30eb\u30c9\u3092\u8a2d\u5b9a\u3059\u308b<\/p>\n<p>auth(): query\u306b\u5bfe\u3059\u308b\u5b9f\u884c\u6a29\u9650\u3092\u8a2d\u5b9a\u3059\u308b<\/p>\n<p>resolve(): query\u306e\u30ea\u30be\u30eb\u30d0\u3092\u8a2d\u5b9a\u3059\u308b<\/p>\n<p>\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u5c06\u4e3a Post \u5b9a\u4e49\u67e5\u8be2\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">export<\/span> <span class=\"kd\">const<\/span> <span class=\"nx\">postsQuery<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">pg<\/span><span class=\"p\">.<\/span><span class=\"nf\">query<\/span><span class=\"p\">({<\/span>\r\n  <span class=\"na\">name<\/span><span class=\"p\">:<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">post<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span>\r\n  <span class=\"na\">field<\/span><span class=\"p\">:<\/span> <span class=\"p\">(<\/span><span class=\"nx\">b<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span>\r\n    <span class=\"nx\">b<\/span>\r\n      <span class=\"p\">.<\/span><span class=\"nf\">object<\/span><span class=\"p\">(()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nx\">post<\/span><span class=\"p\">)<\/span>\r\n      <span class=\"p\">.<\/span><span class=\"nf\">prismaArgs<\/span><span class=\"p\">(()<\/span> <span class=\"o\">=&gt;<\/span>\r\n        <span class=\"nx\">args<\/span><span class=\"p\">.<\/span><span class=\"nx\">findFirstPost<\/span>\r\n          <span class=\"p\">.<\/span><span class=\"nf\">edit<\/span><span class=\"p\">((<\/span><span class=\"nx\">f<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">({<\/span>\r\n            <span class=\"na\">where<\/span><span class=\"p\">:<\/span> <span class=\"nx\">f<\/span><span class=\"p\">.<\/span><span class=\"nx\">where<\/span><span class=\"p\">,<\/span>\r\n          <span class=\"p\">}))<\/span>\r\n          <span class=\"p\">.<\/span><span class=\"nf\">build<\/span><span class=\"p\">(),<\/span>\r\n      <span class=\"p\">)<\/span>\r\n      <span class=\"p\">.<\/span><span class=\"nf\">resolve<\/span><span class=\"p\">(<\/span><span class=\"k\">async <\/span><span class=\"p\">({<\/span> <span class=\"nx\">prismaArgs<\/span> <span class=\"p\">})<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"k\">return<\/span> <span class=\"k\">await<\/span> <span class=\"nx\">prisma<\/span><span class=\"p\">.<\/span><span class=\"nx\">post<\/span><span class=\"p\">.<\/span><span class=\"nf\">findFirstOrThrow<\/span><span class=\"p\">(<\/span><span class=\"nx\">prismaArgs<\/span><span class=\"p\">)<\/span>\r\n      <span class=\"p\">}),<\/span>\r\n<span class=\"p\">})<\/span>\r\n<\/code><\/pre>\n<p>\u8fd9\u91cc\u4f7f\u7528prismaArgs()\u6765\u8bbe\u7f6e\u5728GraphQL\u4e0a\u8c03\u7528\u67e5\u8be2\u65f6\u7684\u53c2\u6570\u3002<br \/>\n\u8fd9\u4e9b\u53c2\u6570\u53ef\u4ee5\u4f5c\u4e3a\u53c2\u6570\u4f20\u9012\u7ed9resolve()\uff0c\u5e76\u53ef\u5728\u89e3\u6790\u5668\u5b9a\u4e49\u4e2d\u4f7f\u7528\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"p\">.<\/span><span class=\"nf\">resolve<\/span><span class=\"p\">(<\/span><span class=\"k\">async <\/span><span class=\"p\">({<\/span> <span class=\"nx\">prismaArgs<\/span> <span class=\"p\">})<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"k\">return<\/span> <span class=\"k\">await<\/span> <span class=\"nx\">prisma<\/span><span class=\"p\">.<\/span><span class=\"nx\">post<\/span><span class=\"p\">.<\/span><span class=\"nf\">findFirstOrThrow<\/span><span class=\"p\">(<\/span><span class=\"nx\">prismaArgs<\/span><span class=\"p\">)<\/span>\r\n<span class=\"p\">}),<\/span>\r\n<\/code><\/pre>\n<p>prismaArgs\uff08\uff09\u5177\u6709\u4ee5\u4e0b\u7279\u70b9\uff1a\u5982\u679c\u4f20\u9012\u7684\u67e5\u8be2\u5305\u542b\u5173\u7cfb\u5b57\u6bb5\uff0c\u90a3\u4e48include\u5b50\u53e5\u4f1a\u81ea\u52a8\u6307\u5b9a\uff0c\u4ee5\u4ece\u6570\u636e\u5e93\u4e2d\u83b7\u53d6\u5173\u7cfb\u6570\u636e\u3002\u4f8b\u5982\uff0c\u5728\u5f53\u524d\u7684\u5e16\u5b50\u67e5\u8be2\u4e2d\u6307\u5b9a\u4e86\u4f5c\u8005\u5b57\u6bb5\uff0c\u90a3\u4e48\u5c06\u81ea\u52a8\u6307\u5b9ainclude\u5b50\u53e5\u4ee5\u4ece\u6570\u636e\u5e93\u4e2d\u83b7\u53d6\u4e0e\u5e16\u5b50\u76f8\u5173\u7684\u7528\u6237\u6570\u636e\u3002<\/p>\n<p>\u540c\u65f6\uff0c\u901a\u8fc7\u81ea\u5b9a\u4e49\u548c\u6307\u5b9a\u7528\u4e8e\u4f20\u9012\u7ed9PrismaClient\u7684args\uff0c\u53ef\u4ee5\u7b80\u6d01\u5730\u5b9a\u4e49\u89e3\u6790\u5668\uff0c\u5c06prismaArgs\u4f5c\u4e3aresolve\uff08\uff09\u7684\u53c2\u6570\u4f20\u9012\u7ed9Prisma\u7684\u5404\u4e2a\u65b9\u6cd5\u3002<\/p>\n<p>\u53e6\u5916\uff0cPlanetGraphQL\u8fd8\u5177\u6709args\uff08\uff09\u65b9\u6cd5\uff0c\u9664\u4e86prismaArgs\uff08\uff09\u4e4b\u5916\u3002<\/p>\n<p>\u4e0d\u7ba1\u662f\u4f7f\u7528\u54ea\u79cd\u65b9\u6cd5\uff0c\u751f\u6210\u7684GraphQL\u6a21\u5f0f\u90fd\u662f\u76f8\u540c\u7684\u3002\u4f46\u662f\uff0c\u4f7f\u7528args\uff08\uff09\u7684\u8bdd\uff0c\u7531\u4e8e\u6ca1\u6709\u50cfprismaArgs\uff08\uff09\u4e2d\u90a3\u6837\u5bf9Prisma\u8fdb\u884c\u52a8\u6001\u5904\u7406\uff0c\u56e0\u6b64\u53ef\u4ee5\u5728resolve\uff08\uff09\u5185\u4ee5\u901a\u7528\u7684GraphQL\u5c01\u95ed\u5904\u7406\u65b9\u5f0f\u7f16\u5199\u4ee3\u7801\u3002<\/p>\n<p>\u5173\u4e8ePost\uff0c\u8ba9\u6211\u4eec\u4e5f\u6765\u5b9a\u4e49\u4e00\u4e0bmutation\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">export<\/span> <span class=\"kd\">const<\/span> <span class=\"nx\">createPostMutation<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">pg<\/span><span class=\"p\">.<\/span><span class=\"nf\">mutation<\/span><span class=\"p\">({<\/span>\r\n  <span class=\"na\">name<\/span><span class=\"p\">:<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">createPost<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span>\r\n  <span class=\"na\">field<\/span><span class=\"p\">:<\/span> <span class=\"p\">(<\/span><span class=\"nx\">b<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span>\r\n    <span class=\"nx\">b<\/span>\r\n      <span class=\"p\">.<\/span><span class=\"nf\">object<\/span><span class=\"p\">(()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nx\">postWithoutRelation<\/span><span class=\"p\">)<\/span>\r\n      <span class=\"p\">.<\/span><span class=\"nf\">args<\/span><span class=\"p\">(()<\/span> <span class=\"o\">=&gt;<\/span>\r\n        <span class=\"nx\">args<\/span><span class=\"p\">.<\/span><span class=\"nx\">createOnePost<\/span>\r\n          <span class=\"p\">.<\/span><span class=\"nf\">edit<\/span><span class=\"p\">((<\/span><span class=\"nx\">f<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">({<\/span>\r\n            <span class=\"na\">input<\/span><span class=\"p\">:<\/span> <span class=\"nx\">f<\/span><span class=\"p\">.<\/span><span class=\"nx\">data<\/span>\r\n              <span class=\"p\">.<\/span><span class=\"nf\">select<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">PostUncheckedCreateInput<\/span><span class=\"dl\">'<\/span><span class=\"p\">)<\/span>\r\n              <span class=\"p\">.<\/span><span class=\"nf\">edit<\/span><span class=\"p\">((<\/span><span class=\"nx\">f<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">({<\/span>\r\n                <span class=\"na\">title<\/span><span class=\"p\">:<\/span> <span class=\"nx\">f<\/span><span class=\"p\">.<\/span><span class=\"nx\">title<\/span><span class=\"p\">.<\/span><span class=\"nf\">validation<\/span><span class=\"p\">((<\/span><span class=\"nx\">schema<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nx\">schema<\/span><span class=\"p\">.<\/span><span class=\"nf\">max<\/span><span class=\"p\">(<\/span><span class=\"mi\">20<\/span><span class=\"p\">)),<\/span>\r\n                <span class=\"na\">content<\/span><span class=\"p\">:<\/span> <span class=\"nx\">f<\/span><span class=\"p\">.<\/span><span class=\"nx\">content<\/span><span class=\"p\">,<\/span>\r\n                <span class=\"na\">isPublic<\/span><span class=\"p\">:<\/span> <span class=\"nx\">f<\/span><span class=\"p\">.<\/span><span class=\"nx\">isPublic<\/span><span class=\"p\">.<\/span><span class=\"k\">default<\/span><span class=\"p\">(<\/span><span class=\"kc\">true<\/span><span class=\"p\">),<\/span>\r\n              <span class=\"p\">}))<\/span>\r\n              <span class=\"p\">.<\/span><span class=\"nf\">validation<\/span><span class=\"p\">((<\/span><span class=\"nx\">value<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\r\n                <span class=\"k\">return<\/span> <span class=\"o\">!<\/span><span class=\"p\">(<\/span><span class=\"nx\">value<\/span><span class=\"p\">.<\/span><span class=\"nx\">title<\/span><span class=\"p\">.<\/span><span class=\"nx\">length<\/span> <span class=\"o\">===<\/span> <span class=\"mi\">0<\/span> <span class=\"o\">&amp;&amp;<\/span> <span class=\"nx\">value<\/span><span class=\"p\">.<\/span><span class=\"nx\">isPublic<\/span><span class=\"p\">)<\/span>\r\n              <span class=\"p\">}),<\/span>\r\n          <span class=\"p\">}))<\/span>\r\n          <span class=\"p\">.<\/span><span class=\"nf\">build<\/span><span class=\"p\">({<\/span> <span class=\"na\">type<\/span><span class=\"p\">:<\/span> <span class=\"kc\">true<\/span> <span class=\"p\">}),<\/span>\r\n      <span class=\"p\">)<\/span>\r\n      <span class=\"p\">.<\/span><span class=\"nf\">resolve<\/span><span class=\"p\">(<\/span><span class=\"k\">async <\/span><span class=\"p\">({<\/span> <span class=\"nx\">context<\/span><span class=\"p\">,<\/span> <span class=\"nx\">args<\/span> <span class=\"p\">})<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"kd\">const<\/span> <span class=\"nx\">created<\/span> <span class=\"o\">=<\/span> <span class=\"k\">await<\/span> <span class=\"nx\">prisma<\/span><span class=\"p\">.<\/span><span class=\"nx\">post<\/span><span class=\"p\">.<\/span><span class=\"nf\">create<\/span><span class=\"p\">({<\/span>\r\n          <span class=\"na\">data<\/span><span class=\"p\">:<\/span> <span class=\"p\">{<\/span>\r\n            <span class=\"p\">...<\/span><span class=\"nx\">args<\/span><span class=\"p\">.<\/span><span class=\"nx\">input<\/span><span class=\"p\">,<\/span>\r\n            <span class=\"na\">authorId<\/span><span class=\"p\">:<\/span> <span class=\"nx\">context<\/span><span class=\"p\">.<\/span><span class=\"nx\">userId<\/span><span class=\"p\">,<\/span>\r\n          <span class=\"p\">},<\/span>\r\n        <span class=\"p\">})<\/span>\r\n        <span class=\"k\">return<\/span> <span class=\"nx\">created<\/span>\r\n      <span class=\"p\">}),<\/span>\r\n<span class=\"p\">})<\/span>\r\n<\/code><\/pre>\n<p>\u5728\u8fd9\u91cc\uff0c\u4f7f\u7528args()\u6765\u63a5\u6536\u540d\u4e3ainput\u7684\u53c2\u6570\uff0c\u4ee5\u4fbf\u521b\u5efa\u65b0\u7684post\u65f6\u83b7\u53d6\u6240\u9700\u7684\u6bcf\u4e2a\u9879\u76ee\u3002<\/p>\n<p>\u53e6\u5916\uff0c\u5728args()\u4e2d\u4f7f\u7528\u7684args.createOnePost\u662f\u4f7f\u7528\u4e86\u5728builder.ts\u4e2d\u58f0\u660e\u7684\u65b9\u6cd5\uff0c\u5e76\u4e14\u53ef\u4ee5\u901a\u8fc7edit()\u8fdb\u884c\u81ea\u5b9a\u4e49\u8bbe\u7f6e\uff0c\u4f8b\u5982\u9a8c\u8bc1\u548c\u8bbe\u7f6e\u9ed8\u8ba4\u503c\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">export<\/span> <span class=\"kd\">const<\/span> <span class=\"nx\">pgpc<\/span> <span class=\"o\">=<\/span> <span class=\"nf\">getPGPrismaConverter<\/span><span class=\"p\">(<\/span><span class=\"nx\">pg<\/span><span class=\"p\">,<\/span> <span class=\"nx\">dmmf<\/span><span class=\"p\">)<\/span>\r\n<span class=\"k\">export<\/span> <span class=\"kd\">const<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">args<\/span> <span class=\"p\">}<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">pgpc<\/span><span class=\"p\">.<\/span><span class=\"nf\">convertBuilders<\/span><span class=\"p\">()<\/span>\r\n<\/code><\/pre>\n<p>\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u4e5f\u5c06\u9488\u5bf9\u9644\u4ef6\uff08attachment\uff09\u5b9a\u4e49\u53d8\u5f02\uff08mutation\uff09\u7684\u65b9\u5f0f\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">export<\/span> <span class=\"kd\">const<\/span> <span class=\"nx\">createAttachmentMutation<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">pg<\/span><span class=\"p\">.<\/span><span class=\"nf\">mutation<\/span><span class=\"p\">({<\/span>\r\n  <span class=\"na\">name<\/span><span class=\"p\">:<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">createAttachment<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span>\r\n  <span class=\"na\">field<\/span><span class=\"p\">:<\/span> <span class=\"p\">(<\/span><span class=\"nx\">b<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span>\r\n    <span class=\"nx\">b<\/span>\r\n      <span class=\"p\">.<\/span><span class=\"nf\">object<\/span><span class=\"p\">(<\/span><span class=\"nx\">attachmentWithoutRelation<\/span><span class=\"p\">)<\/span>\r\n      <span class=\"p\">.<\/span><span class=\"nf\">args<\/span><span class=\"p\">(()<\/span> <span class=\"o\">=&gt;<\/span>\r\n        <span class=\"nx\">args<\/span><span class=\"p\">.<\/span><span class=\"nx\">createOneAttachment<\/span>\r\n          <span class=\"p\">.<\/span><span class=\"nf\">edit<\/span><span class=\"p\">((<\/span><span class=\"nx\">f<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">({<\/span>\r\n            <span class=\"na\">input<\/span><span class=\"p\">:<\/span> <span class=\"nx\">f<\/span><span class=\"p\">.<\/span><span class=\"nx\">data<\/span><span class=\"p\">.<\/span><span class=\"nf\">select<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">AttachmentUncheckedCreateInput<\/span><span class=\"dl\">'<\/span><span class=\"p\">).<\/span><span class=\"nf\">edit<\/span><span class=\"p\">((<\/span><span class=\"nx\">f<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">({<\/span>\r\n              <span class=\"na\">name<\/span><span class=\"p\">:<\/span> <span class=\"nx\">f<\/span><span class=\"p\">.<\/span><span class=\"nx\">name<\/span><span class=\"p\">,<\/span>\r\n              <span class=\"na\">buffer<\/span><span class=\"p\">:<\/span> <span class=\"nx\">f<\/span><span class=\"p\">.<\/span><span class=\"nx\">buffer<\/span><span class=\"p\">,<\/span>\r\n              <span class=\"na\">meta<\/span><span class=\"p\">:<\/span> <span class=\"nx\">f<\/span><span class=\"p\">.<\/span><span class=\"nx\">meta<\/span><span class=\"p\">,<\/span>\r\n              <span class=\"na\">postId<\/span><span class=\"p\">:<\/span> <span class=\"nx\">f<\/span><span class=\"p\">.<\/span><span class=\"nx\">postId<\/span><span class=\"p\">,<\/span>\r\n            <span class=\"p\">})),<\/span>\r\n          <span class=\"p\">}))<\/span>\r\n          <span class=\"p\">.<\/span><span class=\"nf\">build<\/span><span class=\"p\">({<\/span> <span class=\"na\">type<\/span><span class=\"p\">:<\/span> <span class=\"kc\">true<\/span> <span class=\"p\">}),<\/span>\r\n      <span class=\"p\">)<\/span>\r\n      <span class=\"p\">.<\/span><span class=\"nf\">resolve<\/span><span class=\"p\">(<\/span><span class=\"k\">async <\/span><span class=\"p\">({<\/span> <span class=\"nx\">context<\/span><span class=\"p\">,<\/span> <span class=\"nx\">args<\/span> <span class=\"p\">})<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"k\">await<\/span> <span class=\"nx\">prisma<\/span><span class=\"p\">.<\/span><span class=\"nx\">post<\/span><span class=\"p\">.<\/span><span class=\"nf\">findFirstOrThrow<\/span><span class=\"p\">({<\/span>\r\n          <span class=\"na\">where<\/span><span class=\"p\">:<\/span> <span class=\"p\">{<\/span>\r\n            <span class=\"na\">id<\/span><span class=\"p\">:<\/span> <span class=\"nx\">args<\/span><span class=\"p\">.<\/span><span class=\"nx\">input<\/span><span class=\"p\">.<\/span><span class=\"nx\">postId<\/span><span class=\"p\">,<\/span>\r\n            <span class=\"na\">authorId<\/span><span class=\"p\">:<\/span> <span class=\"nx\">context<\/span><span class=\"p\">.<\/span><span class=\"nx\">userId<\/span><span class=\"p\">,<\/span>\r\n          <span class=\"p\">},<\/span>\r\n        <span class=\"p\">})<\/span>\r\n        <span class=\"kd\">const<\/span> <span class=\"nx\">created<\/span> <span class=\"o\">=<\/span> <span class=\"k\">await<\/span> <span class=\"nx\">prisma<\/span><span class=\"p\">.<\/span><span class=\"nx\">attachment<\/span><span class=\"p\">.<\/span><span class=\"nf\">create<\/span><span class=\"p\">({<\/span>\r\n          <span class=\"na\">data<\/span><span class=\"p\">:<\/span> <span class=\"p\">{<\/span>\r\n            <span class=\"p\">...<\/span><span class=\"nx\">args<\/span><span class=\"p\">.<\/span><span class=\"nx\">input<\/span><span class=\"p\">,<\/span>\r\n            <span class=\"na\">size<\/span><span class=\"p\">:<\/span> <span class=\"nx\">args<\/span><span class=\"p\">.<\/span><span class=\"nx\">input<\/span><span class=\"p\">.<\/span><span class=\"nx\">buffer<\/span><span class=\"p\">.<\/span><span class=\"nx\">byteLength<\/span><span class=\"p\">,<\/span>\r\n          <span class=\"p\">},<\/span>\r\n        <span class=\"p\">})<\/span>\r\n        <span class=\"k\">return<\/span> <span class=\"nx\">created<\/span>\r\n      <span class=\"p\">}),<\/span>\r\n<span class=\"p\">})<\/span>\r\n<\/code><\/pre>\n<h3>\u5efa\u7acb\u6a21\u5f0f<\/h3>\n<p>\u7531\u4e8eGraphQL\u6a21\u5f0f\u548c\u89e3\u6790\u5668\u7684\u5b9a\u4e49\u5df2\u7ecf\u5b8c\u6210\uff0c\u6211\u4eec\u73b0\u5728\u53ef\u4ee5\u8fdb\u884c\u6784\u5efa\u5e76\u521b\u5efaGraphQL API\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"kd\">const<\/span> <span class=\"nx\">server<\/span> <span class=\"o\">=<\/span> <span class=\"nf\">createServer<\/span><span class=\"p\">({<\/span>\r\n  <span class=\"na\">schema<\/span><span class=\"p\">:<\/span> <span class=\"nx\">pg<\/span><span class=\"p\">.<\/span><span class=\"nf\">build<\/span><span class=\"p\">([<\/span>\r\n    <span class=\"nx\">usersQuery<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"nx\">postsQuery<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"nx\">createPostMutation<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"nx\">createAttachmentMutation<\/span><span class=\"p\">,<\/span>\r\n  <span class=\"p\">]),<\/span>\r\n  <span class=\"na\">maskedErrors<\/span><span class=\"p\">:<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"na\">formatError<\/span><span class=\"p\">:<\/span> <span class=\"p\">(<\/span><span class=\"nx\">error<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\r\n      <span class=\"kd\">const<\/span> <span class=\"nx\">e<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">error<\/span> <span class=\"k\">as<\/span> <span class=\"nx\">GraphQLError<\/span>\r\n      <span class=\"nx\">e<\/span><span class=\"p\">.<\/span><span class=\"nx\">extensions<\/span><span class=\"p\">.<\/span><span class=\"nx\">stack<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">e<\/span><span class=\"p\">.<\/span><span class=\"nx\">originalError<\/span><span class=\"p\">?.<\/span><span class=\"nx\">stack<\/span>\r\n      <span class=\"k\">return<\/span> <span class=\"nx\">e<\/span>\r\n    <span class=\"p\">},<\/span>\r\n  <span class=\"p\">},<\/span>\r\n  <span class=\"na\">context<\/span><span class=\"p\">:<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"na\">userId<\/span><span class=\"p\">:<\/span> <span class=\"mi\">1<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"na\">isAdmin<\/span><span class=\"p\">:<\/span> <span class=\"kc\">true<\/span><span class=\"p\">,<\/span>\r\n  <span class=\"p\">},<\/span>\r\n<span class=\"p\">})<\/span>\r\n<\/code><\/pre>\n<p>\u53ea\u9700\u5c06\u5b9a\u4e49\u7684\u67e5\u8be2\u548c\u53d8\u5f02\u4f5c\u4e3a\u53c2\u6570\u4f20\u9012\u7ed9build()\u51fd\u6570\uff0c\u5373\u53ef\u6267\u884c\u6784\u5efa\u64cd\u4f5c\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nx\">pg<\/span><span class=\"p\">.<\/span><span class=\"nf\">build<\/span><span class=\"p\">([<\/span>\r\n  <span class=\"nx\">usersQuery<\/span><span class=\"p\">,<\/span>\r\n  <span class=\"nx\">postsQuery<\/span><span class=\"p\">,<\/span>\r\n  <span class=\"nx\">createPostMutation<\/span><span class=\"p\">,<\/span>\r\n  <span class=\"nx\">createAttachmentMutation<\/span><span class=\"p\">,<\/span>\r\n<span class=\"p\">]),<\/span>\r\n<\/code><\/pre>\n<h3>\u5c1d\u8bd5\u901a\u8fc7API\u63d0\u4ea4\u67e5\u8be2<\/h3>\n<p>\u8ba9\u6211\u4eec\u5411\u901a\u8fc7\u793a\u4f8b\u5b9e\u73b0\u7684GraphQL API\u53d1\u9001\u67e5\u8be2\u3002\u672c\u6b21\u6211\u4eec\u5c06\u4ece\u4ee5\u4e0b\u7528\u6237\u5df2\u7ecf\u5728\u6570\u636e\u5e93\u4e2d\u6ce8\u518c\u7684\u72b6\u6001\u5f00\u59cb\u3002<\/p>\n<pre class=\"post-pre\"><code>{\r\n  id: 1,\r\n  email: \"xxx@example.com\",\r\n  firstName: \"Taro\",\r\n  lastName: \"Tanaka\",\r\n}\r\n<\/code><\/pre>\n<p>\u6211\u4eec\u9996\u5148\u8fd0\u884c&#8221;users&#8221;\uff0c\u7136\u540e\u5c1d\u8bd5\u83b7\u53d6\u5168\u90e8\u7528\u6237\u3002<\/p>\n<pre class=\"post-pre\"><code># query\r\nquery {\r\n  users {\r\n    edges {\r\n      node {\r\n        id\r\n        firstName\r\n        lastName\r\n        fullName\r\n        posts {\r\n          id\r\n        }\r\n      }\r\n    }\r\n  }\r\n}\r\n\r\n# \u30ec\u30b9\u30dd\u30f3\u30b9\r\n{\r\n  \"data\": {\r\n    \"users\": {\r\n      \"totalCount\": 1,\r\n      \"edges\": [\r\n        {\r\n          \"node\": {\r\n            \"id\": \"1\",\r\n            \"firstName\": \"Taro\",\r\n            \"lastName\": \"Tanaka\",\r\n            \"fullName\": \"TaroTanaka\",\r\n            \"posts\": []\r\n          }\r\n        }\r\n      ]\r\n    }\r\n  }\r\n}\r\n<\/code><\/pre>\n<p>\u7531\u4e8e\u91c7\u7528\u4e86relay\u7684\u683c\u5f0f\uff0c\u7ed3\u679c\u5982\u4e0a\u6240\u793a\u3002\u6b64\u5916\uff0c\u53ef\u4ee5\u770b\u5230\u9664\u4e86firstName \/ lastName\u4e4b\u5916\uff0c\u8fd8\u53ef\u4ee5\u83b7\u53d6\u81ea\u5b9a\u4e49\u5b9a\u4e49\u7684fullName\u3002<\/p>\n<p>\u63a5\u4e0b\u6765\uff0c\u8ba9\u6211\u4eec\u5c1d\u8bd5\u4f7f\u7528createPost\u6765\u521b\u5efa\u65b0\u7684\u6587\u7ae0\u3002<\/p>\n<pre class=\"post-pre\"><code># mutation\r\nmutation {\r\n  createPost (input: {title: \"title1\", content: \"content1\"}) {\r\n    id\r\n    title\r\n    content\r\n    isPublic\r\n    authorId\r\n  }\r\n}\r\n\r\n# \u30ec\u30b9\u30dd\u30f3\u30b9\r\n{\r\n  \"data\": {\r\n    \"createPost\": {\r\n      \"id\": \"1\",\r\n      \"title\": \"title1\",\r\n      \"content\": \"content1\",\r\n      \"isPublic\": true,\r\n      \"authorId\": 1\r\n    }\r\n  }\r\n}\r\n<\/code><\/pre>\n<p>\u53ef\u4ee5\u770b\u51faPost\u5df2\u7ecf\u88ab\u65b0\u5efa\u3002<br \/>\n\u53e6\u5916\uff0cisPublic\u8bbe\u5b9a\u5982\u540cargs()\u4e2d\u5b9a\u4e49\u7684\u4e00\u6837\uff0c\u9ed8\u8ba4\u503c\u4e3atrue\uff0c\u5e76\u4e14authorId\u88ab\u8bbe\u7f6e\u4e3a\u6267\u884c\u67e5\u8be2\u7684\u7528\u6237\uff08\u5728\u6b64\u60c5\u51b5\u4e0b\uff0c\u662f\u9884\u5148\u6ce8\u518c\u7684\u7528\u6237\uff09\u7684ID\u3002<\/p>\n<p>\u63a5\u4e0b\u6765\uff0c\u8ba9\u6211\u4eec\u6267\u884c\u4e00\u4e2a\u540d\u4e3a&#8221;post&#8221;\u7684\u67e5\u8be2\uff0c\u5c1d\u8bd5\u83b7\u53d6\u6211\u4eec\u4e4b\u524d\u6ce8\u518c\u7684\u5e16\u5b50\u3002<\/p>\n<pre class=\"post-pre\"><code># query\r\nquery {\r\n  post ( where: { authorId: { equals: 1 } }){\r\n    id\r\n    title\r\n    content\r\n  }\r\n}\r\n\r\n# \u30ec\u30b9\u30dd\u30f3\u30b9\r\n{\r\n  \"data\": {\r\n    \"post\": {\r\n      \"id\": \"1\",\r\n      \"title\": \"title1\",\r\n      \"content\": \"content1\",\r\n      \"author\": {\r\n        \"id\": \"1\"\r\n      }\r\n    }\r\n  }\r\n}\r\n<\/code><\/pre>\n<p>\u901a\u8fc7prismaFindArgs\u53ef\u4ee5\u6307\u5b9awhere\u8bed\u53e5\uff0c\u5e76\u4e14\u53ef\u4ee5\u83b7\u53d6\u5230\u4f5c\u4e3a\u5173\u8054\u5b57\u6bb5\u7684\u4f5c\u8005\u3002<\/p>\n<p>\u5728\u8fd9\u91cc\u518d\u589e\u52a0\u4e00\u7bc7\u5e16\u5b50\u5e76\u63d0\u4ea4\u6ce8\u518c\u540e\uff0c\u518d\u6b21\u6267\u884c\u7528\u6237\u547d\u4ee4\u8bd5\u8bd5\u770b\u3002<\/p>\n<pre class=\"post-pre\"><code># query\r\nquery {\r\n  users {\r\n    edges {\r\n      node {\r\n        id\r\n        fullName\r\n        posts {\r\n          id\r\n          title\r\n        }\r\n        latestPost {\r\n          id\r\n          title\r\n        }\r\n      }\r\n    }\r\n  }\r\n}\r\n\r\n# \u30ec\u30b9\u30dd\u30f3\u30b9\r\n{\r\n  \"data\": {\r\n    \"users\": {\r\n      \"edges\": [\r\n        {\r\n          \"node\": {\r\n            \"id\": \"1\",\r\n            \"fullName\": \"TaroTanaka\",\r\n            \"posts\": [\r\n              {\r\n                \"id\": \"1\",\r\n                \"title\": \"title1\"\r\n              },\r\n              {\r\n                \"id\": \"2\",\r\n                \"title\": \"title2\"\r\n              }\r\n            ],\r\n            \"latestPost\": {\r\n              \"id\": \"2\",\r\n              \"title\": \"title2\"\r\n            }\r\n          }\r\n        }\r\n      ]\r\n    }\r\n  }\r\n}\r\n<\/code><\/pre>\n<p>\u6211\u5011\u53ef\u4ee5\u770b\u5230\uff0c\u6211\u5011\u5df2\u7d93\u6210\u529f\u7372\u53d6\u5230\u4e86\u5728\u95dc\u806f\u5b57\u6bb5\u4e2d\u5b9a\u7fa9\u7684\u201cposts\u201d\u548c\u201clatestPost\u201d\u3002<br \/>\n\u6b64\u5916\uff0c\u6839\u64da\u6211\u5011\u5728\u81ea\u5b9a\u7fa9\u7684latestPost\u4e2d\u5b9a\u7fa9\u7684resolve()\u51fd\u6578\u7684\u5167\u5bb9\uff0c\u6211\u5011\u4e5f\u53ef\u4ee5\u78ba\u5b9a\u5b83\u6210\u529f\u7372\u53d6\u4e86\u6700\u65b0\u7684\u5e16\u5b50\u3002<\/p>\n<h2>\u7528\u6c49\u8bed\u5c06\u5176\u7b80\u6d01\u5f52\u7eb3<\/h2>\n<p>\u672c\u6b21\u4ecb\u7ecd\u4e86\u4e00\u6b3e\u80fd\u591f\u8f7b\u677e\u521b\u5efaGraphQL API\u7684\u5e93\u300aPlanetGraphQL\u300b\uff0c\u5e76\u8fdb\u884c\u4e86\u7b80\u5355API\u7684\u5b9e\u73b0\u3002<br \/>\n\u4e0e\u5176\u4ed6\u7c7b\u4f3c\u7684\u5e93\u76f8\u6bd4\uff0c\u300aPlanetGraphQL\u300b\u5177\u6709\u4ee5\u4e0b\u4f18\u70b9\uff1a<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Prisma\u3068\u306e\u89aa\u548c\u6027\u304c\u9ad8\u304f\u3001\u304b\u3064\u30ab\u30b9\u30bf\u30de\u30a4\u30ba\u306e\u81ea\u7531\u5ea6\u304c\u9ad8\u3044<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u30a4\u30f3\u30bf\u30d5\u30a7\u30fc\u30b9\u3092\u5b9a\u7fa9\u3059\u308b\u3053\u3068\u306a\u304f\u3001\u578b\u5b89\u5168\u306b\u5b9f\u88c5\u3067\u304d\u308b<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\u30b9\u30ad\u30fc\u30de\u3084\u30ea\u30be\u30eb\u30d0\u304c\u6bd4\u8f03\u7684\u7c21\u5358\u306b\u8a2d\u5b9a\u3067\u304d\u308b<\/ul>\n<p>\u8bf7\u5728\u5c06\u6765\u5b9e\u65bdGraphQL API\u65f6\u4e00\u5b9a\u8981\u5c1d\u8bd5\u4f7f\u7528\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u9996\u5148 \u672c\u6b21\u5c06\u4ecb\u7ecd\u5728\u5e94\u7528\u5f00\u53d1\u4e2d\u4f7f\u7528GraphQL API\u5b9e\u73b0\u6240\u4f7f\u7528\u7684\u5e93\u3002 \u6240\u4ecb\u7ecd\u7684\u5e93\u662f\u300ePlanetGraphQ [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-48199","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u4f7f\u7528GraphQL\u548cPrisma\uff1a\u4f7f\u7528\u300ePlanetGraphQL\u300f\u5feb\u901f\u521b\u5efaGraphQL API\u8bd5\u8bd5\u770b - Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/zh\/blog\/\u4f7f\u7528graphql\u548cprisma\uff1a\u4f7f\u7528\u300eplanetgraphql\u300f\u5feb\u901f\u521b\u5efagraphql-api\u8bd5\u8bd5\u770b\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u4f7f\u7528GraphQL\u548cPrisma\uff1a\u4f7f\u7528\u300ePlanetGraphQL\u300f\u5feb\u901f\u521b\u5efaGraphQL API\u8bd5\u8bd5\u770b\" \/>\n<meta property=\"og:description\" content=\"\u9996\u5148 \u672c\u6b21\u5c06\u4ecb\u7ecd\u5728\u5e94\u7528\u5f00\u53d1\u4e2d\u4f7f\u7528GraphQL API\u5b9e\u73b0\u6240\u4f7f\u7528\u7684\u5e93\u3002 \u6240\u4ecb\u7ecd\u7684\u5e93\u662f\u300ePlanetGraphQ [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/\u4f7f\u7528graphql\u548cprisma\uff1a\u4f7f\u7528\u300eplanetgraphql\u300f\u5feb\u901f\u521b\u5efagraphql-api\u8bd5\u8bd5\u770b\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - Silicon Cloud\" \/>\n<meta property=\"article:published_time\" content=\"2023-05-20T07:21:41+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-05-04T10:00:37+00:00\" \/>\n<meta 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