{"id":6245,"date":"2024-07-08T17:22:02","date_gmt":"2024-07-08T09:22:02","guid":{"rendered":"https:\/\/t.n-years.com\/?p=6245"},"modified":"2024-07-08T17:23:32","modified_gmt":"2024-07-08T09:23:32","slug":"grdb-%e5%92%8c-lkdbhelper-%e4%bc%98%e5%8a%a3%e5%af%b9%e6%af%94%e5%8f%8a-grdb-%e5%9f%ba%e6%9c%ac%e4%bd%bf%e7%94%a8","status":"publish","type":"post","link":"https:\/\/t.n-years.com\/?p=6245","title":{"rendered":"GRDB \u548c LKDBHelper \u4f18\u52a3\u5bf9\u6bd4\u53ca GRDB \u57fa\u672c\u4f7f\u7528"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">\u4ee5\u4e0b\u662f GRDB \u548c LKDBHelper \u7684\u4f18\u52a3\u5bf9\u6bd4\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\u7279\u6027<\/th><th>GRDB<\/th><th>LKDBHelper<\/th><\/tr><\/thead><tbody><tr><td><strong>\u6613\u7528\u6027<\/strong><\/td><td>\u5b66\u4e60\u66f2\u7ebf\u8f83\u9ad8\uff0c\u9002\u5408\u6709\u4e00\u5b9a\u6570\u636e\u5e93\u7ecf\u9a8c\u7684\u5f00\u53d1\u8005<\/td><td>\u63a5\u53e3\u7b80\u5355\u660e\u4e86\uff0c\u6613\u4e8e\u4e0a\u624b\uff0c\u9002\u5408\u521d\u5b66\u8005<\/td><\/tr><tr><td><strong>\u529f\u80fd<\/strong><\/td><td>\u529f\u80fd\u5f3a\u5927\uff0c\u652f\u6301 SQLite \u7684\u6240\u6709\u7279\u6027\uff0c\u5305\u62ec\u590d\u6742\u67e5\u8be2\u3001\u4e8b\u52a1\u3001\u5e76\u53d1\u8bbf\u95ee\u7b49<\/td><td>\u529f\u80fd\u76f8\u5bf9\u8f83\u5c11\uff0c\u9002\u5408\u57fa\u672c\u7684\u6570\u636e\u5e93\u64cd\u4f5c<\/td><\/tr><tr><td><strong>\u6027\u80fd<\/strong><\/td><td>\u6027\u80fd\u4f18\u5f02\uff0c\u9002\u7528\u4e8e\u9ad8\u6027\u80fd\u5e94\u7528<\/td><td>\u6027\u80fd\u5c1a\u53ef\uff0c\u4f46\u5728\u590d\u6742\u573a\u666f\u4e0b\u53ef\u80fd\u4e0d\u5982 GRDB<\/td><\/tr><tr><td><strong>\u7075\u6d3b\u6027<\/strong><\/td><td>\u7075\u6d3b\u6027\u9ad8\uff0c\u53ef\u4ee5\u76f4\u63a5\u6267\u884c SQL \u8bed\u53e5\u6216\u4f7f\u7528 Swift \u63a5\u53e3\u8fdb\u884c\u64cd\u4f5c\uff0c\u652f\u6301\u81ea\u5b9a\u4e49\u6570\u636e\u7c7b\u578b\u548c\u590d\u6742\u6570\u636e\u6a21\u578b<\/td><td>\u63d0\u4f9b\u57fa\u672c\u7684\u81ea\u52a8\u5316\u529f\u80fd\uff0c\u5982\u81ea\u52a8\u521b\u5efa\u8868\u3001\u81ea\u52a8\u5347\u7ea7\u8868\uff0c\u4f46\u7075\u6d3b\u6027\u8f83\u4f4e<\/td><\/tr><tr><td><strong>\u6587\u6863\u548c\u793e\u533a\u652f\u6301<\/strong><\/td><td>\u6587\u6863\u9f50\u5168\uff0c\u793e\u533a\u6d3b\u8dc3\uff0c\u6709\u8be6\u7ec6\u7684\u4f7f\u7528\u793a\u4f8b\u548c\u9ad8\u7ea7\u7528\u6cd5\u8bf4\u660e<\/td><td>\u6587\u6863\u76f8\u5bf9\u8f83\u5c11\uff0c\u793e\u533a\u652f\u6301\u4e0d\u5982 GRDB \u6d3b\u8dc3<\/td><\/tr><tr><td><strong>\u6570\u636e\u5e93\u8fc1\u79fb<\/strong><\/td><td>\u652f\u6301\u6570\u636e\u5e93\u8fc1\u79fb\uff0c\u65b9\u4fbf\u6570\u636e\u5e93\u6a21\u5f0f\u7684\u6f14\u53d8<\/td><td>\u57fa\u672c\u652f\u6301\u6570\u636e\u5e93\u8fc1\u79fb\u529f\u80fd\uff0c\u4f46\u4e0d\u5982 GRDB \u7075\u6d3b<\/td><\/tr><tr><td><strong>\u5e76\u53d1\u5904\u7406<\/strong><\/td><td>\u63d0\u4f9b\u5bf9\u5e76\u53d1\u8bbf\u95ee\u7684\u826f\u597d\u652f\u6301\uff0c\u9002\u7528\u4e8e\u591a\u7ebf\u7a0b\u73af\u5883<\/td><td>\u5e76\u53d1\u5904\u7406\u652f\u6301\u6709\u9650\uff0c\u9002\u5408\u7b80\u5355\u7684\u591a\u7ebf\u7a0b\u573a\u666f<\/td><\/tr><tr><td><strong>\u6a21\u578b\u6620\u5c04<\/strong><\/td><td>\u4f7f\u7528 Record \u7c7b\u578b\uff0c\u4f7f\u6570\u636e\u6a21\u578b\u548c\u6570\u636e\u5e93\u8868\u4e4b\u95f4\u7684\u6620\u5c04\u66f4\u52a0\u81ea\u7136<\/td><td>\u652f\u6301\u901a\u8fc7\u6a21\u578b\u7c7b\u81ea\u52a8\u6620\u5c04\u5230\u6570\u636e\u5e93\u8868\uff0c\u51cf\u5c11\u4e86\u4ee3\u7801\u91cf\uff0c\u4f46\u7075\u6d3b\u6027\u4e0d\u5982 GRDB<\/td><\/tr><tr><td><strong>\u4f9d\u8d56\u6027<\/strong><\/td><td>\u4e3b\u8981\u4f9d\u8d56\u4e8e SQLite\uff0c\u9700\u8981\u5bf9 SQLite \u6709\u4e00\u5b9a\u4e86\u89e3<\/td><td>\u4f9d\u8d56\u5c11\uff0c\u9002\u5408\u5feb\u901f\u5f00\u53d1\u548c\u5c0f\u578b\u9879\u76ee<\/td><\/tr><tr><td><strong>\u9002\u7528\u573a\u666f<\/strong><\/td><td>\u9002\u5408\u5927\u578b\u548c\u590d\u6742\u9879\u76ee\uff0c\u8981\u6c42\u9ad8\u6027\u80fd\u548c\u9ad8\u5ea6\u7075\u6d3b\u6027\u7684\u5e94\u7528<\/td><td>\u9002\u5408\u5c0f\u578b\u9879\u76ee\u548c\u5feb\u901f\u5f00\u53d1\uff0c\u5c24\u5176\u662f\u9700\u8981\u5feb\u901f\u4e0a\u624b\u548c\u96c6\u6210\u7684\u573a\u666f<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u5e0c\u671b\u8fd9\u4e2a\u8868\u683c\u53ef\u4ee5\u66f4\u6e05\u6670\u5730\u5c55\u793a GRDB \u548c LKDBHelper \u5404\u81ea\u7684\u4f18\u7f3a\u70b9\uff0c\u5e2e\u52a9\u4f60\u66f4\u597d\u5730\u9009\u62e9\u9002\u5408\u81ea\u5df1\u9879\u76ee\u7684\u6570\u636e\u5e93\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>GRDB \u57fa\u672c\u4f7f\u7528<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">GRDB \u662f\u4e00\u4e2a\u5f3a\u5927\u800c\u7075\u6d3b\u7684 SQLite \u6570\u636e\u5e93\u5e93\uff0c\u9002\u7528\u4e8e Swift \u548c iOS\/macOS \u5e94\u7528\u5f00\u53d1\u3002\u5b83\u63d0\u4f9b\u4e86\u4e00\u4e2a\u7b80\u5355\u6613\u7528\u7684\u63a5\u53e3\u6765\u5904\u7406\u6570\u636e\u5e93\u64cd\u4f5c\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528 GRDB \u7684\u57fa\u672c\u6b65\u9aa4\uff1a<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u5b89\u88c5<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u53ef\u4ee5\u901a\u8fc7 CocoaPods \u6216 Swift Package Manager (SPM) \u5b89\u88c5 GRDB\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">CocoaPods<\/h4>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u5728 <code>Podfile<\/code> \u4e2d\u6dfb\u52a0\u4ee5\u4e0b\u884c\uff1a<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-code\"><code>   pod 'GRDB.swift'<\/code><\/pre>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>\u8fd0\u884c <code>pod install<\/code>\u3002<\/li>\n<\/ol>\n\n\n\n<h4 class=\"wp-block-heading\">Swift Package Manager<\/h4>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u5728 <code>Package.swift<\/code> \u6587\u4ef6\u4e2d\u6dfb\u52a0\u4f9d\u8d56\uff1a<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-code\"><code>   dependencies: &#91;\n       .package(url: \"https:\/\/github.com\/groue\/GRDB.swift.git\", from: \"6.0.0\")\n   ]<\/code><\/pre>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>\u66f4\u65b0\u9879\u76ee\u4f9d\u8d56\uff1a<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-code\"><code>   swift package update<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">\u914d\u7f6e\u6570\u636e\u5e93<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u5bfc\u5165 GRDB\uff1a<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-code\"><code>   import GRDB<\/code><\/pre>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>\u521b\u5efa\u5e76\u914d\u7f6e\u6570\u636e\u5e93\u8def\u5f84\uff1a<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-code\"><code>   let databasePath = try FileManager.default\n       .url(for: .documentDirectory, in: .userDomainMask, appropriateFor: nil, create: true)\n       .appendingPathComponent(\"db.sqlite\")<\/code><\/pre>\n\n\n\n<ol class=\"wp-block-list\" start=\"3\">\n<li>\u521b\u5efa\u6570\u636e\u5e93\u961f\u5217\uff1a<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-code\"><code>   let dbQueue = try DatabaseQueue(path: databasePath.path)<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">\u521b\u5efa\u8868<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f7f\u7528 GRDB\uff0c\u53ef\u4ee5\u901a\u8fc7 SQL \u6216 Swift \u521b\u5efa\u6570\u636e\u5e93\u8868\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528 Swift \u521b\u5efa\u8868\u7684\u793a\u4f8b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>try dbQueue.write { db in\n    try db.create(table: \"players\") { t in\n        t.autoIncrementedPrimaryKey(\"id\")\n        t.column(\"name\", .text).notNull()\n        t.column(\"score\", .integer).notNull()\n    }\n}<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">\u63d2\u5165\u6570\u636e<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u63d2\u5165\u6570\u636e\u53ef\u4ee5\u4f7f\u7528 SQL \u6216 Swift\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>try dbQueue.write { db in\n    try db.execute(\n        sql: \"INSERT INTO players (name, score) VALUES (?, ?)\",\n        arguments: &#91;\"Alice\", 1000])\n}<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u6216\u8005\uff0c\u4f7f\u7528 Record \u7c7b\u578b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>struct Player: Codable, FetchableRecord, MutablePersistableRecord {\n    var id: Int64?\n    var name: String\n    var score: Int\n}\n\ntry dbQueue.write { db in\n    var player = Player(name: \"Alice\", score: 1000)\n    try player.insert(db)\n}<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">\u67e5\u8be2\u6570\u636e<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u67e5\u8be2\u6570\u636e\u540c\u6837\u53ef\u4ee5\u4f7f\u7528 SQL \u6216 Swift\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>let players = try dbQueue.read { db in\n    try Row.fetchAll(db, sql: \"SELECT * FROM players\")\n}<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u6216\u8005\uff0c\u4f7f\u7528 Record \u7c7b\u578b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>let players: &#91;Player] = try dbQueue.read { db in\n    try Player.fetchAll(db)\n}<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">\u66f4\u65b0\u6570\u636e<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u53ef\u4ee5\u4f7f\u7528 SQL \u6216 Record \u7c7b\u578b\u66f4\u65b0\u6570\u636e\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>try dbQueue.write { db in\n    try db.execute(\n        sql: \"UPDATE players SET score = ? WHERE name = ?\",\n        arguments: &#91;1500, \"Alice\"])\n}<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u6216\u8005\uff0c\u4f7f\u7528 Record \u7c7b\u578b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>try dbQueue.write { db in\n    if var player = try Player.fetchOne(db, key: 1) {\n        player.score = 1500\n        try player.update(db)\n    }\n}<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">\u5220\u9664\u6570\u636e<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u540c\u6837\u5730\uff0c\u53ef\u4ee5\u4f7f\u7528 SQL \u6216 Record \u7c7b\u578b\u5220\u9664\u6570\u636e\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>try dbQueue.write { db in\n    try db.execute(\n        sql: \"DELETE FROM players WHERE name = ?\",\n        arguments: &#91;\"Alice\"])\n}<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u6216\u8005\uff0c\u4f7f\u7528 Record \u7c7b\u578b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>try dbQueue.write { db in\n    if let player = try Player.fetchOne(db, key: 1) {\n        try player.delete(db)\n    }\n}<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">\u66f4\u591a\u529f\u80fd<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">GRDB \u63d0\u4f9b\u4e86\u8bb8\u591a\u9ad8\u7ea7\u529f\u80fd\uff0c\u4f8b\u5982\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6570\u636e\u5e93\u8fc1\u79fb<\/li>\n\n\n\n<li>\u5e76\u53d1\u5904\u7406<\/li>\n\n\n\n<li>\u6570\u636e\u5e93\u89c2\u5bdf<\/li>\n\n\n\n<li>\u81ea\u5b9a\u4e49\u6570\u636e\u7c7b\u578b<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u53ef\u4ee5\u5728 <a href=\"https:\/\/github.com\/groue\/GRDB.swift\">GRDB \u5b98\u65b9\u6587\u6863<\/a> \u4e2d\u627e\u5230\u8be6\u7ec6\u7684\u4f7f\u7528\u8bf4\u660e\u548c\u793a\u4f8b\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5e0c\u671b\u8fd9\u4e9b\u4fe1\u606f\u5bf9\u4f60\u6709\u5e2e\u52a9\uff01\u5982\u679c\u6709\u4efb\u4f55\u5177\u4f53\u95ee\u9898\uff0c\u968f\u65f6\u95ee\u6211\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4ee5\u4e0b\u662f GRDB \u548c LKDBHelper \u7684\u4f18\u52a3\u5bf9\u6bd4\uff1a \u7279\u6027GRDBLKDBHelper\u6613\u7528\u6027\u5b66\u4e60\u66f2\u7ebf\u8f83\u9ad8\uff0c&#8230; <\/p>\n<div class=\"read-more navbutton\"><a href=\"https:\/\/t.n-years.com\/?p=6245\">\u9605\u8bfb\u66f4\u591a<i class=\"fa fa-angle-double-right\"><\/i><\/a><\/div>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[],"class_list":["post-6245","post","type-post","status-publish","format-standard","hentry","category-5"],"_links":{"self":[{"href":"https:\/\/t.n-years.com\/index.php?rest_route=\/wp\/v2\/posts\/6245","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/t.n-years.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/t.n-years.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/t.n-years.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/t.n-years.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=6245"}],"version-history":[{"count":2,"href":"https:\/\/t.n-years.com\/index.php?rest_route=\/wp\/v2\/posts\/6245\/revisions"}],"predecessor-version":[{"id":6247,"href":"https:\/\/t.n-years.com\/index.php?rest_route=\/wp\/v2\/posts\/6245\/revisions\/6247"}],"wp:attachment":[{"href":"https:\/\/t.n-years.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=6245"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/t.n-years.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=6245"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/t.n-years.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=6245"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}