Jon*_*Jon 9 node.js sequelize.js electron
我正在尝试在桌面应用程序中使用sequelize和sqlite与电子,但在运行应用程序时运行npm start(运行node_modules/.bin/electron .)会出现以下错误:
未捕获的错误:不支持方言sqlite.(错误:请手动安装sqlite3包)
我已经安装了sequelize和sqlite npm install --save sequelize sqlite.当我直接运行模型文件时node models.js,一切正常:
$ node models.js
Executing (default): CREATE TABLE IF NOT EXISTS `Users` (`id` INTEGER PRIMARY KEY AUTOINCREMENT, `username` VARCHAR(255), `birthday` DATETIME, `createdAt` DATETIME NOT NULL, `updatedAt` DATETIME NOT NULL);
Executing (default): PRAGMA INDEX_LIST(`Users`)
Executing (default): INSERT INTO `Users` (`id`,`username`,`birthday`,`updatedAt`,`createdAt`) VALUES (NULL,'janedoe','1980-07-19 22:00:00.000 +00:00','2015-09-06 11:18:52.412 +00:00','2015-09-06 11:18:52.412 +00:00');
{ id: 1,
username: 'janedoe',
birthday: Sun Jul 20 1980 00:00:00 GMT+0200 (CEST),
updatedAt: Sun Sep 06 2015 13:18:52 GMT+0200 (CEST),
createdAt: Sun Sep 06 2015 13:18:52 GMT+0200 (CEST) }
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因此问题是使用电子续集.所有文件如下所示.
的package.json
{
"name": "example",
"version": "0.0.0",
"description": "",
"main": "app.js",
"scripts": {
"start": "node_modules/.bin/electron .",
"test": "echo \"Error: no test specified\" && exit 1"
},
"author": "",
"devDependencies": {
"electron-prebuilt": "^0.31.1"
},
"dependencies": {
"jquery": "^2.1.4",
"sequelize": "^3.7.1",
"sqlite3": "^3.0.10"
}
}
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app.js
var app = require('app');
var BrowserWindow = require('browser-window');
require('crash-reporter').start();
var mainWindow = null;
app.on('window-all-closed', function() {
if (process.platform !== 'darwin') {
app.quit();
}
});
app.on('ready', function() {
mainWindow = new BrowserWindow({width: 800, height: 600});
mainWindow.loadUrl('file://' + __dirname + '/index.html');
mainWindow.on('closed', function() {
mainWindow = null;
});
});
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的index.html
<!DOCTYPE html>
<html lang="en">
<head>
<!-- Required meta tags always come first -->
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<meta http-equiv="x-ua-compatible" content="ie=edge">
</head>
<body>
<p>Example</p>
<script src="models.js"></script>
</body>
</html>
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models.js
var Sequelize = require('sequelize');
var sequelize = new Sequelize('bdgt', 'username', 'password', {
dialect: 'sqlite',
storage: 'example.db',
});
var User = sequelize.define('User', {
username: Sequelize.STRING,
birthday: Sequelize.DATE
});
sequelize.sync().then(function() {
return User.create({
username: 'janedoe',
birthday: new Date(1980, 6, 20)
});
}).then(function(jane) {
console.log(jane.get({
plain: true
}));
});
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使用安装依赖项npm install并使用重现问题npm start.跑步node models.js将显示其自身的续集作品.
最后,根据@Josh提供的文章以及其他博客文章和问题讨论,我找到了解决此问题的有效方案.下面我写了我为解决这个问题而采取的所有步骤.在最终解决方案发布在这个答案的底部
我按照电子回购中提供的电子教程.
简单的方法
我安装了electron-rebuild节点包并运行./node_modules/.bin/electron-rebuild,这给了我以下错误:
node-pre-gyp ERR! install error
node-pre-gyp ERR! stack Error: Unsupported target version: 0.31.2
node-pre-gyp ERR! command "node" "/my/project/dir/node_modules/sqlite3/node_modules/.bin/node-pre-gyp" "install" "--fallback-to-build"
node-pre-gyp ERR! not ok
npm ERR! Failed at the sqlite3@3.0.10 install script 'node-pre-gyp install --fallback-to-build'.
npm ERR! This is most likely a problem with the sqlite3 package,
npm ERR! not with npm itself.
npm ERR! Tell the author that this fails on your system:
npm ERR! node-pre-gyp install --fallback-to-build
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节点-Gyp方式
我已经全局安装了node-gyp模块并输入了./node_modules/sqlite3dir.然后我尝试运行以下命令:
node-gyp rebuild --target=0.31.2 --arch=x64 --dist-url=https://atom.io/download/atom-shell
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并得到以下错误:
gyp: Undefined variable module_name in binding.gyp while trying to load binding.gyp
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npm Way
这导致了与The Easy Way相同的结果.
sqlite3分叉
最后我尝试下载了一些sqlite3 forks.不幸的是结果是一样的.
最后的尝试 - 解决方案
@Josh提供的博客文章被我禁止,但我找到了它的谷歌缓存版本.我也跟着电子问题的讨论.
下面介绍的步骤应该为您提供一个有效的sqlite3包.
"electron-prebuilt": "0.29.1"electron-prebuilt./node_modules/sqlite3npm run prepublish配置node-gyp module_name和module_path
node-gyp configure --module_name=node_sqlite3 --module_path=../lib/binding/node-v44-linux-x64
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node-gyp rebuild --target=0.29.1 --arch=x64 --target_platform=linux --dist-url=https://atom.io/download/atom-shell --module_name=node_sqlite3 --module_path=../lib/binding/node-v44-linux-x64
Run Code Online (Sandbox Code Playgroud)我尝试使用电子预编译包的0.31.2版进行编译,但由于某种原因它失败了.
如果您使用的是Mac替换linux用darwin.
如果你的操作系统架构是32位替换x64用ia32
我知道你已经sqlite3安装并单独工作,但是当您尝试使用出现的问题sqlite3与electron一起.这是因为ABI版本不匹配.
当你放一个
console.log(err); 在
<project>/node_modules/sequelize/lib/dialects/sqlite/connection-manager.js 第21行,
就在throw new Error('Please install sqlite3 package manually');您将看到如下错误之前:
{ [Error: Cannot find module '<full_path_to_project>/node_modules/sqlite3/lib/binding/node-v44-linux-x64/node_sqlite3.node'] code: 'MODULE_NOT_FOUND' }
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但是,当您检查/node_modules/sqlite3/lib/binding/文件夹时,将没有node-v44-linux-x64文件夹,但文件夹之类的东西node-v11-linux-x64.(简单地重命名文件夹将不起作用.)
这种不匹配的发生是因为电子在io.js v3.1.0内部使用,因为它在这里说明它的ABI版本和你的nodejs版本不匹配.
请注意,这node-vXX是通过您的节点的ABI版本决定的.查看此网址以获取更多信息:https://github.com/mapbox/node-pre-gyp/issues/167
解
这里简单的方法https://github.com/atom/electron/blob/master/docs/tutorial/using-native-node-modules.md#the-easy-way不能正常工作sqlite但是你可以按照以下步骤使其工作:
electron-rebuild通过以下命令安装后
npm install --save-dev electron-rebuild
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转到<project path>/node_modules/sqlite3/node_modules/node-pre-gyp/lib/util/abi_crosswalk.js并找到您的节点版本,然后将node_abi值更改为44.如下:
"0.12.7": {
"node_abi": 44,
"v8": "3.28"
},
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然后给./node_modules/.bin/electron-rebuild命令稍等一下.然后它工作.
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