Javascript “TypeError:无法读取未定义的属性'create'”
我正在构建一个简单的站点,用Passport.js处理用户。我可以运行我的服务器,但当用户提交注册信息时,它会弹出TypeError:无法读取未定义的属性“create” 我知道发生了什么,只是不明白为什么。该错误会在api-routes.js中抛出,特别是在api/signup函数尝试通过db.user.create创建用户时。当I console.logdb时,db对象中的第一件事是 未定义:“C:\\Users\\LENOVO\\Desktop\\code\\Breel\\models\\user.js” …所以用户模型正在导出,只是没有定义 非常感谢您能给予我的任何帮助 user.js,从我的模型目录:Javascript “TypeError:无法读取未定义的属性'create'”,javascript,node.js,express,sequelize.js,Javascript,Node.js,Express,Sequelize.js,我正在构建一个简单的站点,用Passport.js处理用户。我可以运行我的服务器,但当用户提交注册信息时,它会弹出TypeError:无法读取未定义的属性“create” 我知道发生了什么,只是不明白为什么。该错误会在api-routes.js中抛出,特别是在api/signup函数尝试通过db.user.create创建用户时。当I console.logdb时,db对象中的第一件事是 未定义:“C:\\Users\\LENOVO\\Desktop\\code\\Breel\\models\\
var bcrypt = require("bcryptjs");
module.exports = function (sequelize, DataTypes) {
var User = sequelize.define("User", {
email: {
type: DataTypes.STRING,
allowNull: false,
unique: true,
validate: {
isEmail: true,
},
},
password: {
type: DataTypes.STRING,
allowNull: false,
},
});
User.prototype.validPassword = function (password) {
return bcrypt.compareSync(password, this.password);
};
User.hook("beforeCreate", function (user) {
user.password = bcrypt.hashSync(
user.password,
bcrypt.genSaltSync(10),
null
);
});
return User;
};
var db = require("../models");
var passport = require("../config/passport");
module.exports = function (app) {
app.post("/api/login", passport.authenticate("local"), function (req, res) {
res.json("/members");
});
app.post("/api/signup", function (req, res) {
console.log(req.body);
console.log(db);
db.User.create({
email: req.body.email,
password: req.body.password,
})
.then(function () {
res.redirect(307, "/api/login");
})
.catch(function (err) {
console.log(err);
res.json(err);
});
});
app.get("/logout", function (req, res) {
req.logout();
res.redirect("/");
});
app.get("/api/user_data", function (req, res) {
if (!req.user) {
res.json({});
} else {
res.json({
email: req.user.email,
id: req.user.id,
});
}
});
};
index.js,from models this和user.js是我的models目录中仅有的两个文件
"use strict";
const fs = require("fs");
const path = require("path");
const Sequelize = require("sequelize");
const basename = path.basename(__filename);
const env = process.env.NODE_ENV || "development";
const config = require(__dirname + "/../config/config.json")[env];
const db = {};
let sequelize;
if (config.use_env_variable) {
sequelize = new Sequelize(process.env[config.use_env_variable], config);
} else {
sequelize = new Sequelize(
config.database,
config.username,
config.password,
config
);
}
fs.readdirSync(__dirname)
.filter((file) => {
return (
file.indexOf(".") !== 0 && file !== basename && file.slice(-3) === ".js"
);
})
.forEach((file) => {
const model = path.join(__dirname, file);
sequelize["import"];
db[model.name] = model;
});
Object.keys(db).forEach((modelName) => {
if (db[modelName].associate) {
db[modelName].associate(db);
}
});
db.sequelize = sequelize;
db.Sequelize = Sequelize;
module.exports = db;
api-routes.js,来自我的路由目录:
var bcrypt = require("bcryptjs");
module.exports = function (sequelize, DataTypes) {
var User = sequelize.define("User", {
email: {
type: DataTypes.STRING,
allowNull: false,
unique: true,
validate: {
isEmail: true,
},
},
password: {
type: DataTypes.STRING,
allowNull: false,
},
});
User.prototype.validPassword = function (password) {
return bcrypt.compareSync(password, this.password);
};
User.hook("beforeCreate", function (user) {
user.password = bcrypt.hashSync(
user.password,
bcrypt.genSaltSync(10),
null
);
});
return User;
};
var db = require("../models");
var passport = require("../config/passport");
module.exports = function (app) {
app.post("/api/login", passport.authenticate("local"), function (req, res) {
res.json("/members");
});
app.post("/api/signup", function (req, res) {
console.log(req.body);
console.log(db);
db.User.create({
email: req.body.email,
password: req.body.password,
})
.then(function () {
res.redirect(307, "/api/login");
})
.catch(function (err) {
console.log(err);
res.json(err);
});
});
app.get("/logout", function (req, res) {
req.logout();
res.redirect("/");
});
app.get("/api/user_data", function (req, res) {
if (!req.user) {
res.json({});
} else {
res.json({
email: req.user.email,
id: req.user.id,
});
}
});
};
您应该更正模型的注册过程:
.forEach((file) => {
const modelFile = path.join(__dirname, file);
const model = sequelize['import'](modelFile)
db[model.name] = model;
})
似乎您没有正确导入数据库如果console.logdb显示undefined,那么它就不是了没有您误解了我,undefined:“C:\\Users\\LENOVO\\Desktop\\code\\Breel\\models\\user.js”是db对象的第一部分,下一部分是sequelize.Show modelsmodule@Anatoly我在models目录中添加了唯一的其他文件,就是这样!谢谢你,Anatoly,你是个救星。你能告诉我在哪里添加上面的代码段吗?你需要在我的答案中用这个替换index.js中的.forEach