编辑:我的代码中存在一行,该行未在我的示例中添加,已添加并用注释标记。
我正在为一个新项目设置服务器,并自 v5 以来第一次尝试使用 Sequelize。运行我的服务器时,抛出此错误。
/Users/me/dev/projects/my-project/node_modules/sequelize/lib/model.js:730
options = Utils.merge(_.cloneDeep(globalOptions.define), options);
^
TypeError: Cannot read property 'define' of undefined
at Function.init (/Users/me/dev/projects/my-project/node_modules/sequelize/lib/model.js:730:53)
at Object.<anonymous> (/Users/me/dev/projects/my-project/src/server/db/models/user.js:16:6)
at Module._compile (internal/modules/cjs/loader.js:736:30)
at Object.Module._extensions..js (internal/modules/cjs/loader.js:747:10)
...
在调用我的模型定义初始化期间发生错误:
const sequelize = require("../_db");
...
console.log('this runs');
class User extends Sequelize.Model {} // edit: this line was here
User.init(
{
avatar: {
default: {
type: Sequelize.URL,
value: defaultAvatar
},
type: Sequelize.STRING
},
email: {
allowNull: false,
type: Sequelize.STRING,
unique: true
},
id: {
defaultValue: Sequelize.UUIDV1,
primaryKey: true,
type: Sequelize.UUID
},
name: {
type: Sequelize.STRING
},
password: {
allowNull: false,
get() {
return () => this.getDataValue("password");
},
type: Sequelize.STRING
},
salt: {
get() {
return () => this.getDataValue("salt");
},
type: Sequelize.STRING
}
},
{ sequelize, modelName: "user" }
);
console.log('this doesn't);
这对我来说非常神秘,我不太确定出了什么问题。
最佳答案
您需要包含用户的类定义。 我在您提供的代码中看不到它。 这可以解释为什么错误说它来自“未定义”
即
const Model = Sequelize.Model;
class User extends Model {}
你可以这样做:
class User extends Sequelize.Model {}
看这里: https://sequelize.org/master/manual/models-definition.html
此外,您似乎正在使用 Sequelize 的默认模型加载器,您需要在
中定义该模型module.exports = (sequelize, DataTypes) => {
const User = sequelize.define("User", {
});
return User
};
关于javascript - 序列化 - 类型错误 : Cannot read property 'define' of undefined,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/58460033/