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[英]${this.name}.hasMany called with something that's not a subclass of Sequelize.Model
[英]called with something that's not an instance of Sequelize.Model at Model.belongsTo
我正在尝试在两个模型之间引用外键。
但我收到这个错误:
throw new Error(this.name + '.' + Utils.lowercaseFirst(Type.toString()) + ' called with something that\'s not an instance of Sequelize.Model');
called with something that's not an instance of Sequelize.Model
at Model.belongsTo
我怎样才能解决这个问题?
到目前为止这是我的代码。
这是我的模特/ mercadolibre.js
"use strict";
var User = require('../models/index').User;
module.exports = function(sequelize, DataTypes) {
var MercadoLibre = sequelize.define("MercadoLibre", {
id: {
type: DataTypes.INTEGER,
autoIncrement: true,
primaryKey: true
},
access_token: DataTypes.STRING,
refresh_token: DataTypes.STRING,
environment_hash: DataTypes.STRING
}, {
tableName: 'mercadolibres',
underscored: true,
timestamps: true
}
);
MercadoLibre.belongsTo(User);
return MercadoLibre;
};
这是我的models / user.js
"use strict";
module.exports = function(sequelize, DataTypes) {
var User = sequelize.define("User", {
id: {
type: DataTypes.INTEGER,
autoIncrement: true,
primaryKey: true
},
name: DataTypes.STRING,
slack_id: DataTypes.STRING,
environment_hash: {
type: DataTypes.STRING,
defaultValue: DataTypes.UUIDV4
}
}, {
tableName: 'users',
underscored: false,
timestamps: false
}
);
return User;
};
这是我的models / index.js
"use strict";
var fs = require("fs");
var path = require("path");
var Sequelize = require('sequelize')
, sequelize = new Sequelize(process.env.MYSQL_DB, process.env.MYSQL_USER, process.env.MYSQL_PASSWORD, {
dialect: "mysql", // or 'sqlite', 'postgres', 'mariadb'
port: 3306, // or 5432 (for postgres)
});
var db = {};
fs
.readdirSync(__dirname)
.filter(function(file) {
return (file.indexOf(".") !== 0) && (file !== "index.js");
})
.forEach(function(file) {
var model = sequelize.import(path.join(__dirname, file));
db[model.name] = model;
});
Object.keys(db).forEach(function(modelName) {
if ("associate" in db[modelName]) {
db[modelName].associate(db);
}
});
db.sequelize = sequelize;
db.Sequelize = Sequelize;
module.exports = db;
使用这样:
module.exports = function(sequelize, DataTypes) {
var MercadoLibre = sequelize.define("MercadoLibre", {
id: {
type: DataTypes.INTEGER,
autoIncrement: true,
primaryKey: true
},
access_token: DataTypes.STRING,
refresh_token: DataTypes.STRING,
environment_hash: DataTypes.STRING
}, {
tableName: 'mercadolibres',
underscored: true,
timestamps: true,
classMethods: {
associate : function(models) {
MercadoLibre.belongsTo(models.User)
},
},
});
return MercadoLibre;
};
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