我有两个模型,用户和连接。花了几个小时试图弄清楚为什么我不能在假设关联有效的情况下进行查询,直到我终于意识到应该执行每个模型的关联函数的 models/index.js 中的代码块(从第 27 行开始)不是甚至开火。 Else block 每次都会触发并将“标志 1”记录到控制台。
我查看了无数其他模型定义和 index.js 文件的示例,这些示例进行了微小的更改,以查看是否有任何东西可以解决问题,但我没有任何运气。完全迷失了。我错过了什么吗?
用户.js
'use strict';
...
module.exports = function(sequelize, DataTypes) {
var User = sequelize.define('User', {
id: {
type: DataTypes.INTEGER,
autoIncrement: true,
allowNull: false,
primaryKey: true
},
email: {
type: DataTypes.STRING,
unique: true,
allowNull: false,
isEmail: true
},
password: {
type: DataTypes.STRING
},
name: {
type: DataTypes.STRING
},
avatarUrl: {
type: DataTypes.STRING
},
resetPasswordExpires: {
type: DataTypes.DATE
},
resetPasswordToken: {
type: DataTypes.STRING
},
createdAt: {
type: DataTypes.DATE
},
updatedAt: {
type: DataTypes.DATE
}
}, {
tableName: 'users',
instanceMethods: instanceMethods,
classMethods: {
associate: function(models) {
User.hasMany(models.Connection);
},
encryptPassword: function(password, cb) {
...
},
findUser: function(email, password, cb) {
...
}
},
hooks: {
...
},
indexes: [
...
]
});
return User;
};
};
连接.js
'use strict';
module.exports = function(sequelize, DataTypes) {
var Connection = sequelize.define('Connection', {
status: {
type: DataTypes.BOOLEAN,
defaultValue: false
}
}, {
classMethods: {
associate: function(models) {
Connection.belongsTo(models.User);
}
}
});
return Connection;
};
这是模型/index.js
'use strict';
var fs = require('fs');
var path = require('path');
var Sequelize = require('sequelize');
var basename = path.basename(module.filename);
var env = process.env.NODE_ENV || 'development';
var config = require(__dirname + '/../config/config.json')[env];
var db = {};
if (config.use_env_variable) {
var sequelize = new Sequelize(process.env[config.use_env_variable]);
} else {
var sequelize = new Sequelize(config.database, config.username, config.password, config);
}
fs
.readdirSync(__dirname)
.filter(function(file) {
return (file.indexOf('.') !== 0) && (file !== basename) && (file.slice(-3) === '.js');
})
.forEach(function(file) {
var model = sequelize['import'](path.join(__dirname, file));
db[model.name] = model;
});
Object.keys(db).forEach(function(modelName) {
if (db[modelName].associate) {
console.log("Flag 0")
db[modelName].associate(db);
} else {
console.log("Flag 1");
}
});
db.sequelize = sequelize;
db.Sequelize = Sequelize;
module.exports = db;
最佳答案
只是在开玩笑。弄清楚了...
http://docs.sequelizejs.com/manual/tutorial/upgrade-to-v4.html
classMethods 和 instanceMethods 被移除。
关于javascript - Sequelize associate 未从 index.js 执行,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/45079710/