我在NodeJS中有以下模型,包括sequelize和MySQL数据库:
var Sequelize = require('sequelize');
var User = sequelize.define('user', {
id: {
type: Sequelize.INTEGER,
autoIncrement: true,
primaryKey: true
},
...
};
我正在尝试使用以下代码向我的数据库添加新用户:
sequelize.transaction().then(function(t) {
User.create({/* User data without id */}, {
transaction: t
}).then(function() {
t.commit();
}).catch(function(error) {
t.rollback();
});
});
之后,我收到了下一个错误:
Executing (47f19f7b-a02d-4d72-ba7e-d5045520fffb): START TRANSACTION;
Executing (47f19f7b-a02d-4d72-ba7e-d5045520fffb): SET SESSION TRANSACTION ISOLATION LEVEL REPEATABLE READ;
Executing (47f19f7b-a02d-4d72-ba7e-d5045520fffb): SET autocommit = 1;
Executing (47f19f7b-a02d-4d72-ba7e-d5045520fffb): INSERT INTO `user` (`id`, /* next fields */) VALUES (DEFAULT, /* next values */);
Executing (47f19f7b-a02d-4d72-ba7e-d5045520fffb): ROLLBACK;
错误信息:
[SequelizeDatabaseError: ER_NO_DEFAULT_FOR_FIELD: Field 'id' doesn't have a default value]
name: 'SequelizeDatabaseError',
message: 'ER_NO_DEFAULT_FOR_FIELD: Field \'id\' doesn\'t have a default value'
但是,如果我手动设置id值,它会起作用。似乎sequelize试图在id字段中设置默认值,而不是设置自动增量整数。我在我的数据库中也将此字段定义为autoIncrement。
我该如何插入?我是否必须手动设置ID?
修改
这是我的表定义:
CREATE TABLE `user` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`uid` varchar(9) NOT NULL,
`name` varchar(20) NOT NULL,
`email` varchar(30) DEFAULT NULL,
`birthdate` date NOT NULL,
PRIMARY KEY (`id`),
UNIQUE KEY `uid_UNIQUE` (`uid`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
答案 0 :(得分:16)
您必须确保自己根本不发送id
密钥。
我做了一个快速的最小测试,看起来效果很好:
var Sequelize = require('sequelize');
var sequelize = new Sequelize('cake3', 'root', 'root', {
define: {
timestamps: false
},
});
var User = sequelize.define('user1', {
id: {
type: Sequelize.INTEGER,
autoIncrement: true,
primaryKey: true
},
name: {
type: Sequelize.STRING
}
});
sequelize.transaction().then(function(t) {
User.create({name:'test'}, {
transaction: t
}).then(function() {
t.commit();
}).catch(function(error) {
console.log(error);
t.rollback();
});
});
表转储:
CREATE TABLE `user1s` (
`id` int(11) NOT NULL,
`name` varchar(20) NOT NULL
) ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8;
ALTER TABLE `user1s`
ADD PRIMARY KEY (`id`);
ALTER TABLE `user1s`
MODIFY `id` int(11) NOT NULL AUTO_INCREMENT,AUTO_INCREMENT=1;
答案 1 :(得分:0)
在迁移中,添加以下代码行:
await queryInterface.sequelize.query("ALTER TABLE table_name AUTO_INCREMENT = 1000000;");