1
我有一个情况，我从两个表中查询信息，这些表与“through”表有多对多关系。当我进行查询时，似乎通过不使用“through”表作为表连接引用并使用两个表属性接收输出记录，但我无法访问连接表的字段属性，因此我正确查询。这是输出的值。Sequelize查询多对多关系和访问对象
{"fullNameSlug":"Tester Test","email":"[email protected]","firstName":"Tester","lastName":"Test","teams":[{"teamName":"Sales","member":{"memberId":1,"memberEmail":"[email protected]","organizationId":1,"teamId":1,"userId":1,"created_at":"2016-08-21T21:15:19.000Z","updated_at":"2016-08-21T22:00:32.000Z","organization_id":1,"team_id":1,"user_id":1}}]}
这里是我的查询，我是怎么设置的数据：
.get(function(req, res){
models.User.find({
where: {
organizationId: organization.organizationId
}, attributes: ['email', 'firstName', 'lastName'],
include: [{
model: models.Team,
attributes: ['teamName']
}]
});
}).then(function(currentUsers){
res.jsonp(currentUsers);
console.log(currentUsers);
});
这里是我试图访问teamName在我看来：{{currentUsers.teams.teamName}}，它没有返回值，但{{currentUsers.email}}返回正确的用户电子邮件。
用户表：
module.exports = function(sequelize, DataTypes) {
var User = sequelize.define('user', {
userId: {
type: DataTypes.INTEGER,
field:'user_id',
autoIncrement: true,
primaryKey: true
},
firstName: {
type: DataTypes.STRING,
field: 'first_name'
},
lastName: {
type: DataTypes.STRING,
field: 'last_name'
},
email: {
type: DataTypes.STRING,
isEmail: true,
unique: true,
set: function(val) {
this.setDataValue('email', val.toLowerCase());
}
},
password: DataTypes.STRING,
organizationId: {
type: DataTypes.INTEGER,
field: 'organization_id',
allowNull: true
}
}, {
underscored: true,
freezeTableName: true,
},
classMethods: {
associate: function(db) {
User.belongsToMany(db.Organization, { through: 'member', foreignKey: 'user_id'}),
User.belongsToMany(db.Team, { through: 'member', foreignKey: 'user_id'})
}
});
return User;
}
团队表：
module.exports = function(sequelize, DataTypes) {
var Team = sequelize.define('team', {
teamId: {
type: DataTypes.INTEGER,
field: 'team_id',
autoIncrement: true,
primaryKey: true,
notNull: true
},
teamName: {
type: DataTypes.STRING,
field: 'team_name'
},
organizationId: {
type: DataTypes.INTEGER,
field: 'organization_id'
},
},{
underscored: true,
freezeTableName: true,
classMethods: {
associate: function(db) {
Team.belongsToMany(db.User, { through: 'member', foreignKey: 'team_id' });
},
}
});
return Team;
}
会员表：
module.exports = function(sequelize, DataTypes) {
var Member = sequelize.define('member', {
memberId: {
type: DataTypes.INTEGER,
field: 'member_id',
autoIncrement: true,
primaryKey: true
},
memberEmail: {
type: DataTypes.STRING,
field: 'member_email',
isEmail: true,
unique: true
},
organizationId: {
type: DataTypes.INTEGER,
field: 'organization_id',
allowNull: true
},
teamId: {
type: DataTypes.INTEGER,
field: 'team_id',
allowNull: true
},
userId: {
type: DataTypes.INTEGER,
field: 'user_id',
allowNull: true
}
},{
underscored: true,
freezeTableName: true,
});
return Member;
}
输出SQL：
SELECT `user`.*, `teams`.`team_id` AS `teams.teamId`, `teams`.`team_name` AS `teams.teamName`, `teams.member`.`member_id` AS `teams.member.memberId`, `teams.member`.`member_email` AS `teams.member.memberEmail`, `teams.member`.`organization_id` AS `teams.member.organizationId`, `teams.member`.`team_id` AS `teams.member.teamId`, `teams.member`.`user_id` AS `teams.member.userId`, `teams.member`.`created_at` AS `teams.member.created_at`, `teams.member`.`updated_at` AS `teams.member.updated_at`, `teams.member`.`organization_id` AS `teams.member.organization_id`, `teams.member`.`team_id` AS `teams.member.team_id`, `teams.member`.`user_id` AS `teams.member.user_id` FROM (SELECT `user`.`user_id` AS `userId`, `user`.`email`, `user`.`first_name` AS `firstName`, `user`.`last_name` AS `lastName` FROM `user` AS `user` WHERE `user`.`organization_id` = 1 LIMIT 1) AS `user` LEFT OUTER JOIN (`member` AS `teams.member` INNER JOIN `team` AS `teams` ON `teams`.`team_id` = `teams.member`.`team_id`) ON `user`.`userId` = `teams.member`.`user_id`;