Javascript 从SequelizeJS中的表中选择特定属性
这些是我的表(不包括所有列)和关系Javascript 从SequelizeJS中的表中选择特定属性,javascript,mysql,node.js,orm,sequelize.js,Javascript,Mysql,Node.js,Orm,Sequelize.js,这些是我的表(不包括所有列)和关系 var client = schema.define('client', { name: { type: Sequelize.STRING, allowNull: false }, } var task = schema.define('task', { name: { type: Sequelize.STRING, unique: true, allow
var client = schema.define('client', {
name: {
type: Sequelize.STRING,
allowNull: false
},
}
var task = schema.define('task', {
name: {
type: Sequelize.STRING,
unique: true,
allowNull: false
},
description: {
type: Sequelize.STRING,
}
}
var clientTask = schema.define('clientTask', {
value: {
type: Sequelize.STRING,
allowNull: false,
defaultValue: false
},
}
client.belongsToMany(task, { through: clientTask });
task.belongsToMany(client, { through: clientTask });
我只想从task中获取名称
,从clientTask中获取值
,我按客户端id搜索,下面是我迄今为止尝试的内容
client.findAll({
attributes: [],
where: {id: clientId},
include: [{
model: task,
attributes: ['name']
}]
}).then(function (clients) {
//client.tasks is array with task objects(models) with only name attribute
//client.tasks[0].clientTask is object(models) with all attributes but I want only `value`
}
基本上我想要的是这个查询
Select
tasks.name,
clienttasks.value
From
clients Inner Join
clienttasks
On clienttasks.clientId = clients.id Inner Join
tasks
On clienttasks.taskId = tasks.id
Where clients.id = ?
你可以这样问它
clients.findById(1, {
attributes: ['id'],
include: [{
model: tasks,
attributes: ['name'],
required: false
}]
}).then(function(client) {
return client.tasks.map(function(task) {
return {
name: task.name,
value: task.clients_tasks.value
};
});
}).then(function(result) {
console.log(result);
// The rest of you logic here...
});
你可以这样问它
clients.findById(1, {
attributes: ['id'],
include: [{
model: tasks,
attributes: ['name'],
required: false
}]
}).then(function(client) {
return client.tasks.map(function(task) {
return {
name: task.name,
value: task.clients_tasks.value
};
});
}).then(function(result) {
console.log(result);
// The rest of you logic here...
});