entityMap|blocks|key|64unu|text|你需要|type|unstyled|depth|inlineStyleRanges|entityRanges|data|73han|User.hasMany(user_tc)%7C%7CUser.hasOne(User_tc)|code-block|syntax|javascript|c7phr|使用to+query+usr_tc+from+User|83p5a^0|0|0|0^^$0|$]|1|@$2|3|4|5|6|7|8|K|9|@]|A|@]|B|$]]|$2|C|4|D|6|E|8|L|9|@]|A|@]|B|$F|G]]|$2|H|4|I|6|7|8|M|9|@]|A|@]|B|$]]|$2|J|4|-4|6|7|8|N|9|@]|A|@]|B|$]]]]

You need 

<pre><code>User.hasMany(user_tc)||User.hasOne(User_tc)
</code></pre>

to use be able to query usr_tc from User

entityMap|blocks|key|ak4d7|text|好了，我想出了如何实现这一点。以下是我所做的：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|emqep|在我的用户模型中：|7jk46|const+Sequelize+=+require('sequelize');
const+connection+=+require('../middleware/sql-connection');
const+UserTC+=+require('./user-tc');

const+User+=+connection.define('USR',+{
++++'ID':+{+type:+Sequelize.BIGINT,+primaryKey:+true+},
++++'NM':+{+type:+Sequelize.STRING,+allowNull:+false+},
++++'EMAIL':+{+type:+Sequelize.STRING,+allowNull:+false,+validate:+{+isEmail:+true+}+},
++++'PHONE':+{+type:+Sequelize.STRING,+allowNull:+false+},
++++'STS':+{+type:+Sequelize.BOOLEAN,+allowNull:+false+}
});
User.hasOne(UserTC,+{+as:+'userTc',+foreignKey:+'USR_ID'+});
module.exports+=+User;|code-block|syntax|javascript|4b7cl|在我的User_TC模型中：|6jn4u|const+Sequelize+=+require('sequelize');
const+connection+=+require('../middleware/sql-connection');

const+UserTC+=+connection.define('USR_TC',+{
++++'USR_ID':+{+type:+Sequelize.BIGINT,+primaryKey:+true,+references:+'USR',+referencesKey:+'ID'+},
++++'TC_ACPT':+{+type:+Sequelize.BOOLEAN,+allowNull:+false+}
});

module.exports+=+UserTC;|fa26h|和下面的findOne方法：|1jb4n|User.findOne({
++++include:+[
++++++++{+model:+UserTC,+as:+'userTc'+}
++++],
++++where:+{+ID:+req.userData.id+}
})
++++.then(user+=>+{
++++++++return+res.status(200).json(user);
++++})
++++.catch(err+=>+{
++++++++console.log(err);
++++++++return+res.status(500).json({
++++++++++++message:+err
++++++++});
++++});|a3qdr|像一个护身符一样工作:)+:)，下面是我的输出：|4rfm5|{
++++"ID":+"1",
++++"NM":+"Tenant-1",
++++"EMAIL":+"tenant1@gmail.com",
++++"PHONE":+"1234567890",
++++"STS":+true,
++++"userTc":+{
++++++++"USR_ID":+"1",
++++++++"TC_ACCPT":+false
++++}
}|81dlq^0|0|0|0|0|0|0|0|0|0^^$0|$]|1|@$2|3|4|5|6|7|8|W|9|@]|A|@]|B|$]]|$2|C|4|D|6|7|8|X|9|@]|A|@]|B|$]]|$2|E|4|F|6|G|8|Y|9|@]|A|@]|B|$H|I]]|$2|J|4|K|6|7|8|Z|9|@]|A|@]|B|$]]|$2|L|4|M|6|G|8|10|9|@]|A|@]|B|$H|I]]|$2|N|4|O|6|7|8|11|9|@]|A|@]|B|$]]|$2|P|4|Q|6|G|8|12|9|@]|A|@]|B|$H|I]]|$2|R|4|S|6|7|8|13|9|@]|A|@]|B|$]]|$2|T|4|U|6|G|8|14|9|@]|A|@]|B|$H|I]]|$2|V|4|-4|6|7|8|15|9|@]|A|@]|B|$]]]]

Ok, I figured out how to achieve this. Following is what I have done:

In my User Model:

<pre><code>const Sequelize = require('sequelize');
const connection = require('../middleware/sql-connection');
const UserTC = require('./user-tc');

const User = connection.define('USR', {
 'ID': { type: Sequelize.BIGINT, primaryKey: true },
 'NM': { type: Sequelize.STRING, allowNull: false },
 'EMAIL': { type: Sequelize.STRING, allowNull: false, validate: { isEmail: true } },
 'PHONE': { type: Sequelize.STRING, allowNull: false },
 'STS': { type: Sequelize.BOOLEAN, allowNull: false }
});
User.hasOne(UserTC, { as: 'userTc', foreignKey: 'USR_ID' });
module.exports = User;
</code></pre>

in my User_TC model:

<pre><code>const Sequelize = require('sequelize');
const connection = require('../middleware/sql-connection');

const UserTC = connection.define('USR_TC', {
 'USR_ID': { type: Sequelize.BIGINT, primaryKey: true, references: 'USR', referencesKey: 'ID' },
 'TC_ACPT': { type: Sequelize.BOOLEAN, allowNull: false }
});

module.exports = UserTC;
</code></pre>

and the following findOne method:

<pre><code>User.findOne({
 include: [
 { model: UserTC, as: 'userTc' }
 ],
 where: { ID: req.userData.id }
})
 .then(user =&gt; {
 return res.status(200).json(user);
 })
 .catch(err =&gt; {
 console.log(err);
 return res.status(500).json({
 message: err
 });
 });
</code></pre>

worked like a charm :) :) and following is my output:

<pre><code>{
 "ID": "1",
 "NM": "Tenant-1",
 "EMAIL": "tenant1@gmail.com",
 "PHONE": "1234567890",
 "STS": true,
 "userTc": {
 "USR_ID": "1",
 "TC_ACCPT": false
 }
}
</code></pre>

I am trying to query a model along with it child. The child references the parent using belong to. I am trying to findOne parent and include the child in the result.

Following is my user model:

<pre><code>const Sequelize = require('sequelize');
const connection = require('../middleware/sql-connection');

const User = connection.define('USR', {
 'ID': { type: Sequelize.BIGINT, primaryKey: true },
 'NM': { type: Sequelize.STRING, allowNull: false },
 'EMAIL': { type: Sequelize.STRING, allowNull: false, validate: { isEmail: true } },
 'PHONE': { type: Sequelize.STRING, allowNull: false },
 'STS': { type: Sequelize.BOOLEAN, allowNull: false }
});

module.exports = User;
</code></pre>

Following is my User_TC model:

<pre><code>const Sequelize = require('sequelize');
const connection = require('../middleware/sql-connection');
const User = require('./user');

const UserTC = connection.define('USR_TC', {
 'USR_ID': { type: Sequelize.BIGINT, primaryKey: true },
 'TC_ACPT': { type: Sequelize.BOOLEAN, allowNull: false }
});

UserTC.belongsTo(User, { as: 'User', foreignKey: 'USR_ID' });
module.exports = UserTC;
</code></pre>

And following is my findOne method:

<pre><code>User.findOne({
 include: [
 { model: UserTC, as: 'userTc' }
 ],
 where: { ID: req.userData.id }
})
 .then(user =&gt; {
 return res.status(200).json(user);
 })
 .catch(err =&gt; {
 console.log(err);
 return res.status(500).json({
 message: err
 });
 });
</code></pre>

The output throws me an error: <code>SequelizeEagerLoadingError: USR_TC is not associated to USR!</code>

Please advice!

Sequelize - query object along with its child

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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