Sequelize N:M ParentModel.setChilds(ChildArray) is not a function (Magic Method?) - mysql

Question

In my program, I'd like to update many cateogories has a parent table named Column. Also, a category can contain of many columns.(N:M)
So I tried to update a category to the post, but it failed. Here is the code I've tried
let updateColumn = async function(req, res) {
let column_id = req.body.id;
let column_title = req.body.title;
let column_content_text = req.body.contentText;
let column_content_html = req.body.contentHTML;
let column_categorys = req.body.categoris;
let column_tags = req.body.tags;
let column_thumbnail_url = process.env.CDN_COLUMN_ENDPOINT;
column_thumbnail_url += column_title;
column_thumbnail_url += '/';
column_thumbnail_url += '0.png';
var category_array = [];
var tag_array = [];
await sequelize.transaction(async transaction => {
try {
await Column.update({
column_title: column_title,
column_content_text: column_content_text,
column_content_html: column_content_html,
column_thumbnail_url: column_thumbnail_url,
}, {
where: {
id: column_id,
},
}, {transaction: transaction});
const column = await Column.findOne({
where: {
id: column_id,
},
transaction,
});
for(var i in column_categorys) {
const [category, created] = await Category.findOrCreate({
where : {
category_name: column_categorys[i],
},
transaction,
});
category_array.push(category);
}
for(var j in column_tags) {
const [tag, created] = await Tag.findOrCreate({
where : {
tag_name: column_tags[j],
},
transaction,
});
tag_array.push(tag);
}
await column.setCategorys(
category_array,
{ transaction },
);
await column.setTags(
tag_array,
{ transaction },
);
res.json({
responseCode: 400,
responseMsg: 'Success',
});
} catch (err) {
console.error(err);
res.json({
responseCode: 404,
responseMsg: 'Fail',
});
}
});
}
column_info.js
const Sequelize = require('sequelize');
module.exports = class Column extends Sequelize.Model {
static init(sequelize) {
return super.init({
column_title: {
type: Sequelize.STRING(200),
allowNull: false,
unique: true,
},
column_content_text: {
type: Sequelize.STRING(10000),
allowNull: false,
},
column_content_html: {
type: Sequelize.STRING(10000),
},
column_thumbnail_url: {
type: Sequelize.STRING(300),
},
}, {
sequelize,
timestamps: true,
underscored: true,
modelName: 'Column',
tableName: 'columns',
paranoid: true,
charset: 'utf8',
collate: 'utf8_general_ci',
});
}
static associate(db) {
db.Column.belongsToMany(db.Category, {
through: 'ColumnCategory',
unique: false,
});
db.Column.belongsToMany(db.Tag, {
through: 'ColumnTag',
unique: false,
});
}
};
category_info.js
const Sequelize = require('sequelize');
module.exports = class Category extends Sequelize.Model {
static init(sequelize) {
return super.init({
category_name: {
type: Sequelize.STRING(50),
allowNull: false,
unique: true,
},
}, {
sequelize,
timestamps: false,
underscored: true,
modelName: 'Category',
tableName: 'categorys',
paranoid: false,
charset: 'utf8',
collate: 'utf8_general_ci',
});
}
static associate(db) {
db.Category.belongsToMany(db.Column, {
through: 'ColumnCategory',
unique: false,
});
}
};
model/index.js
const Sequelize = require('sequelize');
const User = require('./user');
const Baby = require('./baby_info');
const UserCase = require('./user_case');
const Column = require('./column_info');
const Tag = require('./tag_info');
const Category = require('./category_info');
const env = process.env.NODE_ENV || 'development';
const config = require(__dirname + '/../config/config')[env];
const db = {};
const sequelize = new Sequelize(config.database, config.username, config.password, config);
db.sequelize = sequelize;
db.User = User;
db.Baby = Baby;
db.UserCase = UserCase;
db.Column = Column;
db.Tag = Tag;
db.Category = Category;
User.init(sequelize);
Baby.init(sequelize);
UserCase.init(sequelize);
Column.init(sequelize);
Tag.init(sequelize);
Category.init(sequelize);
User.associate(db);
Baby.associate(db);
UserCase.associate(db);
Column.associate(db);
Tag.associate(db);
Category.associate(db);
module.exports = db;
error log
0|app | 21-01-04 16:09:26: TypeError: column.setCategorys is not a function
0|app | 21-01-04 16:09:26: at /home/ubuntu/bebenity/routes/column/column.ctrl.js:66:20
0|app | 21-01-04 16:09:26: at processTicksAndRejections (internal/process/task_queues.js:93:5)
0|app | 21-01-04 16:09:26: at async /home/ubuntu/bebenity/node_modules/sequelize/lib/sequelize.js:1090:24
0|app | 21-01-04 16:09:26: at async updateColumn (/home/ubuntu/bebenity/routes/column/column.ctrl.js:21:3)
Could you tell me what part of this code I've used relationship queries incorrectly?
Add 1
Actually, I've had a similar experience.
How to add child row in related table?? (Sequelzie N:M Relationship)
In that example, the method findOrCreate's callback value has a problem.
But, in this question, the method findOne's callback value is clearly Model Object! I have already checked through column instanceof Column that the column is the Column model instance.(It is true)
But it is a little bit different between model with Create method and findOne
Create Callback
findOne Callback

Answer 1

The solution was very simple...
Revising my column.setCategorys to column.setCategories was that...
OMG