How to update a model? .updateAttributes is not a function - node.js

Question

I'm building a Node Express app, with Postgres as DB and Sequelize as ORM.
I have a router.js file:
router.route('/publish')
.put((...args) => controller.publish(...args));
controller.js which looks like this:
publish(req, res, next) {
helper.publish(req)
.then((published) => {
res.send({ success: true, published });
});
}
And a helper.js
publish(req) {
return new Promise((resolve, reject) => {
Article.findAll({
where: { id: req.query.article_id },
attributes: ['id', 'state']
})
.then((updateState) => {
updateState.updateAttributes({
state: 2
});
})
.then((updateState) => {
resolve(updateState);
});
});
}
So for example when I hit PUT http://localhost:8080/api/publish?article_id=3555 I should get:
{
"success": true,
"published": [
{
"id": 3555,
"state": 2
}
]
}
The current state of the article is 1.
However, I get the following error Unhandled rejection TypeError: updateState.updateAttributes is not a function. When I remove the updateState.updateAttributes part from my helper.js I get the response with the current state.
How do I update the state of the article correctly?

Answer 1

You should just change findAll with findOne , as you are just trying to find specific article by id :
Article.fineOne({ //<--------- Change here
where: { id: req.query.article_id },
attributes: ['id', 'state']
})
.then((updateState) => {
updateState.updateAttributes({state: 2}); //<------- And this will work
})
But if you still want to go with findAll and to know how to use that , Please try this and read the comments , that will clear all your doubts :
Article.findAll({
where: { id: req.query.article_id },
attributes: ['id', 'state']
})
.then((updateState) => {
// updateState will be the array of articles objects
updateState.forEach((article) => {
article.updateAttributes({ state: 2 });
});
//-------------- OR -----------------
updateState.forEach((article) => {
article.update({ state: 2 });
});
})