How can count the asscociation in sequelize js - node.js

Question

When I make the following query to get the poll with option and each option have the voteCount. But it gives wring count.
router.get("/", (req, res) => {
Poll.findAll({
where: { subjectId: req.query.subjectId },
include: {
model: PollOption,
attributes: {
include: [[Sequelize.fn("COUNT", "pollVote.id"), "voteCount"]]
},
required: false,
include: {
model: PollVote,
// attributes: [],
required: false
}
},
group:['pollOptions.id']
}).then(poll => {
console.log(poll);
res.send({ poll });
});
});
I get this as the response
{
"poll": [
//Array of the poll
{
"id": 3,
"module_id": "mbbs",
"question": "Test Question Poll",
"pollOptions": [
{
"id": 1,
"pollId": 3,
"option": "Option 1",
"voteCount": 1,
"pollVotes": [
{
"id": 6,
"pollOptionId": 1,
"pollId": 3,
"userId": 3
}
]
},
{
"id": 2,
"pollId": 3,
"userId": 120,
"option": "Option 2",
"voteCount": 2,
//Vote must be 1 but return 2
"pollVotes": [
{
"id": 2,
"pollOptionId": 2,
"pollId": 3,
"userId": 1
}
]
}
]
},
{
"id": 4,
"module_id": "mbbs",
"question": "Test Question Poll 4",
"subjectId": 1,
"pollOptions": [
{
"id": 3,
"pollId": 4,
"option": "Option 1sd",
"voteCount": 1,
"pollVotes": []
}
]
}
]
}
Where voteCount is wrong.
How can I make it right.
Sql query is as follow
SELECT poll.id, poll.module_id, poll.question, poll.userId, poll.subjectId, poll.date, poll.expireDate, pollOptions.id AS pollOptions.id, pollOptions.pollId AS pollOptions.pollId, pollOptions.userId AS pollOptions.userId, pollOptions.option AS pollOptions.option, COUNT('pollVote.id') AS pollOptions.voteCount, pollOptions->pollVotes.id AS pollOptions.pollVotes.id, pollOptions->pollVotes.pollOptionId AS pollOptions.pollVotes.pollOptionId, pollOptions->pollVotes.pollId AS pollOptions.pollVotes.pollId, pollOptions->pollVotes.userId AS pollOptions.pollVotes.userId FROM poll AS poll LEFT OUTER JOIN pollOption AS pollOptions ON poll.id = pollOptions.pollId LEFT OUTER JOIN pollVote AS pollOptions->pollVotes ON pollOptions.id = pollOptions->pollVotes.pollOptionId WHERE poll.subjectId = '1' GROUP BY poll.id;

Answer 1

Your sequelize statement should be as follows -
router.get("/", (req, res) => {
Poll.findAll({
where: { subjectId: req.query.subjectId },
include: {
model: PollOption,
attributes: {
include: [[Sequelize.fn("COUNT", `pollOptions->pollVotes.id`), "voteCount"]]
},
required: false,
include: {
model: PollVote,
// attributes: [],
required: false
}
},
group:['pollOptions.id']
}).then(poll => {
console.log(poll);
res.send({ poll });
});
});
Hope it helps!