How to get user information instead of just ID sequelize? - mysql

Question

I am using sequelize with mysql,
I have 3 models
posts
Comments
users
posts model
module.exports = (sequelize, DataTypes) => {
const Post = sequelize.define('Post', {
title: DataTypes.STRING,
content: DataTypes.TEXT,
userId: DataTypes.INTEGER
}, {});
Post.associate = function(models) {
// associations can be defined here
Post.hasMany(models.Comment, {
foreignKey: 'postId',
as: 'comments',
onDelete: 'CASCADE',
})
Post.belongsTo(models.User, {
foreignKey: 'userId',
as: 'author',
onDelete: 'CASCADE',
})
};
return Post;
};
comments model
const user = require("./user");
module.exports = (sequelize, DataTypes) => {
const Comment = sequelize.define(
"Comment",
{
postId: DataTypes.INTEGER,
comment: DataTypes.TEXT,
userId: DataTypes.INTEGER,
},
{}
);
Comment.associate = function (models) {
// associations can be defined here
Comment.belongsTo(
models.User,
{
foreignKey: "userId",
as: "author",
me: "name",
},
{ name: user.name }
);
Comment.belongsTo(models.Post, {
foreignKey: "postId",
as: "post",
});
};
return Comment;
};
users model
module.exports = (sequelize, DataTypes) => {
const User = sequelize.define(
"User",
{
name: DataTypes.STRING,
email: DataTypes.STRING,
},
{}
);
User.associate = function (models) {
// associations can be defined here
User.hasMany(models.Post, {
foreignKey: "userId",
as: "posts",
onDelete: "CASCADE",
});
User.hasMany(models.Comment, {
foreignKey: "userId",
as: "comments",
onDelete: "CASCADE",
});
};
return User;
};
and following is my response i am getting when i execute the following query
const getAllPosts = async (req, res) => {
try {
const posts = await models.Post.findAll({
include: [
{
model: models.Comment,
as: "comments"
},
{
model: models.User,
as: "author"
}
]
});
return res.status(200).json({ posts });
} catch (error) {
return res.status(500).send(error.message);
}
};
RESPONSE
"posts": [
{
"id": 1,
"title": "1st post ever on this server",
"content": "This is the content of the first post published on this type or architecture",
"userId": 1,
"createdAt": "2021-01-31T10:00:45.000Z",
"updatedAt": "2021-01-31T10:00:45.000Z",
"comments": [
{
"id": 1,
"postId": 1,
"comment": "this is the comment on first post",
"userId": 1, // Also need a key val pair of username and his email ID just instead of UserID
"createdAt": null,
"updatedAt": null
},
{
"id": 2,
"postId": 1,
"comment": "comment second",
"userId": 1,
"createdAt": "2021-01-31T15:34:27.000Z",
"updatedAt": "2021-01-31T15:34:27.000Z"
}
],
"author": {
"id": 1,
"name": "test user",
"email": "testuser#gmail.com",
"createdAt": null,
"updatedAt": null
}
}
]
}
I need the user name of commented user name and email for which i have fields in the table
but i am just getting user ID
how can i go about it,
I am very much new in sequelize, I tried but i am getting get same hasMany and benlongsTo results.

Answer 1

From what I see you doing, you need to run a nested include when getting the comment.
Try this modified code.
const getAllPosts = async (req, res) => {
try {
const posts = await models.Post.findAll({
include: [
{
model: models.Comment,
as: "comments",
include: [
{
model: models.User,
as: "author"
}
]
},
{
model: models.User,
as: "author"
}
]
});
return res.status(200).json({ posts });
} catch (error) {
return res.status(500).send(error.message);
}
};