Creating a foreignKey in sequelize, that is not a integer association - node.js

Question

I want to translate this psql table creation query to sequelize:
PSQL:
CREATE TABLE categories
(
id INTEGER NOT NULL PRIMARY KEY,
name CHARACTER VARYING(50) NOT NULL UNIQUE,
description CHARACTER VARYING(100) NOT NULL
);
CREATE TABLE posts
(
id INTEGER NOT NULL PRIMARY KEY,
title CHARACTER VARYING(50) NOT NULL,
content CHARACTER VARYING(100) NOT NULL,
from_category CHARACTER VARYING(50) NOT NULL,
CONSTRAINT fk_from_category
FOREIGN KEY(from_category)
REFERENCES categories(name)
)
Its a simple fk association, with varchar type.
I have read sequelize docs, but i still don't know how to change the relation from primary keys to varchar.
From what i read, this is what you can do with associations:
Post.belongsTo(Category, {
foreignKey: {
onDelete: ...,
onUpdate: ...,
validate: {...},
},
});
and thats all i could find about on youtube too..
I would be really happy if you can help me. I have spent too much time on this already, but i want it to work!

Answer 1

Follow this example using belongsTo:
class Category extends Model { }
Category.init({
id: {
type: DataTypes.INTEGER,
primaryKey: true
},
name: {
type: DataTypes.STRING,
unique: true,
allowNull: false
},
description: {
type: DataTypes.STRING,
allowNull: false
}
}, { sequelize, modelName: 'categories' });
class Post extends Model { }
Post.init({
id: {
type: DataTypes.INTEGER,
primaryKey: true
},
title: {
type: DataTypes.STRING,
allowNull: false
},
content: {
type: DataTypes.STRING,
allowNull: false
},
from_category: {
type: DataTypes.STRING,
allowNull: false
}
}, { sequelize, modelName: 'posts' });
Post.belongsTo(Category, {
foreignKey: 'from_category',
targetKey: 'name'
});
Read more about to understand with more details in the official docs.