nodejs sequelize: I can't update the primary key field's value - mysql

Question

I can update every field's value except the id (primary key). It's for a website. I want to be able to update the id via the website.
module.exports = {
schema: function (sequelize, DataTypes) {
return sequelize.define(
'T_Event',
{
id: {
type: DataTypes.STRING,
primaryKey: true
},
user_id: {
type: DataTypes.STRING
},
name: {
type: DataTypes.STRING
},
created_at: {
type: DataTypes.DATE
},
description: {
type: DataTypes.STRING
},
image: {
type: DataTypes.STRING
},
closed_at: {
type: DataTypes.DATE
}
},
{
timestamps: true,
paranoid: true,
underscored: true,
freezeTableName: true
}
)
}
I'm using sequelize 3.33.0 with node and a MySQL database.
All attributes have select,insert & update privileges.

Answer 1

Sequelize restricts this kind of operation for security reasons. Usually updating a primary key through runtime with user provided information is a bad idea. It can lead to all sort of issues, especially if the changed object is being used by other users at the moment.
I follow the rule of thumb: if the column value can be changed, it is not a good candidate for a primary key. If there is no good candidate among all columns, create one with this sole purpose.
schema: function (sequelize, DataTypes) {
return sequelize.define(
'T_Event',
{
uid: {
type: DataTypes.BIGINT,
primaryKey: true,
autoIncrement: true
},
id: {
type: DataTypes.STRING,
unique: true
},
// ...
)
}
That said, there are cases where this kind of solution isn't doable. In that case, you may use a workaround, making an update that changes the id:
T_Event.update(
{
id: new_value
}, {
where: {
uid: current_value
}
}
);