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Database Schema Migration

Database Migration In EverShop

Database Schema Migration

If you are writing an EverShop extension, you will almost certainly find that you need to store some information in the EverShop database.

This documentations will help you to understand how to use migration scripts to upgrade your database schema.

What is a migration script?

Every extension can have its own database schema migration scripts. When you install an extension, those migration scripts are executed automatically and the database schema is upgraded.

The migration scripts are located in the migrations directory of your extension. One migration script is a single file providing a single function that is executed when the migration script is executed.

module.exports = async function (connection) {
// Your migration script goes here

This function is passed a connection object that you can use to execute queries.