node-mysql-migration v0.2.1

node-mysql-migration

This plugin is create to simplify migration of mysql database migration.

npm install node-mysql-migration - to install util

# my_db_migrations.js
var mysql = require('mysql');
var migration = require('node-mysql-migration');

migration.migrate(mysql.createConnection({
    host     : 'host',
    user     : 'user',
    password : 'password',
    database : 'database'
}), __dirname + '/migrations');

/migrations - is a folder where all migrations scripts are located. There is no default value for it so you should specify it

V(version name)__name_of_script_separated_with_lower_underline.sql

#example
V1__init_tables.sql
V2__add_new_column.sql

for now migration support only one command in migration script. If you migration script contains the following

ALTER TABLE `tbl_name`
    ADD COLUMN `column_name` VARCHAR(250);
    
ALTER TABLE `tbl_name`
    ADD COLUMN `column_name1` VARCHAR(250);
    
UPDATE `tbl_name` SET `column_name`="asd";

then migration will fails. to solve this split such migration into three separate migration OR customize your connection settings. use:

migration.migrate(mysql.createConnection({
    host     : 'host',
    user     : 'user',
    password : 'password',
    database : 'database',
    multipleStatements: true // add this to allow multiple queries in single migration file
}), __dirname + '/migrations');

official node-mysql doc

run npm my_db_migrations.js clean to clean the data base run npm my_db_migrations.js init to init empty migration scheta table run npm my_db_migrations.js migrate to apply new migrations to your data base if such exists