node db migrator:在node.js中内置的数据库迁移工具 源码

db-migrator-core 一个内置在node.js中的数据库迁移器工具。 用法 const { DbMigrator } = require ( 'db-migrator-core' ) ; const DbMigratorMongo = require ( 'db-migrator-mongo' ) ; const migrator = new DbMigrator ( ) ; migrator . loadModule ( DbMigratorMongo ) ; // load any sub-package // migration configs const migrators = [ { from : { collection : 'students' } , to : { collection : 'students_copy'