MagLev Database Explorer

MagLev Database Explorer is a Rails application that allow you to view and modify objects persisted in MagLev/GemStone and to debug Rails applications. MagLev Database Explorer is a Rails Engine that can be integrated in your Rails application.

http://www.youtube.com/watch?v=27mS1BNP7wQ

Installation

You can use MagLev Database Explorer as a Rails Engine or as a stand-alone application, in order to use together with non-Rails application.

Rails Engine

Download the Gem source code, build the Gem and install it. Alternatively, install the Gem from Rubygems.

gem install maglev-database-explorer

Add the Gem the Gemfile of your Rails application.

Add a route to your Rails application. You can currently not change the name of the route.

Rails.application.routes.draw do
  mount MaglevDatabaseExplorer::Engine => "/maglev-database-explorer"
end

Run your application.

rails server

You can access MagLev Database Explorer at this URL: http://hostname:3001/maglev-database-explorer/

Note: MagLev Database Explorer spawns a second web server for debugging purposes. The port number is always the default port incremented by one.

Stand-alone application

Install the Gem and run maglev-database-explorer on your console.

Rails Debugging

You can debug Rails application by executing the following statement in your application code.

MaglevDatabaseExplorer.halt

There are currently no automatic Rails exception handlers that automatically spawn a debug session for Rails expcetions.

Explore and modify objects in your Rails application running on MagLev.