Ruby on Rails - Global Variable?

Question

I am a new Ruby on Rails user and had a question. I have an idea of what I want my Users DB to look like but was wondering whether or not I should add an additional value to

Answer 1

A global variable doesn't fit your need. It doesn't spread across all the Ruby processes. If your web server spawns 5 ruby processes to handle 5 request at the same time, the variable defined in the first process won't be visible to the others.

There are other solutions available. You can use a database and store the flag/information on the database. Otherwise, you can use a file and store the value in the file. The best solution would be an in-memory shared data source, such as memcached or Redis.