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I'm using the console in Ruby on Rails 3.1.1, and I'm finding its command history (up arrow) to be really flaky. I've run the commands p = Product.by_name 'Acme' and p.add_search_term('Snipe') several times today, across several console sessions.
Yet, when I reload the Ruby on Rails console, only the first one shows in my command history, not the second. Sometimes they are both there in the history after I reload the console. On top of that, I see commands in my history that are from several days ago after pressing up arrow only a few times. Is there some sort of configuration that I need to change or is this a bug?
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IRB or rails console commands are stored in the file irb-history. If you are using pry. You can find your history in ~/. pry_history file.
Rails console is an irb session that is built into the rails environment and is accessed by typing rails c into the terminal. It can be used to test association methods, validations and check error messages when building a rails app.
Go to your browser and open http://localhost:3000, you will see a basic Rails app running. You can also use the alias "s" to start the server: bin/rails s . The server can be run on a different port using the -p option. The default development environment can be changed using -e .
From How To – Persist Rails or IRB Console Command History After Exit.
Create, or edit your ~/.irbrc file to include:
require 'irb/ext/save-history'
IRB.conf[:SAVE_HISTORY] = 200
IRB.conf[:HISTORY_FILE] = "#{ENV['HOME']}/.irb-history"
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