Hi, I'm trying to start the console (irb) in Ruby 1.9 with Rails 2.3.4. I have two versions installed of Ruby (1.9 & 1.8.6) and I run the Ruby 1.9 by calling: rake19, ruby19, gem19...etc And they work fine in all situations except this! it seems that its trying to load Ruby 1.8 instead! Do you know how I can change that? Macintosh-10:...
Why is my irb history no longer saving? ...
My version of ruby was compiled with editline (on os x) and I miss the features of readline in irb. How do I recompile ruby with readline support? ...
Hi. I'm (extremely) new to Ruby, having started today. I just moved from my system's Ruby 1.8 installation to Ruby 1.9, compiled from source. In doing so, irb has taken a turn for the worse. It reacts in a most unfriendly way to the non-alphanumeric control keys: UP key prints: ^[[A DOWN key prints: ^[[B DELETE key prints: ^[[3~ ...
I'm running Ruby on Windows though I don't know if that should make a difference. All I want to do is get the current working directory's absolute path. Is this possible from irb? Apparently from a script it's possible using File.expand_path(FILE) But from irb I tried the following and got a "Permission denied" error: File.new(Dir.n...
in ~/.irbrc i have these lines: require 'irb/ext/save-history' #History configuration IRB.conf[:SAVE_HISTORY] = 100 IRB.conf[:HISTORY_FILE] = "#{ENV['HOME']}/.irb-save-history" and yet when i run irb and hit the up arrow nothing happens. also the irb history file specified is not getting created and nothing is logged to it. ...
I have a Ruby script that defines a class. I would like the script to execute the statement BoolParser.generate :file_base=>'bool_parser' only when the script is invoked as an executable, not when it is require'd from irb (or passed on the command line via -r). What can I wrap around the statement above to prevent it from executing ...
Similar to this question, except in JRuby (it works in MRI Ruby). Alt-left prints a "b" in my console. Very annoying! To clarify, I've setup my terminal as described in this article, mapping option-left to escape-b. ...
I am getting very strange outputs from my IRB console. Here it is: irb(main):001:0> File.dirname(__FILE__) => ←[0;31m"←[0;0m←[0;36m.←[0;0m←[0;31m"←[0;0m Seems like an encoding issue, right? I am not sure why this is happening. Any ideas how to fix it? ...
I my model I would like to check if the app is running inside IRB consol or as a website? class MyModel < ActiveRecord::Base def xmethod if !isIRBconsol self.user_id = UserSession.find.user.id end end end ...
When I try to run the following, I get an error back from ActiveRecord stating that the connector hasn't been found. require 'activerecord' ActiveRecord::Base.establish_connection( :adaptor => "sqlite3", :database => "db.sqlite3" ) Error Message: >> ActiveRecord::Base.establish_connection("adaptor" => "sqlite3-ruby") ActiveR...
I have a library that I'm trying to get working with rails 3 (specifically feedzirra) which I can require ok in irb but it breaks the console in my app with the following error: http://pastie.org/855976 ...
I can change the irb prompt mode with irb --prompt prompt-mode I can see what null and simple does, but I can't tell the difference between null and xmp and the difference between default/classic/inf-ruby. Can someone explain to me what these other modes do? It seems pointless to have multiple modes doing the same thing. ...
For instance, in Python, I can do things like this if I want to get all attributes on an object: >>> import sys >>> dir(sys) ['__displayhook__', '__doc__', '__excepthook__', '__name__', '__package__', '__stderr__', '__stdin__', '__stdout__', '_clear_type_cache', '_current_frames', '_getframe', 'api_version', 'argv', 'builtin_module_name...
I'm really tired of typing my_ar_object.errors.full_messages in my console when i'm testing things... So, I want to define this: module ActiveRecord class Base def err errors.full_messages end end end in my ~/.irbrc so that it is exclusive to script/console. I don't want to define it in some rails initializer since...
Hi, If you have seen my previous questions, you'd already know I am a big nuby when it comes to Ruby. So, I discovered this website which is intended for C programming, but I thought whatever one can do in C, must be possible in Ruby (and more readable too). The challenge is to print out a bunch of numbers. I discovered this nifty met...
Hi, As I am going through my journey by adopting the Ruby language, I spend a lot of time inside IRb. It's just fantastic! But, as I am not very aware of it's capabilities, and still a nuby with Ruby, I would like to know the following: How can I 'flush' the session, without restarting IRb (or is this not possible). How can I configur...
I'm trying to write a rake task that will set up an environment mirroring my project. task :environment do require 'rubygems' require 'sequel' # require 'my_projects_special_files' end task :foo => [:environment] do require 'irb' IRB.start end Leads to irb complaining that "foo" doesn't exist (the name of the task) 10:28...
Trying to understand this problem I'm running into. I create file welcome.rb. The contents of this file: welcome_message = "hi there" I then launch an irb session. And type require 'welcome'. That works fine. Then I type: puts welcome_message I get the error message undefined local variable or method `welcome_message' for main:Obj...
Here's what I've tried: 1. gem install awesome_print 2. echo "require 'ap'" >> ~/.irbrc 3. chmod u+x ~/.irbrc 4. script/console 5. ap { :test => 'value' } Result: NameError: undefined local variable or method `ap' for # ...