ruby rails - examples for date time helpers

with the time helpers it is amazingly easy to deal with dates and times (add, diff...)

$ rails console
  >> 1.year.from_now
  => Sun, 13 Mar 2011 03:38:55 UTC +00:00
  >> 10.weeks.ago
  => Sat, 02 Jan 2010 03:39:14 UTC +00:00
  >> 1.hour.from_now
  => Sun, 12 Aug 2012 09:52:39 UTC +00:00 
  >> 30.seconds.from_now
  => Sun, 12 Aug 2012 08:54:00 UTC +00:00 
 

ruby rails - set up autotest

http://www.andrewsturges.com/2011/06/installing-autotest-with-rails-31-and.html

+ run: rails g rspec:install (rspec-rails have to be installed)

ruby rails - use haml

http://stackoverflow.com/questions/99211/how-do-i-get-haml-to-work-with-rails

ruby - problems with rvm

if rvm does not set the right ruby version:

http://stackoverflow.com/questions/9056008/installed-ruby-1-9-3-with-rvm-but-command-line-doesnt-show-ruby-v/9056395#9056395

installing gems through proxy

Try one of these:

gem install -p [http://proxy-url] rails  

gem install rails -p [http://user@pass:proxy-url]  

set HTTP_PROXY="http://proxyurl:8080"

start ruby server using different port

script/server -p 9999 -b 0.0.0.0
(b - binding = ip)