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I have problems on a simple design problem. I have many companies. Each company have one or more commercial activity. Activities types are: ecommerce, local unit, television, automatic vending machines, and so on. Company may have one or more ecommerce activity or one or more local unit activity, one ormore vending machines, etc. How can I model this scenario? Company has_many ecommerce has_many

Hello. There is someone interested to a collaboration in developing a project to manage commercial activities? The target is to learn more on grails and develop an useful application. -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To unsubscribe from this group and stop receiving emails from it, send an email to

Hi everybody, I''m starting a new 3.2 project and i need to know the best hosting offers THanks for your help -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To view this discussion on the web visit https://groups.google.com/d/msg/rubyonrails-talk/-/eCOQw_HiChwJ. To post to this group, send email to

I''m going through DHH''s Agile Web Development with Rails for Rails 3.1. In chapter 14 they create a Users sign-in model/view/controller using the has_secure_password method. My user.rb file looks like this class User < ActiveRecord::Base attr_accessible :name, :password_digest, :password, :password_confirmation validates :name, presence: true, uniqueness:

I am learning Rails 3 and need some help on Ajax part. I am trying to accomplish the following: There is a textarea on the page which has a length of letters constraint, say 100. Every time a symbol is typed there,a nearby label tells you how many letters you have left. I plan to use Ajax to do this. I googled for a few hours and could not figure out how to do this. So far what I have done is

hi everyone i just typed ruby script/server -d and then after when i type again it is not working. i got this error [2012-02-09 16:19:54] WARN TCPServer Error: Address already in use - bind(2) Exiting /usr/lib/ruby/1.8/webrick/utils.rb:73:in `initialize'': Address already in use - bind(2) (Errno::EADDRINUSE) from /usr/lib/ruby/1.8/webrick/utils.rb:73:in `new'' from