RSpec is a Behaviour-Driven Development tool for Ruby programmers. BDD is an approach to software development that combines Test-Driven Development, Domain Driven Design, and Acceptance Test-Driven Planning. RSpec helps you do the TDD part of that equation, focusing on the documentation and design aspects of TDD. via RSpec.info: Home.
Posts Tagged ‘Ruby/RoR’
`require’: no such file to load — readline (LoadError)
I got the following error when trying to start the ‘rails console’ in a Rails3/Ruby 1.9.2 project: `require’: no such file to load — readline (LoadError) The problem was that readline was not installed properly. To install it, I needed to go into the ruby sources. In my case they were located in the directory [...]
Creation of nested models in Rails3 failed with HashWithIndifferentAccess error
I just tried to create a Rails model which contained nested other models and got an HashWithIndifferentAccess error. I used accepts_nested_attributes_for in the parent model. To solve this problem the solution was to add an attr_accessible :MODELNAME_attributes for the child-model (MODELNAME) into the parent model. E.g. Parent model class ParentModel < ActiveRecord::Base has_one :child_model attr_accessible [...]
Autoload modules in Rails 3
In Rails 3 the modules in lib/ are not loaded automatically. You need to a a one liner to the application.rb: config.autoload_paths += %W(#{config.root}/lib)
uninitialized constant MysqlCompat::MysqlRes
I just had the following problem when trying to start a Ruby on Rails application on a fresh installation of Mac OS X Snow Leopard after I installed the mysql gem via gem install mysql: uninitialized constant MysqlCompat::MysqlRes I searched a bit and found a solution here. It was a problem with a buggy version [...]
xss_terminate – protect your Ruby on Rails code from XSS
Just found this little plugin which is maybe interesting to protect against Cross-site scripting in Ruby on Rails. xss_terminate is a plugin in that makes stripping and sanitizing HTML stupid-simple. Install and forget. And forget about forgetting to h your output, because you won‘t need to anymore. via xssterminate – Project Hosting on Google Code.
Retrieve IP address from host name using Ruby
I just needed to retrieve the IP address for a given host name for a Ruby project. What helped me to achieve this goal was the Socket class. In this example I want to get the IP address for google.com: >> Socket::getaddrinfo(‘google.com’, ‘www’, nil, Socket::SOCK_STREAM)[0][3] => “209.85.129.147″
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