rbenv is a great tool which enables you to install and pick a ruby version for your application. It is light weight and works by inserting a directory of shims at the front of the PATH Install Homebrew – a great package manager: ruby -e “$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)” Install rbenv – manage different versions on […]
Read more "Install rbenv and ruby"These days it is not necessary to have gem documentation installed locally. This unnecessarily increases installation time. Unless you have specific requirement for locally available documentation, you can skip the installation of rdoc and ri documentation when installing gems. Just add this to your home directory in <home_directory>/.gemrc file gem: –no-document # skip installation of all documentation […]
Read more "Install Gems without ri, rdoc documentation"If for whatever reason you end up with a broken rvm and quick fixes do not seem to fix it, it is better to just remove the entire rvm setup and reinstall it. This is what I did last time to remove my RVM and installed rubies. $ rvm implode Are you SURE you wish […]
Read more "RVM Implode / Uninstall and RVM Install"For making multiple substitutions in a string in one call of gsub, you could do something like this matchers = {‘some_term1’ => ‘string_to_replace_with1’, ‘other_term2’ => ‘string_to_replace_with2’} string = ‘some_term1_other_term2’ string.gsub(/some_term1|other_term2/) { |match| matchers[match] }
Read more "Ruby – Multiple string replacements with gsub"While working on a functionality, I came across a situation where I was required to update the model which had a lot of validations specified. It is possible to update a single attribute and save the record without going through the normal validation procedure using update_attribute but when you need to do it for multiple […]
Read more "Rails update attributes without validations"Forms in rails let you show error messages when you create or update the records. In certain situations, I came across a weird issue where the error messages on the view were being shown in a strange format. I expected to see There were problems with the following fields: Name can’t be blank Instead it […]
Read more "Ruby on Rails – Strange validation errors"Today I will try to put down some basic changes that ActionMailer got with Rails 3. Using a mailer model and a view, ActionMailer allows you to send emails from Rails application. Mailers get inherited from base class of ActionMailer i.e ActionMailer::Base and views reside with controller views. Generating a mailer is simple. $rails g […]
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