Aliasing Attributes in Ruby on Rails
Alias an attribute with alias_attribute method.
The first argument is the name for the new attribute, while the second argument is to identify the attribute that is already defined.
class User < ActiveRecord::Base
alias_attribute :username, :login
...
Written by Sean Behan on 06/17/2012
Postfix, ActionMailer and OpenSSL Fix on Ubuntu
If you run into problems using ActionMailer > 2.2, Postfix and OpenSSL while sending mail from your application, try changing the following:
vim /etc/postfix/main.cf
Change
smtpd_use_tls=yes
to
smtpd_use_tls=no
OpenSSL support with Postfix does ...
Written by Sean Behan on 06/17/2012
Render Partial if File Exists
If you ever want to render a partial but don't want an error thrown you can either check for the existence of the file first
params[:controller]+"/sidebar" if File.exists?(RAILS_ROOT+"/app/views/"+params[:controller]+"/_sidebar.html.erb") %>
or you ca...
Written by Sean Behan on 06/17/2012
Git Untrack Already Tracked Files
To remove files that are currently being tracked by git, you have to remove them from the "cache". Note, doing this will NOT delete the file on your local machine. It will still be there but not be tracked.
git rm -r --cached supersecretpasswords.txt
Yo...
Written by Sean Behan on 06/17/2012
Parse for Links with Prototype JS
Parsing for links with the Prototype javascript library is easy. Here is the pattern for finding links
/(http|https):\/\/[\w\-_]+(\.[\w\-_]+)+([\w\-\.,@?^
=%&:/~\+#]*[\w\-\@?^=%&/~\+#])?/
And to implement it you can loop through your con...
Written by Sean Behan on 06/17/2012
