Rails 2.1 is making my life easier.
I realized today it’s been nearly a month since I’ve posted an update to this blog. I blame my current projects and the additional time I’ve spent on professional development this past month.
I’ve taken quite a bit of time over the past month to pick apart and play around with the new features in Rails 2.1. I won’t go into detail about every new feature, you can read all the juicy details here.
I do want to quickly mention a very nice new feature in ActiveRecord 2.1, the ability to read if a record or a specific attribute in a record has changed. This make validation loops easier to write and minimizes round trips to your database if the application is engineered and tested accordingly. Take a look at the example below and checkout http://www.rubyonrails.org for more details on the 2.1 update.
article = Article.find(:first)
article.changed? #=> false
# Track changes to individual attributes with
# attr_name_changed? accessor
article.title #=> "Title"
article.title = "New Title"
article.title_changed? #=> true
# Access previous value with attr_name_was accessor
article.title_was #=> "Title"
# See both previous and current value with attr_name_change accessor
article.title_change #=> ["Title", "New Title"]
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Tags: activerecord, rails, ruby