If you can now longer hear or record sounds after upgrading Ubuntu, you probably need to re-tell Ubuntu which...
In Rails 2, when calling instance_eval or instance_exec on a scope, the scope will fetch its records from...
A technique to vastly reduce the number of join model records that need to be stored in the database.
Since I use this a lot in my daily work and there were no scripts working properly for me, I...
When you have two models in a has_many, has_one or belongs_to association, the :inverse_of option in...
JavaScript engines such as Google’s V8 (Chrome, Node) are specifically designed for the fast execution of large JavaScript applications...
Icon fonts like Font Awesome are infinitely scalable, look great on high-DPI displays and will give your app a...
Generally, Selenium tests use the browser to interact with the page. If it's unavailable, a timeout error is...
url = 'http://www.foocorp.com/foo/bar' URI.parse(url).host # => www.foocorp.com Note that this will raise an error if the given argument is...
In theory you can take any scope and extend it with additional joins or conditions. We call this chaining scopes...
ActiveModel::Errors is used to handle validation errors on Rails objects. If you inspect an instance, it feels like a...
If you require your Rails models manually, pay attention to the path you use. Unless you have...
If your application has forms to edit string fields, you probably want to strip the entered values (remove whitespace from...
“Fat models” cause maintenance issues in large apps. Only incrementally better than cluttering controllers with domain logic, they usually represent...
Example task: Multiply the table holidays between several stages. Open two terminals: shell-for stage_1 shell-for stage_2...
If this happens to you: user.avatar = Avatar.new user.avatar # => nil (where avatar is a belongs_to), you probably declared your association...
Cucumber_rails' old-school web-steps have been deprecated for a while, urging developers to write high-level step definitions...
There is no reason to leave trailing whitespace characters in your project's files, so don't add any.
TL;DR Avoid before(:context) (formerly before(:all)), use before(:example) (formerly before(:each)) instead. If you do use before...
Today I got a better understanding of how git works, in particular what git checkout and git reset do.
Given you store files on Amazon S3 and you need to stream those files out to people while you don...
StaticMatic is a nice tool to build simple static websites. In case you want to have some nifty styles on...
When you work in the MySQL console and you want to see which database is used, type: SELECT database();
We frequently use the handy Paperclip Gem to manage file attachments. If you need to move the files from local...