You will occasionally need to clean out your database while keeping the schema intact, e.g. when someone inserted data in...
When you click a link or a press a button on a Selenium-controlled browser, the call will return control...
Adds a slide out panel to your Rails application that directs clients to test stories that have been marked as...
When you set both a record's association and that association's foreign key attribute, Rails does not realize you...
So you are comparing two Time objects in an RSpec example, and they are not equal, although they look equal...
RubyGems 1.6.0 has undergone some changes which may cause Rails 2.x applications to break with an error like this...
If you use a form (or form fields) multiple times inside one view, Rails will generate the same id attributes...
Note: For PostgreSQL you should use advisory locks. For MySQL we still recommend the solution in this card.
On 32bit systems, the maximum representable Time is 2038-01-19 03:14:07 in UTC or 2038-01-19...
See our new comprehensive guide for upgrading every Rails 2 version ever.
Note that this sounds good but is not good at all when hooking tasks on cap deploy (see this article...
When you use the send_file method to send a local file to the browser, you can save resources on...
When you try to remove a non-existing index using remove_index, the migration will incorrectly pass without an error...
A check if two date or time ranges A and B overlap needs to cover a lot of cases:
Note: Consider not doing this. Use form models or vanilla methods instead. The :conditions option for Rails associations cannot take...
Sometimes it is useful to define a named scope by implementing a static method with the scope's name on...
Given group size If you would like to split a Ruby array into pairs of two, you can use the...
In case https://www.rubydoc.info/ is to slow or offline, you can also read a gem documentation offline. Start a server...
You cannot use Array#join on an array of strings where some strings are html_safe and others are not...
Update: This trick probably isn't very useful anymore in Ruby 2.x. The Ruby GC has improved a lot...
If you’re testing the behavior of deprecated code in your Ruby project, the warning messages littered throughout your spec...
Git allows you to do a binary search across commits to hunt down the commit that introduced a bug.
If you want to iterate over a Range, but only look at every n-th element, use the step method...
See our new comprehensive guide to upgrading every Rails 2 version ever.