As you most likely know validates_uniqness_of :foreign_id does not allow nil values by default.
Use form models to handle this problem Or soften the validation to validates_presence_of :parent
Each time thin boots, it prints a boot message : Thin web server (v1.6.3 codename Protein Powder) Maximum connections set to...
If you hover over the text of a card, you will now see EDIT links at the top right corner...
A word of caution There should rarely be a reason for you to split up config/routes.rb. If you need to...
MarcoPolo shows your app name and environment in your console prompt so you don't accidentally break production Officially supporting...
tig is a command line explorer for Git that is just awesome. Install via apt-get or brew. Handy commands...
Here is how to start your Rails application to accept both HTTP and HTTPS in development. gem install passenger
Free Bootstrap theme resembling Material Design. Bootswatch offers Sass and Less files, so the theme can easily be integrated into...
CTRL + SHIFT + ALT + N Search for any symbol in your application, like CSS classes, Ruby classes, methods, helpers etc...
In tests, it is sometimes useful to create records with specific ids. On PostgreSQL this can cause problems: Usually, PostgreSQL...
To change RAM size, VDISK size or VCPU count of an openstack instance you have to use nova resize. You...
Jasmine comes with two matchers that test for equality. The first is toBe: expect(first).toBe(second) toBe passes when...
The migration DSL now supports adding and removing foreign keys. They are dumped to schema.rb as well. At this time...
When running capybara with Chrome you might start seeing frequent "no alert open" errors when trying to interact with browser...
In Capistrano 2, directories in shared_children used to be symlinked to the shared directory during the finalize_update task...
tl;dr: Use event.currentTarget unless you are absolutely certain that you need event.target. Since it hasn't been written down...
The team is responsible for building great software—that’s it. It’s the only thing the team is responsible...
Your after_commit callbacks will not know about changes, as Rails discards them when committing. The linked article shows a...
iPads will not trigger click events for all elements. You can fix that, but you don't want to know...
This blew my mind today: 12 Little-Known CSS Facts 12 Little-Known CSS Facts (The Sequel) Please make sure...
Very detailed guide to caching Ruby on Rails. Goes well with the official Rails guide on caching.
Running projects parallel makes some trouble with PDF generation. Use geordi rspec spec to force sequential tests for the whole...
If you see a stacktrace beginning with lines like this: E, [2015-07-16T09:23:10.896146 #23308] ERROR -- : app...