A nice bookmarklet to analyze how many watchers have been registered on the current page. Good for keeping an eye...
Creating records in specs can be so fast that two records created instantly after one another might have the same...
Returning an empty scope can come in handy, e.g. as a default object. In Rails 4 you can achieve this...
We upgraded a Rails 2 application to Rails 3.2 and Ruby 2.1, changed the mysql adapter from mysql to mysql2...
p ActiveRecord::Base.connection.indexes(:table_name)
This may be hard to find in the docs, but if you want CoffeeScript classes that instantiate their properties from...
Modern browsers natively suppport file pickers that allow the user to choose multiple files at once. To activate this feature...
class Document < ActiveRecord::Base scope :any_tags, -> (tags){ where('tags && ARRAY[?]', tags) } scope :all_tags, -> (tags){ where('tags @> ARRAY...
tl;dr: Use with_index ActiveRecord's find_each with index If you do not provide a block to find...
Have you tried the Search everywhere dialog? You can open it by pressing Shift twice.
A different take on what we're doing with ActiveType. Since it lives under the rails organization it might be...
Nice tutorial about packaging Ruby bindings to your API in a Ruby gem, with tests using VCR casettes.
In Thunderbird, you can set custom font faces and sizes for reading plain-text e-mails. However, Thunderbird sometimes "randomly...
You need to copy an entire website? Use wget like this: wget -kr http://host.tld/ This will fetch all content...
If you're using the :header_html option in PDFKit (or the corresponding --header-html option in wkhtmltopdf), and the...
To avoid n+1 queries, you want to eager-load associated records if you know you need to access them...
Cookies without an expiration timestamp are called "session cookies". [1] They should only be kept until the end of the...
So you want to organize your I18n using multiple .yml files but your Rails 4.1 application simply won't use...
Great introduction to React.js and the ideas behind it.
There are different ways to run rake: On Rails 4.1+ projects, you have Spring and its binstubs which dramatically improve...
Capybara and most assistive technology will fail to find tags that are missing an href attribute. This will probably happen...
When your system is not running on English, you may sometimes want to run some applications and not use your...
In Rails, you can very easily send emails with HTML and plaintext bodies. However, if you're trying to debug...
Use reorder to replace an existing order clause with a new expression.