If you want to update some records with boolean fields in a migration, always remember to set your values with...

A print stylesheet is easy to create. Choose a font suited for paper, hide some elements, done. Unfortunately print stylesheets...

This article describes how to reset MySQL's or MariaDB's root password on your workstation. It's meant for...

Assuming the following sunspot setup of the post class: class Post < ActiveRecord::Base searchable do text :title string :state

Note: Instead of using the method in this card, you probably want to use ActiveType's nested attributes which is...

When committing, you should always check the diff of your changes so you don't include any leftovers or irrelevant/bad...

Sometimes you need to look at the filter chain in specs. You can do it like that on Rails 2...

So your Cucumber feature sometimes dies with this exception: Modal Dialog Present (Selenium::WebDriver::Error::UnhandledAlertError) As a seasoned Selenium...

How delayed jobs can make your after_save callbacks execute before the record is saved.

For string columns, MySQL indexes the left side of a string. That means an index can speed a like query...

You can quickly access views that belong to a controller by using the tiny "page with arrow" icon in the...

Be careful when stubbing out attributes on records that are defined by associations. Nothing is as it seems to be...

So you got this error, even though your Gemfile bundles mysql2: !!! Missing the mysql2 gem. Add it to your Gemfile...

The next version of MySQL will include a built-in memcached daemon. This daemon can quickly get and set key/value...

assignable_values now lets you define a secondary default that is only used if the primary default value is not...

paper_trail is an excellent gem to track record versions and changes. You almost never want to reimplement something like...

The will_paginate gem will show a default of 30 records per page. If you want to test pagination in...

Unless you changed the default, this will be 16 MB: mysql> SHOW VARIABLES WHERE Variable_name="max_allowed_packet"; +--------------------+----------+

Sometimes, you may want to open up a second database connection, to a read slave or another database. When doing...

This will make MySQL log all received queries so you can see for yourself what happens on the database level...

I highly recommend that you make use of RubyMine's feature to pin tabs. When you pin all "important" files...

In Rails 3.1+, instead of defining a separate up and down method you can define a single method change: