The way MySQL's FULLTEXT tokenizer splits text into word tokens might not always be what you need. E.g. it splits a word at period characters.

Since the tokenizer has near-zero configuration options (minimum word length and stopwords list), you n...

Ruby has a set of methods to convert an object to another representation. Most of them come in explicit and implicit flavor.

The way Rational#to_s works on Ruby has changed from Ruby 1.9 on. Here is how to get the old behavior back.

You may want this for things where Rationals are being used, like when subtracting Date objects from one another.

What's happening?...

While it might seem trivial to implement an invoice that sums up items and shows net, gross and vat totals, it actually involves a lot of rules and caveats. It is very easy to create invoices where numbers don't add up and a few cents are missing....

Expiration of Rails sessions

By default Rails sessions expire when the user closes her browser window.

To change this edit your config/initializers/session_store.rb like this:

ActionController::Base.session = ...

Since there are more and more touch-capable devices out there, as a web-developer it becomes more and more important to know how to deal with touch events next to mouse events and how you you can combine both worlds (mouse and touch interaction).
...

Rails includes milliseconds in Time / DateTime objects when rendering them as JSON:

JSON.parse(User.last.to_json)['created_at']
#=> "2001-01-01T00:00:00.000+00:00"

In RSpec you might want to use .to_json instead of .iso8601 t...

This is for those who already own an SSL certificate (e.g. using it in the Apache HTTP Server) and need to feed it to a Tomcat application. The main issue is that you need to convert your OpenSSL certificate for Java to use it in its keystore.

Cr...

This is a checklist I use to work on issues. For this purpose I extracted several cards related to the makandra process and ported them into a check list and ref...

When you want to copy/move from a shared folder (on Windows guests, for example) and it fails with absurd error messages (lots of text or an error about the target being read-only), you are probably running on Guest Additions that no longer match ...