What’s this all about?Feed

One Rails app recently generated loads of exceptions with “Security warning: an embedded <script> tag on another site requested protected JavaScript.” Once we understood the cause, it was easy to fix.

August 22, 2018 00:00 – #Ruby, #Rails, #How-To

The Raspberry Pi powering our status screen is also connected to our doorbell, and it should play a sound each time someone rings the bell. How does this work from the command-line and over an external USB audio interface?

December 14, 2017 00:00 – #How-To, #Raspberry Pi

Our status screen is powered by a RaspberryPi running a web browser full screen. This is called “kiosk mode”, and it can be a bit tricky to setup. Here’s how we do it.

December 06, 2017 00:00 – #How-To, #Raspberry Pi, #Status Screen

Content Security Policy (CSP) not only makes websites safer, it also gives some insight into the world of browser adware and malware.

March 24, 2017 00:00 – #Web, #Security, #CSP

When we recently decided to stop using Flowdock, we wanted to create a useful static archive of the content in our Flows. Turns out, a simple Ruby script is all it takes.

March 13, 2017 00:00 – #Flowdock, #How-To

Transferring a small Rails application to a new server is no big deal. However, you have to be careful to not overlook anything. Here’s a checklist.

February 22, 2017 00:00 – #Rails, #Operations, #How-To

Sometimes you have a form backed by a simple ActiveModel model with no persistence. But what if you want to use uploads in such a form, with validations and working across form redisplays?

September 28, 2016 00:00 – #Ruby, #Rails, #How-To

You are maintaining a long-lived fork and find it increasingly hard to keep track of the exact changes that have been made to the fork? Use advanced Git features to make your life easier.

August 05, 2016 00:00 – #Git, #How-To

Why code that behaves differently from what it looks like at first glance is particularly nasty during upgrades. Bonus: A look at option hashes vs. keyword arguments in Ruby.

July 28, 2016 00:00 – #Ruby, #Rails, #Code Philosophy

How we try to prepare the code we’re writing now for the errors we’re likely to make in some not-so-distant future.

July 19, 2016 00:00 – #Ruby, #Code Philosophy

How me made a Rails application use different SMTP credentials based on runtime context.

July 13, 2016 00:00 – #Rails, #Ruby, #How-To