Ruby On Rails

Tutorials

Web applications on Phusion Passenger are not vulnerable to HTTPoxy

Web applications on Phusion Passenger are not vulnerable to HTTPoxy Phusion Passenger is not vulnerable to HTTPoxy and Ruby applications in general are not either. In this article we will give a short description of the problem, explain why applications hosted by Passenger are not vulnerable.

Ruby - Specification Pattern

Ruby - Specification Pattern The specification pattern is a particular software design pattern, whereby business rules can be recombined by chaining the business rules together using boolean logic.

Serverspec - Home

Serverspec - Home Serverspec tests your servers’ actual state by executing command locally, via SSH, via WinRM, via Docker API and so on. So you don’t need to install any agent softwares on your servers and can use any configuration management tools, Puppet, Ansibl...

The New ‘Absent Operator’ in Ruby’s Regular Expressions

The New ‘Absent Operator’ in Ruby’s Regular Expressions Ruby 2.4.1 was released this week and included an upgrade to its underlying regular expression engine, Onigmo. The headline feature in this update was support for ‘the absent operator’ but what is this and what is it for?

Oi Amigo: Ruby tutorial session 20

Oi Amigo: Ruby tutorial session 20 Open Class Definitions and Method AliasingIn this post we are going to learn how to open existing class definition and alias the method which is exist already in the class.

Don’t use the constructor before initialize is defined

Don’t use the constructor before initialize is defined Problem If for some reason, most likely convenience, you want to have a constant containing an instance of an object in your class you have to pay attention to where you define this constant. An example might be that instead of City.new(10, 5) you...

Config: Behavior versus Credentials

Config: Behavior versus Credentials An application doesn’t have one type of configuration, it has two. In Rails, it’s confusing since we muddle these two together under a giant switch statement powered by RAILS_ENV. Let’s start with some definitions.

Dockerize an Existing Ruby on Rails Application

Dockerize an Existing Ruby on Rails Application Using docker, we can build and package an application or service with all the dependencies into single unit. Such a unit is called the “Docker Image”. It contains the entire source code of the application, runtime libraries and dependency software...

Send free SMS messages in a Ruby app using email-to-sms gateways provided by cell carriers.

Send free SMS messages in a Ruby app using email-to-sms gateways provided by cell carriers. sms-easy - Allows you to send free SMS messages in a Ruby app using email-to-sms gateways provided by cell carriers.

Send an SMS Message with Ruby in 30 Seconds

Send an SMS Message with Ruby in 30 Seconds You’re building a Rails app and you need to send SMS messages. “This could take some time,” you think. Not so! Here’s a video showing how quick it is to get started with Twilio in Ruby:

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