We are all wrong. When it comes to talk about opinions this is the way that things work. Everyone has her or his own beliefs shaped by years of experience in the field, frustrating code, books, successes, etc. How can all these backgrounds fall into a one unified theory? They just can’t. You’ve always been told to pick the right tool for the job. But what’s the right tool? You decide it, according to your practical knowledge. »
Almost all the Ruby frameworks for the Model layer mix up business logic with database details. This kind of architecture leads to god classes, slow build times and to a general bad design. These problems are well known to legacy projects’s maintainers. What if we assign these roles to smaller components that are able to collaborate together? Imagine how life changing would be to work just with objects, without worrying how to persist them. »
Moore’s law is over. Modern computation is exploited by running processes on multiple cores. Ruby has always ignored this trend, and the community didn’t put enough attention on this topic. Ruby’s model for concurrency is based on threads. It was typical approach for object oriented languages, designed in the 90s. A thread is sequence of instructions that can be scheduled and executed in the context of a process. Several threads can be running at the same time. »
The missing part of all the Ruby web frameworks is the distinction between views and templates. A view is an object that encapsulates the presentation logic of a page. A template is a file that defines the semantic and visual elements of a page. In order to show a result to an user, a template must be rendered by a view. Keeping things separated, helps to declutter templates and models from presentation logic. »
MRuby is a lightweight Ruby. It was created by Matz with the purpose of having an embeddable version of the language. Even if it just reached the version 1.0, the hype around MRuby wasn’t high. However, there are already projects that are targeting Nginx, Go, iOS, V8, and even Arduino. The direct competitor in this huge market is Lua: a lightweight scripting language. Since the version 2.6.0 Redis introduced scripting capabilities with Lua. »