Ruby On Rails

Tutorials

An open source Ruby framework for voice and text chatbots.

An open source Ruby framework for voice and text chatbots. Stealth is a Ruby based framework for creating voice .

Creating a Simple Slack Bot

Creating a Simple Slack Bot Slack is a great application to keep in contact with friends, coworkers and a community. With bots, its capabilities are endless. In this episode, learn how to create a Slack Bot to interact with.

Check and Update a URL with Ruby

Check and Update a URL with Ruby While checking and updating existing client’s data I needed to update URLs in their database. Very often they had http in it but the side has since moved to https. Other sides moved to totally different URLs and there were even a few which didn’t ...

Using Scenic and SQL views to aggregate data

Using Scenic and SQL views to aggregate data The Ruby on Rails (RoR) community is known to be large and established and takes great benefit one of the largest packages repository, RubyGems, serving 147k packages at the time of writing.

Deploying a Rails 5.2 PostgreSQL app on AWS Elastic Beanstalk

Deploying a Rails 5.2 PostgreSQL app on AWS Elastic Beanstalk It’s official, having used Heroku for all my Rails projects so far spoiled me rotten. After receiving some AWS credits thanks to a pitch competition, I decided to deploy my latest project on Elastic Beanstalk (AWS’ Heroku competitor), and all I ha...

Sandi Metz' Rules For Developers

Sandi Metz' Rules For Developers Here are the rules:Classes can be no longer than one hundred lines of code.Methods can be no longer than five lines of code.Pass no more than four parameters into a method. Hash options are parameters.Controllers can instantiate only one object. T...

Ruby Memoization and Alternatives

Ruby Memoization and Alternatives Memoization is often used when deriving values from other state on our objects. Saving derived state to an instance variable is a form of caching and comes with all the associated gotchas (cache invalidation!).Most of the time, this caching is a f...

Build Rock Solid Ruby On Rails App With BDD

Build Rock Solid Ruby On Rails App With BDD Behavior-driven development is basically evolved from Test-driven development. It differs by written in different languages and it will improve the communication between tech and non-tech teams and shareholders because the test cases written used ...

Protocols in Ruby → Allow Implicit Inheritance

Protocols in Ruby → Allow Implicit Inheritance There are problems with implicitness. Always. Sooner or later you’ll get into very hard to understand and debug an issue, induced by some indirect initialization. Yeah, the warning message about implicit delegation was printed during class loading...

Ruby metaprogramming for beginners → Elixir-like specs

Ruby metaprogramming for beginners → Elixir-like specs Erlang and hence Elixir are dynamically typed languages. They both have extended abilities to type check in compile time using typespecs. Here are an introduction and more detailed documentation.Basically one might declare the specification of the...

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