What are ruby contracts and how we can use them?
What are Ruby Contracts? The gem author defines them as follows: Contracts which let you clearly and beautifully express how your code behaves, while freeing you from writing tons of boilerplate, defensive code. You can think of contracts...
Searching with Ransack in Ruby on Rails
Sometimes we need or we want to develop a module quickly and easily that includes filters, sorting, pagination and we don’t want to spend so much time on it, that’s why there are already some implemented and tested tools...
Have you ever had difficulties adding authentication to an API which had already set up devise authentication? I encountered the same issue while trying to apply devise_token_auth in my project. In this post, I am going to show you how to solve this problem; presuming that you have already configured an API with CORS. First of all, you need...
Rails 5 meets Webpack and React
Why Webpack? JavaScript applications are getting more complex every day and developers are taking advantage of new versions of the language, new ways of coding are becoming more popular as well, that means lots of modules with dependencies,...
How to upgrade from rails 4.2.9 to rails 5.1 and don’t die trying
Hi there 👋 I’m going to show you how I upgraded Rails app from version 4.2.9 to Rails 5.1. The recommended way of upgrading your Rails application is doing it version by version, for example, in this case, we would...
CanCan: Performance issue regarding usage of roles(has_role?) – Avoid N + 1 queries for abilities
Currently, in our project we use CanCanCan to control permissions/privileges. A common usage of CanCanCan is having multiple user roles, in that way we are able to grant/deny access to users depending on their roles and as a result...
RailsConf 2017 Adventure
Hello, I want to talk to you about my visit to the city of Phoenix Arizona, where I was attending RailsConf 2017. Well, I want to begin by saying that this was my first international conference, I had never attended one of such magnitude...
Fixing Rspec and Cucumber random failures in your Continuous Integration Service
When you have a large test suite chances are that some of the tests fail randomly and when this happens you are not going to want to re-run everything again. So here it is the configuration I always use for Rspec and Cucumber to re-run...
Administrate review
Recently I’ve been playing with Administrate a gem from Thoughtbot, for a new e-commerce project built from scratch. I needed an Admin dashboard to manage users, orders, products, etc.