Ruby On Rails

Tutorials

Multi-Tenant Architecture

Multi-Tenant Architecture Multi-tenant architecture allows one instance of an application to serve multiple customers/organizations. Each customer/organization is called a tenant. Each has its own apparent separate application and is not aware of the other tenants. The t...

Fibers are the Right Solution

Fibers are the Right Solution The majority of performance improvements in modern processors are due to increased core count rather than increased instruction execution frequency. To maximise hardware utilization, applications need to use multiple processes and threads. Servers...

Local SSL for Rails 5 development and tests

Local SSL for Rails 5 development and tests Is your Rails app on SSL in production? It may be a good idea to use SSL locally too. It's just that it's typically been a pain to set up. Using SSL for Rails acceptance tests with Capybara has.

Avoiding Network Calls In Rails Tests Without Using Mocks, Stubs or VCR - Code with Jason

Avoiding Network Calls In Rails Tests Without Using Mocks, Stubs or VCR - Code with Jason An important principle of testing is that tests should be deterministic. The passing or failing of a test shouldn’t depend on the date it was run, whether any certain other tests ran before it, or whether some condition outside the application cha...

Hash Rockets are good actually

Hash Rockets are good actually I've been asked a few times recently why I prefer Ruby's hash rockets to the "new" or "1.9" hash syntax. I figured I'd document it for posterity. I'm aware this is like an extremely unpopular take. This is my opinion, I hope you give it the time t...

Cross-language Performance Profile Exploration with speedscope speedscope is a fast, interactive, web-based viewer for large performance profiles, inspired by the performance panel of Chrome developer tools and by Brendan Gregg’s FlameGraphs. Jamie Wong built speedscope to.

Synchronises Assets between Rails and S3

Synchronises Assets between Rails and S3 Synchronises Assets between Rails and S3.Asset Sync is built to run with the new Rails Asset Pipeline feature introduced in Rails 3.1. After you run bundle exec rake assets:precompile your assets will be synchronised to your S3 bucket, optionally ...

Coverband 3 find dead code, find hotspots

Coverband 3 find dead code, find hotspots Coverband 3 Coverband gives deep insight into the production usage of every line of code in your Ruby app. Find dead code, find hotspots, see code paths that might be unexpectedly in high usage. This release marks deep dives into Ruby performance,...

Migrating from Paperclip to ActiveStorage

Migrating from Paperclip to ActiveStorage First of all, I’m no expert in programming. In fact, I started with Ruby on Rails about one and a half month ago with the beginning of my internship at Codeminer 42. So that's me, an intern trying.

How to test Ruby output and logs using RSpec with StringIO

How to test Ruby output and logs using RSpec with StringIO Testing what is logged when you application is run can be done with testing method calls to your logger. However, using StringIO to capture and examine its output can provide several advantages, such as being able to record output and perform test...

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