Ruby On Rails

Tutorials

User notifications with Rails, Noticed, and Hotwire

User notifications with Rails, Noticed, and Hotwire A nearly-universal need in web applications is user notifications. An event happens in the application that the user cares about, and you inform the user of the event. A common example is in applications that have a commenting system — when a user...

Ruby on Rails 68 Frames: Infinite Scroll Pagination - YouTube

Ruby on Rails 68 Frames: Infinite Scroll Pagination - YouTube In this previous episode we added a button to "Load more" records at the bottom of the list, with the help of Hotwire Turbo Streams.Episode Source Code: https://github.com/corsego/68-frames-...In the previous episode we automatically added more re...

Pipelining without pipes

Pipelining without pipes GitHub has a library to syntax highlight code snippets called Linguist. It has an extensive list of languages and their characteristics (e.g., name, file extensions, color, etc.). I had some free time, so I came up with this silly question: what w...

Know what your scopes are doing: where.first vs find_by - Andy Croll

Know what your scopes are doing: where.first vs find_by - Andy Croll There are numerous benefits to using an Object-Relational Mapper (ORM), such as Active Record, to generate your SQL. You gain from clear repeatable abstractions, saving time and improving readability.Unfortunately the very abstractions that make a...

Don't Run Ruby Minitest Classes Twice!

Don't Run Ruby Minitest Classes Twice! Minitest is a very popular testing framework for Ruby applications. It provides a complete suite of testing facilities supporting TDD, BDD, mocking, and benchmarking. Minitest is the Ruby test standard library included in the Ruby 1.9 version.Mini...

SQL transactions in Rails - level up with Ruby 4

SQL transactions in Rails - level up with Ruby 4 SQL transactions are the foundation of the ActiveRecord, and even if you don’t use them directly, they are used each time you save record in the database. Level up your Ruby by knowing the most important things about.

Dockerizing System Tests With Selenium

Dockerizing System Tests With Selenium We are spinning up a new application for some end users to enter data, so we need to build a robust testing system. Unit tests are a must, but those only test to ensure that all the classes, methods, and functions do what we expect. On top of that...

Mocking JavaScript Requests During Tests

Mocking JavaScript Requests During Tests When we run tests, we don’t want to hit external services in most cases, so our tests don’t depend on external services and are more stable. We can use gems like VCR or WebMock to stub the requests that are done by the Rails application, but when ...

Rails 7 allows permitting numeric params | Saeloun Blog

Rails 7 allows permitting numeric params | Saeloun Blog In Rails, strong params provide an interface for protecting attributes from the end-user assignment. We can specify required attributes and neglect unnecessary attributes to be used in the Active model mass assignment. However, in Rails 6, there w...

How we automatically fixed thousands of Ruby 2.7 deprecation warnings | GitLab

How we automatically fixed thousands of Ruby 2.7 deprecation warnings | GitLab To address this warning, the obvious, and boring solution was to simply add ** to the last keyword argument. For the most part, this is what we did. However, while this was under way, we also developed a RuboCop check that could detect, and automa...

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