Ruby on Rails Screencast Tutorials - Page 3

Learn how to use the Trix editor for editing wysiwyg content and upload attachments like images using Javascript and Shrine

26m

The State_Machine Gem

Aug 20, 2015

Learn how to use the state_machine gem to keep track of objects in your Rails apps

15m

Improving Query Performance with Database Indexes

May 17, 2016

Learn how to improve the speed of your database queries by adding database indexes to your tables

10m

ActiveRecord Explain

Feb 16, 2017

Learn how to use ActiveRecord Explain to analyze your SQL queries generated by ActiveRecord

13m

Batching Backgrounds Jobs with Sidekiq

Sidekiq Pro or sidekiq-batch lets you run a set of background jobs in parallel and then a callback once they're finished. This is perfect for building more advanced workflows for your background jobs in Rails.

11m

User Avatars with ActiveStorage

Nov 21, 2018

Adding user avatars is pretty easy using Rails' ActiveStorage feature. We'll be using Devise in this example, but this applies to any user authentication system.

Link To Current Page With Params

Nov 08, 2018

Learn how to link to the current page and add, remove, or modify params in the URL. This is handy for things like search or index pages with filters.

How to use Bootstrap with Webpack & Rails

Apr 30, 2019

Rails's webpacker gem makes it super easy to load both Bootstrap's CSS and JS into your Rails app using webpack

27m

Select Or Create Field With Selectize.js

Mar 21, 2017

Select a record or create a new one for an association in a form using the Selectize.js library

20m

Tracking Metrics with Ahoy and Blazer

Jul 03, 2017

Tracking business metrics can be time consuming and costly but the Ahoy gem lets you easily track metrics and Blazer makes it incredibly easy to analyze your data

19m

Dynamic Select Fields in Rails with Hotwire

Aug 02, 2021

Need to dynamically update fields when a user changes a select box? We can do that easily in Rails using Hotwire's Turbo Stream actions.

13m

Drag and Drop sortable lists with Rails & Stimulus JS

Apr 28, 2020

Drag and drop sortable lists in Rails aren't too hard using Sortablejs and Stimulus to make wire them up to our backend with acts_as_list

19m

Refactoring Controller Methods

Jan 15, 2015

Learn how to refactor a complex controller with a bunch of methods into a much cleaner set of code

18m

GoRails Performance - The Techniques I Use

Apr 11, 2016

Learn how I design GoRails for speed and performance on all layers of the stack

10m

Symbols vs Strings

Feb 14, 2019

Ever wondered what the difference between Symbols and Strings were? Why would we use one over the other when most languages only have strings?

26m

In-App Messages Between Users

Feb 17, 2016

Learn how to send messages between users with the Mailboxer gem

21m

Rails Counter Caches

Feb 06, 2017

Learn how to use counter caches in your Rails app

17m

Memoization

Mar 30, 2016

Use memoization to your advantage to cache results in memory to improve speed

24m

Consuming an API Using HTTParty and Creating a Gem

Sep 08, 2014

Learn how to use HTTParty to consume an API and package your library into a gem

24m

Sign In With Twitter using Omniauth and the Twitter gem

Nov 20, 2014

Learn how to use Omniauth And omniauth-twitter to let your users authorize and connect to the Twitter API using their Twitter account with your Rails app

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Using the Trix Editor plus File Upload Attachments

Oct 03, 2017