ActiveRecord Episodes - Ruby on Rails Screencast Tutorials

Querying Named Scopes Across Models with ActiveRecord::Relation#merge

Jul 03, 2014

Use the merge method to prevent duplication of ActiveRecord scopes when you're querying across different models

22m

Pretty urls with FriendlyID

Jul 07, 2014

Techniques for taking your database models and using attributes to generate pretty urls

Pagination with will_paginate

Jul 07, 2014

A look into how pagination works from scratch and how to use will_paginate

Keeping track with Annotate

Jul 07, 2014

Learn how to keep track of your database models and attributes with comments in your application

24m

Liking Posts

Sep 15, 2014 Pro

Add liking or favoriting to your app like Facebook or Twitter

16m

Forum Series Part 1: Architecture

Sep 24, 2014

The first part of the Forum series, we talk about how the database and structure of the forum is designed

Forum Series Part 3: Nested Attributes and fields_for

Oct 09, 2014

Learn how to use accepts_nested_attributes_for and fields_for to create forms that include associated models in them

23m

Comments With Polymorphic Associations

Dec 19, 2014

Learn how to set up polymorphic associations, add comments to your app, and think about the structure of your Rails application

16m

Soft Delete with Paranoia

Feb 05, 2015

Learn how to soft delete records instead of deleting them permanently from your database

18m

ActiveSupport Concerns: Making a Soft Deletable module

Feb 12, 2015 Pro

An introduction to Ruby on Rails ActiveSupport concerns where we build a Soft Deletable module like the Paranoia gem

11m

Debugging Performance Problems In Your Views

May 04, 2015 Pro

Learn how I discovered and solved a performance bug in OneMonth.com's view partial

1h 3m

Pair Programming on Rails Scopes

Jul 06, 2015

James from Shakycode and I pair program on some common model scopes related to time and how we would approach them

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

33m

Scheduling Posts

Aug 26, 2015 Pro

Learn how to schedule posts in draft, published, and scheduled modes

31m

Virtual Attributes And Attribute API

Dec 30, 2015

Learn how you can use virtual attributes to make forms cleaner and how the Rails 5 attribute API can save you a bunch of time

22m

Message Templates

Jun 07, 2016

Learn how to use a template model to populate forms and other objects with

15m

Atomic Updates And Performance with ActiveRecord Transactions

Feb 06, 2017 Pro

Learn how to use ActiveRecord Transactions to create atomic updates across multiple records and to improve the speed of bulk operations

10m

ActiveRecord Explain

Feb 16, 2017

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

16m

Preferences & Settings with ActiveRecord::Store

May 31, 2017 Pro

Use ActiveRecord::Store and ActiveRecord-TypedStore to save user preferences and settings to a single column in the database

18m

Charts with Chartkick and Groupdate

Jun 19, 2017

Add various types of charts to your Rails app with Chartkick and use Groupdate to make easy group queries in SQL

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