Devchat.tv Episode Roundup
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Episodes
Create a ‘Like’ or ‘+1′ button with make_flaggable
July 15, 2011 01:32 - 44 MB VideoWith the recent release of the Google Plus beta (ask me for an invite if you want one), I felt it appropriate to show a simple way to create a Like or +1 button for your Rails application. The app and concept is pretty simple, so I won't worry about posting the code below. Install: gem 'make_flaggable', :git => 'git://github.com/cavneb/make_flaggable.git' bundle install rails generate make_flaggable rake db:migrate Models: class Article < ActiveRecord::Base make_flaggable :like end class ...
Create a ‘Like’ or ‘+1′ button with make_flaggable
July 15, 2011 01:32 - 44 MB VideoWith the recent release of the Google Plus beta (ask me for an invite if you want one), I felt it appropriate to show a simple way to create a Like or +1 button for your Rails application. The app and concept is pretty simple, so I won't worry about posting the code below. Install: gem 'make_flaggable', :git => 'git://github.com/cavneb/make_flaggable.git' bundle install rails generate make_flaggable rake db:migrate Models: class Article < ActiveRecord::Base make_flaggable :like end class ...
010 RR Personal Design Rules
July 08, 2011 16:28 - 59 minutes - 82.3 MBThe panelists discuss personal design rules.
The DRY Principle
July 08, 2011 14:36 - 7 minutes - 10.6 MBAccording to The Pragmatic Programmer by Andy Hunt and Dave Thomas, "Every piece of knowledge must have a single, unambiguous, authoritative representation within a system." Last week I talked about extending your Ruby on Rails application. This is because in many cases in order to avoid repeating your logic across multiple classes (models or controllers) you need another place to put your functionality. Mix-in modules, plugins, and single table inheritance all allow you to codify your knowl...
Pivotal Labs’ Javascript Setup
July 08, 2011 14:32 - 15 minutes - 21.9 MBOne of my clients had Pivotal Labs build them a website. After Pivotal Labs finished the project, they helped them find a developer to maintain it for them. I took over from him. This last week, I had to dig deeply into the javascript code to make a piece of functionality I was modifying conform to what they had in other places on the site. What happened during the two days I worked on it was that I learned how they had things set up. Here are some of the things I found. Jelly Jelly provi...
Building a Star-Rating System in Ruby on Rails with jQuery
July 05, 2011 19:37 - 123 MB VideoSpecification Clicking a star rating turns on the stars to the left of the star I clicked. Clicking a star submits the star rating. When I refresh the page, the star ratings should be persistent. We’ll be using Rails’ functions including: form_for hidden_field Rails Helpers We’ll be using jQuery functions including: click each ajax <% form_id = "movie_#{movie.id}_rating" %> <%= form_for movie.ratings.last || movie.ratings.build, :html => {:id => form_id , :class => "star_rating...
Building a Star-Rating System in Ruby on Rails with jQuery
July 05, 2011 19:37 - 192 MB VideoSpecification Clicking a star rating turns on the stars to the left of the star I clicked. Clicking a star submits the star rating. When I refresh the page, the star ratings should be persistent. We’ll be using Rails’ functions including: form_for hidden_field Rails Helpers We’ll be using jQuery functions including: click each ajax <% form_id = "movie_#{movie.id}_rating" %> <%= form_for movie.ratings.last || movie.ratings.build, :html => {:id => form_id , :class => "star_rating...
Building a Star-Rating System in Ruby on Rails with jQuery
July 05, 2011 19:37 - 192 MB VideoSpecification Clicking a star rating turns on the stars to the left of the star I clicked. Clicking a star submits the star rating. When I refresh the page, the star ratings should be persistent. We’ll be using Rails’ functions including: form_for hidden_field Rails Helpers We’ll be using jQuery functions including: click each ajax <% form_id = "movie_#{movie.id}_rating" %> <%= form_for movie.ratings.last || movie.ratings.build, :html => {:id => form_id , :class => "star_rating...
009 RR What Makes Beautiful Code
July 05, 2011 17:09 - 1 hour - 91.4 MBThe Rogues talk to Josh Susser about what makes beautiful code.
Freelancing Advice – Teach Me To Code Podcast
July 01, 2011 16:07 - 20 minutes - 28.5 MBI’ve had two people ask me about freelancing within 1 day of each other. So, I’m going to give some advice. I also talked about finding freelance clients a few weeks ago in this episode. Talk to other freelancers to see if they know people looking for work. It’s a great way to get advice as well as referrals. Start talking to people in the community. I found all of my original clients directly or indirectly by talking to people I knew both locally and in the international community. You s...
Extending Ruby on Rails
July 01, 2011 16:02 - 9 minutes - 13.6 MBI’m going to be talking about the DRY principle next week. However, before I jump into that, I need to discuss how to extend Ruby on Rails so you know where you can put functionality to keep your application DRY. There are a couple of standard places people put code that isn’t a Model, View, Controller, or Helper: The ‘lib’ folder - This is sort of a “junk drawer” for your application. In Rails 3 your application does not load these files on its own. You can make it autoload by following t...
Capistrano: Deploying Ruby on Rails Applications to Multiple Servers
June 24, 2011 18:51 - 35.1 MB VideoFor a basic deployment recipe, check out Basic Deployment with Capistrano This episode demonstrates how to extend deployment to deploy to stage and production. Overall it’s rather simple. All it entails is creating a new task for each stage you want to deploy to with the settings you need changed. Here’s an example: task :stage do role :web, "stage.teachmetocodeacademy.com" # Your HTTP server, Apache/etc role :app, "stage.teachmetocodeacademy.com" ...
Capistrano: Deploying Ruby on Rails Applications to Multiple Servers
June 24, 2011 18:51 - 35.1 MB VideoFor a basic deployment recipe, check out Basic Deployment with Capistrano This episode demonstrates how to extend deployment to deploy to stage and production. Overall it’s rather simple. All it entails is creating a new task for each stage you want to deploy to with the settings you need changed. Here’s an example: task :stage do role :web, "stage.teachmetocodeacademy.com" # Your HTTP server, Apache/etc role :app, "stage.teachmetocodeacademy.com" ...
Capistrano: Deploying Ruby on Rails Applications to Multiple Servers
June 24, 2011 18:51 - 35.1 MB VideoFor a basic deployment recipe, check out Basic Deployment with Capistrano This episode demonstrates how to extend deployment to deploy to stage and production. Overall it’s rather simple. All it entails is creating a new task for each stage you want to deploy to with the settings you need changed. Here’s an example: task :stage do role :web, "stage.teachmetocodeacademy.com" # Your HTTP server, Apache/etc role :app, "stage.teachmetocodeacademy.com" ...
008 RR Where is Rails Headed?
June 24, 2011 03:04 - 57 minutes - 78.9 MBThe panelists ponder where Rails is headed.
Gregory Brown Interview – Teach Me To Code Podcast
June 24, 2011 00:12 - 55 minutes - 76.7 MBGregory Brown is a longtime member of the Ruby community. His contributions to the community include his recent involvement in the RubyGems discussions, Ruby Best Practices, the Prawn library, and Ruby Mendicant University. Ruby Mendicant University is a free online school for software developers. It’s a blended teaching and mentoring program that helps people improve their coding skills. It’s aimed toward intermediate level programmers. The “RubyGems uprising” is something that Greg stepp...
Rails’ Component Libraries
June 24, 2011 00:02 - 9 minutes - 13.6 MBRails is made up of several components that all have specific jobs in making your Rails application work. Here’s a quick list of what they are and what they do. ActionMailer - The basis for mailers. This is the library that allows you to format and send emails from your rails application ActionPack - The components that parse, delegate, and render responses for requests. ActionDispatch - Parses HTTP requests and sends the requests to controllers. ActionController - Basis for Control...
Ryan Smith Interview – Teach Me To Code Podcast
June 17, 2011 18:08 - 44 minutes - 61.3 MBRyan Smith is an engineer at Heroku.com. He wrote the queue_classic library in Ruby. He was a speaker at RailsConf talking about the Worker Pattern. He blogs at http://ryandotsmith.heroku.com/ and tweets at http://twitter.com/ryandotsmith We talked about several things, including: Heroku (the company and the service) Salesforce's acquisition of Heroku queue classic postgresql the Worker Pattern He also mentioned these things in relation to the topics we discussed. h-store mvcc post...
Debugging
June 17, 2011 01:57 - 8 minutes - 9.57 MBWe talked quite a bit today about debugging tools in the Ruby Rogues podcast. I recorded this before that episode. Here's a brief introduction on how to use debuggers to find problems in your Rails code. The basic idea is that your set a breakpoint in your application, which causes the application to stop processing and allow you to access the application's state and step through the methods being called in order to find the cause of your problem. With the Ruby Debug library, all you need t...
007 RR Debugging in Ruby
June 17, 2011 01:11 - 1 hour - 70.4 MBThe Rogues discuss debugging in Ruby.
006 RR Conferences and User Groups
June 15, 2011 21:55 - 1 hour - 91.8 MBThis week the rogues discuss the importance of conferences and user groups to the Ruby community.
Polymorphism with Many-to-Many Associations – A Teach Me To Code Tutorial
June 03, 2011 20:32 - 20 minutes - 43.4 MB VideoPolymorphic associations are very simple, as are many-to-many associations. When you blend the two, it's not nearly as simple. Since there isn't a working build-in mechanism for many-to-many polymorphic associations. Here's a quick demo of what happens if you try to set up a traditional has_many :through association with a polymorphic association. I also show how to set things up so you can get the associated objects. Download 101.3 MB Download (iPod & iPhone) 45.5 MB
Polymorphism with Many-to-Many Associations – A Teach Me To Code Tutorial
June 03, 2011 20:32 - 20 minutes - 96.6 MB VideoPolymorphic associations are very simple, as are many-to-many associations. When you blend the two, it's not nearly as simple. Since there isn't a working build-in mechanism for many-to-many polymorphic associations. Here's a quick demo of what happens if you try to set up a traditional has_many :through association with a polymorphic association. I also show how to set things up so you can get the associated objects. Download 101.3 MB Download (iPod & iPhone) 45.5 MB
Polymorphism with Many-to-Many Associations – A Teach Me To Code Tutorial
June 03, 2011 20:32 - 20 minutes - 96.6 MB VideoPolymorphic associations are very simple, as are many-to-many associations. When you blend the two, it's not nearly as simple. Since there isn't a working build-in mechanism for many-to-many polymorphic associations. Here's a quick demo of what happens if you try to set up a traditional has_many :through association with a polymorphic association. I also show how to set things up so you can get the associated objects. Download 101.3 MB Download (iPod & iPhone) 45.5 MB
Gary Bernhardt Interview – Teach Me To Code Podcast
June 03, 2011 15:03 - 41 minutes - 56.4 MBGary is well known for a few things including destroyallsoftware.com, Ruby vs. Python: A battle to the death, and his discussions on tools, process, and programming practices. We had a great discussion regarding learning to use your text editor, learning tools like git, and overall ways to improve your skill and efficiency when programming.
Convention over Configuration
June 03, 2011 14:42 - 9 minutes - 13.2 MBThe idea behind convention over configuration is that rather than having several or one large configuration file to set up the framework for you to use, Rails uses conventions to determine how things should work without configuration. In many cases in Rails, there are ways to override the default convention, but most people stick to the conventions. The conventions make it easy to set up and get started with Ruby on Rails. They also make it extremely easy for a person unfamiliar with your Ra...
005 RR RubyGems, Open Source, and Community
June 03, 2011 05:58 - 1 hour - 84.9 MBThis week we really dug into the issues surrounding RubyGems and why people are worried about it. Gregory Brown (RMU) really helped us unravel some of the issues people are having. If you want to know what the issues are in this dog fight, this is a good place to find out.
Many to Many Associations in Ruby on Rails – A Teach Me To Code Tutorial
May 27, 2011 06:43 - 93.1 MB VideoI had several requests in UserVoice to provide a Many to Many tutorial in Rails. This is a demonstration of how to put together a "has and belongs to many" association and a "has many through" association. This is somewhat basic to Ruby on Rails, but important if you need to associate different models. Download 161.3 MB Download iPhone & iPod 97.7 MB
Many to Many Associations in Ruby on Rails – A Teach Me To Code Tutorial
May 27, 2011 06:43 - 154 MB VideoI had several requests in UserVoice to provide a Many to Many tutorial in Rails. This is a demonstration of how to put together a "has and belongs to many" association and a "has many through" association. This is somewhat basic to Ruby on Rails, but important if you need to associate different models. Download 161.3 MB Download iPhone & iPod 97.7 MB
Many to Many Associations in Ruby on Rails – A Teach Me To Code Tutorial
May 27, 2011 06:43 - 154 MB VideoI had several requests in UserVoice to provide a Many to Many tutorial in Rails. This is a demonstration of how to put together a "has and belongs to many" association and a "has many through" association. This is somewhat basic to Ruby on Rails, but important if you need to associate different models. Download 161.3 MB Download iPhone & iPod 97.7 MB
Ruby on Rails Routing
May 27, 2011 05:47 - 11 minutes - 15.8 MBRuby on Rails routing can be a little confusing. Here are some of the high points. The root path is specified by the 'root' method. It matches the '/' path and behaves like 'match'. The 'match' method will match the requested path to the string passed to match and route to the controller and action specified. # Sends requests to /users/list to PeopleController#index match "users/list", :to => "people#index" You can also extract variables from the path. # Matches /user/1/edit and passes ...
004 RR Databases, SQL, & NoSQL
May 27, 2011 00:22 - 56 minutes - 77.8 MBThe Rogues discuss databases, SQL, & NoSQL.
Know Your Text Editor – Teach Me to Code Podcast
May 26, 2011 23:30 - 15 minutes - 22 MBOver the last few weeks I've been using macvim and janus to write code. The more I learn about VIM, the more I love it. It's not so much that VIM does things that I find particularly natural or “better”, but rather it's that it's extremely powerful for opening, managing, and editing files. Each little trick I get brings me more and more to the place where I can code as fast as I can think. The Pragmatic Programmer(book affiliate link) tells us to know our text editors. The more I get to kn...
Acceptance Tests with RSpec and Capybara
May 23, 2011 15:49 - 27 minutes - 104 MB VideoOn the Ruby Rogues podcast I mentioned that I had moved away from Cucumber to RSpec and Capybara for my integration tests. Here's a demo on how to do some TDD with RSpec and Capybara. Download 180.6 MB Download iPhone & iPod 109.2 MB
Acceptance Tests with RSpec and Capybara
May 23, 2011 15:49 - 27 minutes - 104 MB VideoOn the Ruby Rogues podcast I mentioned that I had moved away from Cucumber to RSpec and Capybara for my integration tests. Here's a demo on how to do some TDD with RSpec and Capybara. Download 180.6 MB Download iPhone & iPod 109.2 MB
Acceptance Tests with RSpec and Capybara
May 23, 2011 15:49 - 27 minutes - 104 MB VideoOn the Ruby Rogues podcast I mentioned that I had moved away from Cucumber to RSpec and Capybara for my integration tests. Here's a demo on how to do some TDD with RSpec and Capybara. Download 180.6 MB Download iPhone & iPod 109.2 MB
Rails Engines
May 20, 2011 19:50 - 9 minutes - 13.6 MBRails Engines are a terrific way of mounting on Ruby on Rails application into another. A Rails Engine is basically a Rails application with an Engine class installed. The main application—the application your engine is mounted into—uses the generators, rake tasks, and routes from engines automatically. As of Rails 3.1, rake tasks are provided to move migrations and assets into the main application. You can use Engines to add features to your current application or you can use it to provide...
003 RR Templating Languages for HTML, CSS, and JavaScript
May 20, 2011 00:04 - 47 minutes - 65.5 MBThe Rogues talk about templating languages for HTML, CSS, and JavaScript.
058 TMTC Tyler Bye (ABC Network iPad App)
May 19, 2011 21:26 - 38 minutes - 53.2 MBThere's a lot more to the ABC iPad app than just the iOS components. There's a HTTP Live Streaming level to this that manages all of the content for the application and streams it to the devices. Tyler explains the history of Protoven, Uplynk, and a lot of technical details behind how the ABC iPad app hangs together both on the backend and frontend.
CoffeeScript: The Cool Parts
May 13, 2011 03:56 - 22 minutes - 83 MB VideoCoffeeScript offers more than nice syntax for setting and managing data and functions. It also offers Classes, Inheritance, access to a 'super' method, Ruby-style string interpolation, easy variable and function bindings, and chained comparisons. Here's the code I showed in the video: class Vehicle constructor: (@name) -> move: (miles) -> console.log @name + " drove " + miles + " miles." class VWBug extends Vehicle move: -> console.log "Cruisin'..." super 100 class Truck...
CoffeeScript: The Cool Parts
May 13, 2011 03:56 - 143 MB VideoCoffeeScript offers more than nice syntax for setting and managing data and functions. It also offers Classes, Inheritance, access to a 'super' method, Ruby-style string interpolation, easy variable and function bindings, and chained comparisons. Here's the code I showed in the video: class Vehicle constructor: (@name) -> move: (miles) -> console.log @name + " drove " + miles + " miles." class VWBug extends Vehicle move: -> console.log "Cruisin'..." super 100 class Truck...
CoffeeScript: The Cool Parts
May 13, 2011 03:56 - 143 MB VideoCoffeeScript offers more than nice syntax for setting and managing data and functions. It also offers Classes, Inheritance, access to a 'super' method, Ruby-style string interpolation, easy variable and function bindings, and chained comparisons. Here's the code I showed in the video: class Vehicle constructor: (@name) -> move: (miles) -> console.log @name + " drove " + miles + " miles." class VWBug extends Vehicle move: -> console.log "Cruisin'..." super 100 class Truck...
002 RR Virtual Machines, Concurrency, and the Future of Ruby
May 13, 2011 01:32 - 53 minutes - 61.7 MBThe Rogues talk about virtual machines, concurrency, and the future of Ruby.
057 TMTC Jamis Buck Interview
May 12, 2011 22:52 - 42 minutes - 49 MBJamis Buck is a Ruby on Rails developer working at 37signals. He was part of the Rails Core Team, created the SQLite driver for Ruby, and created the Capistrano library for deploying applications in Ruby. We talked about several things including: the Maze algorithms he's been working on on his blog Capistrano Ruby on Rails 37signals Vim and text editors Testing tools
009 RC RubyGems and Bundler
May 12, 2011 20:42 - 13 minutes - 15.2 MBRuby has a package manager for its libraries or gems. It should be a concept familiar with other package managers like apt, yum, or yast. Gems are libraries for Ruby. Many gems are built to extend Ruby on Rails and are a great way to add functionality to your application. You can see available gems at RubyGems.org. In order to install Rails, you typically need Rubygems installed via a "gem install rails". To get a pre-release version of Rails, you can run "gem install rails --pre". Gems fo...
008 RC ActiveRecord Migration Gotchas
May 07, 2011 21:08 - 14 minutes - 16.5 MBRails Migrations are generally pretty straightforward, but there are a few things that people do that wind up giving them headaches later on. First, don't change migrations once they've been committed or deployed. This causes problems because ActiveRecord tracks migrations that have already been run. So, editing a migration that's already been run will result in your changes not being made. Second, use Rails' built in migration and model generators. It generates the id number in the front ...
Rails 3.1 Beta – Sprockets, CoffeeScript, and JQuery – A Teach Me To Code Tutorial
May 07, 2011 19:25 - 10 minutes - 39.4 MB VideoRuby on Rails 3.1 is moving to use Sprockets to compile CoffeeScript into JavaScript and include JQuery in it's JavaScript by default. This is a quick demo of how it all hangs together to manage your JavaScript in Rails 3.1. Download 65.7 MB Download (iPod & iPhone) 41.4 MB
Rails 3.1 Beta – Sprockets, CoffeeScript, and JQuery – A Teach Me To Code Tutorial
May 07, 2011 19:25 - 10 minutes - 39.4 MB VideoRuby on Rails 3.1 is moving to use Sprockets to compile CoffeeScript into JavaScript and include JQuery in it's JavaScript by default. This is a quick demo of how it all hangs together to manage your JavaScript in Rails 3.1. Download 65.7 MB Download (iPod & iPhone) 41.4 MB
Rails 3.1 Beta – Sprockets, CoffeeScript, and JQuery – A Teach Me To Code Tutorial
May 07, 2011 19:25 - 10 minutes - 39.4 MB VideoRuby on Rails 3.1 is moving to use Sprockets to compile CoffeeScript into JavaScript and include JQuery in it's JavaScript by default. This is a quick demo of how it all hangs together to manage your JavaScript in Rails 3.1. Download 65.7 MB Download (iPod & iPhone) 41.4 MB
001 RR Testing Practices and Tools
May 06, 2011 00:42 - 55 minutes - 63.9 MBThe Rogues talk about Ruby testing practices and tools.