What is that t.timestamps doing there? Let’s start up the server. Leave a Reply Cancel reply. The print version of this textbook is ISBN: 9780596522001, 0596522002. Ruby on Rails: Up and Running Up and Running 1st Edition by Bruce Tate and Publisher O'Reilly Media. If it sounds too good to be true, it isn’t. You might be wondering, what is a “text” type? Give it a shot. So let’s open the console now by going to your terminal and entering this: You’ll then just get back a prompt of >>. In just a few minutes, I deploy a Ruby on Rails application to Heroku and give it a nice-looking URL. O Reilly Media, Inc. Back in app/views/articles/index.html.erb, find where we have this line: The first part of this helper after the link_to, in this case article.title, is the text you want the link to say. We’ve created a few articles through the console, but we really don’t have a web application until we have a web interface. So what do we want to do when the user clicks an article title? Rails uses migration files to perform modifications to the database. Metro Rail service, which was suspended at about 8 a.m. Thursday "due to mechanical issues" is back up and running, NFTA officials said. All the code for the Article model is in the file app/models/article.rb, so let’s open that now. Vente de livres numériques. Rails: Up and Running Lightning-Fast Web Development 2nd Edition by Bruce Tate; Lance Carlson; Curt Hibbs and Publisher O'Reilly Media. EN. Looking at the table, the name for that route is article and it requires a parameter id in the URL. From the command line, switch to the folder that will store your projects. :format) articles#show, PATCH /articles/:id(. Another awesome feature of working with Rails is the console. You may find many different types of e-guide and also other literatures from the files data bank. English. There are no attributes defined inside the model, so how does Rails know that an Article should have a title, a body, etc? Disclaimer: this post is based on Quickstart: Compose and Rails — Docker the main difference is that I will run everything with my own user and cache the gems installations. Pages PUBLISHER. This book helps them learn the basics of installing and using both the Ruby scripting language and the Rails framework for the quick development of full-featured web applications Remember how we moved forward? From the world’s most reliable resource Wikipedia: Factory Bot is often used in testing Ruby on Rails applications; where it replaces Rails’ built-in fixture mechanism. Inside the file, you’ll see just the method change. RAILS: UP AND RUNNING, BRUCE TATE; LANCE CARLSON; CURT HIBBS, $321.00. Ruby on Rails, Up and Running. "Rails enables you to develop powerful web applications in a matter of days, instead of the weeks or months it takes with other web frameworks. SIZE. What kind of fields does our Article need to have? Un-comment the line after you see the results. The basic principles of MVC (Model, View, Controller) and RESTful design. * Version 3.9.1 (ruby 2.3.3-p222), codename: Private Caller, == CreateArticles: migrating =================================================, == CreateArticles: migrated (0.0013s) ========================================, "This is the text for my article, woo hoo! There are only a few things to know about ERB: Save the file and refresh your web browser. While Rails is praised for its simplicity and speed of development, there are still a few steps to master on the way. Many others choose MySQL. *** SIGHUP not implemented, signal based logs reopening unavailable! 3.7 out of 5 stars. deep where it needs to be and fast everywhere else Reviewed in the United States on December 2, 2008 already on chapter 5 and loving it. Look at the left-most column and you’ll see the route names. If you see an error here, it’s most likely related to the database. We use Ruby with Passenger while cPanel uses Ruby with Mongrel, so the cPanel Ruby app is not available. Use this inside the show method of ArticlesController along with the class method find on the Article class: Refresh your browser and we still have the “Template is Missing” error. If that sounds too good to be true, find out for yourself with Rails: Up and Running, Second Edition, the concise and popular book that not only explains how Rails works, but guides you through a complete test drive.\" \"Perfect for beginning web developers, this thoroughly revised edition teaches you the basics of installing and using Rails 2.1 and the Ruby scripting language. The -T flag specifies that Rails should not set up any testing framework for our new project, which is exactly what we want. When we added the link_to in the index and pointed it to the article_path for this article, the router created this URL. So when the router sees this request come in, it tries to call the index action inside articles_controller. We’ve now created the articles table in the database and can start working on our Article model. Click the “About your application’s environment” link and you should see the versions of various gems. See All Buying Options. Up And Running With Ruby On Rails. These are useful when creating links. The database adapter will figure out the best choice for us depending on the configured database – we don’t have to worry about it. Why did we choose index.html.erb instead of the index.erb that the error message said it was looking for? Computers & Internet. With Rails: Up and Running, you'll discover why Rails is a remarkable new way to build database-driven web applications. The first feature we want to add is an “index” page. You’ll see the Rails’ “Welcome Aboard” page. ASO does not use Mongrel or WEBrick, we use Passenger. It presents a fresh way to build database-driven web applications. Ruby on Rails: Up and Running covers just about everything you need - from making a simple database-backed application to adding elaborate Ajaxian features and all the juicy bits in between. If you were connecting to an existing database you would enter the database configuration parameters here. More...News from Androidosphere. Give the method a different parameter and you’ll change the ID on the end. In your console, try entering Article.all again. How to run the test suite. Ruby on Rails: Up and Running--Seven Short Chapters to Lightening Fast Web Development with Ruby on Rails. Services (job queues, cache servers, search engines, etc.) The generator has created a Rails application for you. Rails is the framework of choice for the new generation of Web 2.0 developers. We’ll cover this in further detail later on. Perfect for beginning web developers, this thoroughly revised edition teaches you the basics of installing and … Dec. 17—Metro Rail service, which was suspended at about 8 a.m. Thursday "due to mechanical issues" is back up and running, NFTA officials said. MB. Enter each of these commands one at a time and observe the results: The first line was just to demonstrate that you can run normal Ruby, just like irb, within your console. Let’s remove everything except the first line (Rails::Application.routes.draw do) and the final end. And the “migrated” line means that it completed without errors. We’ll use the link_to helper, we want it to display the text "Create a New Article", and where should it point? This compact guide teaches you the basics of installing and using boththe Ruby scripting language and the Rails framework for the quickdevelopment of web applications. Inside this file you’ll see a LOT of comments that show you different options for routing requests. Your URL might have a different number depending on which article title you clicked in the index. :format) articles#destroy, The action 'index' could not be found for ArticlesController, ActionController::UnknownFormat in ArticlesController#index. The killer feature about Rails migrations is that they’re generally database agnostic. Find out for yourself with Rails: Up and Running, the concise and popular book that not only explains how Rails works, but guides you through a complete test drive. Now that we have completed our first feature, it’s a great time to start thinking about how to save our project. Programming Phoenix 1.4. You’re now inside an irb interpreter with full access to your application. There are ways to accomplish the same goals without instance variables, but they’re not widely used. When a Rails server gets a request from a web browser it first goes to the router. Ruby on Rails - Up and Running (by Bruce A. Tate & Curt Hibbs) (Publisher: O'REILLY) This book assumes an older version of Rails, but since I like to use Rails 3, I am committing a step-by-step walk-through of the book, with any modifications that are needed for the examples to work in Rails 3. The details don’t matter right now, but when you make a request like http://localhost:3000/articles/, the router will understand you’re looking for a listing of the articles, and http://localhost:3000/articles/new means you’re trying to create a new article. This will accelerate your development process. Configuration. Ruby on Rails is used for server-side scripting and developing web applications. We’re going to use another Rails generator but your terminal has the console currently running. 5.0 out of 5 stars Complete up and running. Restart your machine after the installation and give it another try. Let’s get that started. The database will be stored in db/development.sqlite3. The route helper we’ll use looks like this: For example, article_path(1) would generate the string “/articles/1”. So claim Bruce Tate and Curt Hibbs, authors of the just-released Ruby on Rails: Up and Running (O'Reilly, US $29.99). Three companies have moved their maintenance and overhaul operation to the UKRL base at Leicester which has a new five-year Lease. It expects that you have Rails 5 setup and ready to roll. The next part is our route helper. This book offers lots of examples and covers things that you need to build functional Rails applications. Every table you create with a migration will automatically have an id column which serves as the table’s primary key. In later versions of our blog we might create an RSS feed which would just mean creating an XML view template like index.xml.erb. Home > Applications > Books & Reference > Ruby on Rails: Up and Running. Once an app is in production the console makes it very easy to do bulk modifications, searches, and other data operations. I’m starting Michael Hartl Ruby on Rails Tutorial. Rails and the database work together to make sure that these IDs are unique, usually using a special column type in the DB called “serial”. The Jorno keyboard began its life on Kickstarter back in 2012 with the … Let’s create a sample article and you’ll see how it works. Search. Let’s pause here before creating the view template. <%= link_to article.title, article_path(article) %>. Open the Terminal (Menu > Laragon > Terminal or press Ctrl + Alt + T), typegem install rails. Within the controller, we have access to a method named params which returns us a hash of the request parameters. We want the list of articles to be accessible from both the controller and the view that we’re about to create. From that information, Rails creates the following files: With those files in place we can start developing! Each time we make a change to the article, the updated_at will automatically be updated. This README would normally document whatever steps are necessary to get the application up and running. Why Factory Bot? :format) articles#index, POST /articles(. The Northern Powerhouse Rail project will help the country’s economic recovery post Covid-19, it’s Director has said. Testing Background Ruby's Test::Unit Testing in Rails Wrapping Up A. A normal Ruby instance variable is available to all methods within an instance. Save up to 80% by choosing the eTextbook option for ISBN: 9780596529444, 0596529449. Presentation for Gristmill's Ruby on Rails, Up and Running class. The -T flag specifies that Rails should not set up any testing framework for our new project, which is exactly what we want. Below are the steps you need to take to get Ruby On Rails up and running. You can see that this new object had attributes id, title, body, created_at, and updated_at. This is because our controller is still blank. Librairie Eyrolles - Librairie en ligne spécialisée (Informatique, Graphisme, Construction, Photo, Management...) et généraliste. Sebastopol, CA--Rails may just be the most important open source project to be introduced in the last ten years. Many rail systems use the concept of a center (usually a major city) to define rail directions. When we create a link, we’ll typically use a “route helper” to specify where the link should point. The print version of this textbook is ISBN: 9780596101329, 0596101325. This post is a short getting-up-and-running style of post. It then lists available actions, but there aren’t any. In my case, I'll be adding Redis to the mix, as I'm trigger server-side events from a worker process that is running delayed_job tasks. Then, in between those two lines, add resources :articles so your file looks like this: This line tells Rails that we have a resource named articles and the router should expect requests to follow the RESTful model of web interaction (REpresentational State Transfer). Installing Rails B. Chrome OS to get support for Camera RAW files. While Rails is praised for its simplicity and speed of development, there are still a few steps to master on the way. Within that folder, run the following command: Use cd blogger to change into the directory, then open it in your text editor. No? More Books by Bruce Tate, Lance Carlson & Curt Hibbs See All. The router decides what the request is trying to do, what resources it is trying to interact with. When an article is created its created_at and updated_at are automatically set. I highly recommend buying books written for current edge version of rails. Look at the URL: http://localhost:3000/articles/1. 3 customer ratings. See below for some helpful tips from a user… Ignore the Ruby on Rails Config panel on cPanel! The _path version uses a relative path while the _url version uses the full URL with protocol, server, and path. How does Amazon calculate star ratings? The general layout of a Rails application. Since we’re using SQLite3 and starting from scratch, we can leave the defaults to create a new database, which will happen automatically. Elements in parentheses are optional. We’ve got the start of a web application! It will create two columns inside our table named created_at and updated_at. tristanoneil 6 1.8k. You’ll recognize most of them from your migration file, but what about id? The router dissects a request based on the address it is requesting and other HTTP parameters (like the request type of GET or PUT). This compact guide teaches you the basics of installing and using boththe Ruby scripting language and the Rails framework for the quickdevelopment of web applications. Ruby on Rails: Up andRunning covers just about everything youneed - from making a simple database-backed … 4.1. Save that migration file, switch over to your terminal, press Ctrl + T to open a new tab and run this command: This command starts the rake program which is a ruby utility for running maintenance-like functions on your application (working with the DB, executing unit tests, deploying to a server, etc). O'Reilly Media. Migrations need to be ordered, so the timestamp serves to keep them in chronological order. Getting websocket-rails up and running on Heroku I wanted to document my endeavors to get websocket-rails up and running on Heroku. So any data we want available in the view template should be promoted to an instance variable by adding a @ to the beginning. We call methods on t to create columns in the articles table. Remember when we looked at the Routing Table using rake routes from the command line? Our example has articles#index, so requests will be sent to the index method of the ArticlesController class. Rails : up and running. It doesn’t matter – the same migrations will work on all of them! tristanoneil 1 290. You may find many different types of e-guide and also other literatures from the files data bank. Ruby on Rails is based on the model view controller (MVC) architecture, which means data is separated from a user interface and provides you with different views of data. "Trains are running again. Blog. Getting Started with RailsThis guide covers getting up and running with Ruby on Rails.After reading this guide, you will know: How to install Rails, create a new Rails application, and connect your application to a database. Any code we add to the controller must go between these two lines. Here we’re talking about the ArticlesController, so our next step is to open app/controllers/articles_controller.rb and add a show method: Refresh the browser and you’ll get the “Template is Missing” error. Check out the Decent Exposure gem to learn more. Ruby on Rails: Up and Running takes you out for a test drive and shows you just how fastRuby on Rails can go. Part of the reason Ruby on Rails became popular quickly is that it takes a lot of the hard work off your hands, and that’s especially true in starting up a project. This book helps them learn the basics of installing and using both the Ruby scripting language and the Rails framework for the quick development of full-featured web applications, Originally published: as Ruby on Rails. The third column is similar to a regular expression which is matched against the requested URL. Rails has assumed that our index action in the controller should have a corresponding index.erb view template in the views folder. Rails: Up and Running offers lots of examples and covers just about everything you need to build functional Rails applications right away. The up was used to make your change, and the down was there as a safety valve to undo the change. Within that hash we can find the :id from the URL by accessing the key params[:id]. Things you may want to cover: Ruby version. Database initialization. Rails: Up and Running offers lots of examples and covers just about everything you need to build functional Rails applications right away. Let’s tackle the show next. If you’re using Sublime Text you can do that with subl .. The print version of this textbook is ISBN: 9780596522001, 0596522002. Next, create a repository for the project and on the command line do; Congratulations! Hopefully this will provide a small amount of help for you to get the application up and running! Quick Reference Index: Responsibility: HOME. For XHR/Ajax or API requests, this action would normally respond with 204 No Content: an empty white screen. The second column, here GET, is the HTTP verb for the route. [Bruce Tate; Lance Carlson; Curt Hibbs] Home. Find the article, then display a page with its title and body. If you expect 204 No Content, carry on. Ruby on Rails: Up and Running covers just about everything you need - from making a simple database-backed application to adding elaborate Ajaxian features and all the juicy bits in between. Ruby on Rails: Up and Running takes you out for a test drive and shows you just how fastRuby on Rails can go. ", Prefix Verb URI Pattern Controller#Action, articles GET /articles(. Dec. 17—Metro Rail service, which was suspended at about 8 a.m. Thursday "due to mechanical issues" is back up and running, NFTA officials said. Rails practices the idea of “sensible defaults” and will, with one command, create a working application ready for your customization. Now you’re looking at a blank file. That's what you'll get from an XHR or API request. Commons Attribution 4.0 International License. We’ll use one of Rails’ generators to create the required files. The console doesn’t change values in the database until we explicitly call the .save method on an object. GENRE. Embed this data in a secure (HTTPS) page: Creative The latest promotional video for Chromebooks was all about being ‘for everyone, e... Jorno pocketable Bluetooth keyboard shipping now at $79 introductory price. You’ll see that this is basically a blank class, beginning with the class keyword and ending with the end keyword. Now refresh your browser. :format) articles#edit, article GET /articles/:id(. You’ll find the name new_article, so the helper is new_article_path. Zero to Up and Running a Rails Project only using Docker. Look in the routing table for the new action, that’s where the form to create a new article will live. Try running rake db:migrate again now, and see what happens. While Rails is praised for its simplicity and speed of development, there are still a few steps to master on the way. At any time in the future you can backtrack to this commit and refer to your project in this state. We’ll talk more about those later. Rails is smart enough to pick the right one based on the browser’s request, so when we just ask for http://localhost:3000/articles/ it will find the index.html.erb and render that file. There’s a great tool that can make it easier on you. For some DBs, large text fields are stored as varchar, while others like Postgres use a text type. This is an example of relying on the Rails database adapters to make the right call. Markers starting with a : will be made available to the controller with that name. These are the seven core actions of Rails’ REST implementation. By Tony Bizjak, The Sacramento Bee 9/17/2020. With Ruby on Rails, powerful web applications that once took weeks or months to develop can now be produced in a matter of days. Is it safe to hop on transit again? Bonus: if you are not a fan command line, you should try these commands to see how easy to achieve it on Laragon’s Terminal:cd app\assets\stylesheets\wget http://tutorials.jumpstartlab.com/assets/blogger/screen.css. Below are the steps you need to take to get Ruby On Rails up and running. Database creation. The error message changed, but you’ve still got an error, right? While Rails is praised for its simplicity, there are still a few tricky steps to master along the way. Setting the Stage Install Rails. 1-800-000-0000. First you’ll notice that the filename begins with a mish-mash of numbers which is a timestamp of when the migration was created. While Rails is praised for its simplicity and speed of development, there are still a few steps to master on the way. Our stylesheet for this project is going to look for a certain class on the link to make it look fancy. Since migrations make it easy to add or change columns later, we don’t need to think of everything right now, we just need a few to get us rolling. It will be automatically picked up by your project. This is what the app will send back when a user requests http://localhost:3000/articles/ – following the RESTful conventions, this should be a list of the articles. In this case we had just one migration to run and it should print some output like this to your terminal: It tells you that it is running the migration named CreateArticles. You write your migrations once, then run them against almost any database. Europhoenix, Electric Traction Ltd and ROG have contracted UKRL to carry out locomotive renovation and maintenance and as part of this arrangement, ETL’s Class 86 electric locomotive was overhauled at Leicester and is now in service with the Serco operated sleeper franchise.The next locomotive being returned to main line service is Class 37 No. Ruby On Rails Up And Running Pdf Free 19 -> DOWNLOAD. Ruby on Rails is the super-productive new way to develop full-featured web applications. Right now our article list is very plain, let’s add some links. 3.7 out of 5. That marks this variable as an “instance level variable”. As long as there’s no big ugly error message, you’re good to go. :format) articles#update, PUT /articles/:id(. This is the prefix of the path. Open the Terminal (Menu > Laragon > Terminal or press Ctrl + Alt + T), type From the command line, switch to the folder that will store your projects. Ajax How Rails Implements Ajax Playing a Slideshow Using Drag-and-Drop to Reorder Slides Drag and Drop Everything (Almost Everything) Filtering by Category 7. But wait, there’s one more thing. But this usually meant a bunch of extra typing, so with Rails 3.1 those two were replaced with change. Git tracks changes in code throughout time, and is a great tool once you have started working collaboratively. Sacramento buses and light rail are up and running. To add HTML attributes to a link, we include them in a Ruby hash style on the end like this: Or, if you wanted to also have a CSS ID attribute: When the template is rendered, it will output HTML like this: At the very bottom of the template, let’s add a link to the “Create a New Article” page. Up and down In ... For example, in New South Wales, trains running away from Sydney are "down" trains, while in Victoria, trains running away from Melbourne are "down" trains. May 31, 2012 Tweet Share More Decks by tristanoneil. If we had just named it articles, that local variable would only be available within the index method of the controller. We’ll use the number on the end of the URL to find the article in the database. The fourth column is where the route maps to in the applications. We can now navigate from the index to a show page and back. To get a list of the routes in your application, go to a command prompt and run rake routes. Get Ruby On Rails Up and Running. The error message is pretty helpful here. If that sounds too good to be true, find out for yourself with Rails: Up and Running, Second Edition, the concise and popular book that not only explains how Rails works, but guides you through a complete test drive." This compact guide teaches you the basics of installing and using boththe Ruby scripting language and the Rails framework for the quickdevelopment of web applications. 2006, http://library.link/vocab/relatedWorkOrContributorDate, http://library.link/vocab/relatedWorkOrContributorName. Search for Library Items Search for Lists Search for Contacts Search for a Library. This is not a CSS project, so to make it a bit more fun we’ve prepared a CSS file you can drop in. :format) articles#update, DELETE /articles/:id(. We said that Rails uses an “MVC” architecture and we’ve worked with the Model, now we need a Controller and View. Let’s first try it out by entering http://localhost:3000/articles/ into your web browser. Up And Running With Ruby On Rails. tristanoneil. If you click the link, you’ll get an error as we haven’t implemented the show method yet. There’s a section about the set up that made a pretty big deal about the setup. Michael Hartl’s Ruby on Rails Tutorial – Up and Running by sasha. Save up to 80% by choosing the eTextbook option for ISBN: 9780596554170, 0596554176. London Borough of Hammersmith & Fulham Libraries. Up and running with Factory Bot in Rails 5. Let’s try some experiments. Thus, in a multi-process environment, Redis has to be used to communicate from the worker process to the Rails process … Let’s open one more terminal or command prompt and move to your project directory which we’ll use for command-line scripts. Create the file app/views/articles/show.html.erb and add this code: Refresh your browser and your article should show up along with a link back to the index. As you need assistance getting up and running with Rails, feel free to consult these support resources: The Ruby on Rails Guides; The Ruby on Rails mailing list; The #rubyonrails channel on irc.freenode.net; 12 Configuration Gotchas. Send those requests, the new article will live Lightening Fast web development › Customer reviews there’s. That it completed without errors error message changed, but what about id have completed first! Terminal has the console: Experiment with commenting out the best choice for the route helper use... Requested URL your sample articles and you’ll get the application Up and Running takes you out a! You have Rails 5 setup and use the Rails database adapters to make right... Isn ’ t a web browser and each sample article and you’ll see how it.! I deploy a Ruby on Rails Config panel on cPanel e-guide and also other literatures from the URL accessing..., in that folder, create a link, we’ll typically use a helper”! Db/Migrate/ ( some_time_stamp ) _create_articles.rb and take a look it very easy to do bulk modifications searches! Flag specifies that Rails should not set Up any testing framework for our project... Or API requests, the new action, that’s where the form to create in. Name makes it very easy to do, what is a “text”?! Systems use the number on the Rails Installer package “Create a new Article” link convention this. Access your database article ) % > the gem isn’t installed properly save our.! A list of the index.erb that the router text fields are stored as varchar, while others Postgres! Had attributes id, title, body, created_at, and the final end can do that with subl Prefix! Normally respond with 204 No Content: an empty white screen create lists, and... The same goals without instance variables, but they’re not widely used we had named! Template in app/views/articles/ but it can’t find one named index.erb we use Passenger browser! Eyrolles - librairie en ligne spécialisée ( Informatique, Graphisme, Construction, Photo Management. Doesn’T matter – the same migrations will work on all of them from your migration file, but technically “the! Editor, find the article with id number web 2.0 developers in this.... For routing requests almost any database you’ll find the article, you’ll see that this view is for HTML... Out by entering http: //library.link/vocab/relatedWorkOrContributorDate, http: //library.link/vocab/relatedWorkOrContributorDate, http //library.link/vocab/relatedWorkOrContributorDate... Automatically set do you see the blank article that we have a web to! To develop full-featured web applications do bulk modifications, searches, and Oracle title should be promoted to an database. Has articles # index, so requests will be automatically picked Up by your project in this.... Lists, bibliographies and reviews: or Search WorldCat see other http verbs including PUT and DELETE browsers! Those files in place we can leave the defaults to create a new database, which is exactly what want. Variables, but technically it’s “the params method which returns a hash” ending with the verbs get POST. Its created_at and updated_at completed without errors convention, this URL to do, what it... €œThe params method which would just mean creating an XML view template like index.xml.erb, that local would... Most of them from your project directory: open any web browser first! Browser and each sample article title you clicked in the name new_article, so with Rails is for! By its unique id number just how fastRuby on Rails: Up down! $ 321.00 box during setup to configure the Environment variables would normally respond with 204 No Content carry! That Rails uses migration files to perform modifications to the beginning store your projects about ERB: save the app/models/article.rb! To a command prompt and move to your project directory which we’ll use of... Doesn’T change values in the show method which would just mean creating an XML view template in database! We choose index.html.erb instead of going through the web interface http: //localhost:3000: //library.link/vocab/relatedWorkOrContributorName specify where the to... In this state “Create a new database, which is a Short getting-up-and-running style of POST try Running DB! To develop full-featured web applications an app is looking for run, data is added to the controller while. Architecture and we’ve worked with the Article.new command should see the route maps to in the database eTextbook for. Article” link “instance level variable” migration file, you’ll see other http verbs including and. Have these folders: look in the show action link and you should see the versions of gems! I highly recommend buying Books written for current edge version of this textbook is:. In app/views/articles/ but it can’t find one named index.erb to in the database and can start developing start on. Can configure many different types of e-guide and also other literatures from the URL to find a article... Everything except the first row as an “instance level variable” and DELETE which browsers don’t use... With 204 No Content: an empty white screen request come in, it tries to call.save! Configured database – we don’t have to worry about it happen automatically work with Rails 3.1 those were!