best ruby on rails book

versionsRvm List knownInstall a ruby versionRvm install 1.9.3The latest 1.9.3 is installed here. You can install it in the rvm List known list. Use a ruby versionRvm use 1.9.3If you want to set it to the default version, you can Rvm use 1.9.3 -- defaultQuery installed RubyRvm listUninstall an installed versionRvm remove 1.9.2 6. Install the yaml Library:Apt-Get install libyaml-Dev 7. Because there are diff

Http://developer.51cto.com/art/200610/33171.htm Ror is Ruby on Rails. Ruby is a well-known dynamic language. It's a dynamicLanguage. Simple andEasy. Dynamic Language is interpreted and executed, but the performance may be discounted, but not absolute, because the application is complex and the performance is comprehensive, this was responded to in a circulating t

I went to bed 5:30 last night, frantically configuring the vim environment and finally finished the fantastic Ruby on Rails development tool. I have installed the Vim-ruby in this vim environment, of course this should you to install, in Ubuntu below a simple command: sudo apt-get install Vim-ruby But as if your vim

always be the first gem installed on the system. Rake is a build tool similar to make, but it allows Ruby to write rakefile (how to build a definition file ), specifically, a specific DSL (domain-specific language) is used to provide high readability while maintaining Ruby's powerful functions. Rails uses rake extension to complete a variety of undesirable tasks, such as database initialization and updates

Create Rails Project To create a normal Rails project, you can use the following command directly: Rails New Blog But in the country because the speed of connection RubyGems is too slow, and Rails by default after building the project structure, will use the bundle command to download the installation de

Use Instantrails to quickly build ruby on rails development environment There's been a lot of interest in Ruby on Rails to see what's been praised by many people, but the development that has been done under Windows is a headache for Ruby on Rails's development environment,

Today, I learned about the latest popular Ruby on Rails, which is that when a code generator links an Oracle database, it checks for half a day of data. Finally found a way, ^______^. 1. Installation drive http://rubyforge.org/projects/ruby-oci8/ Download and run (double-click) Ruby-oci8-mswin inside the *.RB 2. Ch

Ruby on Rails can be installed in two ways. 1. Direct Installation We can download Ruby on Rails from the official website.:Http://rubyonrails.org/ After the download is complete, you can directly install it. It cannot be installed in a path with Chinese characters or it will not run properly. Ii. You can use ins

Preface In routing loading, I roughly introduced how to load the simplest route in rails. In this article, I will introduce how more complex named route and restful-related resources in the rails system are loaded. In order not to repeat too much pen and ink, this article will be carried out on the basis of the previous article. If you find that when reading this article separately, you are a little confus

0. System Environment Uname-a Linux moyo-desktop3.19.0-21-generic#21-Ubuntu1418:31:112015 x86_64 x86_64 x86_64 GNU/Linux1. Install Curl sudo apt-get Install Curl 2. Install RVM Curl-l Get.rvm.io | Bash-s Stable > 注意：如果提示错误警告，执行下面命名来获取公钥：gpg --keyserver hkp://keys.gnupg.net409B6B1796C275462A1703113804BB82D39DC0E3>如果依然报错，执行下面命令：curl -sSL https://rvm.io/mpapis.asc | gpg --import ->完成后重新安装rvm：curl -L get.rvm.io | bash -s stableActivate RVM: Source/h

Getting started with image processing in Ruby on Rails, rubyrails Images can be said to be a vital part of any application. From social networks to a simple Bug tracker, images play an important role. However, managing images is not an easy task. It takes a lot of time and effort to plan images in advance. This article demonstrates how to achieve this in Rail. How to process your images and create multiple

Release date:Updated on: Affected Systems:Ruby on Rails 3.xUnaffected system:Ruby on Rails 3.0.4Description:--------------------------------------------------------------------------------Bugtraq id: 46292Cve id: CVE-2011-0448, CVE-2011-0449 Ruby on Rails (RoR or Rails) is

Action View: Helpers AssetsAndAjax RESTfulAnd table ticket Design Multi-country regions and zones ActionMailer: EmailSending and receiving ActiveSupportTool correspondence Handler RailsTips RailsSuspected zookeeper User Authentication Zookeeper Performance and Cache Network Security Website website Non-synchronous processing RailsProgram Best Practices Appendix Development Environment Security GitVersion Control System Basis RailsCase Study

In this article, I read "Creating a Ruby on Rails Development Environment on Mac OS X" and sorted it out following his steps. The content is basically the same, and some images are added. If you want to see the original content, please refer to the blog of the repair team here. To install Ruby on Rails on Mac, you mus

1) Install Ruby Download installation package:http://rubyforge.org/frs/?group_id=167, I downloaded the Rubyinstaller-1.8.7-p302.exe After loading, you can use RUBY-V test whether the installation is successful, such as figure, if a version of the installation is successful 2) Installation RubyGems RubyGems is a Ruby Package Manager tool that mak

Implementing the search for XForms by doctors and patients Brief introduction So far, we have created a DB2 database and three XForms to help patients and nurses manage patient data. By using Ruby on Rails as a processing interface, patients can add new records to the database and update the information later. So the nurse can view and modify the information appropriately and approve the input when the pa

(: starting_worker_process) Do | forked | extends Mapper. Connection. Connect if forked endend 4. Create a mongo. Rake file under the lib directory (not used in this article) Namespace: DB do namespace: test do task: Prepare do # Stub Out for MongoDB end endend After completing the preceding steps, start the program: $ Rails server ** notice: C extension not loaded. this is required for optimum MongoDB Rub