ruby on rails tutorial

Development Environment: OS: Windows XP RUBY: ruby1.9.1 Rails: rails2.3.5 IDE: rubymine2.0.1 Flash builder: Flash builder4 Background: In ruby-Flex practice-using swfobject to load SWF in a ruby project describes how to reference SWF on the rails interface. This example des

Writing a database management system with Ruby on Rails is very fast. Ruby on Rails has such a high productivity, not only is Ruby's syntax flexible, but it's all a big program thanks to activity records (active record). So what is an activity record? If you explain it in one sentence, it's a framework that maps data t

1. Nginx Installationsudo apt-get install Nginx2. Ruby Installationsudo apt-get install RubyView version Ruby-v3. Rails Installationsudo apt-get install RailsView version Rails-v4. MYSQL InstallationSUDP apt-get Install Mysql-server myusql-clientLog in to MySQLMysql-uroot-pCheck the port occupied by the MySQL serverNET

For Mac occasions:Which Ruby-"/usr/bin/ruby-" This is the Ruby that comes with Mac, and we want to be able to manage the Ruby version.Installing RVMCurl-l https://~/.profileCheck install ruby conditionRVM RequirementsStatus 1 is wrong." $ (curl-fssl https://raw.githubusercon

D:ror directory (the directory is built by me, the reader can freely )Install MySQL for Ruby driver, command line type: Gem install Mysql-2.8.1.gem6. Go to http://download.csdn.net/detail/luoyeyilin/3614807 download Instantrails-2.0-win.zip extract, search under mysql.so,80k size file Copy the mysql.so to the C:\RUBY\LIB\RUBY\SITE_RUBY\1.8\I386-MSVCRT.You can th

Download the integration pack: http://railsinstaller.org/en the rest of the little things other tutorials can also be found, here is not much to say. After installation, open the Rbreadline.rb file under ruby2.1.0\lib\ruby\site_ruby\2.1.0 in the installation directory, which can be opened using Notepad. Then change require ' DL ' to require ' findle ' Open the command line and execute the following command $ gem Sources--remove https://rubygem

Website development pay attention to is the efficiency, can put an idea in the shortest time to achieve, often easy to occupy the opportunity. While the development of Ruby on Rails is highly efficient, it is not a pleasant thing to do if each development site needs to start from scratch with the tedious basics of registering, logging in, rights management, and forgetting passwords. The following code allow

View View is divided into builder mode and rhtml mode. The following is an example of the builder mode. XML. Div (: class => "productlist") DoXML. timestamp (time. Now)@ Products. Each do | product |XML. Product doXML. productname (product. Title)XML. Price (product. Price,: currency => "USD ")EndEndEnd If the tag and built-in method are repeated, you can use something! () To generate tags Rhtml is similar to JSP. The H method provides HTML EncodingHelper Xxxcontroller correspon

Many documents describe how to use the gem (one-click Ruby installer is already included, and you can use the gem after installation) for Remote Installation. If the network is poor, the installation will fail. I can see an article on the Internet that describes the local installation method. Now I will summarize the installation process for you. First download them from rubyforge.net (the version may be updated during download) Activesupport-1

; class:"Control-label"%> class:"Form-control"%> class="Form-group"> class:"Control-label"%> "if",class:"Form-control"%> ifDevise_mapping.rememberable? -%> class="Form-group"> class="Actions"> "Login",class:"btn Btn-primary"%> "Forgot Password", New_password_path (resource_name),class:"btn Btn-link"%> (8) In order to protect our methods, add a login check before each method app/controllers/application_controller.rbclass Applicationcontroller actioncontroller::base # Prevent CSRF attacks by ra

We've already completed a simple shopping cart, and from this start we'll see how to test in rails. When we created the shopping cart program in our depot directory, there is already a test directory, which is for us to test preparation. So far, we've seen that the fixtrues and Functional,unit directories inside have a test file that corresponds to the controller and model. We first Test products this model. Code test\unit the product_test.rb file i

Rails built log functionality, or more precisely, rails exposes the Logger object, which can be used in all rails programs. Logger is a simple log frame ported from Ruby (you can type RI logger to view the documentation of the standard library in Ruby's command line), and for us, we just need to know that logger can t

Lin Shi, a friend of mine, recommended a web development tool: Ruby. He went to his side in the morning and demonstrated it. It was amazing! As long as you define a database table, regardless of ms SQL and MySQL, the rest of the work is about the rails framework. Let's take a look at the self-contained page of the rails framework. One word can be used to describe

Ruby is indeed very popular, and the network is so popular that I can't help but be impulsive. I found some information to study it and shared it with you. Build a Ruby on Rails environment in Windows Install Ruby:Download the http://www.ruby-lang.org/en/ from the ruby182-15.exe and install Ruby.Add the environment variable [installation directory]/bin to path

Here's how to fix this annoying Ruby on Rails popup message: "The program can ' t-start because Msvcrt-ruby18.dll is missing From your computer. Try reinstalling to fix this problem. " This is fix applies if you are using cucumber on Windows.It turns out the ' error message ' is related to the JSON gem, that Cucumber depends. The details and solution are buried in Thisthread. To fix it, your just have to ru

My little brother was a beginner of Ruby, and I didn't use Linux.Search on the Internet a lot about the configuration of the development environment article, but always and actually a bit in and out, find n times the article, finally found the simplest environment installation configuration method, share the nextRecommended with Ubintu, feel for the habit of using Windows novice, still better operation.We use RVM to install the Management

After several days, the Ror environment was finally ready. In order to prevent future forgetting and minimize detours, we made a special record ========================================================== ===== Installation Process 1. Install rubyinstaller-1.9.2 2. install and execute gem install rails 3. Download dev kit and decompress it to the ruby installation directory. 4. Install Netbeans 6.9.1 5. Enabl

Http://www.songlin51.com/archives/667.html Ubuntu 12.04 redmine2.1 installation record When you install gem install rails, you cannot connect to rails. Solution: Search for railson http://rubygems.org/gems/railsto download rails. gem for installation. An error is reported when installing gem install mysql2.Building native extensions. This cocould take a while

error:in ' require ': Cannot load such file--sqlite3/sqlite3_native (Loaderror)Remove the D:\Ruby22-x64\lib\ruby\gems\2.2under Ruby first. 0 \cache Directory, then enter in cmd: Gem install Sqlite3, and finally into D:\Ruby22-x64\lib\ruby\gems\2.2. 0\specifications directory, find sqlite3-1.3. -x64-mingw32.gemspec file, change s.require_paths=["lib"to s.require_p

Let's take a look at some tips for debugging this time. First, and most importantly, writing test code, writing unit tests and functional tests in rails is simple, using them to reduce the rate of bugs, or to avoid bugs in your previous code. The test code tells you what works and what doesn't, and the test code helps you isolate the problematic code, because sometimes the bug doesn't show up quickly. If the problem occurs in a model, we can use th