ruby on rails examples

Zhou haihan 2010.7.12 Ubuntu 10.04 has the following problems when installing Ruby and rails: 'Require ': no such file to load -- mkmf (loaderror) Installation Process: Install ruby1.9.1 Zhouhh @ zhh64 :~ $ Sudo apt-Get install ruby1.9.1-full Zhouhh @ zhh64 :~ $ Sudo apt-Get install rubygems1.9.1GEM is Ruby's automatic packaging and Installation tool. Install MySQL server and client Zhouhh @ zhh64 :~ $

Release date: 2011-11-17Updated on: 2011-11-21 Affected Systems:Ruby on Rails 3.xUnaffected system:Ruby on Rails 3.1.2Ruby on Rails 3.0.11Description:--------------------------------------------------------------------------------Bugtraq id: 50722 Ruby on Rails (RoR or

This article is where I read Hugh wrote "Build Ruby on Rails development environment on Mac OS X", followed his steps and sorted it out. The content is basically consistent, adding some graphs. If you want to see the original content, look at the Hugh blog here. To install Ruby on Rails on a Mac, you first have to inst

I'm very happy to announce that Rails 4.0 now supports PostgreSQL array types. You can easily create a field of an array type in migration through: array => true. You can also add other options when you create fields of an array type (Length,default, and so on) Create_table:table_with_arrays do |t| T.integer:int_array,: Array => true # integer[] T.integer:int_array: Array => true: Length => 2 # Smallint[] T.string:string_array,: Array =>

1. Install Ruby, rails, mongrel, and apache2.2 download one-click Ruby install from the rubyforge website and run the installation program. Then Ruby and rubygems are installed. Run the command: Gem install rails-ygem install mongrel-ygem install mongrel_service-y. After

You are a veteran. NET programmer, and has built many Web applications with asp.net. Countless sleepless nights, in order to allow the event-driven model in the ASP.net control lifecycle to execute in the way you want, you painstaking and delve into details. You are proficient in using design patterns such as presentation model, Model View presenter to tier your application to make it easier to test and maintain. You think Ruby on

Today I learned about the latest popular Ruby on Rails, feeling like a code generator linking OracleDatabase, I searched for half a day of information. 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. Change

Release date:Updated on: 2013-01-31 Affected Systems:Ruby on Rails 3.xRuby on Rails 2.xDescription:--------------------------------------------------------------------------------Bugtraq id: 57575CVE (CAN) ID: CVE-2013-0333Ruby on Rails (RoR or Rails) is an open-source Web application framework written in

Description: User resources include user data models and Web pages related to this model.1. The user data model is as follows:2. Using rails built-in scaffolding to generate user resources, execute the following command:$ rails Generate scaffold User name:string email:string #创建模型$ rails Destroy Scaffold User #销毁模型$ bundle EXEC Rake db:migrate #用Rake来迁移数据库, in or

In Ruby rails, if you want to save a property (or read a property), and you want to do something else when you save the property (or read a property)You can use the method that overrides the property's setup or reader.For example, a models table has a field called name, and you want to manipulate the name.Method One,Class Model Method Two,Similar to method one, facilitates After_find and Before_save methods

First, the use ofpassenger-install-nginx-module Installation:Install Passenger:gem installed passenger first, and if you do not have permission, add sudo to the front.Because nginx dynamic module loading is not supported, it is used passenger to compile and install the passenger modifiednginxInstalling Nginx with passenger:　　passenger-install-nginx-module　　按照提示，一步步安装。 In the Nginx configuration file (by default in the/opt/nginx/conf/directory), you can see the following configuration:　　At this p

1, Cloud development environment, CLOUD9 (https://ide.c9.io/). The development environment is pre-installed with most of the software required for rails development, including Ruby, RubyGems, and git, and requires you to install rails yourself.(1) Installing rails: $gem Install rai