treehouse ruby on rails

Ruby means "Ruby", while Ruby on Rails is the ruby that just pulled out of the mine and lie on the rails. Ror (Ruby on Rails) is a web deve

Rails calls the Java method XML sit-ups ). Rails is a complete, open-source web development framework with more happiness and lessCode. The entire framework runs through the dry (do not repeat) principle. For example, after a database table is defined, the class name and object attribute name are automatically determined. Friends who have used hibernate know what I'm talking about (You may say XDoclet,

presentation layer is rendered by the browser The logical layer manipulates the data from the server side and goes to the presentation layer The data layer is responsible for storing the data. 6-tier architectureIf you divide it further, you get a 6-tier architecture, such as The presentation layer is divided into the client layer and the presentation logic layer The client layer is responsible for rendering the display page Indicates that the logical layer generat

The presentation layer is rendered by the browser The logical layer manipulates the data from the server side and goes to the presentation layer The data layer is responsible for storing the data. 6-tier architectureAssuming a further cut, you get a 6-tier architecture, such as The presentation layer is divided into the client layer and the presentation logic layer The client layer is responsible for rendering the display page Indicates that the logical layer g

Rack is a framework between the Ruby server and the rack application, Rails,sinatra is built on rack and belongs to the rack application. Rack provides a standard interface for interacting with the server. The standard rack program is an object that responds to call, can be an object, a Proc, a lambda, or even method, which receives the env parameter (the Environment object) and returns an array that inclu

The three components of devise, cancan, and rolify combine to create a complete and powerful user rights model. Devise introduction, responsible for user registration, login, exit, retrieve password and other operations. Detail reference devise on GitHub Cancan, which is responsible for role creation, authorization of roles, displaying elements in the page based on authorization, and throwing exceptions when the model is out of authorization. Detail reference rolify on GitHub Ro

This is to setup a developement environment for Ruby 1.87 and rails 2.2.3 on Ubuntu 10.04 (LUCID ).[Sourcecode Language = "bash"]# Make sure Ubuntu is up to date$ Sudo apt-Get update$ Sudo apt-Get dist-Upgrade# Install Ruby$ Sudo apt-Get install ruby1.8-dev ruby1.8 ri1.8 rdoc1.8 irb1.8 libreadline-ruby1.8 libruby1.8 libopenssl-

Installation configuration IBM DB2 9 PureXML This series of articles describes how to use XForms, IBM DB2 PureXML, and Ruby to simplify the development of WEB applications, divided into four parts, this is the first part. This series of articles will develop a fictional application to manage outpatient information for a small hospital. You'll see the power of each technology, and you'll see how to combine it. The first part will explain how XForms, D

Label: Queried the experience of the great God Http://stackoverflow.com/questions/19078044/disable-activerecord-for-rails-4 Http://stackoverflow.com/questions/821251/how-to-configure-ruby-on-rails-with-no-database The one I liked the most was the way I used it. If you is creating a new application, you can use-O to skip activerecord:rails new My_app-O for existin

Recently wanted to get an Android app that has access to the Internet, because it's fast so it uses Ruby on Rails to provide HTTP resources. This information is still relatively small, so the attempt to record the process.1 building Web application with Ruby on Rails1.1 New Web ApplicationCD Test1.2 Generate productRails Generate Scaffold Product reference:string