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
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
Tutorial on Ruby on Rails to implement the most basic user registration and login functions, rubyrails
It is very convenient to implement the user registration and login functions in Rails. For example, you can use the Devise class to implement the complete function of the gem extension package. You can also use the has_secure_password that comes with
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 article is not an article about NodeJS and Ruby on Rails. It only describes the reasons behind the thinking and decision-making in our decision-making process. The two frameworks are both excellent and both of them are well designed. This is why some of our modules are still running on NodeJS.
I am a big fan of NodeJs. I think this is a very exciting technology and I believe it will become more and mor
Statement: This article is not an article about nodejs and Ruby on Rails. It only describes the reasons behind the thinking and decision-making in our decision-making process. The two frameworks are both excellent and both of them are well designed. This is why some of our modules are still running on nodejs.
I am a big fan of nodejs. I think this is a very exciting technology and I believe it will become m
://ftp.ruby-lang.org/pub/ruby/1.9/ruby-1.9.3-p0.tar.gz
Tar xzvf ruby-1.9.3-p0.tar.gz
CD ruby-1.9.3-p0
./configure--prefix=/usr/local--enable-shared--disable-install-doc--with-opt-dir=/usr/local/lib
Make
Make install
Vi. Upgrading the Gem and installing Rai
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
In Ruby on Rails(http://www.maiziedu.com/course/ruby-px/) , many rails Programmers often forget to consider performance issues, which can lead to slow website speeds, a spike in memory usage,and frequent reboots ofApache , so you'll need to optimize rails performance. The s
According to "Ruby on Rails" and I learned the route map, we know that can be accessed GET /posts/ :id (. :format ) to display specific objects.1. Modify the actionModify the APP/CONTROLLERS/POSTS_CONTROLLER.RB show this action. Here's a puzzle, what if I get the parameters inside the URL?can be accessed via the params built-in variable! As follows: def show @post = Post.find (Params[:id]) end2. Modify
inheriting the virtual class, and then connect different databases. This is achieved by distributing the models to a different database.
In this project, there are two abstract Class model corresponding to the application database, and the log library respectively. These two abstract Class model are:
Ruby Code
-Speciesschemamodel
-Loggingmodel
and their corresponding databases can be found in the definition of DATABASE.YML, respectively
Java co
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
Ruby on Rails is a Web application that enables you to develop, deploy, and maintain
ProgramA simple framework.
Of course, all web frameworks share the same goal. What makes rails so different? We can answer this question in several ways.
First, look at the architecture. In the past, many developers used the MVC Architecture in rigorous web applications. The
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
Configure Ruby on Rails in CentOS and deploy RedmineGitMake sure that the dependent packages are installed:[Plain] view plaincopy
Yuminstallcurl
Yuminstallcurl-devel
Yuminstallzlib-devel
Yuminstallopenssl-devel
Yuminstallperl
Yuminstallcpio
Yuminstallexpat-devel
Yuminstallgettext-devel
Download the git package and compile and install it:
[Plain] view plaincopy
Wgethttp: // www.codemonkey.org. u
Recently, many people have emailed me all the vim packages. Download is provided below. You just need to download them. You don't have to send me any more emails. Of course, you are welcome to leave a message on my blog.
Now vim-Ruby is installed. Of course, you need to install it yourself. A simple command is provided below Ubuntu:Sudo apt-Get install vim-RubyHowever, it seems that if your vim version is 7.0, Ru
Ruby on rails gem install pg cannot be installed, rubyrails
gem install pg -v '0.18.2'Building native extensions. This could take a while...ERROR: Error installing pg: ERROR: Failed to build gem native extension. current directory: /Users/bevan/.rvm/gems/ruby-2.3.0/gems/pg-0.18.2/ext/Users/bevan/.rvm/rubies/ruby
Rails has a built-in Log function, or, more accurately, Rails exposes the Logger object, which can be used in all Rails programs.
Logger is a simple Log framework transplanted from ruby (you can type ri Logger in the ruby command line to view the documentation of the stand
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