://mirrors.163.com/ubuntu/precise-backports Main restricted Universe MULTIVERSEDEB-SRC
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Explore some methods to optimize Ruby on Rails performance, rubyrails
1. There are two reasons for slowing down your Rails application:
Ruby and Rails should not be used as the preferred choice. (I used Ruby and
caching layer must handle the full result set rather than a single database row. Processing a complete set of results is often problematic, and it is almost impossible without deep logic to support the application. For this reason, the focus of the Cachedmodel is placed on the cache of a single model object and only the query that returns a single row of results is accelerated.Listing 11. Using Cachedmodel
Class Cause
Most Rails applica
download and install rails from a remote server.Open command Line window (cmd), enter execute command gem install rails--remote or gem install rails--include-dependencies.Note: After you install Ruby, RubyGems is installed by default, and you can view it with the following commands, such as:Download RubyGemshttps://ru
code, and can only develop simple applications. But as praise for rails continues to emerge (often from trusted sources), a more cautious task is to understand what Rails can do and bring its ideas back to the Java platform. In this article, you'll explore the core features (that is, the secrets) that bring great efficiencies to Rails.
packages, simple and reliable uninstall, query mechanism, can query local and remote server package information, can maintain a package of different versions, web-based viewing interface, can view your installed gem information.
From the official download RubyGems, take the zip version for example, unpack the compressed package, from the CMD prompt window into the setup.rb directory, run Ruby SETUP.RB can
If the reader has developed a rails based application, but there is a lot of confusion about the data transfer between MVC, congratulations, this article is about summarizing the methods and techniques of the rails data transfer. Ruby on Rails 3 (collectively, rails 3) is th
neat and exception.A very effective solution is to enforce type checking and assertions for some important types of parameters, especially API. For example, on Airbnb, we use a validation gem to detect the type of all required variables in code, similar to assertions like "Validate Count Is_a Integer".Second, many people are ActiveRecord smattering on the Ruby on Rails
We are preparing to build a ruby development environment because we are interested in Ruby recently. Feel the power of Ruby. Some problems have been encountered during the environment setup process. We have recorded the problems in the following article and offered our solutions.
Before getting started, I am using the environment
.zip. Save the downloaded file to the same directory (D:/RoR ).
Note that you do not need to decompress the compressed file.
C. Step 3: Install the Rails plug-in package
Open the command line window, go to the D:/RoR directory, and run the gem install rails command to complete the installation.
Build a development environment in Linux
This section describes how to build an RoR development environment in Lin
No exception. Like all other open-source projects, if you want to enter the Ruby on Rails world, you will find very difficult, rarely documented, and scattered,The downloaded file lacks basic instructions. My personal experience is a typical example. If you don't talk nonsense, let's start with the following: 1. installation environment
it is still feasible to use it as a website ...... The second part is "buiild an application ...... Let me see a lot of details ...... The tutorial is very easy to read ...... Imagine a customer asking for a shopping website ...... From the user requirement analysis, the program passes the test ...... The tutorial not only shows how to use Ruby on Rails to build websites, but also shows the whole process a
-standing conventions. David made very philosophical decisions and strictly followed them throughout the framework. Core Ideas distributed across Rails include:
◆ Seamless integration: Rails uses the best features of the Ruby language intelligently. It extends Ruby, but it is hard to tell where
minimal Web application by running less than six commands and editing a file (database.yml).
Rails specializes in web site development, and most Web sites have been built with Struts, Tapestry, or other technologies. When Ruby is used, it is basically a development practice that joins with the Java platform.
With Ruby
Install Ruby, Rails runtime environment, and rubyrails quickly and correctly
How to quickly and correctly install Ruby and Rails runtime Environments
For new entry-level developers, installing Ruby, Ruby Gems, and
The production and Running Environments recommended by Ruby on Rails are Linux/FreeBSD/Unix, that is, UNIX operating systems. They use Lighttpd + fcgi solutions. I will take the Linux operating system, Lighttpd + fcgi, MySQL database as an example, from
Source code Compilation and installation start. Before installation, ensure that the GCC compiler has been ins
the dependencies in the gemfile are feasible.
then in the Save directory will appear named Blog folder, and contains some auto-generated files:
Note:
This step is likely to occur because of the implementation of bundles:gem::installererror:the ' json ' native Gem requires installed build tools ...
I recently did not find any tutorials for getting started on Ruby on Rails. The others are all download of e-books, and the existing notes are just the most basic.
Or some configuration tutorials.
I read some information in practical rails social networking sites Ruby on RAL
, describes various methods for installing the IBM_DB driver, and uses the Rails migration of DB2.
Introduction
Ruby on Rails was released in 2004 and has now quickly become one of the most popular frameworks in Web application development. This open-source project, also known as Rails or RoR, adopts the Model-View-Con
it? Which one do you not like?The Spring framework supports struts and JSF integration.4. What is the future of your framework? What changes will be convenient for user development? Will you support Ajax in the native way? Are you planning to support it?Spring MVC: simplifies JSP labels. More MVC configuration schemas. COC-style default controller, URL ing, view, learn the advantages of rails and stripes. Enhanced Data Binding and verification (fan b
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