how to debug rails

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 Rails to cr

This is a creation in Article, where the information may have evolved or changed. "Editor's note" Last year, Express.js library author TJ Holowaychuk moved from node. js to the Go language and published an article to compare the two languages. Now, there are more and more platforms to go to develop, for example, the CSDN research and Development channel last year released Bowery why abandon node. js, to go? So why did the timehop abandon rails to go?

The book repeatedly mentions "where genius" is saying that most so-called geniuses are acquired through repeated deliberate practice.When your practice time reaches 10000 hours,. You will become an expert in this field.Learn how rails is implementing restful Web Service in the near future.I want to design an exercise template for myself and repeat the exercises.The development process is developed using the TDD approach.Practice background:We involve

Ruby on Rails can be installed in two ways. 1. Direct Installation We can download Ruby on Rails from the official website.:Http://rubyonrails.org/ After the download is complete, you can directly install it. It cannot be installed in a path with Chinese characters or it will not run properly. Ii. You can use instant rails to integrate the installation envi

After running rails S, the following error occurs: /. Rvm/gems/ruby-1.9.3-p374/gems/eventmachine-1.0.3/lib/eventmachine. RB: 526: In 'start _ tcp_server ': No acceptor (port is in use or requires root privileges) (runtimeerror) Solution 1: rails S-p4000 enables another port. 4000 can be replaced by any other number. If you do not want to enable other ports, run the second solution: Run: $ PS ax | grep

jquery.ui.menu *= require jquery.ui.progressbar *= require jquery.ui.slider *= require jquery.ui.spinner *= require jquery.ui.tabs *= require jquery.ui.tooltip */Contributingbug reports For bugs in jquery UI itself, head to the jquery UI development center. For bugs in this gem distribution, use the GitHub issue tracker.Setup Thejquery-ui-railsGem shoshould work in Ruby 1.8.7 apps. To run the rake tasks, you need Ruby 1.9 however. git clone git://github.com/joliss/jquery-ui-rails.gitcd jquery-u

Rails comes with a zero-configuration sqlite by default. This feature is OK for development, but cannot be written concurrently. It is not suitable for production. Let's start from scratch. P.S.: deploy postgresql Based on ubuntu server ================ Install postgresql and start it ====================== First install postgresql in ubuntu sudo apt-get install postgresql Then start the postgresql Server sudo /etc/init.d/postgresql-8.4 start The de

1. Basic Configuration When unicorn is configured, there are two cases: preload_app truepreload_app false If preload_app is false, the unicorn master does not pre-load the entire rails app environment, and every worker executes the entire rails app. When preload_app is true, the master of Unicorn loads the rails app environment in advance. In the case of copy_on_

indicate the ing field xx_yy Class main composed_of: xx_yyend Note:Aggregation objects are all value objects. You cannot modify the values in them. Even if you modify them, rails will not write them back to the database, the only modification method is to create another component and assign it to the primary object. Single Table inheritance It is only applicable to the object structure where most values are in the parent class. For the object st

When building a rails Development Environment on Ubuntu, there are always some problems, so I will contribute to the establishment of the environment from start to end. We enabled rails to develop a 400 telephone platform. 1. Install the nodejs Library Sudo apt-Get install nodejs 2. Install GCC, MySQL, and some libraries and update the system to the latest version. Sudo apt-Get updateSudo apt-Get upgradeSu

Https://ruby-china.org/wiki/install_ruby_guideHow to quickly and correctly install Ruby and rails runtime Environments For new entry-level developers, installing Ruby, Ruby gems, and rails running environments may be a problem. This section describes how to quickly install the ruby development environment using a reliable path.The installation method is also applicable to the product environment!System Requ

Preface In routing loading, I roughly introduced how to load the simplest route in rails. In this article, I will introduce how more complex named route and restful-related resources in the rails system are loaded. In order not to repeat too much pen and ink, this article will be carried out on the basis of the previous article. If you find that when reading this article separately, you are a little confus

Original address: http://guides.rubyonrails.org/security.html This guide describes the general security issues in Web applications, as well as how to avoid these problems in rails.　 If you have any questions, please mail author, Heiko Webers, at the {et} rorsecurity.info. After reading this article, you should know: 1. All the responses have been highlighted. 2. The concept of the session in rails, what

Develop an advanced view of the iphone Building views and forms The IPhone and ipod touch make mobile Safari a popular American mobile browser. Although it is more than enough to present a regular web page with Mobile Safari, many web developers have created an application version for the IPhone. This article is part 3rd of the "using Ruby on Rails and Eclipse to develop IPhone apps" series, which describes how to perform actions when users browse t

Liberate RoR: Let Activescaffold to manage data entry page Introduction: Save some time, less headaches, use the Ruby on Rails activescaffold plug-in can create pages that are easier to maintain. Activescaffold can handle all the CRUD (create, read, update, and delete) operations required by the user interface, which saves you more time to focus on more challenging (and more interesting) issues. Writing a web-based data entry UI for a complex applic

: Network Disk DownloadThis is the first book on the Ruby on Rails.The main contents of the book are divided into two parts. In the Build Application section, readers will see an example of a complete online book purchase site. During the presentation, the author truly reproduces a complete iterative development process, giving the reader a firsthand experience of the various problems encountered in real-world application development and how rails can

The title of many questions is the error message recorded in the log after an error. Apache logs are in the/var/log/apache2/directory, Error.log. Of course, there may also be other locations. If you are downloading httpd, compile the installation, it is possible in the/usr/local/apache directory. Nginx's log in the/opt/nginx/log/, is also error.log. It is also possible in other locations, such as the installation directory or the/var/log/nginx/. 1.rails