how to debug rails

Because the system was reinstalled, we tried to use rvm to install and manage Ruby and rails and record the installation process. Install curl first Shell code $ Sudo apt-Get install curl Because the rvm Installation File is obtained from GitHub through git, a local git is also required. I installed it through build, you can also install the SDK directly from APT using the following command. Shell code $ Sudo apt-Get install Git-core Instal

This is a simple RBAC authorization system. In fact, it is not simple, but everything becomes very easy under the world-famous rails framework. Of course, we need to trust the two plug-ins we will use later. Let's talk about our project. This is a wiki-like website. You can say that it is a simple version. Its development code has been set as wiki! The project requirement is also very simple. Users can publish things after registration. However, this

This article is original. Reprinted Please note: Author: Utensil Blog: http://blog.csdn.net/utensil/ Email: utensilcandel@gmail.com In the past two days, the previous blog website based on XML and PHP has been transplanted to MySQL and ror to overcome two major difficulties in learning ror: One is that most of the materials currently talk about the practices in rails 1.x, because 2.x interrupts a lot of backward compatibility (especially the dynamic

Previous Article: The Most Beautiful MVC, the orm solution was originally elsewhere-Ruby on Rails The emergence of rails has a positive impact on the current spring + hibernate architecture. It is good to have an impact. Otherwise, ejb2 and struts are still integrated.This article describes the advantages and disadvantages of hibernate3.0 (H3) and rails active re

I recently created a new rails project and tried test driven development. So I wrote a few tests, the following error is reported when rake is used to call the test or directly execute the ruby test program. Undefined method 'use _ transactional_fixtures =' It's really amazing. I tried to check MySQL and check that there is no problem with the checklist type (InnoDB). I further checked that my testcase was not actually injected with

Today is Monday, I went to the new company on the 14th day, today continue Linux under the configuration of the Ruby and rails environment variables.The first problem isMainly see ubuntu under Install rbenv,Ruby,rails development environment,　　http://blog.chinaunix.net/uid-7915607-id-3961698.htm L　　Reference rbenv+ruby-build managing Rubyhttp://segmentfault.com/a/1190000000366488The problem that follows is

Install RubySince the ruby version of the APT Package Manager in Ubuntu is too old, consider compiling the installation from the source code. Here is an example of installing ruby2.3.0:sudo Install build-essential zlib1g-dev libssl-dev libreadline6-dev libyaml-/tmpwget HTTPS://cache.ruby-lang.org/pub/ruby/2.3/ruby-2.3.0.tar.gztar -xvzf ruby-2.3 . 0. Tar . GZ CD ruby-2.3.0/. /ConfiguremakesudomakeinstallAfter the installation is complete, we can view its version:$ ruby-2.3. 0p0 (-53290) [I686-lin

. The latest large distributed framework is WEB services. WEB services technology allows applications to communicate with each other in a platform-independent or programming language-independent way (see Resources). WEB service standards are also threatened by the complexity demon, but the alternative strategy called REST promises a simpler approach. This article describes how to add RESTful Web services to Ruby on Rails and invoke services from Ruby

1. Ruby and Rails must be installed successfully 2. Start building the first Web program with the following commands: C:/>MD Rubydev C:/>CD Rubydev c:/rubydev>rails-d MySQL A It is worth noting that the original command to establish the program should be: rails one, but if you follow this command, you will get an error: "No such file to load-sqlite3". It is esti

As a good programmer, in addition to writing a large number of programs, creating a large number of databases is inevitable. In the past few years, the author has created and managed a large number of MySQL databases, in the process used a variety of tools to manage to make its process simpler, such as the preferred graphical management tool phpMyAdmin, as well as the command-line based MySQL Clent, they are very useful. However, in the author's mind and body always feel that we are a programmer

Ruby on Rails is a software package for writing network applications. It's based on a computer software language, Ruby, Provides powerful framework support for program developers. You can write first-class networking software with less code and a lot more time than before. The more famous community sites 43things.com, odeo.com and basecamphq.com are using Ruby on Rails to write. The guiding principle of Ru

Integration of rails and Java EE The following is an introduction to the integration of rails and Java EE on the GlassFish v3. GlassFish V3 is the next version of GlassFish V2, focusing on modularity and making it possible to run containers and modules that are not Java EE. Here is a detailed description of the details: 1. Using JRuby 1.1 (Install rails), foll

Recently wrote a blog system practice practiced hand, encountered a problem, the user to add comments to send Ajax requests, but rails in Ajax and Python is not quite the same, Python Ajax is implemented with Js,jquery and rails is not the same, In this record, study for a long time finally figured out a littleTell the framework that we want to send AJAX requestsIn the framework of

Images can be said to be a critical part of any application. From social networks to a simple bug tracker, images play an important role. Managing images, however, is not an easy task and requires a lot of time and energy to plan ahead. This article demonstrates how to achieve this goal in rail. How do you handle your images and create multiple versions in the background? How to improve the performance of the page by compressing the image without compromising the image quality? These are the on

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 Ruby. It is

Release date:Updated on: Affected Systems:Ruby on Rails 3.xRuby on Rails 2.xRuby on Rails 1.xDescription:--------------------------------------------------------------------------------Bugtraq id: 54958Cve id: CVE-2012-3464 Ruby on Rails (RoR or Rails) is an open-source We

Ruby $ sudoapt-getinstallrubyruby-devirblibopenssl-rubygem $ sudoapt-getinstallrubygems $ vi ~ /. BashrcexportPATH = "$ PATH":/var/lib/gems/1.8/bin $ source Install Ruby, Rails, and Passenger in Ubuntu Ruby $ Sudo apt-get install ruby-dev irb libopenssl-ruby Gem $ Sudo apt-get install rubygems$ Vi ~ /. Bashrc Export PATH = "$ PATH":/var/lib/gems/1.8/bin $ Source ~ /. Bashrc Rails $ Sudo gem install

Getting started with image processing in Ruby on Rails, rubyrails Images can be said to be a vital part of any application. From social networks to a simple Bug tracker, images play an important role. However, managing images is not an easy task. It takes a lot of time and effort to plan images in advance. This article demonstrates how to achieve this in Rail. How to process your images and create multiple versions in the background? How to Improve pa

Details about the association between models in ruby on rails: rubyrails Preface:Before learning model Association, remember the following points:1. Link. Both ends must be written. Otherwise, errors that beginners cannot understand may occur. It is also very beneficial to understand the code.2. The model name is singular and the controller is plural.3. blong_to must be followed by a singular number and be in lowercase. Has_many must be followed by a

1. Prepare the library used for installation $ Sudo apt-Get install GCC g ++ build-essential libssl-dev libreadline5-dev zlib1g-dev Linux-headers-generic 2. Download ruby1.9.2 source code compilation and Installation $ Wget ftp://ftp.ruby-lang.org//pub/ruby/1.9/ruby-1.9.2-p0.tar.gz (If you cannot download, you can choose: http://ftp.ruby-lang.org/pub/ruby/1.9/ruby-1.9.2-p0.tar.bz2, http://ftp.ruby-lang.org/pub/ruby/1.9/ruby-1.9.2-p0.zip) $ Tar-xvzf ruby-1.9.2-p0.tar.gz $ CD ruby-