how to debug rails

Using Ruby On Rails on Bluehost: This is intended to be a brief introduction to developing ruby on rails applications on a bluehost account. at the bottom of this article you will find a number of resources to help you learn more about ruby on rails and related information, as well as links to some rails tutorials that

the extremely laborious installation of RDoc,gem install rails --no-ri --no-rdoc 可以跳过。5, because before my computer has been installed apache2, so no longer install Nginx, directly with Apache2 to do the deployment. Nginx Deployment ScenariosThe first is to install the passenger plug-in, passenger is a gem package, the installation command is the gem install passenger, then is prompted to the Apache loading module, restart Apache2.In addition, the de

no environment variable is set, debug_lever = 0 14 // Debug_init = 1 after the debugging level is set 15 Debug_init = 1 ; 16 Return Debug_level; 17 } Int debugthis (INT level ); Int Debugthis ( Int Level) {// Determine whether the system needs to debug this module// Method: Use the level of this module and the debug_variable set by the system. If ( ! (Level Getdebuglevel ())) {Return0;} Return 1 ;} # Define debug

At first, I saw a lot of attractive applications about Ruby on Rails. Like many more eager programmers, I learned Ruby syntax and plunged into the beautiful palace of Rails, experience the sense of accomplishment of rapid Web application development, but I have to always be confused by lack of in-depth understanding of the Ruby language: Why does this class have nothing to do? Why does it work? What does th

/migrate/201200_create_posts.rb" file and see the following. Class Createposts T.timestamps will help us generate created_at and updated_at two fields in the database, and these two fields will automatically be assigned by rails without our manual designation. After you add a post to the interface, open the Log/production.log file and see the following. INSERT into ' posts ' (' category_id ', ' content ', ' created_at ', ' Picture ', ' published

1. The following two reasons are causing your Rails application to slow down: Ruby and rails should not be used as the preferred place for Ruby and rails. (with Ruby and Rails doing a job that's not good for doing) Excessive memory consumption leads to a lot of time for garbage collection.

How to Improve Ruby On Rails Performance 1 Introduction to Introduction It is always said that Rails is so slow that it has become a common issue in the Ruby and Rails communities. However, this statement is not true. As long as you use Rails correctly, it is not difficult to increase the running speed of your applicat

If you've never heard of rails, you're welcome to return from an extraterrestrial trip, and in recent years it's probably the only place that hasn't heard of Ruby on rails. The most compelling thing about Rails is the ability to quickly build a full-featured application and run it. Rails's built-in integrated Prototype.js library for Ajax makes it easy and quick

Build RubyMine + Ruby On Rails + MySQL development environment in Windows I recently took over a mobile phone project. Some problems have been encountered during the environment setup process. We have recorded the problems in the following article and offered our solutions. Development Environment: Windows 2003; JetBrains RubyMine6.3.3 1. download the latest version of ruby(rubyinstaller-2.0.0-p598.exe, the latest version) Official Website: http://rub

The debate On Ruby On Rails in the Java Community is already fierce and there will be no signs of stopping in the future. Rails Supporters praised it for its amazing efficiency, which is about compared with Java development. As a Java programmer, your subconscious reaction is that you do not trust the high efficiency of any publicity, because you may have heard of this before, but you are very disappointed.

In the Rails project, due to late demand changes, you need to add a field in the products database to meet the classification of multi-country commodities:rails g migration add_locale_to_products locale:stringAfter that, normal web app operations are normal, but an exception occurred at the end of the test:rake testPrint out a big lump of error:(, no new fields are seen in the Test.sqlite3 database. The following command is used to force the database

Before you start About this tutorial Ruby on Rails (rails) is a full-stack WEB application framework written in Ruby, and Ruby is a rich, free, extensible, portable, object-oriented scripting language. Rails is very popular among WEB application developers. With it, you can quickly and efficiently develop Web applications and deploy them to any web con

Recently because of an aurora push friend, I started about three or four days of the Rails learning path, the final level is to be able to make most of the functions more easily, and then self-feeling can freely follow the design of rails to think. Because of the growing popularity of programming, I have met more and more non-computer students to start writing code for hobbies, but most of them may be using

Install Ruby on Rails in Ubuntu 15.04 In this article, we will learn how to use rbenv to install Ruby on Rails in Ubuntu 15.04. We chose Ubuntu as the operating system because Ubuntu is an operating system with many packages and complete documents in the Linux release, so I think this is the right choice. If you have not installed the latest Ubuntu, you can start by downloading the iso file. Install Ruby Th

Ten years ago, the WEB application framework, rails founder David Heinemeier Hansson, had recorded a video showing us how to create a blog engine in 15 minutes using Ruby on rails. This video successfully demonstrates the efficiency of Ruby on Rails writing WEB application core functionality through the design of Rails

Ruby on Rails is a suddenly popular framework that acts as a catalyst for the ruby programming language. As Ruby experiences continue to succeed, developers began to seek to integrate their ruby applications with applications written in other languages. Rails provides excellent support for Web Services. This article introduces the Web service in rails, focusing o

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 Rails to do something I was not good) Excessive memory consumption leads to a large amount of time for

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 RALs and thought it was good. I 'd like to write it out and share it with you. First, create a platform $

There is a chance to try rails again, only the original contact is 2, now has become 4, it seems that the installation is now faster than the original. Rails 4 Installation Aimed at installing the RVM Copy Code code as follows: Gem Install Rails If not, it should be: Copy Code code as follows: sudo gem install

This article details how to configure Ruby on Rails development environment in Windows, and hopefully it will help ror beginners. First, download and install Ruby The best choice to install Ruby under Windows is Rubyinstaller (one-click installation package).Download Address: http://rubyforge.org/frs/?group_id=167.We are here to download the newer Rubyinstaller-1.9.3-p0.exe one-button installation package. This installation package contains a number