treehouse ruby on rails

I mainly use two plug-ins: rinari and Yari. Rinari supports fast jump to multiple files in the rails project. In addition, it provides the grep tool, which I found useful. The shortcut keys are easy to remember. Yari provides an Emacs interface for the RI tool that comes with Ruby, which is compatible with the latest Ruby and easy to operate. You only need to u

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

Ruby on Rails directory structure + app/#控制器, model, view, help method, mail, static resource + bin/#rails脚本 + config/#路由, database + db/ #数据库模式, migration file + lib/ # Expansion Module + log/ #日志 + public/#公共资源 + test/ #单元测试 -config.ru #Rack服务器的程序设置, for starting programs - Gemfile,gemfile.lock #指定Gem依赖, for bundler gem -Rakefile #保存并加载可在命令行中执行的任务, ad

Writing a database management system with Ruby on Rails is very fast. Ruby on Rails has such a high productivity, not only is Ruby's syntax flexible, but it's all a big program thanks to activity records (active record). So what is an activity record? If you explain it in one sentence, it's a framework that maps data t

1. Nginx Installationsudo apt-get install Nginx2. Ruby Installationsudo apt-get install RubyView version Ruby-v3. Rails Installationsudo apt-get install RailsView version Rails-v4. MYSQL InstallationSUDP apt-get Install Mysql-server myusql-clientLog in to MySQLMysql-uroot-pCheck the port occupied by the MySQL serverNET

D:ror directory (the directory is built by me, the reader can freely )Install MySQL for Ruby driver, command line type: Gem install Mysql-2.8.1.gem6. Go to http://download.csdn.net/detail/luoyeyilin/3614807 download Instantrails-2.0-win.zip extract, search under mysql.so,80k size file Copy the mysql.so to the C:\RUBY\LIB\RUBY\SITE_RUBY\1.8\I386-MSVCRT.You can th

recommended that you use a homemade program: Brew Install ImageMagick Now we need a Ruby adapter that connects to the local ImageMagick library. You can use Minimagick, because it is lightweight: # gemfile Gem ' Mini_magick ' Characteristics of Minimagick Before we begin, let's take a look at some of the minimagick features to avoid unnecessary errors. Open the Rails conso

Ruby rails installation process description 1. create a user 2. assign permissions first add a user group: groupadd humou Add User, set the main directory, shell path useradd-g humou-d/home/humou-s/bin/bash-m humoushell path is not set, this user will not be able to log on or directly: useradd-g humou set password passwd humou delete a user: userdel humou corresponding user group will also be deleted to vi

Ruby on Rails internationalization, rubyrails Language-related settings and strings should not be used in views, models, and controllers. The text should be moved to the language file under config/locales. When the tags of the ActiveRecord model need to be translated, the scope of activerecord is used: en: activerecord: models: user: Member attributes: user: name: "Full name" Then User. model_name.

Explain how to use Cucumber in Ruby on Rails, railscucumber Use the @ wip label to mark your unfinished scenarios. These scenarios are not considered and are not marked as test failures. When an unfinished scenario is completed and the function test passes, the @ wip tag should be removed to add the scenario to the test suite.Configure your default configuration file to exclude the scenes marked as @ javasc

ActiveResource in Ruby on Rails When an HTTP response is in a different format (XML and JSON) than an existing one, you need to parse some additional formats to create a common format and use it in the category. The following methods should be implemented in the conventional format: extension, mime_type,Encode and decode. Module ActiveResource module Formats module Extend module CSVFormat extend self def e

Here simply add a few validations, non-empty, minimum length, uniqueModifying a modelModify the App/models/post.rb file as follows:Class Post At this time to run the service, modify/New model, when nothing is filled, can not be submitted, nor error.What's the reason?Because you didn't show the error message.Modify viewsModify the App/views/posts/new.html.erb file as follows:That is, addFor App/views/posts/edit.html.erb.Running the serviceRails S-b 192.168.xxx.xxx-p 3000, add a record, do not fil

Update:An updated version of these instructions for Ubuntu 12.10 (quantal Quetzal) is available here. 1. Install the prerequisites sudo apt-get install openjdk-7-jdk libjpeg62 libwebkitgtk-1.0-0 git-core Although Aptana Studio doesn't officially support openjdk, I 've not encountered any problems, however I 've not done extensive testing. Alternatively, to use the Sun JDK, do the following: sudo apt-get install libjpeg62 libwebkitgtk-1.0-0 git-coresudo add-apt-repository ppa:webupd8team/javasudo