[Rails] Information

Youtube

• 葉早彬 - Rails teach

Read More

[Ruby] Ruby online Resource

Ruby Environment settings

• Editor（RecommandSublime Text）
• Ruby on Rails 環境
  • Mac user online - tutor：Mac OS X 上配置 Ruby on Rails 開發環境
  • Linux user online - tutor：Linux 上配置 Ruby on Rails 開發環境
  • Windows user install VirtulBox, and Download virtual image mount into VirtualBox.

Ruby

• irb = interactive Ruby

library

• Standard library - stdlib
• Extend library - gem
  

  By using require to include library
  Ex: require 'open-uri'
  

Ruby Dictionary

• Help and documentation for the Ruby programming language.

Reference:

• Learn Ruby
• Got 15 minutes? Give Ruby a shot right now!

Ｇame

• Using game to learn Ruby

Online Tutor

• Ruby on Rails Tutorial

Read More

[Ruby on Rails] Create a first program "Hello World " at the views folder

[Ruby on Rails] Create a first program "Hello World " at the views folder



1. Go to app/controllers



2. Edit gedit blog_controller.rb



class BlogController < ApplicationController

    def index

    end

end





Edit gedit    app/views/blog/index.rhtml



hello world my first Ruby on Rails





3. Open Browser type :   http://0.0.0.0:3000/blog



Reference:

• 
  Ruby on Rails demo

Read More

[Ruby on Rails] Learning Process

1. [Ruby on Rails] Create a first program "Hello World"
2. [Ruby on Rails] Create a first program "Hello World " at the views folder

Reference:

• Ruby on Rails demo

Read More

[Ruby on Rails] Create a first program "Hello World " at the controller folder

1. Create a control was called blog

script/generate controller blog

2. Go to app/controllers

3. Edit gedit blog_controller.rb

class BlogController < ApplicationController

    def index

        render :text => "Hello World!!"

    end

end


4. Open Browser type :   http://0.0.0.0:3000/blog

Reference:

• Ruby on Rails demo

Read More

[Sqlite3][Ruby on Rails] How to install sqlite3 by using gem install

[Sqlite3][Ruby on Rails] How to install sqlite3 by using gem install

Question :

sudo gem install sqlite3-ruby



Building native extensions.  This could take a while...

ERROR:  Error installing sqlite3-ruby:

    ERROR: Failed to build gem native extension.



        /usr/bin/ruby1.8 extconf.rb

extconf.rb:3:in `require': no such file to load -- mkmf (LoadError)

    from extconf.rb:3





Gem files will remain installed in /usr/lib/ruby/gems/1.8/gems/sqlite3-1.3.9 for inspection.

Results logged to /usr/lib/ruby/gems/1.8/gems/sqlite3-1.3.9/ext/sqlite3/gem_make.out



Solution :



sudo apt-get install ruby-dev



Reference:

• 
  `require': no such file to load — mkmf (LoadError)

Read More

[Ruby on rails] Start script/server error

[Ruby on rails] Start script/server error

Question :

When I want to start the server.

I type script/server

The error like the following

no such file to load -- net/https (RuntimeError)

Solution :

sudo atp-get install libopenssl-ruby1.8

Reference:

• 
  RubyOnRails start server runtime error

Read More

[Rails] How to install specific rails

[Rails] How to install specific rails



gem install rails -v 2.3.18

Reference :

• 
  rails 2.3.8

Read More

[ruby] Bundle Install

[ruby] Bundle Install



1. Create Gemfile



2. Execute "bundle install"



3. Show what package installed

bundle show



 

Read More

[ruby] Install rails

[ruby] Install rails



Prepare :

sudo apt-get install zlib1g-dev



After tar xvf ruby-2.1.1.tar.gz

cd ruby-2.1.1/ruby-source-files/ext/zlib

ruby extconf.rb

sudo make install



Will install zlib

Start :

1. gem install rails --include-dependencies



2. Test rails install successfully

happy@ubuntu:~/Downloads/rubygems-1.8.25$ rails -v

Rails 4.1.0



Reference:

• 
  Can't install Ruby on Rails


• 
  [ruby] How to install ruby in Ubuntu 10.04

Read More

Install RubyGems

[ruby] Install RubyGems

1. Go to http://rubyforge.org/



2. Search RubyGems



3. Download rubygems-1.8.25.tgz from webpage



4. tar xvf rubygems-1.8.25.tgz



5. cd rubygems-1.8.25

ruby setup.rb



6. Display successful message like following

happy@ubuntu:~/Downloads/rubygems-1.8.25$ ruby setup.rb

RubyGems 1.8.25 installed



== 1.8.25/ 2013-01-24



* 6 bug fixes:



  * Added 11627 to setup bin_file location to protect against errors. Fixes #328 by ConradIrwin

  * Specification#ruby_code didn't handle Requirement with multiple

  * Fix error on creating a Version object with a frozen string.

  * Fix incremental index updates

  * Fix missing load_yaml in YAML-related requirement.rb code.

  * Manually backport encoding-aware YAML gemspec





------------------------------------------------------------------------------



RubyGems installed the following executables:

 /home/happy/bin/gem



7. Test gem version, and make sure install gem successfully

happy@ubuntu:~/Downloads/rubygems-1.8.25$ gem -v

1.8.25





 

Read More

[ruby] How to install ruby in Ubuntu 10.04

[ruby] How to install ruby in Ubuntu 10.04

Method 1 :

sudo apt-get install ruby



Method 2 :

1. Install essential package for development

sudo apt-get install build-essential zlib1g-dev



2. Download new and stable of ruby package from https://www.ruby-lang.org/



3. tar xvf ruby-2.1.1.tar.gz



4. Configuration and make install

cd ruby-2.1.1



    Method A :

    ./configure

    make

    make install



    Method B :

    ./configure -prefix=$HOME

    make

    make install



    vim ./.bashrc



    Add following command

    # User specific environment and startup programs

    PATH=$PATH:$HOME/bin

    export PATH

Read More