Contributing To Rails By Plugin Gem

Contributing to Rails

with plugins or gems

Richard Huang

www.ekohe.comWeb Development & Graphic DesignChina Ruby on Rails Development - Rails Consulting - Rails Services - Merb - Offshore Web Development

AgendaTesting

Plugins

Contribute

Why use plugins or gemsComponent

Robust

Multiple choices

Why write a plugin or gemShare your ideas

Learn a lot

Make your code better

Plugin

Read the guides first

http://guides.rubyonrails.org/plugins.html

Read other people’s plugins

Just do it

Plugin structure

Executed when plugin loaded

Executed when plugin installed

Executed when plugin destroyed

Rake task added to rails rake load path

Logic codes of your plugin

Test codes of your plugin

Define plugin rake tasks

Plugin structure

Plugin logic codes

Textile README

require ‘bullet’

require ‘bulletware’reqire

‘bullet/association’……

Rspec to test plugins

Testing – the more, the better

Tests are documents

Tests make your code robust

Tests enable good communication between you and contributors

Autotest

autotest

autospec

Testing ActiveRecord

Use sqlite3 (memory)

Create and drop table each time

Silence your migration

Adding methods

class methods and instance methods

Changing method behavior

alias_method

Hack with different rails versions

Implementations are different in different rails versions

Configure your plugin

Enable or disable plugin

Lazy loading

autoload

Reuse logic

Similar to writing rails app

–Model

–Controller

–Helper

–Task

README

Let others know what you are doing

Rdoc, Textile or Markdown

An example is better

Easier to maintain

Easier to upgrade

Includes dependencies automatically

Can use without rails

Gem tool -- Jeweler

Defining your gem

Bumping gem version

Releasing gem

Adding gem rake

Rails does not load gem rake

Load it yourself

Adding executable to gem

Using optparse to get input

Defining executable in gemspec

Contribute

Write down your ideas

Share your codes (rubyforge, github, gemcutter, etc.)

Tell others what you do

Use it and improve it

Contribute

Don’t be afraid of reinventing the wheel

Don’t be afraid of ugly code

Don’t be afraid of bugs

To be a better contributor

Read other people’s plugins

http://github.com/flyerhzm/monitor

Thank you

Website: http://www.huangzhimin.com

Github: http://github.com/flyerhzm

Contributing To Rails By Plugin Gem

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