Post on 16-May-2015
description
Rails advantages and techniques
SATHISH KUMAR MARIAPPAN
Ruby on Rails - it does scale
• Fast, agile development •Framework based on Ruby
INNOPPL Why Ruby On Rails?
INNOPPLFast Development
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• CRUD
• Scaffolding (if you really need to)
• DRY
• AJAX
• acts_as_something
INNOPPL Maintainable
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• Very readable code
• Implemented documentation system (RDOC)
• Tests makes sure you don’t break anything
INNOPPLModel View Controller
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Model View Controller
• Interface to the database• Business Logic goes here• For the DataBase Admin
class User < ActiveRecord::Basehas_many :tasks
end
class Task < ActiveRecord::Basebelongs _to :user
end
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Model View Controller
• Link between DB (model) and User (view)• HTTP / Sessions / Cookies / Post / Get• For the Developer
class TaskController < ApplicationControllerdef index
@tasks = User.find(session[:user_id]).tasks
endend
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Model View Controller
• Web Interface• What the client sees• For the Designer...
<body><% @tasks.each do |task| %>
<div class=’task’><%= task.content %> is <%= task.status
%></div>
<% end %></body>
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Model View Controller
• Link between DB (model) and User (view)• HTTP / Sessions / Cookies / Post / Get• For the Developer
class TaskController < ApplicationControllerdef index
@tasks = User.find(session[:user_id]).tasks
endend
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Test-Driven Development
• Write tests first
• FAIL
• Implement
• SUCCEED
• Clean Up
• Check-In to Version Management
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polymorphism
Rails features
20.minutes.ago1.gigabyte
time_ago_in_words prototype
has_and_belongs_to_many
cache
routes link_to_remote
<%= debug object %>
group_by
find_by_sql
REST
titleizedelegate
INNOPPL CONTACT DETAILS
Sathish Kumar Mariappan Innoppl Technologies E-mail : sathishkumar.m@innoppl.com
INNOPPL Thank You