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Introduction to rails
1.
Introduction to Web
Development Using Rails Chhorn Chamnap 4 August 2012
2.
Who Am I? ●
Software Engineer from Yoolk Inc. ● The author of the gem 'active_record_uuid' ● Blog: http://chamnap.github.com/ ● Twitter: @chamnap ● Email: chamnapchhorn@gmail.com
3.
What is Rails?
4.
+
=
5.
Websites on Rails
6.
Companies using Rails
7.
Version History
8.
The Framework ●
Convention over Configuration (CoC) ● Don't Repeat Yourself (DRY) ● Model View Controller (MVC)
9.
The Framework (MVC)
10.
11.
ActiveRecord ●
Object Relational Mapping (ORM) ● Class to Table, Object to Row ● CRUD simple ● Database Agnostic
12.
ActiveRecord::Base
13.
Validation
14.
has_one
15.
has_many
16.
belongs_to
17.
has_many :through
18.
Associations
19.
Fat Models
20.
21.
ActionController ●
Separation of business logic and presentation ● Ideally there should be no logic in the view
22.
ActionController
23.
24.
ActionView
25.
action.mimetype.renderer
● show.html.erb ● index.rss.builder ● edit.iphone.haml
26.
Live Demo
27.
Questions?
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