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Ruby On Rails Seminar Basis Softexpo Feb2010

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Introduction to RoR: A beautiful framework for today’s web. Presented By Code71 Bangladesh Ltd. Organized by BASIS
Preview ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Background of RoR ,[object Object],[object Object],[object Object],[object Object],[object Object]
Background of RoR ,[object Object],[object Object],[object Object],[object Object]
Why Ruby on Rails? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Why Ruby on Rails? Contd. ,[object Object],[object Object],[object Object],[object Object]
Cons of Ruby on Rails ,[object Object],[object Object],[object Object]
Delivering Business Values ,[object Object],[object Object],[object Object],[object Object]
  Delivering Business Values ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Rails is Agile ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
  Delivering Business Values ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Great user quotes ,[object Object],[object Object],[object Object],[object Object],[object Object]
Great user quotes -contd. ,[object Object],[object Object],[object Object],[object Object],[object Object]
Great user quotes -contd. ,[object Object],[object Object],[object Object],[object Object],[object Object]
Great user quotes-contd. ,[object Object],[object Object]
Great sites built on Rails(Contd.) ,[object Object],[object Object]
Great sites built on Rails(Contd.) ,[object Object],[object Object]
Great sites built on Rails(Contd.) ,[object Object],[object Object]
Great sites built on Rails(Contd.) ,[object Object],[object Object]
Great sites built on Rails(Contd.) ,[object Object],[object Object]
Great sites built on Rails(Contd.) ,[object Object],[object Object]
Great sites built on Rails(Contd.) ,[object Object],[object Object]
[object Object]
MVC  
Rails and MVC  
Directory structure in rails: ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Routes ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Routes ,[object Object],[object Object],[object Object]
Sample Controller, Action & View ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Sample Request & Response ,[object Object],[object Object],[object Object],[object Object]
What is migration and why? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Understanding Migration Script ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Understanding Migration Script ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
ActiveRecord ,[object Object],[object Object],[object Object],[object Object]
ActiveRecord contd. ,[object Object],[object Object],[object Object],[object Object],[object Object]
ActiveRecord Contd. ,[object Object],[object Object],[object Object],[object Object],Class Name Table Name Class Name Table Name Order orders Person people TaxAgency tax_agencies Datum data Batch batches Quantity quantities Diagnosis diagnoses LineItem line_items
ActiveRecord Contd. ,[object Object],[object Object],[object Object],[object Object]
ActiveRecord Contd. ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Users id integer first_name string last_name string user_name string password string
ActiveRecord Contd. ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
ActiveRecord Contd. ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
ActiveRecord Contd. ,[object Object],[object Object],[object Object]
ActiveRecord associations ,[object Object],[object Object],[object Object],[object Object],[object Object],Class A Class B Foreign Keys Mapping class User has_one :address end class Address belongs_to :user end addresses.user_id One user maps to zero or one address class Company has_many :users end class User belongs_to :company end users.company_id One company maps to zero or more user s class Role has_and_belongs_to_many :users end class User has_and_belongs_to_many :roles end roles_users.role_id roles_users.user_id Any number of role s maps to any number of user s
ActiveRecord Validations ,[object Object],[object Object],[object Object]
ActiveRecord Validation Helpers ,[object Object],[object Object],[object Object],[object Object]
ActiveRecord Callbacks ,[object Object]
ActiveRecord Callbacks Contd. ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
[object Object]
ActionController ,[object Object],[object Object],[object Object],[object Object],[object Object]
ActionController Contd. ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
ActionController Contd. ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
ActionController Contd. ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Templates ,[object Object],[object Object],[object Object],[object Object],[object Object]
Helpers ,[object Object],[object Object],[object Object],[object Object]
Helpers Contd. ,[object Object],[object Object],[object Object],[object Object]
Helper Contd. ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Form ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Advanced Form(form_for) Contd. ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Handling errors in form ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Ajax ,[object Object],[object Object],[object Object],[object Object]
Ajax ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Ajax ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Ajax ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Ajax ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Ajax ,[object Object],[object Object],[object Object],[object Object]
Ajax ,[object Object],RJS is Ruby code that generates JavaScript code
Ajax ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Ajax ,[object Object],Controller.rb: def alert_with_rjs end Views/controller/alert_with_rjs.rjs page.alert &quot;Hello from RJS file&quot; <%= link_to_remote &quot;Alert with RJS&quot;, :url => { :action => &quot;alert_with_rjs&quot; } %>
Ajax ,[object Object],<div id=&quot;my_div&quot; class=&quot;green box&quot;>DIV</div> page[:my_div].show Generates javascript $('my_div').show();
Ajax ,[object Object],replace_html replaces the contents of an element (accessed as innerHTML) replace replaces the whole element, including its start and end tags (accessed as outerHTML)
Ajax ,[object Object],replace_html.rjs page[:my_div].replace_html &quot;New Text“ replace.rjs : page[:my_div].replace &quot;New Text&quot;
Ajax ,[object Object],replace_html replace Original <body> <div id=&quot;my_div&quot;> DIV </div> </body> <body> <div id=&quot;my_div&quot;> DIV </div> </body> RJS page[:my_div].replace_html &quot;New Text&quot; page[:my_div].replace &quot;New Text&quot; Result <body> <div id=&quot;my_div&quot;> New Text </div> </body> <body> New Text </body>
Logger ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Testing ,[object Object],[object Object],[object Object],[object Object]
Testing ,[object Object],[object Object],[object Object],[object Object],[object Object]
Testing ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Unit test example ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Assertions used in unit testing ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Functional test example ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Functional test assertions ,[object Object],[object Object],[object Object]
Gem/Plugin ,[object Object],[object Object]
ActiveSupport ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Future of ROR-Rails 3 ,[object Object],[object Object],[object Object],[object Object],[object Object]
Future of ROR-Rails 3 ,[object Object],[object Object],[object Object]
Future of Rails-Rails 3 ,[object Object]
Demo ,[object Object]
Demo – Live rails application ,[object Object],[object Object]
Ruby on Rails ,[object Object],[object Object],[object Object]
Ruby on Rails ,[object Object]
Presenters ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Ruby on Rails ,[object Object]

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Ruby On Rails Seminar Basis Softexpo Feb2010

  • 1. Introduction to RoR: A beautiful framework for today’s web. Presented By Code71 Bangladesh Ltd. Organized by BASIS
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Notas do Editor

  1. source: http://www.infoq.com/articles/Netter-on-Rails http://docs.google.com/viewer?url=https://koshevoy.com/presentations/business_rails.pdf
  2. Discuss about the dynamically generated accessor methods because of association.
  3. There are 20 callbacks. 18 are before/after pairs, 2 are after_find and after_initialize
  4. 2 ways to define callback
  5. 1 :multipart - If set to true, the enctype is set to &amp;quot;multipart/form-data&amp;quot;. 2 :method - The method to use when submitting the form, usually either &amp;quot;get&amp;quot; or &amp;quot;post&amp;quot;. If &amp;quot;put&amp;quot;, &amp;quot;delete&amp;quot;, or another verb is used, a hidden input with name _method is added to simulate the verb over post. 3 A list of parameters to feed to the URL the form will be posted to.