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Rails 2.0 1 Barry Burd [email protected] This slide presentation © 2008 Barry Burd Copyrights for Ruby, Rails and other material are held by their respective owners.

Rails 2 - Drew University for Ruby, Rails and other material are held by their respective owners. Install Ruby and Rails • Ruby -

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  • Rails 2.0

    1

    Barry Burd

    [email protected]

    This slide presentation 2008 Barry Burd

    Copyrights for Ruby, Rails and other material are held by their

    respective owners.

  • Install Ruby and Rails

    Ruby - http://www.ruby-lang.org/en/downloads/

    Rails -

    2008 Barry Burd 2

  • Install SQLite

    http://www.sqlite.org/download.html

    2008 Barry Burd 3

    Copy the uncompressed files to your ruby\bin directory

  • Install SQLite (continued)

    2008 Barry Burd 4

  • Install the Aptana IDE

    You need the Java Runtime -

    http://java.sun.com/javase/downloads/index.jsp

    Aptana - http://www.aptana.com/download/index.php

    2008 Barry Burd 5

  • Install the

    RadRails plugin

    within Aptana

    2008 Barry Burd 6

  • Configure RadRails

    2008 Barry Burd 7

  • Configure RadRails

    2008 Barry Burd 8

  • Configure RadRails

    2008 Barry Burd 9

  • The Aptana IDE

    Based on Eclipse

    View

    Editor

    Part

    Area

    Perspective

    2008 Barry Burd 10

  • Ruby

    Pers

    2008 Barry Burd11

    spective

  • Rails

    Per

    2008 Barry Burd 12

    rspective

  • Data

    Per

    2008 Barry Burd 13

    rspective

  • Debug

    Per

    2008 Barry Burd 14

    rspective

  • Watch a movie...

    http://www.burdbrain.com/RubyOnRails/Rails2.wmv

    2008 Barry Burd 15

  • RadRails Perspective

    2008 Barry Burd 16

  • Create a new Rails Project

    2008 Barry Burd 17

  • Name the project

    2008 Barry Burd18

  • Rails creates

    folders and files

    2008 Barry Burd 19

  • Create a database

    2008 Barry Burd 20

  • Generate a scaffold

    2008 Barry Burd 21

  • Migrate the databaseCreate table(s) and column(s)

    2008 Barry Burd 22

  • Start the projects Web server

    2008 Barry Burd 23

  • Visit the Web servers Welcome page

    2008 Barry Burd 24

  • Visit the list page

    2008 Barry Burd 25

  • Add a new record

    2008 Barry Burd 26

  • 2008 Barry Burd 27

  • Show an existing record

    2008 Barry Burd 28

  • Edit an existing record

    2008 Barry Burd 29

  • Several types

    of fields

    2008 Barry Burd30

  • The Migration FileBookstore\db\migrate\001_create_books.rb

    2008 Barry Burd 31

  • Bookstore\config\database.yml

    2008 Barry Burd 32

  • The Model CodeBookstore\app\models\book.rb

    2008 Barry Burd 33

  • The Controller CodeBookstore\app\controllers\books_controller.rb

    "if the client wants HTML in

    response to this action, just

    respond as we would have

    before, but if the client wants

    XML, return them the list of

    people in XML format." (Rails

    determines the desired

    response format from the

    HTTP Accept header submitted

    2008 Barry Burd 34

    HTTP Accept header submitted

    by the client.)

    Let the instance variable (the attribute) @book be

    the record you get when

    you look for a record

    whose id matches the

    incoming id parameter.

  • The Controller CodeBookstore\app\controllers\books_controller.rb

    2008 Barry Burd 35

  • The Controller CodeBookstore\app\controllers\books_controller.rb

    2008 Barry Burd 36

  • The Controller CodeBookstore\app\controllers\books_controller.rb

    2008 Barry Burd

  • The Index PageBookstore\app\views\books\index.html.erb

    2008 Barry Burd

    View Source

  • View Source

    xml:lang="en" lang="en">

    Books: index

    2008 Barry Burd 39

  • View Source

    Listing books

    Title

    IsbnIsbn

    Ruby on Rails For Dummies

    12233355566622444

    Show

    Edit

  • View Source

    Listing books

    Title

    IsbnIsbn

    Ruby on Rails For Dummies

    12233355566622444

    Show

    Edit

  • The Edit PageBookstore\app\views\books\edit.html.erb

    2008 Barry Burd 42

  • The New PageBookstore\app\views\books\new.html.erb

    2008 Barry Burd 43

  • The Show PageBookstore\app\views\books\show.html.erb

    2008 Barry Burd 44

  • Fine tuning a Web application

    2008 Barry Burd 45

  • Adding validation to the model code

    2008 Barry Burd 46

  • Attempting to create a new record, but...

    2008 Barry Burd 47

  • ...validation errors

    2008 Barry Burd 48

  • The views code takes

    notice of errors

    2008 Barry Burd 49

  • Rails has several validates methods

    50 2008 Barry Burd

  • Relationships between tables

    2008 Barry Burd 51

  • Bookstore\db\migrate\002_create_reviews.rb

    2008 Barry Burd 52

  • Run the most recent migration

    2008 Barry Burd 53

  • Bookstore\app\models\book.rb

    2008 Barry Burd 54

  • Bookstore\app\models\review.rb

    2008 Barry Burd 55

  • The Rails Console

    2008 Barry Burd 56

  • 2008 Barry Burd 57

  • Add code toBookstore\app\views\books\show.html.erb

    2008 Barry Burd 58

  • Add a method toBookstore\app\controllers\books_controller.rb

    2008 Barry Burd 59

  • 2008 Barry Burd 60

  • 2008 Barry Burd 61