Wp Manual 12

Web programming lab Prepared by : Badrinath K

Dept of ISE, SJCIT Page 1

12. Build a Rails application to accept book information viz. Accession number, title,

authors, edition and publisher from a web page and store the information in a database

and to search for a book with the title specified by the user and to display the search results

with proper headings.

In windows XP only :

Save InstantRails-2.0-win to C drive and extract it.

Create shortcut on desktop for InstantRails-2.0-win logo

Starting Instant Rails

To start Instant Rails, double-click the Instant Rails icon that you put on the desktop. When you

first start Instant Rails, it will ask you to confirm that it is OK to regenerate the configuration

files. Click on OK. It will now attempt to start both the Apache web server and the MySQL

server. You may get a query from your firewall software asking you to confirm you want these to

be accessible.

It should now show a new window. Two traffic-lights at the top of the window should indicate

that it has started the Apache web server and the MySQL server.



If you click on the Apache/MySQL buttons, you will get a menu enabling you to start/restart

these servers.

To the left of the Apache button, there is another button that has the Instant Rails logo. Clicking

this button reveals a drop-down menu with the following options:

Help Log Files Configure Rails Applications Restart Servers Stop Servers and Exit



Following will open :



Start typing the following in rails prompt :

rails d mysql lab12

cd lab12

mysql u root

create database lab12_development;

create database lab12_test;

create database lab12_production;

use lab12_development;

create table books (id int not null auto_increment, accession_num int not null, title vachar(80)

not null, author varchar(80) not null, edition int not null, publisher varchar(80) not null,

primary key(id));

mysql> exit

ruby script/generate scaffold Book accession_num:int title:string author:string edition:int

publisher:string;

START SERVER :

ruby script/server

URL

http://localhost:3000/books

You can now access your web application by using a browser to visit:

http://localhost:3000/



Type table name: localhost:3000/books

Click New book Link:



In rails prompt press ctrl+c server will stop

Type following command in rails prompt

ruby script/generate controller main

Use the following path to have the program file

C:\Rails\rails_apps\lab12\app\controllers\main_controller.rb

class MainController < ApplicationController

def welcome

@num_books=Book.count

end

def result

@title=params[:title]

@bookz=Book.find(:all, :conditions=>"title=#{@title}")

end

end

Use the following path to save the program file

C:\Rails\rails_apps\lab12\app\views\main

result.rhtml

welcome template for books

entered book title is:

Accession number

Title

Author

Edition

Publisher



Welcome.rhtml

welcome template for books

total number of books=

enter searching book tittle :

Save as type : all files

Encoding : utf-8

Wp Manual 12

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