WWW::Scraper::ISBN::TWTenlong_Driver - Search driver for TWTenlong's online catalog.

WWW-Scraper-ISBN-TWTenlong_Driver documentation Contained in the WWW-Scraper-ISBN-TWTenlong_Driver distribution.

Index

Code Index:

NAME

Top

WWW::Scraper::ISBN::TWTenlong_Driver - Search driver for TWTenlong's online catalog.

SYNOPSIS

Top

See parent class documentation (WWW::Scraper::ISBN::Driver)

DESCRIPTION

Top

Searches for book information from the TWTenlong's online catalog.

METHODS

Top

search()

Creates a query string, then passes the appropriate form fields to the Tenlong server.

The returned page should be the correct catalog page for that ISBN. If not the function returns zero and allows the next driver in the chain to have a go. If a valid page is returned, the following fields are returned via the book hash:

  isbn
  title
  author
  pages
  book_link
  image_link
  pubdate
  publisher
  price_list
  price_sell

The book_link and image_link refer back to the Tenlong website.

REQUIRES

Top

Requires the following modules be installed:

WWW::Scraper::ISBN::Driver, WWW::Mechanize, Template::Extract

SEE ALSO

Top

WWW::Scraper::ISBN, WWW::Scraper::ISBN::Record, WWW::Scraper::ISBN::Driver

AUTHOR

Top

Ying-Chieh Liao <ijliao@csie.nctu.edu.tw>

COPYRIGHT

Top

Copyright (C) 2005 Ying-Chieh Liao <ijliao@csie.nctu.edu.tw>

This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

See http://www.perl.com/perl/misc/Artistic.html

WWW-Scraper-ISBN-TWTenlong_Driver documentation Contained in the WWW-Scraper-ISBN-TWTenlong_Driver distribution. 
# ex:ts=8

package WWW::Scraper::ISBN::TWTenlong_Driver;

use strict;
use warnings;

use vars qw($VERSION @ISA);
$VERSION = '0.01';

#--------------------------------------------------------------------------


#--------------------------------------------------------------------------

###########################################################################
#Library Modules                                                          #
###########################################################################

use WWW::Scraper::ISBN::Driver;
use WWW::Mechanize;
use Template::Extract;

use Data::Dumper;

###########################################################################
#Constants                                                                #
###########################################################################

use constant	TENLONG	=> 'http://www.tenlong.com.tw';

#--------------------------------------------------------------------------

###########################################################################
#Inheritence                                                              #
###########################################################################

@ISA = qw(WWW::Scraper::ISBN::Driver);

###########################################################################
#Interface Functions                                                      #
###########################################################################


sub search {
	my $self = shift;
	my $isbn = shift;
	$self->found(0);
	$self->book(undef);

	my $mechanize = WWW::Mechanize->new();
	$mechanize->get(TENLONG);

	$mechanize->submit_form(
		form_name	=> 'BookSearchForm',
		fields		=> {
			fKeyword	=> $isbn,
		},
	);

	# The Search Results page
	my $template = <<END;
ÃöÁä¦r¬d¸ßµ²ªG[% ... %]<a href="[% book %]">
END

	my $extract = Template::Extract->new;
	my $data = $extract->extract($template, $mechanize->content());

	return $self->handler("Could not extract data from TWTenlong result page.")
		unless(defined $data);

	my $book = $data->{book};
	$mechanize->get($book);

	$template = <<END;
<!-- InstanceBeginEditable name="Edit1" -->[% ... %]
<font size="4"><b>[% title %]</b>[% ... %]
&nbsp;by [% author %]</td>[% ... %]
<div align="center"><img src="[% image_link %]"[% ... %]
ISBN :[% ... %]&nbsp;[% isbn %]</td>[% ... %]
¥Xª©°Ó :[% ... %]&nbsp;[% publisher %]</td>[% ... %]
¥Xª©¤é´Á :[% ... %]&nbsp;[% pubdate %]</td>[% ... %]
­¶¼Æ :[% ... %]&nbsp;[% pages %]</td>[% ... %]
©w»ù :[% ... %]">[% price_list %]</font>[% ... %]
°â»ù :[% ... %]">[% price_sell %]</font>
END

	$data = $extract->extract($template, $mechanize->content());

	return $self->handler("Could not extract data from TWTenlong result page.")
		unless(defined $data);

	my $bk = {
		'isbn'		=> $data->{isbn},
		'title'		=> $data->{title},
		'author'	=> $data->{author},
		'pages'		=> $data->{pages},
		'book_link'	=> TENLONG.$book,
		'image_link'	=> TENLONG."/BookSearch/".$data->{image_link},
		'pubdate'	=> $data->{pubdate},
		'publisher'	=> $data->{publisher},
		'price_list'	=> $data->{price_list},
		'price_sell'	=> $data->{price_sell},
	};

	$self->book($bk);
	$self->found(1);
	return $self->book;
}

1;
__END__