Scrappy::Session(3pm) | User Contributed Perl Documentation | Scrappy::Session(3pm) |
Scrappy::Session - Scrappy Scraper Session Handling
version 0.94112090
#!/usr/bin/perl use Scrappy::Session; my $session = Scrappy::Session->new; -f 'scraper.sess' ? $session->load('scraper.sess'); $session->write('scraper.sess'); $session->stash('foo' => 'bar'); $session->stash('abc' => [('a'..'z')]);
Scrappy::Session provides YAML-Based session file handling for saving recorded data across multiple execution using the Scrappy framework.
The following is a list of object attributes available with every Scrappy::Session instance.
auto_save
The auto_save attribute is a boolean that determines whether stash data is automatically saved to the session file on update.
my $session = Scrappy::Session->new; $session->load('scraper.sess'); $session->stash('foo' => 'bar'); # turn auto-saving off $session->auto_save(0); $session->stash('foo' => 'bar'); $session->write; # explicit write
file
The file attribute gets/sets the filename of the current session file.
my $session = Scrappy::Session->new; $session->load('scraper.sess'); $session->write('scraper.sess.bak'); $session->file('scraper.sess');
The load method is used to read-in a session file, it returns its data in the structure it was saved-in.
my $session = Scrappy::Session->new; my $data = $session->load('scraper.sess');
The stash method accesses the stash object which is used to store data to be written to the session file.
my $session = Scrappy::Session->new; $session->load('scraper.sess'); $session->stash('foo' => 'bar'); $session->stash('abc' => [('a'..'z')]); $session->stash->{123} = [(1..9)];
The write method is used to write-out a session file, it saves the data stored in the session stash and it returns the data written upon completion.
my $session = Scrappy::Session->new; $session->stash('foo' => 'bar'); $session->stash('abc' => [('a'..'z')]); $session->stash->{123} = [(1..9)]; my $data = $session->write('scraper.sess');
Al Newkirk <awncorp@cpan.org>
This software is copyright (c) 2010 by awncorp.
This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.
2011-07-28 | perl v5.18.2 |