NAME

Ordeal::Model::Backend::PlainFile - Cards/decks management via plain files

SYNOPSIS

   use Ordeal::Model;
   use Ordeal::Model::Backend::PlainFile;

   my $backend = Ordeal::Model::Backend::PlainFile->new(
      base_directory => '/path/to/base'
   );
   my $model = Ordeal::Model->new(backend => $backend);

   my $card = $backend->card($card_id); # OR
      $card = $model->get_card($card_id);

   my $deck = $backend->deck($deck_id); # OR
      $deck = $model->get_deck($deck_id);

   my $card_path = $backend->path_for(card => $card_id);
   my $deck_path = $backend->path_for(deck => $deck_id);

   my $ct = $backend->content_type_for('jpg');

DESCRIPTION

This module is a simple file-based backend for Ordeal::Model.

It is based on a directory with the following structure:

   *
   +- cards *
   |        +- card1.jpg
   |        +- card2.jpg
   |        ...
   |
   +- decks *
            +- deck1
            +- deck2
            ...

Cards are PNG, JPG or SVG files.

Decks are either directories with cards inside (or links to cards), or plain text files with the lists.

METHODS

base_directory

   my $dir = $obj->base_directory;
   $obj->base_directory('/path/to/somewhere');

accessor for the base directory where cards and decks are kept.

card

   my $card = $obj->card($id);

get a card by identifier. Returns a Ordeal::Model::Card object.

content_type_for

   my $ct = $obj->content_type_for($extension);

get the Content-Type for the specific extension, supported ones are PNG, JPG or SVG, case-insensitive.

deck

   my $deck = $obj->deck($id);

get a deck by identifier. The order of the cards in the deck is either lexicographic (for directory-based decks) or the order they are found in the plain text file.

decks

   my $decks = $obj->decks;

Get a list of all available decks.

path_for

   my $deck_path = $obj->path_for(decks => $deck_id);
   my $card_path = $obj->path_for(cards => $card_id);

get path to the specific object, based on "base_directory".

BUGS AND LIMITATIONS

The code leverages some experimental Perl features like signatures and postderef; for this reason, at least perl 5.20 will be needed.

Report bugs through GitHub (patches welcome) at https://github.com/polettix/Ordeal-Model.

AUTHOR

Flavio Poletti <polettix@cpan.org>

COPYRIGHT AND LICENSE

Copyright (C) 2018 by Flavio Poletti <polettix@cpan.org>

This module is free software. You can redistribute it and/or modify it under the terms of the Artistic License 2.0.

This program is distributed in the hope that it will be useful, but without any warranty; without even the implied warranty of merchantability or fitness for a particular purpose.