Koha/Plugins.pm

   1 package Koha::Plugins;
   2
   3 # Copyright 2012 Kyle Hall
   4 #
   5 # This file is part of Koha.
   6 #
   7 # Koha is free software; you can redistribute it and/or modify it
   8 # under the terms of the GNU General Public License as published by
   9 # the Free Software Foundation; either version 3 of the License, or
  10 # (at your option) any later version.
  11 #
  12 # Koha is distributed in the hope that it will be useful, but
  13 # WITHOUT ANY WARRANTY; without even the implied warranty of
  14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  15 # GNU General Public License for more details.
  16 #
  17 # You should have received a copy of the GNU General Public License
  18 # along with Koha; if not, see <http://www.gnu.org/licenses>.
  19
  20 use Modern::Perl;
  21
  22 use Module::Load::Conditional qw(can_load);
  23 use Module::Pluggable search_path => ['Koha::Plugin'], except => qr/::Edifact(|::Line|::Message|::Order|::Segment|::Transport)$/;
  24
  25 use C4::Context;
  26 use C4::Output;
  27
  28 BEGIN {
  29     push @INC, C4::Context->config("pluginsdir");
  30 }
  31
  32 =head1 NAME
  33
  34 Koha::Plugins - Module for loading and managing plugins.
  35
  36 =cut
  37
  38 sub new {
  39     my ( $class, $args ) = @_;
  40
  41     return unless ( C4::Context->config("enable_plugins") || $args->{'enable_plugins'} );
  42
  43     $args->{'pluginsdir'} = C4::Context->config("pluginsdir");
  44
  45     return bless( $args, $class );
  46 }
  47
  48 =head2 GetPlugins()
  49
  50 This will return a list of all the available plugins of the passed type.
  51
  52 Usage: my @plugins = C4::Plugins::GetPlugins( $method );
  53
  54 At the moment, the available types are 'report', 'tool' and 'to_marc'.
  55 =cut
  56
  57 sub GetPlugins {
  58     my $self   = shift;
  59     my $method = shift;
  60
  61     my @plugin_classes = $self->plugins();
  62     my @plugins;
  63
  64     foreach my $plugin_class (@plugin_classes) {
  65         if ( can_load( modules => { $plugin_class => undef } ) ) {
  66             next unless $plugin_class->isa('Koha::Plugins::Base');
  67
  68             my $plugin = $plugin_class->new({ enable_plugins => $self->{'enable_plugins'} });
  69
  70             if ($method) {
  71                 if ( $plugin->can($method) ) {
  72                     push( @plugins, $plugin );
  73                 }
  74             } else {
  75                 push( @plugins, $plugin );
  76             }
  77         }
  78     }
  79     return @plugins;
  80 }
  81
  82 1;
  83 __END__
  84
  85 =head1 AUTHOR
  86
  87 Kyle M Hall <kyle.m.hall@gmail.com>
  88
  89 =cut