use Modern::Perl;
+use Array::Utils qw( array_minus );
use Class::Inspector;
-use List::MoreUtils qw(any);
-use Module::Load::Conditional qw(can_load);
-use Module::Load qw(load);
+use List::MoreUtils qw( any );
+use Module::Load::Conditional qw( can_load );
+use Module::Load;
use Module::Pluggable search_path => ['Koha::Plugin'], except => qr/::Edifact(|::Line|::Message|::Order|::Segment|::Transport)$/;
+use Try::Tiny;
use C4::Context;
use C4::Output;
+
+use Koha::Cache::Memory::Lite;
+use Koha::Exceptions::Plugin;
use Koha::Plugins::Methods;
+use constant ENABLED_PLUGINS_CACHE_KEY => 'enabled_plugins';
+
BEGIN {
my $pluginsdir = C4::Context->config("pluginsdir");
my @pluginsdir = ref($pluginsdir) eq 'ARRAY' ? @$pluginsdir : $pluginsdir;
- push( @INC, @pluginsdir );
+ push @INC, array_minus(@pluginsdir, @INC) ;
pop @INC if $INC[-1] eq '.';
}
Koha::Plugins - Module for loading and managing plugins.
+=head2 new
+
+Constructor
+
=cut
sub new {
@responses = Koha::Plugins->call($method, @args)
+Note: Pass your arguments as refs, when you want subsequent plugins to use the value
+updated by preceding plugins, provided that these plugins support that.
+
=cut
sub call {
my ($class, $method, @args) = @_;
- if (C4::Context->preference('UseKohaPlugins') && C4::Context->config('enable_plugins')) {
- my @plugins = $class->new({ enable_plugins => 1 })->GetPlugins({ method => $method });
- my @responses;
- foreach my $plugin (@plugins) {
- my $response = $plugin->$method(@args);
- push @responses, $response;
+ return unless C4::Context->config('enable_plugins');
+
+ my @responses;
+ my @plugins = $class->get_enabled_plugins();
+ @plugins = grep { $_->can($method) } @plugins;
+
+ # TODO: Remove warn when after_hold_create is removed from the codebase
+ warn "after_hold_create is deprecated and will be removed soon. Contact the following plugin's authors: " . join( ', ', map {$_->{metadata}->{name}} @plugins)
+ if $method eq 'after_hold_create' and @plugins;
+
+ foreach my $plugin (@plugins) {
+ my $response = eval { $plugin->$method(@args) };
+ if ($@) {
+ warn sprintf("Plugin error (%s): %s", $plugin->get_metadata->{name}, $@);
+ next;
}
- return @responses;
+ push @responses, $response;
}
+
+ return @responses;
+}
+
+sub get_enabled_plugins {
+ my ($class) = @_;
+
+ return unless C4::Context->config('enable_plugins');
+
+ my $enabled_plugins = Koha::Cache::Memory::Lite->get_from_cache(ENABLED_PLUGINS_CACHE_KEY);
+ unless ($enabled_plugins) {
+ $enabled_plugins = [];
+ my $rs = Koha::Database->schema->resultset('PluginData');
+ $rs = $rs->search({ plugin_key => '__ENABLED__', plugin_value => 1 });
+ my @plugin_classes = $rs->get_column('plugin_class')->all();
+ foreach my $plugin_class (@plugin_classes) {
+ unless (can_load(modules => { $plugin_class => undef }, nocache => 1)) {
+ warn "Failed to load $plugin_class: $Module::Load::Conditional::ERROR";
+ next;
+ }
+
+ my $plugin = eval { $plugin_class->new() };
+ if ($@ || !$plugin) {
+ warn "Failed to instantiate plugin $plugin_class: $@";
+ next;
+ }
+
+ push @$enabled_plugins, $plugin;
+ }
+ Koha::Cache::Memory::Lite->set_in_cache(ENABLED_PLUGINS_CACHE_KEY, $enabled_plugins);
+ }
+
+ return @$enabled_plugins;
}
=head2 GetPlugins
});
The method and metadata parameters are optional.
-Available methods currently are: 'report', 'tool', 'to_marc', 'edifact'.
If you pass multiple keys in the metadata hash, all keys must match.
=cut
# Loop through all plugins that implement at least a method
while ( my $plugin_class = $plugin_classes->next ) {
- load $plugin_class;
- my $plugin = $plugin_class->new({
- enable_plugins => $self->{'enable_plugins'}
- # loads even if plugins are disabled
- # FIXME: is this for testing without bothering to mock config?
- });
+ if ( can_load( modules => { $plugin_class => undef }, nocache => 1 ) ) {
+
+ my $plugin;
+ my $failed_instantiation;
+
+ try {
+ $plugin = $plugin_class->new({
+ enable_plugins => $self->{'enable_plugins'}
+ # loads even if plugins are disabled
+ # FIXME: is this for testing without bothering to mock config?
+ });
+ }
+ catch {
+ warn "$_";
+ $failed_instantiation = 1;
+ };
+
+ next if $failed_instantiation;
- next unless $plugin->is_enabled or
- defined($params->{all}) && $params->{all};
+ next unless $plugin->is_enabled or
+ defined($params->{all}) && $params->{all};
- # filter the plugin out by metadata
- my $plugin_metadata = $plugin->get_metadata;
- next
- if $plugin_metadata
- and %$req_metadata
- and any { !$plugin_metadata->{$_} || $plugin_metadata->{$_} ne $req_metadata->{$_} } keys %$req_metadata;
+ # filter the plugin out by metadata
+ my $plugin_metadata = $plugin->get_metadata;
+ next
+ if $plugin_metadata
+ and %$req_metadata
+ and any { !$plugin_metadata->{$_} || $plugin_metadata->{$_} ne $req_metadata->{$_} } keys %$req_metadata;
- push @plugins, $plugin;
+ push @plugins, $plugin;
+ } elsif ( defined($params->{errors}) && $params->{errors} ){
+ push @plugins, { error => 'cannot_load', name => $plugin_class };
+ }
}
For each plugin module found, it will test that the plugin can be loaded,
and if it can, will store its available methods in the plugin_methods table.
-NOTE: We re-load all plugins here as a protective measure in case someone
+NOTE: We reload all plugins here as a protective measure in case someone
has removed a plugin directly from the system without using the UI
=cut
if ( can_load( modules => { $plugin_class => undef }, nocache => 1 ) ) {
next unless $plugin_class->isa('Koha::Plugins::Base');
- my $plugin = $plugin_class->new({ enable_plugins => $self->{'enable_plugins'} });
+ my $plugin;
+ my $failed_instantiation;
+
+ try {
+ $plugin = $plugin_class->new({ enable_plugins => $self->{'enable_plugins'} });
+ }
+ catch {
+ warn "$_";
+ $failed_instantiation = 1;
+ };
+
+ next if $failed_instantiation;
Koha::Plugins::Methods->search({ plugin_class => $plugin_class })->delete();
warn $error unless $error =~ m|^Could not find or check module '$plugin_class'|;
}
}
+
+ Koha::Cache::Memory::Lite->clear_from_cache(ENABLED_PLUGINS_CACHE_KEY);
+
return @plugins;
}
1;
__END__
-=head1 AVAILABLE HOOKS
-
-=head2 after_hold_create
-
-=head3 Parameters
-
-=over
-
-=item * C<$hold> - A Koha::Hold object that has just been inserted in database
-
-=back
-
-=head3 Return value
-
-None
-
-=head3 Example
-
- sub after_hold_create {
- my ($self, $hold) = @_;
-
- warn "New hold for borrower " . $hold->borrower->borrowernumber;
- }
-
=head1 AUTHOR
Kyle M Hall <kyle.m.hall@gmail.com>
projects / koha-ffzg.git / blobdiff