Hacking Movable Type
Jun 04, 2015
An introduction to plugin development for Movable Type
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“Movable Type 3.2 is the premier weblog publishing
platform for businesses, organizations, developers,
and web designers”
MT
Articoli,
template
________
________
________
Le funzioni di MT
Le funzioni di MT<MTEntries> <$MTEntryTrackbackData$>...<a id="a<$MTEntryID pad="1"$>"></a><div class="entry" id="entry-<$MTEntryID$>"> <h3 class="entry-header"><$MTEntryTitle$></h3> <div class="entry-content"> <div class="entry-body"> <$MTEntryBody$> <MTEntryIfExtended> ... </div> </div></div></MTEntries>
Le caratteristiche di MT
• Interfaccia web completa ma affidabile
• Sistema di gestione degli autori (con abbozzo di gestione di ruoli e permessi)
• Sistema potente per la gestione dei template
Inoltre...
MT dal punto di vista del programmatore
• Espone una API sofisticata e documentata
• Incoraggia lo sviluppo di plug-in per estenderne le funzionalità
• È scritto in Perl :-)
MT
Articoli,
template
________
________
________
Plugin
Estendere MT
Esempi di realizzazioni
Esempi di realizzazioni
maketitle.plmy $plugin;
require MT::Plugin;
$plugin = MT::Plugin->new( { name => 'Maketitle', description => q{Costruisce titoli grafici}, doc_link => '',} );
MT->add_plugin($plugin);
maketitle.pl /2
# ... continua
MT::Template::Context->add_tag( MakeGraphicTitle => \&make_graphic_title );
maketitle.pl /2
...<center> <$MTMakeGraphicTitle$></center>...
nel template...
maketitle.pl /2sub make_graphic_title{ my $context = shift; my $params = shift;
my $entry = $context->stash('entry');
my $title = $entry->title(); my $dirified_title = dirify( $title ); ... return qq{<img src="$imageurl">};}
maketitle.pl /2
...<center> <img src=”...”></center>...
nel file HTML risultante...
statwatch
statwatch
schemas mysql.dump
tmpl
list.tmpl
swfooter.tmpl
swheader.tmpl
view.tmpl
statwatch
statwatch
lib
Stats.pm
StatWatch Visit.pm
StatWatch.pm
StatWatchConfig.pm
statvisit.cgi
statwatch.cgi
statwatch.pl
statwatch
...
MT::Template::Context->add_tag('Stats' => sub{&staturl});
sub staturl { my $ctx = shift; my $blog = $ctx->stash('blog');
my $cfg = MT::ConfigMgr->instance; my $script = '<script type="text/javascript"> '.'<!-- '. qq|document.write('<img src="| . $cfg->CGIPath . "plugins/statwatch/statvisit.cgi?blog_id=" . $blog->id ... |.'// -->'.' </script>'; return $script;}
1;
statwatch.pl
statwatch
lib
Stats.pm
StatWatch Visit.pm
StatWatch.pm
StatWatchConfig.pm
statvisit.cgi
statwatch.cgi
statwatch.pl
statwatch
# StatWatch - lib/StatWatch/Visit.pm # Nick O'Neill (http://www.raquo.net/statwatch/)
package StatWatch::Visit;use strict;
use MT::App;@StatWatch::Visit::ISA = qw( MT::App );
use Stats;my $VERSION = '1.2';my $DEBUG = 0;
Visit.pm
MT::App
MT::App::CMS MT::App::Comments MT::App::Search
MT
MT::ErrorHandler
MT::Plugin
sub init { my $app = shift; $app->SUPER::init(@_) or return; $app->add_methods( visit => \&visit, ); $app->{default_mode} = 'visit'; $app->{user_class} = 'MT::Author';
$app->{charset} = $app->{cfg}->PublishCharset; my $q = $app->{query};
$app;}
Visit.pm /2
sub visit { my $app = shift; my $q = $app->{query}; my $blog_id; if ($blog_id = $q->param('blog_id')) { require MT::Blog; my $blog = MT::Blog->load({ id => $blog_id }) or die "Error loading blog from blog_id $blog_id";
my $stats = Stats->new;
# ...
Visit.pm /2
statwatch
lib
Stats.pm
StatWatch Visit.pm
StatWatch.pm
StatWatchConfig.pm
statvisit.cgi
statwatch.cgi
statwatch.pl
statwatch
package Stats;use strict;
use MT::Object;@Stats::ISA = qw( MT::Object );__PACKAGE__->install_properties({ columns => [ 'id', 'blog_id', 'url', 'referrer', 'ip', ], indexes => { ip => 1, blog_id => 1, created_on => 1, }, audit => 1, datasource => 'stats', primary_key => 'id',});
1;
Visit.pm /2
MT::ObjectDriver
MT::ObjectDriver::DBI MT::ObjectDriver::DBM
MT::Object
MT::Entry MT::Author MT::Config
MT::ErrorHandler
# ...
$stats->ip($app->remote_ip); $stats->referrer($referrer); $stats->blog_id($blog_id); $stats->url($url); &compileStats($blog_id,$app->remote_ip);
$stats->save or die "Saving stats failed: ", $stats->errstr; } else { die "No blog id"; }}
Visit.pm /2
statwatch
lib
Stats.pm
StatWatch Visit.pm
StatWatch.pm
StatWatchConfig.pm
statvisit.cgi
statwatch.cgi
statwatch.pl
statwatch
sub init { my $app = shift; $app->SUPER::init(@_) or return; $app->add_methods( list => \&list, view => \&view, ); $app->{default_mode} = 'list'; $app->{user_class} = 'MT::Author';
$app->{requires_login} = 1; $app->{charset} = $app->{cfg}->PublishCharset; my $q = $app->{query};
$app;}
Visit.pm /2
sub list { my $app = shift; my %param; my $q = $app->{query}; $param{debug} = ($DEBUG || $q->param('debug')); $param{setup} = $q->param('setup');
( $param{script_url} , $param{statwatch_base_url} , $param{statwatch_url} , my $static_uri) = parse_cfg();
require MT::PluginData; unless (MT::PluginData->load({ plugin => 'statwatch', key => 'setup_'.$VERSION })) { &setup; $app->redirect($param{statwatch_url}."?setup=1"); }
require MT::Blog; my @blogs = MT::Blog->load; my $data = []; ...
Visit.pm /2
... ### Listing the blogs on the main page ### for my $blog (@blogs) { if (Stats->count({ blog_id => $blog->id })) { # [... colleziona i dati da mostrare ...] # Row it my $row = { ... }; push @$data, $row; } } $param{blog_loop} = $data; $param{gen_time} = " | ".$now." seconds";
$param{version} = $VERSION; $app->build_page('tmpl/list.tmpl', \%param);}
Visit.pm /2
Riepilogo?
• Inserire nuovi tag speciale all’interno dei template
• Aggiungere pannelli (applicazioni)
• ...
BigPAPI
• Big Plugin API
• Permette di agganciarsi all’interfaccia esistente di MT, estendendo le funzionalità dei pannelli esistenti
Perchè?
RightFieldsMT->add_callback( 'bigpapi::template::edit_entry::top', 9, $rightfields, \&edit_entry_template );
MT->add_callback( 'bigpapi::param::edit_entry', 9, $rightfields, \&edit_entry_param );
MT->add_callback( 'bigpapi::param::preview_entry', 9, $rightfields, \&preview_entry_param);
RightFields
Approfondimenti
• Six Apart Developer Wikihttp://www.lifewiki.net/sixapart/
• Seedmagazine.com — Lookin’ Goodhttp://o2b.net/archives/seedmagazine
• Beyond the bloghttp://a.wholelottanothing.org/features/2003/07/beyond_the_blog
• http://del.icio.us/slr/movabletype :-)
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