Building custom CMS applications on WordPress

Building CustomCMS Applicationson WordPressmitcho (Michael 貴 Erlewine)

THIS GUY mitcho.comDOWN HERE @themitcho slideshare.net/mitcho

There’s no suchthing as a CMSsuccess story.The Trouble With Back-‐EndsErin Griﬃth, Adweek, August 9, 2011adweek.com/print/133917

CMSit’s all about the C and M

CC-BY-NC-SA ﬂickr.com/photos/13382424@N00/5216424459/

Today:1. Content C2. Management M

1. Content

The essence of man isdiscontent, divine discontent... the essence of web is content, divine content. José Ortega y Gasset

1. Content what is the content? is the metadata? where is the data?

Text?That’s so 2000s.

Global ShakespearesMIT Shakespeare Project globalshakespeares.org

Hundreds of productions with video

Document Revisions by Ben Balterwordpress.org/extend/plugins/wp-document-revisions

pressfs by Joseph Scottjosephscott.org/pressfs-a-wordpress-ﬁlesystem

Build featuresnot post types

In development: Shakespeare scripts

Scripts are XML ﬁles, not content text in WordPress No editor needed

Registering scriptsregister_post_type(script, array( label => Scripts, instead of ‘editor’ public => true, hierarchical => false, supports => array(title, xmldoc, comments), taxonomies => array(post_tag))); XML Documents with XSLT stylesheets wordpress.org/extend/plugins/xml-documents

Post Type Features post type features title, editor, author, thumbnail, excerpt, trackbacks, post custom-ﬁelds, comments, revisions, post-formats title, editor, author, thumbnail, page-attributes, page custom-ﬁelds, comments, revisions attachment comments default title, editor

Check for featuresif if ( script == $post_type// ( script == $post_type ) )if ( post_type_supports( $post_type, xmldoc ) )

Get meta.Deﬁne your metadata.

metadata in WordPress { taxonomyorganizationalsearch, sortingcan be hierarchical post meta non-organizational speciﬁc to the content itemlike tags, categories like custom ﬁelds

CC BY-NC-SA ﬂickr.com/photos/w3p706/2432014896/http://ottopress.com/2011/when- to-not-use-a-custom-taxonomy/

Taxonomy Queriesquery_posts( array( post_type => production, tax_query => array( array( taxonomy => play, terms => array( hamlet ), field => slug ), array( taxonomy => language, terms => array( japanese, mandarin ), field => slug ) ));

WordPressis not an island

Edgerton Digital CollectionsMIT Museum and MIT Edgerton Centerhttp://edgerton-digital-collections.org

12000 photos, 8000 notebook pages

All assets from the MIT Museum databasein MIMSY, a commercial collection management app

Edgerton• Custom post type for museum assets • Specify ID, get image and metadata from museum DB • Site-speciﬁc metadata (comments, tags) in WordPress

Remote data• Hit external APIs with wp_remote_request() and friends• Cache results in Post Meta, Object Cache, Transients, as appropriate

Search integration• Simple trick: put searchable text versions of custom content in post_content• Roll out a separate search

1. Content what is the content? is the metadata? where is the data?

2. Management

2. Management who contributes/edits/ curates/maintains it? how will it be managed?

Who’s who?

Work for the weekendadd_filter( user_has_cap, workweek, 10, 3 );function workweek( $allcaps, $caps, $args ) { $user = get_userdata( $args[1] ); $weekend = ( date( N ) > 5 ); if ( $args[0] == publish_posts && $user->user_email = jane@automattic.com && $weekend ) $allcaps[publish_posts] = false; return $allcaps;}

Keep It Simple,Smartypants.

Shakespeare: rich metadata on each production

Production metadata consolidated into one meta boxUse add_meta_box(), intercept data with ‘save_post’ ﬁlter.

KISSadd_filter( default_hidden_meta_boxes, function( $hidden ) { $hidden[] = myboxid; $hidden[] = anotherboxid; //... return $hidden; });

The right tool (?)for the job

Shakespeare: some video datasubmitted by researchers in Excel format

Solution: a simple (custom) CSV ﬁle importer

Insert the post$id = wp_insert_post( array( post_title => WP Hamlet, post_status => publish, post_type => production, tax_input => array( play => hamlet, director => matt-mullenweg, language => php )) );Add post meta separately.

NING:WA R• This is a balancing act • Moving to WordPress can be a great way to build new sustainable habits • Not all traditions are constructive

what is the content? is the metadata?where is the data?who contributes/edits/ curates/maintains it?how will it be managed?

kick-ass CMS applications

Discontent is the ﬁrst step in the progress of a man or nation... content is the ﬁrst concern in the progress of a website.Oscar Wilde

thank you. Q?mitcho (Michael 貴 Erlewine)mitcho.com; @themitcho; slideshare.net/mitcho

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Building custom CMS applications on WordPress

by Michael Yoshitaka Erlewine on Aug 12, 2011

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Building custom CMS applications on WordPress — Presentation Transcript