Taking Taxonomies Totally To The Top

A swift perusal of some interesting things you can do with taxonomies: flagging content for particular purposes, bookmarking systems, syncing post types and taxonomies, and syncing terms between sites in a multisite.

As always, the slides are only part of it, but do give you a flavour.

Plugins mentioned (if they're our plugins, and they're on Github, consider them move relevant to developers):
https://github.com/cftp/feature-posts-on-root-blog
https://github.com/cftp/sync-post-types-to-taxonomies
https://github.com/cftp/universal-taxonomy (mentioned in the questions)

Blogposts mentioned:
http://alexking.org/blog/2011/08/29/wordpress-post-meta-taxonomies
http://webdevstudios.com/2013/07/08/replace-wordpress-default-taxonomy-metabox-with-a-radio-select-metabox/

Tickets mentioned:
http://core.trac.wordpress.org/ticket/14084
http://core.trac.wordpress.org/ticket/15475
http://core.trac.wordpress.org/ticket/10142
http://core.trac.wordpress.org/ticket/17646
http://core.trac.wordpress.org/ticket/14084

Transcript

1. Taking Taxonomies Totally To The Top Simon Wheatley, @simonwheatley © Jeremy Keith - http://www.flickr.com/photos/74105777@N00/3373755775/
2. I’m Simon, nice to meet you all
3. spot the mistakes
8. “in this world nothing can be said to be certain, except death and taxes taxonomies” – Benjamin Franklin
9. organising your content © See-ming Lee - http://www.flickr.com/photos/seeminglee/4556156477/in/photostream/
10. structure © Claudio Alejandro Mufarrege - http://www.flickr.com/photos/claudio_ar/2702433442/
11. three tables © marya- http://www.flickr.com/photos/emdot/32815499/
12. wp_terms
13. wp_term_taxonomy
14. wp_term_relationships
16. register_taxonomy
17. term names and slugs are shared
19. flags for special treatment © Alden Jewell - http://www.flickr.com/photos/autohistorian/6940002890/
20. sticky © Matt Reinbold - http://www.flickr.com/photos/furryscalyman/3830578747/in/photostream/
21. sliders © Pedro Moura Pinheiro - http://www.flickr.com/photos/pedromourapinheiro/7684755096/
22. carousels © Chris Smith - http://www.flickr.com/photos/cjsmithphotography/5500801561/in/photostream/
23. simple taxonomy meta boxes © Popupology - http://www.flickr.com/photos/popupology/4750769171/
25. bookmarks © Vipul ᶶ Mathur - http://www.flickr.com/photos/vipulmathur/471634239/
26. bookmark-{user_id}
27. currently adding is easy © Luz Adriana Villa - http://www.flickr.com/photos/luchilu/408299457/
28. wp_set_object_terms( $object_id, $terms, $taxonomy, $append )
29. removing one term © Herman Rhoids - http://www.flickr.com/photos/rhoids/6820661300/in/photostream/
30. wp_delete_object_term_relationships ( $object_id, $taxonomies )
31. wp_get_object_terms( $object_ids, $taxonomies, $args )
32. wp_set_object_terms( $object_id, $terms, $taxonomy, $append )
33. wp_remove_object_terms( $object_id, $terms, $taxonomy )
34. wp_add_object_terms( $object_id, $terms, $taxonomy )
35. gotchas © Breanna Sisk - http://www.flickr.com/photos/breamarie/3366487089/
37. argh! © Andy Pixel - http://www.flickr.com/photos/smull/356355984/
38. no meta data makes the NSA sad
39. Why not?
40. lots of solutions © karl sinfield - http://www.flickr.com/photos/sindesign/268430073/
41. the (poor old) options table
42. © H.Powers - http://www.flickr.com/photos/melisande-origami/108813447/sizes/l/ sync post types & taxonomies
43. © H.Powers - http://www.flickr.com/photos/melisande-origami/108813447/sizes/l/ we can use post meta!
44. © H.Powers - http://www.flickr.com/photos/melisande-origami/108813447/sizes/l/ for every post a term
45. © H.Powers - http://www.flickr.com/photos/melisande-origami/108813447/sizes/l/ for every term a post
46. hooks for create, delete & edit © Gillie - http://www.flickr.com/photos/lovestruck94/3329381854/
47. exportable and importable
48. sptt_taxonomy_syncs_with( $taxonomy )
49. sptt_post_type_syncs_with( $post_type )
50. sptt_get_related_post_for_term( $term_id )
51. sptt_get_related_term_for_post( $post )
52. syncing terms in a multisite
53. feature post on root blog
54. switch_to_blog
55. stash it for (not very much) later
56. wp_get_object_terms( 1, 'category', array( 'fields' => 'tt_ids' ) )
57. aggregate counts © Thomas Hawk - http://www.flickr.com/photos/thomashawk/72778694/
58. questions? © Tom - http://www.flickr.com/photos/an_untrained_eye/6630719431/
59. We’re looking for freelance WordPress developers simonw@codeforthepeople.com