What's New in WordPress 3.0 (for developers)
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The document summarizes new features in WordPress 3.0 including new user features like menus and help tabs, updated theme functions like get_template_part(), custom post types, custom post loops and feeds, defining taxonomies and columns, and multisite networks. It also notes some gotchas with hierarchical taxonomies, permalinks, and plugins not optimized for multisite.
What's New in WordPress 3.0 (for developers)
- 1. What’s New in 3.0 Stephanie Leary @sleary sillybean.net
- 2. User Features • Twenty Ten theme • Menus • Help tabs • Unified Updater
- 3. Theme Functions • the_shortlink() • get_template_part() • comment_form() • wp_nav_menu()
- 4. the_shortlink() • This is the short link. • http://blog.example.com/?p=123 • http://wp.me/pZhYe-nl • wp_get_shortlink()
- 5. get_template_part() • new: get_template_part(foo.php); • old: include(TEMPLATEPATH."/foo.php");
- 6. comment_form() • Replaces the entire <form> contents • Markup and labels can be changed using $args array
- 7. wp_nav_menu() • wp_nav_menu("menu=Main"); • wp_nav_menu("fallback_cb=wp_list_ categories"); • in functions.php: add_theme_support("nav_menus");
- 8. Background Images • add_custom_background();
- 9. New Theme Files • single-content-type.php • author.php • author-id.php • author-nickname.php • category-slug.php
- 10. Custom Post Types • register_post_type( ‘course’, array( ‘labels‘ = array( ‘name‘ => ‘Courses’, ‘singular_name‘ => ‘Courses‘ ) )
- 11. Custom Post Loops • query_posts(‘post_type=post,course ’);
- 12. Custom Post Feeds • /?feed=rss2&post_type=course • /feed/?post_type=course • /feed/?post_type=post,page,course
- 13. Custom Post Type UI
- 18. Definining Taxonomies • register_taxonomy( ‘college’, array(‘course’, ‘post’), );
- 19. Edit Columns
- 20. Feeds • /college/science/feed • /college/science/feed/atom • /?feed=rss2&college=science
- 21. Gotchas • Archives are defined for terms, but not for the taxonomy itself (404) • Hierarchical taxonomy URLs are not built like categories (/parent/child)
- 22. Permalinks • http://dd32.id.au/files/wordpress/ example-hierarchical-term- links.php
- 25. Multisite/Networks • Requirements: • Subdomains: wildcard DNS • Subdirectories: .htaccess
- 26. Activating the Network • define(‘WP_ALLOW_MULTISITE’, true);
- 32. Gotchas • Main site archives move to /blog • Upload buttons disappear • Themes must be network-enabled • Plugins & apps not made for multi: • XML Sitemaps • iPhone app
- 35. Plugins for Multisite • MU Helpers • Domain Mapping
- 37. Things That Went Away • Option for global tags • Miscellaneous Settings page • importers (plugins)
- 38. Questions? Stephanie Leary @sleary sillybean.net
Editor's Notes
- #7: Arguments are: fields, comment_field, must_log_in, logged_in_as, comment_notes_before, comment_notes_after, id_form, id_submit, title_reply, title_reply_to, cancel_reply_link, label_submit
- #11: This is a simple example. You can also specify which features your post type should support: title, editor, excerpt, revisions, post author, categories/tags/other taxonomies