Cody Helgeson gave a presentation on custom post types in WordPress. He covered best practices for custom post types and taxonomies, using page templates, custom fields, custom columns in the admin interface, and custom queries. Real-world examples were provided and code samples were shown for registering post types and taxonomies, as well as retrieving custom field values and building custom queries.

1. 1
Custom Post Types
Now What?
By Cody Helgeson
WordCamp Phoenix 2012
@codyhelgeson | @fallingupmedia | #wcphx

2. 2
Find More Info
Who Am I?
My Experience with WordPress
@codyhelgeson
@fallingupmedia
fallingupmedia.com
cody@fallingupmedia.com
@codyhelgeson | @fallingupmedia | #wcphx

3. 3
Topics For The Day
• Custom Post Type Best Practices
• Custom Taxonomies
• Page Templates
• Custom Fields
• Custom Admin Columns
• Custom Queries
@codyhelgeson | @fallingupmedia | #wcphx

4. 4
Custom Post Types
• Who has or is about to use custom post types?
• Why use custom post types
• Why not?
• For the client
• For the developer
@codyhelgeson | @fallingupmedia | #wcphx

5. 5
Custom Post Types
Examples
• Book and Product Reviews
• Job and Business Listings
• Events and Locations
• Portfolios and Case Studies
• Combine with BuddyPress for Community Domination!
• Anything your Heart Desires....
@codyhelgeson | @fallingupmedia | #wcphx

6. 6
Custom Post Types
The Code
http://codex.wordpress.org/Function_Reference/register_post_type
• Contextual help menus are a nice touch
• Permalinks matter!
• Flush the rewrite rules, or save permalink settings
• /%category%/%postname%/
• www.domain.com/custom-post-type/post-title
@codyhelgeson | @fallingupmedia | #wcphx

7. 7
Topics For The Day
• Custom Post Type Best Practices
• Custom Taxonomies
• Page Templates
• Custom Fields
• Custom Admin Columns
• Custom Queries
@codyhelgeson | @fallingupmedia | #wcphx

8. 8
Custom Taxonomies
http://codex.wordpress.org/Taxonomies
• Categorizes and groups content
• Hierarchal or not? I.E. tags or categories
• Clean and intuitive for users
• Custom slugs argument
• Create custom page templates and queries
@codyhelgeson | @fallingupmedia | #wcphx

9. 9
Custom Taxonomies
The Code
http://codex.wordpress.org/Function_Reference/register_taxonomy
• Flush rewrite or save permalink settings
• There are reserved terms!
• register_taxonomy($taxonomy, $object_type, $args);
@codyhelgeson | @fallingupmedia | #wcphx

10. 10
Topics For The Day
Custom Post Types
• Custom Post Type Best Practices
• Custom Taxonomies
• Page Templates
• Custom Fields
• Custom Admin Columns
• Custom Queries
@codyhelgeson | @fallingupmedia | #wcphx

11. 11
Page Templates
http://codex.wordpress.org/Template_Hierarchy
• WordPress makes it easy! Use them!
• single-post_type.php
• archive-post_type.php
• taxonomy-taxonomy_name-slug.php
• taxonomy-taxonomy_name.php
@codyhelgeson | @fallingupmedia | #wcphx

12. 12
Topics For The Day
Custom Post Types
• Custom Post Type Best Practices
• Custom Taxonomies
• Page Templates
• Custom Fields
• Custom Admin Columns
• Custom Queries
@codyhelgeson | @fallingupmedia | #wcphx

13. 13
Custom Fields
http://codex.wordpress.org/Custom_Fields
• Purely incredible! Endless possibilities
• Remove what you don’t need from editor. Take the time
• Create your own or use a plugin
• Advanced Custom Fields plugin
• Magic Fields plugin
• get_post_meta - add_post_meta
@codyhelgeson | @fallingupmedia | #wcphx

14. 14
Custom Fields
Examples
• Real world examples on the web......
@codyhelgeson | @fallingupmedia | #wcphx

15. 15
Topics For The Day
Custom Post Types
• Custom Post Type Best Practices
• Custom Taxonomies
• Page Templates
• Custom Fields
• Custom Admin Columns
• Custom Queries
@codyhelgeson | @fallingupmedia | #wcphx

16. 16
Custom Admin Columns
The Code
http://codex.wordpress.org/Plugin_API/Action_Reference/
manage_posts_custom_column
http://codex.wordpress.org/Plugin_API/Filter_Reference/
manage_edit-post_type_columns
add_action("manage_posts_custom_column", "your_custom_post_column_function");
add_filter("manage_edit-$post_type_columns", "your_custom_column_function");
@codyhelgeson | @fallingupmedia | #wcphx

17. 17
http://blog.elliotcondon.com/wordpress/advanced-custom-fields-
admin-custom-columns/
function my_page_columns($columns)
{
" $columns = array(
" " 'cb'" " => '<input type="checkbox" />',
" " 'thumbnail'" =>"'Thumbnail',
" " 'title' " => 'Title',
" " 'featured' "=> 'Featured',
" " 'author'" =>"'Author',
" " 'date'" " =>"'Date',
" );
" return $columns;
}
@codyhelgeson | @fallingupmedia | #wcphx

18. 18
function my_custom_columns($column)
{
" global $post;
" if($column == 'thumbnail')
" {
" " echo wp_get_attachment_image( get_field('page_image', $post->ID), array(200,200) );
" }
" elseif($column == 'featured')
" {
" " if(get_field('featured'))
" " {
" " " echo 'Yes';
" " }
" " else
" " {
" " " echo 'No';
" " }
" }
}
add_action("manage_pages_custom_column", "my_custom_columns");
add_filter("manage_edit-page_columns", "my_page_columns");
@codyhelgeson | @fallingupmedia | #wcphx

19. 19
Custom Admin Columns
Examples
@codyhelgeson | @fallingupmedia | #wcphx

20. 20
http://www.trymypoolguy.com
function my_post_columns_forums($columns)
{
" $columns = array(
" " 'cb'" " => '<input type="checkbox" />',
" " 'title' " => 'Listing Title',
" " 'featured'" => 'Featured',
" " 'author' => 'Author',
" " 'comments' => '<img src="image_path_goes_here" />',
" " 'zips' => 'Zip Code',
" " 'services' => 'Services',
" " 'repairs' => 'Repairs',
" " 'date'" " => 'Date',
" );
" return $columns;
}
@codyhelgeson | @fallingupmedia | #wcphx

21. 21
function my_custom_columns_forums($column)
{
" global $post;
" if($column == 'featured')
" {
" " if(get_field('featured'))
" " {
" " " echo '<strong>Yes</strong>';
" " }
" " else
" " {
" " " echo '';
" " }
" }
" if($column == 'zips')
" {
" " echo get_field('zip_code', $post->ID);
" }
" if($column == 'services')
" {
" $custom_fields = get_post_custom($post->ID);
" $my_custom_field = $custom_fields['services'];
" foreach ( $my_custom_field as $key => $value )
" echo $value . "<br />";
" }
" if($column == 'repairs')
" {
" $custom_fields = get_post_custom($post->ID);
" $my_custom_field = $custom_fields['repairs'];
" foreach ( $my_custom_field as $key => $value )
" echo $value . "<br />";
" }

22. 22
Custom Admin Columns
Examples
@codyhelgeson | @fallingupmedia | #wcphx

23. 23
Topics For The Day
Custom Post Types
• Custom Post Type Best Practices
• Custom Taxonomies
• Page Templates
• Custom Fields
• Custom Admin Columns
• Custom Queries
@codyhelgeson | @fallingupmedia | #wcphx

24. 24
Custom Queries
http://codex.wordpress.org/Template_Tags/get_posts
http://codex.wordpress.org/Class_Reference/WP_Query
• get_posts
• does not modify global variables
• wp_query
• always <?php wp_reset_query(); ?>
@codyhelgeson | @fallingupmedia | #wcphx

25. 25
Custom Queries
get posts from:
custom post type - dogfood
and category = brand
<?php
$args = array(
'numberposts' => 8,
'orderby' => 'rand',
'post_type' => 'dogfood',
'dogfood_category' => 'brand',
'post_status' => 'publish'
);
$show_brands = get_posts ( $args );
?>
@codyhelgeson | @fallingupmedia | #wcphx

26. 26
Custom Queries
Examples
• Real world examples on the web......
@codyhelgeson | @fallingupmedia | #wcphx

27. 27
Thank You!
@codyhelgeson
@fallingupmedia
fallingupmedia.com
cody@fallingupmedia.com
@codyhelgeson | @fallingupmedia | #wcphx

28. 28
Custom Post Types
Now What?
By Cody Helgeson
WordCamp Phoenix 2012
@codyhelgeson | @fallingupmedia | #wcphx