{"id":4211,"date":"2016-05-30T02:13:42","date_gmt":"2016-05-30T02:13:42","guid":{"rendered":"http:\/\/www.garysieling.com\/blog\/?p=4211"},"modified":"2016-05-30T02:13:42","modified_gmt":"2016-05-30T02:13:42","slug":"wordpress-register-taxonomy-example-register_taxonomy","status":"publish","type":"post","link":"https:\/\/www.garysieling.com\/blog\/wordpress-register-taxonomy-example-register_taxonomy\/","title":{"rendered":"WordPress: Register Taxonomy Example (register_taxonomy)"},"content":{"rendered":"

If you create a new Post type in WordPress, it’s often useful to add a custom Taxonomy (similar to categories \/ tags on Posts). In this case, we’re adding an “error message” type (that contains lots of lists of error messages), and adding a “library” taxonomy, for which Javascript library the error comes from.<\/p>\n

To do this, you first need to register the new type, in functions.php:<\/p>\n

\nadd_action( 'init', 'create_post_type' );\nfunction create_post_type() {\n  register_post_type( 'error_message',\n    array(\n      'labels' => array(\n        'name' => __( 'Errors' ),\n        'singular_name' => __( 'Error' )\n      ),\n      'public' => true,\n      'has_archive' => true,\n    )\n  );\n\n  ...\n}\n<\/pre>\n
When you customize WordPress, it seems to be quite sensitive about you making labels for all the spots you might use the thing.<\/p>\n
So, before we add the taxonomy, we have to write labels for everything:<\/p>\n
\n$labels = array(\n  'name'              => _x( 'Libraries', 'taxonomy general name' ),\n  'singular_name'     => _x( 'Library', 'taxonomy singular name' ),\n  'search_items'      => __( 'Search Libraries' ),\n  'all_items'         => __( 'All Libraries' ),\n  'parent_item'       => __( 'Parent Library' ),\n  'parent_item_colon' => __( 'Parent Library:' ),\n  'edit_item'         => __( 'Edit Library' ),\n  'update_item'       => __( 'Update Library' ),\n  'add_new_item'      => __( 'Add New Library' ),\n  'new_item_name'     => __( 'New Library Name' ),\n  'menu_name'         => __( 'Library' ),\n);\n<\/pre>\n
Then, finally we can create the taxonomy (note the slug is important – this determines URLs in use):<\/p>\n
\n$args = array(\n  'hierarchical'      => false,\n  'labels'            => $labels,\n  'show_ui'           => true,\n  'show_admin_column' => true,\n  'query_var'         => true,\n  'rewrite'           => array( 'slug' => 'library' ),\n);\n\nregister_taxonomy( 'library_category', 'error_message', $args );\n<\/pre>\n
<\/p>\n","protected":false},"excerpt":{"rendered":"
How to add custom taxonomies to Wordpress<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"footnotes":""},"categories":[4],"tags":[432,601],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t