如何在WordPress 3中将自定义字段添加到自定义帖子类型（）

我使用register_post_type函数创建了一个自定义帖子类型, 现在我想向其添加自定义字段。这些必须是用户友好的, 并尽可能集成在GUI中。
我尝试了自定义字段模板, 但最终用户并不喜欢它。我更喜欢使用代码添加新字段和新的元框。
#1我发现这一系列教程非常有帮助：

http://wp.tutsplus.com/tutorials/reusable-custom-meta-boxes-part-1-intro-and-basic-fields/
http://wp.tutsplus.com/tutorials/reusable-custom-meta-boxes-part-2-advanced-fields/
http://wp.tutsplus.com/tutorials/reusable-custom-meta-boxes-part-3-extra-fields/
http://wp.tutsplus.com/tutorials/reusable-custom-meta-boxes-part-4-using-the-data/

而且, 如果你需要简单的代码示例, 则此代码基本上是我自己使用的模板：(使用Scribu的最佳脚本加载技术)

final class Metabox_Example { // These hook into to the two core actions we need to perform; creating the metabox, and saving it's contents when it is posted public function __construct() { // http://codex.wordpress.org/Plugin_API/Action_Reference/add_meta_boxes add_action( 'add_meta_boxes', array( $this, 'create_meta_box' ) ); // http://codex.wordpress.org/Plugin_API/Action_Reference/save_post add_filter( 'save_post', array( $this, 'save_meta_box' ), 10, 2 ); }public function create_meta_box( $post_type, $post ) { // http://codex.wordpress.org/Function_Reference/add_meta_box add_meta_box( 'location_information_meta_box', // (string) (required) HTML 'id' attribute of the edit screen section __( 'Location Information', 'plugin-namespace' ), // (string) (required) Title of the edit screen section, visible to user array( $this, 'print_meta_box' ), // (callback) (required) Function that prints out the HTML for the edit screen section. The function name as a string, or, within a class, an array to call one of the class's methods. 'location', // (string) (required) The type of Write screen on which to show the edit screen section ('post', 'page', 'dashboard', 'link', 'attachment' or 'custom_post_type' where custom_post_type is the custom post type slug) 'normal', // (string) (optional) The part of the page where the edit screen section should be shown ('normal', 'advanced', or 'side') 'high' // (string) (optional) The priority within the context where the boxes should show ('high', 'core', 'default' or 'low') ); }public function print_meta_box( $post, $metabox ) { ?> < !-- These hidden fields are a registry of metaboxes that need to be saved if you wanted to output multiple boxes. The current metabox ID is added to the array. --> < input type="hidden" name="meta_box_ids[]" value="http://www.srcmini.com/< ?php echo $metabox['id']; ?> " /> < !-- http://codex.wordpress.org/Function_Reference/wp_nonce_field --> < ?php wp_nonce_field( 'save_' . $metabox['id'], $metabox['id'] . '_nonce' ); ?> < !-- This is a sample of fields that are associated with the metabox. You will notice that get_post_meta is trying to get previously saved information associated with the metabox. --> < !-- http://codex.wordpress.org/Function_Reference/get_post_meta --> < table class="form-table"> < tr> < th> < label for="location_address"> < ?php _e( 'Street Address', 'plugin-namespace' ); ?> < /label> < /th> < td> < input name="location_address" type="text" id="location_address" value="http://www.srcmini.com/< ?php echo get_post_meta($post-> ID,'location_address', true); ?> " class="regular-text"> < /td> < /tr> < tr> < th> < label for="location_city"> < ?php _e( 'City', 'plugin-namespace' ); ?> < /label> < /th> < td> < input name="location_city" type="text" id="location_city" value="http://www.srcmini.com/< ?php echo get_post_meta($post-> ID,'location_city', true); ?> " class="regular-text"> < /td> < /tr> < tr> < th> < label for="location_province"> < ?php _e( 'State/Province', 'plugin-namespace' ); ?> < /label> < /th> < td> < input name="location_province" type="text" id="location_province" value="http://www.srcmini.com/< ?php echo get_post_meta($post-> ID,'location_province', true); ?> " class="regular-text"> < /td> < /tr> < tr> < th> < label for="location_postalcode"> < ?php _e( 'Postal Code', 'plugin-namespace' ); ?> < /label> < /th> < td> < input name="location_postalcode" type="text" id="location_postalcode" value="http://www.srcmini.com/< ?php echo get_post_meta($post-> ID,'location_postalcode', true); ?> " class="regular-text"> < /td> < /tr> < tr> < th> < label for="location_country"> < ?php _e( 'Country', 'plugin-namespace' ); ?> < /label> < /th> < td> < input name="location_country" type="text" id="location_country" value="http://www.srcmini.com/< ?php echo get_post_meta($post-> ID,'location_country', true); ?> " class="regular-text"> < /td> < /tr> < /table> < !-- These hidden fields are a registry of fields that need to be saved for each metabox. The field names correspond to the field name output above. --> < input type="hidden" name="< ?php echo $metabox['id']; ?> _fields[]" value="http://www.srcmini.com/location_address" /> < input type="hidden" name="< ?php echo $metabox['id']; ?> _fields[]" value="http://www.srcmini.com/location_city" /> < input type="hidden" name="< ?php echo $metabox['id']; ?> _fields[]" value="http://www.srcmini.com/location_province" /> < input type="hidden" name="< ?php echo $metabox['id']; ?> _fields[]" value="http://www.srcmini.com/location_postalcode" /> < input type="hidden" name="< ?php echo $metabox['id']; ?> _fields[]" value="http://www.srcmini.com/location_country" /> < ?php }public function save_meta_box( $post_id, $post ) { // Check if this information is being submitted by means of an autosave; if so, then do not process any of the following code if( defined( 'DOING_AUTOSAVE' ) & & DOING_AUTOSAVE ){ return; }// Determine if the postback contains any metaboxes that need to be saved if( empty( $_POST['meta_box_ids'] ) ){ return; }// Iterate through the registered metaboxes foreach( $_POST['meta_box_ids'] as $metabox_id ){ // Verify thhe request to update this metabox if( ! wp_verify_nonce( $_POST[ $metabox_id . '_nonce' ], 'save_' . $metabox_id ) ){ continue; }// Determine if the metabox contains any fields that need to be saved if( count( $_POST[ $metabox_id . '_fields' ] ) == 0 ){ continue; }// Iterate through the registered fields foreach( $_POST[ $metabox_id . '_fields' ] as $field_id ){ // Update or create the submitted contents of the fiels as post meta data // http://codex.wordpress.org/Function_Reference/update_post_meta update_post_meta($post_id, $field_id, $_POST[ $field_id ]); } }return $post; } }$metabox_example = new Metabox_Example();

#2我已经写了一篇有关如何按Wordpress管理区域中的自定义字段对自定义帖子类型进行排序的教程。我发现大多数情况下, 在发布日期之前订购自定义帖子类型并不是真正有用。
【如何在WordPress 3中将自定义字段添加到自定义帖子类型（）】可以在这里找到：http://www.eggplantstudios.ca/blog/wordpress-order-custom-post-type-by-custom-field-in-the-admin-area