Register_post_type関数を使用してカスタム投稿タイプを作成しましたが、カスタムフィールドを追加したいと思います。これらは、できるだけユーザーフレンドリーで、GUIに統合されている必要があります。
カスタムフィールドテンプレートを試しましたが、エンドユーザーにとってはあまり好きではありません。新しいフィールドとコード付きの新しいメタボックスを追加することを好みます。
この一連のチュートリアルは非常に役に立ちました。
そして、まっすぐなコードサンプルが必要な場合、このコードは基本的に私が自分で使用するテンプレートです:(使用 Scribuの最適なスクリプトロード手法 )
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="<?php echo $metabox['id']; ?>" />
<!-- http://codex.wordpress.org/Function_Reference/wp_nonce_field -->
<?php wp_nonce_field( 'save_' . $metabox['id'], $metabox['id'] . '_nonce' ); ?>
<!-- This is a sample of fields that are associated with the metabox. You will notice that get_post_meta is trying to get previously saved information associated with the metabox. -->
<!-- http://codex.wordpress.org/Function_Reference/get_post_meta -->
<table class="form-table">
<tr><th><label for="location_address"><?php _e( 'Street Address', 'plugin-namespace' ); ?></label></th>
<td><input name="location_address" type="text" id="location_address" value="<?php echo get_post_meta($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="<?php echo get_post_meta($post->ID, 'location_city', true); ?>" class="regular-text"></td></tr>
<tr><th><label for="location_province"><?php _e( 'State/Province', 'plugin-namespace' ); ?></label></th>
<td><input name="location_province" type="text" id="location_province" value="<?php echo get_post_meta($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="<?php echo get_post_meta($post->ID, 'location_postalcode', true); ?>" class="regular-text"></td></tr>
<tr><th><label for="location_country"><?php _e( 'Country', 'plugin-namespace' ); ?></label></th>
<td><input name="location_country" type="text" id="location_country" value="<?php echo get_post_meta($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="location_address" />
<input type="hidden" name="<?php echo $metabox['id']; ?>_fields[]" value="location_city" />
<input type="hidden" name="<?php echo $metabox['id']; ?>_fields[]" value="location_province" />
<input type="hidden" name="<?php echo $metabox['id']; ?>_fields[]" value="location_postalcode" />
<input type="hidden" name="<?php echo $metabox['id']; ?>_fields[]" value="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();
Wordpress管理エリアのカスタムフィールドでカスタム投稿タイプを並べ替える方法についてのチュートリアルを書きました。ほとんどの場合、投稿日でカスタム投稿タイプを注文するのは実際にはそうではありません。有用。
ここで見つけることができます: http://www.eggplantstudios.ca/blog/wordpress-order-custom-post-type-by-custom-field-in-the-admin-area