問題描述
我做了一個名為’portfolio’ 的自定義帖子類型，但我想將其更改為’projects’ 。為了安全地更改名稱並阻止自定義帖子類型的帖子在信息中心中消失，我需要採取哪些具體步驟？
注意：portfolio 中已經有帖子，所以我不能用 projects 來切換 portfolio 。
/* Register Portfolio Post Type */
add_action('init', 'create_portfolio');
function create_portfolio() {
$labels = array(
'name' => __('Portfolio', 'post type general name'),
'singular_name' => __('Project', 'post type singular name'),
'add_new' => __('Add New', 'portfolio item'),
'add_new_item' => __('Add New Project'),
'edit_item' => __('Edit Project'),
'new_item' => __('New Project'),
'view_item' => __('View Project'),
'search_items' => __('Search Projects'),
'not_found' => __('Nothing found'),
'not_found_in_trash' => __('Nothing found in Trash'),
'parent_item_colon' => ''
);
$args = array(
'labels' => $labels,
'public' => true,
'publicly_queryable' => true,
'show_ui' => true,
'query_var' => true,
'rewrite' => true,
'capability_type' => 'post',
'hierarchical' => false,
'menu_position' => null,
'supports' => array('title','editor','thumbnail')
);
register_post_type( 'portfolio' , $args );
}
/* Register Skills Taxonomy */
register_taxonomy("Skills", array("portfolio"), array("hierarchical" => true, "label" => "Skills", "singular_label" => "Skill", "rewrite" => true));
/* Add Fields */
add_action("admin_init", "add_portfolio_fields");
function add_portfolio_fields(){
add_meta_box("website_url", "Website URL", "website_url", "portfolio", "side", "low");
add_meta_box("view_more", "View More", "view_more", "portfolio", "side", "low");
add_meta_box("screenshot_name", "Screenshot Name", "screenshot_name", "portfolio", "side", "low");
add_meta_box("thumbnail_name", "Thumbnail Name", "thumbnail_name", "portfolio", "side", "low");
add_meta_box("thumbnail_alt", "Thumbnail Alt", "thumbnail_alt", "portfolio", "side", "low");
}
function website_url(){
global $post;
$custom = get_post_custom($post->ID);
$website_url = $custom["website_url"][0];
?>
<label>Website URL:</label>
<input size="50" name="website_url" value="<?php echo $website_url; ?>" />
<?php
}
function view_more() {
global $post;
$custom = get_post_custom($post->ID);
$view_more = $custom["view_more"][0];
?>
<label>View More:</label>
<input size="50" name="view_more" value="<?php echo $view_more; ?>" />
<?php
}
function screenshot_name() {
global $post;
$custom = get_post_custom($post->ID);
$screenshot_name = $custom["screenshot_name"][0];
?>
<label>Screenshot Name:</label>
<input name="screenshot_name" value="<?php echo $screenshot_name; ?>" />
<?php
}
function thumbnail_name() {
global $post;
$custom = get_post_custom($post->ID);
$thumbnail_name = $custom["thumbnail_name"][0];
?>
<label>Thumbnail Name:</label>
<input name="thumbnail_name" value="<?php echo $thumbnail_name; ?>" />
<?php
}
function thumbnail_alt() {
global $post;
$custom = get_post_custom($post->ID);
$thumbnail_alt = $custom["thumbnail_alt"][0];
?>
<label>Thumbnail Alt:</label>
<input name="thumbnail_alt" value="<?php echo $thumbnail_alt; ?>" />
<?php
}
add_action('save_post', 'save_portfolio_details');
function save_portfolio_details(){
global $post;
update_post_meta($post->ID, "website_url", $_POST["website_url"]);
update_post_meta($post->ID, "view_more", $_POST["view_more"]);
update_post_meta($post->ID, "screenshot_name", $_POST["screenshot_name"]);
update_post_meta($post->ID, "thumbnail_name", $_POST["thumbnail_name"]);
update_post_meta($post->ID, "thumbnail_alt", $_POST["thumbnail_alt"]);
}
/* Custom Columns */
add_action("manage_posts_custom_column", "portfolio_custom_columns");
add_filter("manage_edit-portfolio_columns", "portfolio_edit_columns");
function portfolio_edit_columns($columns){
$columns = array(
"cb" => "<input type="checkbox" />",
"title" => "Project Title",
"description" => "Description",
);
return $columns;
}
function portfolio_custom_columns($column){
global $post;
switch ($column) {
case "description":
the_excerpt();
break;
}
}
最佳解決方案
如果您的投資組閤中沒有任何職位。
這真的很簡單將”Portfolio” 重新命名為”Projects” 。你會失去任何東西，改變名字。
編輯：
嘗試使用此插件 http://wordpress.org/extend/plugins/ptypeconverter/安全導出當前帖子並將其導入新的自定義帖子類型。
所以步驟是：
1 下載並使用插件：http://wordpress.org/extend/plugins/ptypeconverter/
2 複製您的自定義帖子類型”portfolio” 文件保存。稱它為 portfolio_post_typeBACKUP.php
3 現在您確定此方法失敗。你可以恢復它。
4 將”portfolio” 更改為”projects”
5 用插件和中提琴導入帖子！
希望這個工作。
次佳解決方案
您也可以直接使用 MySQL 。
UPDATE `wp_posts`
SET
# Update the post_type column
`post_type` = REPLACE(`post_type`,'name_of_old_post_type','name_of_new_post_type'),
# Update the urls
`guid` = REPLACE(`guid`,'name_of_old_post_type','name_of_new_post_type')
WHERE `post_type` = 'name_of_old_post_type'
兩件事要注意：
-
您需要更新代碼中對此帖子類型的任何引用 (例如，模板，CMB2 定義或分類定義) 。
-
如果您已經在
wp_postmeta中存儲了任何對序列化數組中的引用的引用，那麼您不需要執行簡單的 UPDATE /REPLACE，因為它將會被炸燬！那麼，除非新舊帖子類型的字符串是完全相同的長度。
第三種解決方案
擴展 Will 的答案有一點進一步…，特別是如果你從你的插件做：
global $wpdb;
$old_post_types = array('old_type' => 'new_type');
foreach ($old_post_types as $old_type=>$type) {
$wpdb->query( $wpdb->prepare( "UPDATE {$wpdb->posts} SET post_type = REPLACE(post_type, %s, %s)
WHERE post_type LIKE %s", $old_type, $type, $old_type ) );
$wpdb->query( $wpdb->prepare( "UPDATE {$wpdb->posts} SET guid = REPLACE(guid, %s, %s)
WHERE guid LIKE %s", "post_type={$old_type}", "post_type={$type}", "%post_type={$type}%" ) );
$wpdb->query( $wpdb->prepare( "UPDATE {$wpdb->posts} SET guid = REPLACE(guid, %s, %s)
WHERE guid LIKE %s", "/{$old_type}/", "/{$type}/", "%/{$old_type}/%" ) );
}
這裏的更改是不直接替換 guid 中的舊類型，只有當”post_type=old_type” 或”/old_type/” 存在時才更換。這樣可以避免錯誤地替換有效的 s 。。 (例如您的自定義帖子類型是投資組合，一個頁面的 lug lug 也有投資組合)
另一個選擇是做這樣的事情：
global $wpdb, $wp_rewrite;
foreach ($old_post_types as $old_type=>$type) {
$q = 'numberposts=-1&post_status=any&post_type='.$old_type;
$items = get_posts($q);
foreach ($items as $item) {
$update['ID'] = $item->ID;
$update['post_type'] = $type;
wp_update_post( $update );
}
}
$wp_rewrite->flush_rules();
HTH！
參考文獻
注：本文內容整合自 Google/Baidu/Bing 輔助翻譯的英文資料結果。如果您對結果不滿意，可以加入我們改善翻譯效果：薇曉朵技術論壇。