Wie kann ich eine WordPress Seite Duplizieren?

				
					/*

* Function for post duplication. Dups appear as drafts. The user is redirected to the edit screen

*/

function rd_duplicate_post_as_draft(){

global $wpdb;

if (! ( isset( $_GET['post']) || isset( $_POST['post'])  || ( isset($_REQUEST['action']) && 'rd_duplicate_post_as_draft' == $_REQUEST['action'] ) ) ) {

wp_die('No post to duplicate has been supplied!');

}

 

/*

* Nonce verification

*/

if ( !isset( $_GET['duplicate_nonce'] ) || !wp_verify_nonce( $_GET['duplicate_nonce'], basename( __FILE__ ) ) )

return;

 

/*

* get the original post id

*/

$post_id = (isset($_GET['post']) ? absint( $_GET['post'] ) : absint( $_POST['post'] ) );

/*

* and all the original post data then

*/

$post = get_post( $post_id );

 

/*

* if you don't want current user to be the new post author,

* then change next couple of lines to this: $new_post_author = $post->post_author;

*/

$current_user = wp_get_current_user();

$new_post_author = $current_user->ID;

 

/*

* if post data exists, create the post duplicate

*/

if (isset( $post ) && $post != null) {

 

/*

* new post data array

*/

$args = array(

'comment_status' => $post->comment_status,

'ping_status'    => $post->ping_status,

'post_author'    => $new_post_author,

'post_content'   => $post->post_content,

'post_excerpt'   => $post->post_excerpt,

'post_name'      => $post->post_name,

'post_parent'    => $post->post_parent,

'post_password'  => $post->post_password,

'post_status'    => 'draft',

'post_title'     => $post->post_title,

'post_type'      => $post->post_type,

'to_ping'        => $post->to_ping,

'menu_order'     => $post->menu_order

);

 

/*

* insert the post by wp_insert_post() function

*/

$new_post_id = wp_insert_post( $args );

 

/*

* get all current post terms and set them to the new post draft

*/

$taxonomies = get_object_taxonomies($post->post_type); // returns array of taxonomy names for post type, ex array("category", "post_tag");

foreach ($taxonomies as $taxonomy) {

$post_terms = wp_get_object_terms($post_id, $taxonomy, array('fields' => 'slugs'));

wp_set_object_terms($new_post_id, $post_terms, $taxonomy, false);

}

 

/*

* duplicate all post meta just in two SQL queries

*/

$post_meta_infos = $wpdb->get_results("SELECT meta_key, meta_value FROM $wpdb->postmeta WHERE post_id=$post_id");

if (count($post_meta_infos)!=0) {

$sql_query = "INSERT INTO $wpdb->postmeta (post_id, meta_key, meta_value) ";

foreach ($post_meta_infos as $meta_info) {

$meta_key = $meta_info->meta_key;

if( $meta_key == '_wp_old_slug' ) continue;

$meta_value = addslashes($meta_info->meta_value);

$sql_query_sel[]= "SELECT $new_post_id, '$meta_key', '$meta_value'";

}

$sql_query.= implode(" UNION ALL ", $sql_query_sel);

$wpdb->query($sql_query);

}

 

/*

* finally, redirect to the edit post screen for the new draft

*/

wp_redirect( admin_url( 'post.php?action=edit&post=' . $new_post_id ) );

exit;

} else {

wp_die('Post creation failed, could not find original post: ' . $post_id);

}

}

add_action( 'admin_action_rd_duplicate_post_as_draft', 'rd_duplicate_post_as_draft' );

 

/*

* Add the duplicate link to action list for post_row_actions

*/

function rd_duplicate_post_link( $actions, $post ) {

if (current_user_can('edit_posts')) {

$actions['duplicate'] = '<a href="' . wp_nonce_url('admin.php?action=rd_duplicate_post_as_draft&post=' . $post->ID, basename(__FILE__), 'duplicate_nonce' ) . '" title="Duplicate this item" rel="permalink">Duplicate</a>';

}

return $actions;

}

add_filter('page_row_actions', 'rd_duplicate_post_link', 10, 2);