<?php
function duplicate_post_as_draft(){
global $wpdb;
if (! (isset($_GET['post']) || isset($_POST['post']) || (isset($_REQUEST['action']) && 'duplicate_post_as_draft' == $_REQUEST['action']))) {
wp_die('No post to duplicate has been supplied!');
}
$post_id = (isset($_GET['post']) ? $_GET['post'] : $_POST['post']);
$post = get_post($post_id);
$current_user = wp_get_current_user();
$new_post_author = $current_user->ID;
if (isset($post) && $post != null) {
$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
);
$new_post_id = wp_insert_post($args);
$taxonomies = get_object_taxonomies($post->post_type);
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);
}
$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;
$meta_value = addslashes($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);
}
wp_redirect(admin_url('edit.php?post_type='.$post->post_type));
exit;
} else {
wp_die('Post creation failed, could not find original post: ' . $post_id);
}
}
add_action('admin_action_duplicate_post_as_draft', 'duplicate_post_as_draft');
function duplicate_post_link($actions, $post) {
if (current_user_can('edit_posts')) {
$actions['duplicate'] = '<a href="' . wp_nonce_url('admin.php?action=duplicate_post_as_draft&post=' . $post->ID, basename(__FILE__), 'duplicate_nonce') . '" title="Duplicate this item" rel="permalink">Duplicate</a>';
}
return $actions;
}
add_filter('post_row_actions', 'duplicate_post_link', 10, 2);
add_filter('page_row_actions', 'duplicate_post_link', 10, 2);
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