<?php
/**
* The Ultimate Tag Warrior Importer.
*
* @package WordPress
* @subpackage Importer
*/
/**
* Ultimate Tag Warrior Converter to 2.3 taxonomy.
*
* This converts the Ultimate Tag Warrior tags to the 2.3 WordPress taxonomy.
*
* @since 2.3.0
*/
class UTW_Import {
function header() {
echo '<div class="wrap">';
screen_icon();
echo '<h2>'.__('Import Ultimate Tag Warrior').'</h2>';
echo '<p>'.__('Steps may take a few minutes depending on the size of your database. Please be patient.').'<br /><br /></p>';
}
function footer() {
echo '</div>';
}
function greet() {
echo '<div class="narrow">';
echo '<p>'.__('Howdy! This imports tags from Ultimate Tag Warrior 3 into WordPress tags.').'</p>';
echo '<p>'.__('This has not been tested on any other versions of Ultimate Tag Warrior. Mileage may vary.').'</p>';
echo '<p>'.__('To accommodate larger databases for those tag-crazy authors out there, we have made this into an easy 5-step program to help you kick that nasty UTW habit. Just keep clicking along and we will let you know when you are in the clear!').'</p>';
echo '<p><strong>'.__('Don’t be stupid - backup your database before proceeding!').'</strong></p>';
echo '<form action="admin.php?import=utw&step=1" method="post">';
echo '<p class="submit"><input type="submit" name="submit" class="button" value="'.__('Step 1').'" /></p>';
echo '</form>';
echo '</div>';
}
function dispatch () {
if ( empty( $_GET['step'] ) ) {
$step = 0;
} else {
$step = (int) $_GET['step'];
}
if ( $step > 1 )
check_admin_referer('import-utw');
// load the header
$this->header();
switch ( $step ) {
case 0 :
$this->greet();
break;
case 1 :
$this->import_tags();
break;
case 2 :
$this->import_posts();
break;
case 3:
$this->import_t2p();
break;
case 4:
$this->cleanup_import();
break;
}
// load the footer
$this->footer();
}
function import_tags ( ) {
echo '<div class="narrow">';
echo '<p><h3>'.__('Reading UTW Tags…').'</h3></p>';
$tags = $this->get_utw_tags();
// if we didn't get any tags back, that's all there is folks!
if ( !is_array($tags) ) {
echo '<p>' . __('No Tags Found!') . '</p>';
return false;
}
else {
// if there's an existing entry, delete it
if ( get_option('utwimp_tags') ) {
delete_option('utwimp_tags');
}
add_option('utwimp_tags', $tags);
$count = count($tags);
echo '<p>' . sprintf( __ngettext('Done! <strong>%s</strong> tag were read.', 'Done! <strong>%s</strong> tags were read.', $count), $count ) . '<br /></p>';
echo '<p>' . __('The following tags were found:') . '</p>';
echo '<ul>';
foreach ( $tags as $tag_id => $tag_name ) {
echo '<li>' . $tag_name . '</li>';
}
echo '</ul>';
echo '<br />';
echo '<p>' . __('If you don’t want to import any of these tags, you should delete them from the UTW tag management page and then re-run this import.') . '</p>';
}
echo '<form action="admin.php?import=utw&step=2" method="post">';
wp_nonce_field('import-utw');
echo '<p class="submit"><input type="submit" name="submit" class="button" value="'.__('Step 2').'" /></p>';
echo '</form>';
echo '</div>';
}
function import_posts ( ) {
echo '<div class="narrow">';
echo '<p><h3>'.__('Reading UTW Post Tags…').'</h3></p>';
// read in all the UTW tag -> post settings
$posts = $this->get_utw_posts();
// if we didn't get any tags back, that's all there is folks!
if ( !is_array($posts) ) {
echo '<p>' . __('No posts were found to have tags!') . '</p>';
return false;
}
else {
// if there's an existing entry, delete it
if ( get_option('utwimp_posts') ) {
delete_option('utwimp_posts');
}
add_option('utwimp_posts', $posts);
$count = count($posts);
echo '<p>' . sprintf( __ngettext('Done! <strong>%s</strong> tag to post relationships were read.', 'Done! <strong>%s</strong> tags to post relationships were read.', $count), $count ) . '<br /></p>';
}
echo '<form action="admin.php?import=utw&step=3" method="post">';
wp_nonce_field('import-utw');
echo '<p class="submit"><input type="submit" name="submit" class="button" value="'.__('Step 3').'" /></p>';
echo '</form>';
echo '</div>';
}
function import_t2p ( ) {
echo '<div class="narrow">';
echo '<p><h3>'.__('Adding Tags to Posts…').'</h3></p>';
// run that funky magic!
$tags_added = $this->tag2post();
echo '<p>' . sprintf( __ngettext( 'Done! <strong>%s</strong> tag were added!', 'Done! <strong>%s</strong> tags were added!', $tags_added ), $tags_added ) . '<br /></p>';
echo '<form action="admin.php?import=utw&step=4" method="post">';
wp_nonce_field('import-utw');
echo '<p class="submit"><input type="submit" name="submit" class="button" value="'.__('Step 4').'" /></p>';
echo '</form>';
echo '</div>';
}
function get_utw_tags ( ) {
global $wpdb;
// read in all the tags from the UTW tags table: should be wp_tags
$tags_query = "SELECT tag_id, tag FROM " . $wpdb->prefix . "tags";
$tags = $wpdb->get_results($tags_query);
// rearrange these tags into something we can actually use
foreach ( $tags as $tag ) {
$new_tags[$tag->tag_id] = $tag->tag;
}
return $new_tags;
}
function get_utw_posts ( ) {
global $wpdb;
// read in all the posts from the UTW post->tag table: should be wp_post2tag
$posts_query = "SELECT tag_id, post_id FROM " . $wpdb->prefix . "post2tag";
$posts = $wpdb->get_results($posts_query);
return $posts;
}
function tag2post ( ) {
// get the tags and posts we imported in the last 2 steps
$tags = get_option('utwimp_tags');
$posts = get_option('utwimp_posts');
// null out our results
$tags_added = 0;
// loop through each post and add its tags to the db
foreach ( $posts as $this_post ) {
$the_post = (int) $this_post->post_id;
$the_tag = (int) $this_post->tag_id;
// what's the tag name for that id?
$the_tag = $tags[$the_tag];
// screw it, just try to add the tag
wp_add_post_tags($the_post, $the_tag);
$tags_added++;
}
// that's it, all posts should be linked to their tags properly, pending any errors we just spit out!
return $tags_added;
}
function cleanup_import ( ) {
delete_option('utwimp_tags');
delete_option('utwimp_posts');
$this->done();
}
function done ( ) {
echo '<div class="narrow">';
echo '<p><h3>'.__('Import Complete!').'</h3></p>';
echo '<p>' . __('OK, so we lied about this being a 5-step program! You’re done!') . '</p>';
echo '<p>' . __('Now wasn’t that easy?') . '</p>';
echo '</div>';
}
function UTW_Import ( ) {
// Nothing.
}
}
// create the import object
$utw_import = new UTW_Import();
// add it to the import page!
register_importer('utw', 'Ultimate Tag Warrior', __('Import Ultimate Tag Warrior tags into WordPress tags.'), array($utw_import, 'dispatch'));
?>