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