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<?php
class STP_Import {
function header() {
echo '<div class="wrap">';
echo '<h2>'.__('Import Simple Tagging').'</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 Simple Tagging 1.6.2 into WordPress tags.').'</p>';
echo '<p>'.__('This has not been tested on any other versions of Simple Tagging. Mileage may vary.').'</p>';
echo '<p>'.__('To accommodate larger databases for those tag-crazy authors out there, we have made this into an easy 4-step program to help you kick that nasty Simple Tagging 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=stp&step=1" method="post">';
wp_nonce_field('import-stp');
echo '<p class="submit"><input type="submit" name="submit" value="'.__('Step 1').'" /></p>';
echo '</form>';
echo '</div>';
}
function dispatch () {
if ( empty( $_GET['step'] ) ) {
$step = 0;
} else {
$step = (int) $_GET['step'];
}
// load the header
$this->header();
switch ( $step ) {
case 0 :
$this->greet();
break;
case 1 :
check_admin_referer('import-stp');
$this->import_posts();
break;
case 2:
check_admin_referer('import-stp');
$this->import_t2p();
break;
case 3:
check_admin_referer('import-stp');
$this->cleanup_import();
break;
}
// load the footer
$this->footer();
}
function import_posts ( ) {
echo '<div class="narrow">';
echo '<p><h3>'.__('Reading STP Post Tags…').'</h3></p>';
// read in all the STP tag -> post settings
$posts = $this->get_stp_posts();
// if we didn't get any tags back, that's all there is folks!
if ( !is_array($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('stpimp_posts') ) {
delete_option('stpimp_posts');
}
add_option('stpimp_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=stp&step=2" method="post">';
wp_nonce_field('import-stp');
echo '<p class="submit"><input type="submit" name="submit" value="'.__('Step 2').'" /></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 was added!', 'Done! <strong>%s</strong> tags were added!', $tags_added), $tags_added ) . '<br /></p>';
echo '<form action="admin.php?import=stp&step=3" method="post">';
wp_nonce_field('import-stp');
echo '<p class="submit"><input type="submit" name="submit" value="'.__('Step 3').'" /></p>';
echo '</form>';
echo '</div>';
}
function get_stp_posts ( ) {
global $wpdb;
// read in all the posts from the STP post->tag table: should be wp_post2tag
$posts_query = "SELECT post_id, tag_name FROM " . $wpdb->prefix . "stp_tags";
$posts = $wpdb->get_results($posts_query);
return $posts;
}
function tag2post ( ) {
global $wpdb;
// get the tags and posts we imported in the last 2 steps
$posts = get_option('stpimp_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 = $wpdb->escape($this_post->tag_name);
// 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('stpimp_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 4-step program! You’re done!') . '</p>';
echo '<p>' . __('Now wasn’t that easy?') . '</p>';
echo '</div>';
}
function STP_Import ( ) {
// Nothing.
}
}
// create the import object
$stp_import = new STP_Import();
// add it to the import page!
register_importer('stp', 'Simple Tagging', __('Import Simple Tagging tags into WordPress tags.'), array($stp_import, 'dispatch'));
?>
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