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145 lines
4.0 KiB
PHP
145 lines
4.0 KiB
PHP
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<?php
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error_reporting(E_ALL);
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class WP_Categories_to_Tags {
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var $categories_to_convert = array();
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var $all_categories = array();
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function header() {
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print '<div class="wrap">';
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print '<h2>' . __('Convert Categories to Tags') . '</h2>';
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}
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function footer() {
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print '</div>';
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}
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function populate_all_categories() {
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$this->all_categories =& get_categories('hide_empty=0&hierarchal=0');
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}
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function welcome() {
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print '<div class="narrow">';
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print '<p>' . __('Howdy! This converter allows you to selectively convert existing categories to tags. To get started, check the checkboxes of the categories you wish to be converted, then click the Convert button.') . '</p>';
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print '<p>' . __('Keep in mind that if you convert a category with child categories, those child categories get their parent setting removed, so they\'re in the root.') . '</p>';
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$this->categories_form();
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print '</div>';
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}
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function categories_form() {
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$this->populate_all_categories();
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print '<form action="admin.php?import=wp-cat2tag&step=2" method="post">';
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print '<ul style="list-style:none">';
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$hier = _get_category_hierarchy();
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foreach ($this->all_categories as $category) {
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if ((int) $category->category_parent == 0) {
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print '<li><label><input type="checkbox" name="cats_to_convert[]" value="' . intval($category->cat_ID) . '" /> ' . $category->cat_name . ' (' . $category->category_count . ')</label>';
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if (isset($hier[$category->cat_ID])) {
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$this->_category_children($category, $hier);
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}
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print '</li>';
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}
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}
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print '</ul>';
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print '<p class="submit"><input type="submit" name="submit" value="' . __('Convert »') . '" /></p>';
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print '</form>';
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}
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function _category_children($parent, $hier) {
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print '<ul style="list-style:none">';
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foreach ($hier[$parent->cat_ID] as $child_id) {
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$child =& get_category($child_id);
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print '<li><label><input type="checkbox" name="cats_to_convert[]" value="' . intval($child->cat_ID) . '" /> ' . $child->cat_name . ' (' . $child->category_count . ')</label>';
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if (isset($hier[$child->cat_ID])) {
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$this->_category_children($child, $hier);
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}
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print '</li>';
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}
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print '</ul>';
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}
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function convert_them() {
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global $wpdb;
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if (!isset($_POST['cats_to_convert']) || !is_array($_POST['cats_to_convert'])) {
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print '<div class="narrow">';
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print '<p>' . sprintf(__('Uh, oh. Something didn\'t work. Please <a href="%s">try again</a>.'), 'admin.php?import=wp-cat2tag') . '</p>';
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print '</div>';
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}
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$this->categories_to_convert = $_POST['cats_to_convert'];
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$hier = _get_category_hierarchy();
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print '<ul>';
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foreach ($this->categories_to_convert as $cat_id) {
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$cat_id = (int) $cat_id;
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print '<li>' . __('Converting category') . ' #' . $cat_id . '... ';
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if (!category_exists($cat_id)) {
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_e('Category doesn\'t exist!');
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} else {
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$category =& get_category($cat_id);
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if ($category->link_count > 0) {
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$type = $category->type | TAXONOMY_TAG;
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} else {
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$type = TAXONOMY_TAG;
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}
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$wpdb->query("UPDATE $wpdb->categories SET type = '$type' WHERE cat_ID = '{$category->cat_ID}'");
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$wpdb->query("UPDATE $wpdb->post2cat SET rel_type = 'tag' WHERE cat_ID = '{$category->cat_ID}'");
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$wpdb->query("UPDATE $wpdb->categories SET tag_count = '{$category->category_count}', category_count = '0' WHERE cat_ID = '{$category->cat_ID}'");
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_e('Converted successfully.');
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}
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print '</li>';
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}
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print '</ul>';
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}
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function init() {
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if (!isset($_GET['step'])) {
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$step = 1;
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} else {
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$step = (int) $_GET['step'];
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}
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$this->header();
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switch ($step) {
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case 1:
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$this->welcome();
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break;
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case 2:
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$this->convert_them();
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break;
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}
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$this->footer();
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}
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}
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$wp_cat2tag_importer = new WP_Categories_to_Tags;
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register_importer('wp-cat2tag', __('Categories to Tags Converter'), __('Convert existing categories to tags, selectively.'), array(&$wp_cat2tag_importer, 'init'));
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?>
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