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Use own category_exists() function, and only list categories to convert. fixes #4107
git-svn-id: http://svn.automattic.com/wordpress/trunk@5229 1a063a9b-81f0-0310-95a4-ce76da25c4cd
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@ -14,7 +14,9 @@ class WP_Categories_to_Tags {
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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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global $wpdb;
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$this->all_categories = $wpdb->get_results("SELECT * FROM $wpdb->categories WHERE (type & ~ " . TAXONOMY_TAG . ") != 0 ORDER BY cat_name ASC");
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}
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function welcome() {
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@ -70,6 +72,20 @@ class WP_Categories_to_Tags {
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print '</ul>';
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}
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function _category_exists($cat_id) {
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global $wpdb;
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$cat_id = (int) $cat_id;
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$maybe_exists = $wpdb->get_results("SELECT cat_ID from $wpdb->categories WHERE cat_ID = '$cat_id'");
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if (count($maybe_exists) > 0) {
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return true;
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} else {
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return false;
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}
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}
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function convert_them() {
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global $wpdb;
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@ -89,7 +105,7 @@ class WP_Categories_to_Tags {
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print '<li>' . __('Converting category') . ' #' . $cat_id . '... ';
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if (!category_exists($cat_id)) {
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if (!$this->_category_exists($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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@ -100,11 +116,19 @@ class WP_Categories_to_Tags {
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$type = TAXONOMY_TAG;
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}
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// Set the category itself to $type from above
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$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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// Set relationships in post2cat to 'tag', category_count becomes tag_count
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$wpdb->query("UPDATE $wpdb->post2cat SET rel_type = 'tag' WHERE category_ID = '{$category->cat_ID}'");
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$wpdb->query("UPDATE $wpdb->categories SET tag_count = '{$category->category_count}', category_count = '0' WHERE cat_ID = '{$category->cat_ID}'");
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// Set all parents to 0 (root-level) if their parent was the converted tag
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$wpdb->query("UPDATE $wpdb->categories SET category_parent = 0 WHERE category_parent = '{$category->cat_ID}'");
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// Clean the cache
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clean_category_cache($category->cat_ID);
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_e('Converted successfully.');
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}
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@ -112,8 +136,6 @@ class WP_Categories_to_Tags {
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}
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print '</ul>';
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clean_category_cache();
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}
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function init() {
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