function view_history()
{
// Get list of past imports
$ids = TI_Import::get_list();
if (!empty($ids)) {
krsort($ids);
}
$this->postbox_start(__('Import History'), 'history');
?>
<?php
foreach ((array) $ids as $id) {
$import = TI_Import::get($id);
// Skip import if it's invalid...this has sometimes happened with invalid unserialize() calls - see notes for ti_delete
if (!$import || is_wp_error($import)) {
continue;
}
$date_link = "<a href='" . esc_attr(add_query_arg(array('noheader' => null, 'page' => 'ti_display', 'id' => $import->_id))) . "'>" . date("M d, Y G:i:s", $import->timestamp) . "</a>";
$delete_link = "<a class='ti_delete_link' href='" . esc_attr(add_query_arg(array('noheader' => 'true', 'cmd' => 'delete', 'id' => $import->_id))) . "'>" . __('Delete') . "</a>";
if ($import->status == 'COMPLETE' || $import->status == 'ERROR') {
$undo_link = " | <a class='ti_undo_link' href='" . esc_attr(add_query_arg(array('noheader' => 'true', 'cmd' => 'undo', 'id' => $import->_id))) . "'>" . __('Undo') . "</a>";
} else {
$undo_link = "";
}
$rows[] = array('class' => null, 'data' => array($import->get_status(false, true), $import->filename, $date_link, $import->lines_total, $delete_link . $undo_link));
}
if (!isset($rows)) {
$rows[] = array('class' => null, 'data' => array(__('No imports', 'turbocsv'), '', '', '', ''));
}
$html = "<div class='ti-large-scroll'>" . $this->option_table(array(__('Status'), __('File Name'), __('Date'), __('Lines'), __('Action')), $rows) . "</div>";
echo $html;
?>
<?php
$this->postbox_end();
}
/**
* Undo an entire import. All newly-created posts and associated comments are deleted.
* Any categories and tags that were created during the import are also
* deleted, but only if they have no reference count once the posts/comments are gone.
*
* For posts that were updated (rather than created), the last revision is restored.
* If no revisions are available then the post is deleted.
*
* The import profile is retained and is not deleted, but the status is set to 'UNDO'.
*
* The instance will update itself back to the options database.
*/
function undo($id)
{
global $current_user, $blog_id;
$original_blog_id = $blog_id;
$import = TI_Import::get($id);
if ($import === false) {
return new WP_Error('ERROR', sprintf(__('Unable to read import id %s for undo'), $id));
}
get_currentuserinfo();
$import->log(__("Undo started by: {$current_user->user_login}"), 'INFO');
$import->import_start();
foreach ((array) $import->get_imported_posts() as $post) {
// Switch blogs if needed
if (is_multisite() && isset($post['blog_id']) && $post['blog_id'] != $blog_id) {
switch_to_blog($post['blog_id']);
}
// If post was updated during import, and revisions is on, then try to roll back to previous version
if (defined('WP_POST_REVISIONS') && WP_POST_REVISIONS && isset($post['updated']) && $post['updated'] && isset($post['revision_id'])) {
$result = wp_restore_post_revision($post['revision_id']);
if (is_wp_error($result)) {
$import->log(sprintf(__("Unable to restore original version of post %s (%s): %s"), $post['post_title'], $post['post_id'], $result->get_error_message()));
}
if (!$result) {
$import->log(sprintf(__("Unable to restore original version of post %s (%s)"), $post['post_title'], $post['post_id']));
}
} else {
// If no revisions, or post was created during import, then delete it
$result = wp_delete_post($post['post_id']);
if (is_wp_error($result)) {
$import->log(sprintf(__("Error deleting post %s (%s): %s"), $post['post_title'], $post['post_id'], $result->get_error_message()));
}
}
}
// NOTE: counts seem to be incorrect for custom taxonomies - they include deleted posts - see wordpress trac #14084, #14073, #14392
// Delete tags, categories and custom taxonomies
foreach ((array) $import->imported_terms as $taxonomy => $terms) {
foreach ($terms as $term) {
// Switch blogs if needed
if (is_multisite() && isset($term->blog_id) && $term->blog_id != $blog_id) {
switch_to_blog($term->blog_id);
}
// Get current name in case it's changed
$wp_term = get_term($term->term_id, $taxonomy);
if (!is_wp_error($wp_term) && $wp_term) {
// get_term() returns either wp_error or null
$term->name = $wp_term->name;
}
// Term doesn't exist
if (!$wp_term || is_wp_error($wp_term)) {
$import->log(sprintf(__('Could not delete term "%s" in taxonomy "%s" because it no longer exists'), $term->name, $taxonomy), 'WARNING');
continue;
}
// Term still in use
if ($wp_term->count > 0) {
$import->log(sprintf(__('Term "%s" in taxonomy "%s" was not deleted because it is still in use'), $term->name, $taxonomy), 'WARNING');
continue;
}
// Delete term
$result = wp_delete_term($term->term_id, $taxonomy);
if (!$result) {
$import->log(sprintf(__('Uknown error deleting term "%s" in taxonomy "%s"'), $term->name, $taxonomy), 'ERROR');
}
if (is_wp_error($result)) {
$import->log(sprintf(__('Error deleting term "%s" in taxonomy "%s" : "%s"'), $term->name, $taxonomy, $result->get_error_message()), 'ERROR');
}
}
}
// Switch back to original blog before writing out the import logs to the database
if ($original_blog_id != $blog_id) {
switch_to_blog($original_blog_id);
}
// Update terms cache
$import->clean_term_cache();
// Set status and save back to db
$import->log(__('Undo finished.'), 'INFO');
$import->status = 'UNDO';
$import->save();
return true;
}