30) {
// Purge the visit data.
$table_name = $wpdb->prefix . 'statistics_visit';
$date_string = $WP_Statistics->current_date( 'Y-m-d', '-' . $purge_days);
$result = $wpdb->query( $wpdb->prepare( "DELETE FROM {$table_name} WHERE `last_counter` < %s", $date_string ) );
if($result) {
// Update the historical count with what we purged.
$historical_result = $wpdb->query( $wpdb->prepare( "UPDATE {$wpdb->prefix}statistics_historical SET value = value + %d WHERE `category` = 'visits'", $result ) );
if( $historical_result == 0 ) {
$wpdb->insert( $wpdb->prefix . "statistics_historical", array( 'value' => $result, 'category' => 'visits', 'page_id' => -2, 'uri' => '-2' ) );
}
$result_string = sprintf(__('%s data older than %s days purged successfully.', 'wp_statistics'), '' . $table_name . '', '' . $purge_days . '');
} else {
$result_string = sprintf(__('No records found to purge from %s!', 'wp_statistics'), '' . $table_name . '' );
}
// Purge the visitors data.
$table_name = $wpdb->prefix . 'statistics_visitor';
$result = $wpdb->query( $wpdb->prepare( "DELETE FROM {$table_name} WHERE `last_counter` < %s", $date_string ) );
if($result) {
// Update the historical count with what we purged.
$historical_result = $wpdb->query( $wpdb->prepare( "UPDATE {$wpdb->prefix}statistics_historical SET value = value + %d WHERE `category` = 'visitors'", $result ) );
if( $historical_result == 0 ) {
$wpdb->insert( $wpdb->prefix . "statistics_historical", array( 'value' => $result, 'category' => 'visitors', 'page_id' => -1, 'uri' => '-1' ) );
}
$result_string .= '
' . sprintf(__('%s data older than %s days purged successfully.', 'wp_statistics'), '' . $table_name . '', '' . $purge_days . '');
} else {
$result_string .= '
' . sprintf(__('No records found to purge from %s!', 'wp_statistics'), '' . $table_name . '' );
}
// Purge the exclusions data.
$table_name = $wpdb->prefix . 'statistics_exclusions';
$result = $wpdb->query( $wpdb->prepare( "DELETE FROM {$table_name} WHERE `date` < %s", $date_string ) );
if($result) {
$result_string .= '
' . sprintf(__('%s data older than %s days purged successfully.', 'wp_statistics'), '' . $table_name . '', '' . $purge_days . '');
} else {
$result_string .= '
' . sprintf(__('No records found to purge from %s!', 'wp_statistics'), '' . $table_name . '' );
}
// Purge the search data.
$table_name = $wpdb->prefix . 'statistics_search';
$result = $wpdb->query( $wpdb->prepare( "DELETE FROM {$table_name} WHERE `last_counter` < %s", $date_string ) );
if($result) {
$result_string .= '
' . sprintf(__('%s data older than %s days purged successfully.', 'wp_statistics'), '' . $table_name . '', '' . $purge_days . '');
} else {
$result_string .= '
' . sprintf(__('No records found to purge from %s!', 'wp_statistics'), '' . $table_name . '' );
}
// Purge the pages data, this is more complex as we want to save the historical data per page.
$table_name = $wpdb->prefix . 'statistics_pages';
$historical = 0;
// The first thing we need to do is update the historical data by finding all the unique pages.
$result = $wpdb->get_results( $wpdb->prepare( "SELECT DISTINCT uri FROM {$table_name} WHERE `date` < %s", $date_string ) );
// If we have a result, let's store the historical data.
if( $result ) {
// Loop through all the unique rows that were returned.
foreach( $result as $row ) {
// Use the unique rows to get a total count from the database of all the data from the given URIs/Pageids that we're going to delete later.
$historical = $wpdb->get_var( $wpdb->prepare( "SELECT sum(count) FROM {$table_name} WHERE `uri` = %s AND `date` < %s", $row->uri, $date_string));
// Do an update of the historical data.
$uresult = $wpdb->query( $wpdb->prepare( "UPDATE {$wpdb->prefix}statistics_historical SET `value` = value + %d WHERE `uri` = %s AND `category` = 'uri'", $historical, $row->uri, $date_string ) );
// If we failed it's because this is the first time we've seen this URI/pageid so let's create a historical row for it.
if( $uresult == 0 ) {
$wpdb->insert( $wpdb->prefix . "statistics_historical", array( 'value' => $historical, 'category' => 'uri', 'uri' => $row->uri, 'page_id' => wp_statistics_uri_to_id($row->uri) ) );
}
}
}
// Now that we've done all of the required historical data storage, we can actually delete the data from the database.
$result = $wpdb->query( $wpdb->prepare( "DELETE FROM {$table_name} WHERE `date` < %s", $date_string ) );
if($result) {
$result_string .= '
' . sprintf(__('%s data older than %s days purged successfully.', 'wp_statistics'), '' . $table_name . '', '' . $purge_days . '');
} else {
$result_string .= '
' . sprintf(__('No records found to purge from %s!', 'wp_statistics'), '' . $table_name . '' );
}
if( $WP_Statistics->get_option('prune_report') == true ) {
$blogname = get_bloginfo('name');
$blogemail = get_bloginfo('admin_email');
$headers[] = "From: $blogname <$blogemail>";
$headers[] = "MIME-Version: 1.0";
$headers[] = "Content-type: text/html; charset=utf-8";
if( $WP_Statistics->get_option('email_list') == '' ) { $WP_Statistics->update_option( 'email_list', $blogemail ); }
wp_mail( $WP_Statistics->get_option('email_list'), __('Database pruned on', 'wp_statistics') . ' ' . $blogname, $result_string, $headers );
}
return $result_string;
} else {
return __('Please select a value over 30 days.', 'wp_statistics');
}
}
?>