/**
* check to see if file exists from twig
* @param $file
* @param $twig
* @return bool
*/
public static function twig_asset_exists($file, $twig)
{
try {
$twig->loadTemplate($file);
return true;
} catch (Exception $e) {
if (class_exists('HW_Logger')) {
HW_Logger::add_debug($e->getFile() . ':' . $e->getLine() . '=>' . $e->getMessage());
}
return false;
}
}
/**
* export wxr data for the module
* @param null $xml
*/
public function _export_wxr_data($xml = null)
{
//update new data belong to this module into pre-shortcodes using by installer
add_shortcode('hw_image', array($this, '_parse_image_shortcode'));
try {
//fetch category, tag,terms
$this->fetch_terms($xml);
$this->fetch_authors($xml);
//fetch authors to create new
$this->export_wxr_data($xml);
} catch (Exception $e) {
HW_Logger::log_file($e->getMessage());
HW_Logger::log_file($e->getFile() . ':' . $e->getLine());
HW_Logger::log_file($e->getTraceAsString());
//An array of the backtrace()
}
}
static function _test()
{
HW_Logger::log_file('------------');
}
function __print($d)
{
HW_Logger::out($d);
}
/**
* cast to simplexmlelement object
* @param $file
* @param bool $break_error
* @return WP_Error
*/
public static function read_simplexml_object($file, $break_error = true)
{
$internal_errors = libxml_use_internal_errors(true);
$old_value = null;
if (function_exists('libxml_disable_entity_loader')) {
$old_value = libxml_disable_entity_loader(true);
}
if ($file instanceof SimpleXMLElement) {
$xml = $file;
} elseif ($file instanceof DOMDocument) {
#$xml = simplexml_import_dom($file, 'SimpleXMLElement');
//safe way
$xml = simplexml_load_string($file->saveXML(), 'SimpleXMLElement', LIBXML_NOCDATA);
//third param can be: LIBXML_NOCDATA | LIBXML_NOBLANKS
} elseif (is_string($file)) {
$dom = new DOMDocument();
if (file_exists($file)) {
$xml_content = file_get_contents($file);
} elseif (is_string($file)) {
$xml_content = $file;
}
$success = $xml_content ? $dom->loadXML($xml_content) : false;
if (!$success || isset($dom->doctype)) {
HW_Logger::log_file(libxml_get_errors());
//log errors
if ($break_error) {
return new WP_Error('SimpleXML_parse_error', __('There was an error when reading this WXR file', 'hw-importer'), libxml_get_errors());
} else {
return false;
}
}
$xml = simplexml_import_dom($dom);
unset($dom);
}
if (!is_null($old_value)) {
libxml_disable_entity_loader($old_value);
}
// halt if loading produces an error
if (empty($xml)) {
if ($break_error) {
return new WP_Error('SimpleXML_parse_error', __('There was an error when reading this WXR file', 'hw-importer'), libxml_get_errors());
} else {
return false;
}
}
//store namespace
$namespaces = self::valid_namespaces($xml);
return (object) array('xml' => $xml, 'namespaces' => $namespaces);
}
