/**
* Gets instance of a singleton class
* @return XmlImportConfig
*/
public static function getInstance()
{
//if (is_null(self::$instance)) {
self::$instance = new self();
self::$instance->init();
//}
return self::$instance;
}
protected function init()
{
parent::init();
error_reporting(0);
//PMXI_Plugin::$session = PMXI_Session::get_instance();
if ('PMXI_Admin_Manage' == PMXI_Plugin::getInstance()->getAdminCurrentScreen()->base) {
// prereqisites are not checked when flow control is deligated
$id = $this->input->get('id');
$this->data['import'] = $import = new PMXI_Import_Record();
if (!$id or $import->getById($id)->isEmpty()) {
// specified import is not found
wp_redirect(add_query_arg('page', 'pmxi-admin-manage', admin_url('admin.php')));
die;
}
$this->isWizard = false;
} else {
$action = PMXI_Plugin::getInstance()->getAdminCurrentScreen()->action;
$this->_step_ready($action);
$this->isInline = 'process' == $action;
}
XmlImportConfig::getInstance()->setCacheDirectory(sys_get_temp_dir());
// preserve id parameter as part of baseUrl
$id = $this->input->get('id') and $this->baseUrl = add_query_arg('id', $id, $this->baseUrl);
$this->baseUrl = apply_filters('pmxi_base_url', $this->baseUrl);
}
/**
* Get the value by XPath expression
*
* @param SimpleXmlElement $xpath XPath result
* @return mixed
*/
protected function getValue($xpath)
{
if (is_array($xpath) && count($xpath) > 0) {
$result = array();
foreach ($xpath as $xp) {
// cancatenate multiple elements into 1 string
ob_start();
echo $xp;
$result[] = trim(ob_get_clean());
}
return implode(XmlImportConfig::getInstance()->getMultiGlue(), $result);
} else {
// return null if nothing found
return null;
}
}
/**
* Generates the code and returns the filename under which it was stored in
* cache directory. If $filename is null then it is generated automatically
*
* @param string $filename
* @return string
*/
public function generate($filename = null)
{
$result = '';
if (count($this->sequence->getVariables())) {
$var = '$x' . $this->xmlVariableNumber++;
array_push($this->xmlStack, $var);
$result .= $this->openPhpTag() . $var . ' = $this->xml;';
}
$result .= $this->generateForSequence($this->sequence);
if (count($this->sequence->getVariables())) {
array_pop($this->xmlStack);
}
if (is_null($filename)) {
$filename = tempnam(XmlImportConfig::getInstance()->getCacheDirectory(), 'xim');
}
if (!$filename or !@is_writable($filename)) {
$uploads = wp_upload_dir();
$filename = $uploads['path'] . '/' . wp_unique_filename($uploads['path'], 'tmpfile');
}
file_put_contents($filename, $result);
return $filename;
}
/**
* Generates the code and returns the filename under which it was stored in
* cache directory. If $filename is null then it is generated automatically
*
* @param string $filename
* @return string
*/
public function generate($filename = null)
{
$result = '';
if (count($this->sequence->getVariables())) {
$var = '$x' . $this->xmlVariableNumber++;
array_push($this->xmlStack, $var);
$result .= $this->openPhpTag() . $var . ' = $this->xml;';
}
$result .= $this->generateForSequence($this->sequence);
if (count($this->sequence->getVariables())) {
array_pop($this->xmlStack);
}
if (is_null($filename)) {
$filename = @tempnam(XmlImportConfig::getInstance()->getCacheDirectory(), 'xim');
}
if (!$filename or !@is_writable($filename)) {
$uploads = wp_upload_dir();
$targetDir = $uploads['basedir'] . DIRECTORY_SEPARATOR . PMXI_Plugin::TEMP_DIRECTORY;
$filename = $targetDir . DIRECTORY_SEPARATOR . wp_unique_filename($targetDir, 'tmpfile');
}
file_put_contents($filename, $result);
//@chmod($filename, 0666);
return $filename;
}
