/**
* Imports options and fields from the XML file given.
* @param $xmlFilename the file to import from.
* @return boolean true on success, false on failure
*/
function importFromXML($xmlFilename)
{
//parse the xml file
$xmlParser = new PhotoQXMLParser($xmlFilename);
$xmlParser->parse();
//store the parsed options if they validate
if ($xmlParser->validate()) {
$optionArray = $xmlParser->getParsedOptions();
$fieldArray = $xmlParser->getParsedFields();
$catsArray = $xmlParser->getParsedCats();
//right now we only support one default category
$defaultCat = null;
if (!empty($catsArray)) {
$defaultCat = $catsArray[0];
}
//delete views that are no longer used in the new settings
$this->_deleteObsoleteViews($this->getViewNames(), $xmlParser->getViewNames());
//delete image sizes that are no longer used in the new settings
$this->_deleteObsoleteImageSizes($this->getImageSizeNames(), $xmlParser->getImageSizeNames());
//add custom fields required by views setting of xml file,
//conflicts with fields will not happen as this is already tested in validation.
foreach ($xmlParser->getViewNames(true) as $view) {
$this->addViewCallback($view, true);
}
//it may happen that some fields are already there. Do not show an error in this case
$this->_errStack->pushCallback(array('PhotoQErrorHandler', 'mutePHOTOQ_FIELD_EXISTS'));
//create fields required by the xml file
foreach ($fieldArray as $fieldname) {
$this->_db->insertField($fieldname, true);
}
//add default tags to all photoq posts
if (isset($optionArray['qPostDefaultTags']['qPostDefaultTags']) && !empty($optionArray['qPostDefaultTags']['qPostDefaultTags'])) {
$newTags = preg_split("/[\\s]*,[\\s]*/", $optionArray['qPostDefaultTags']['qPostDefaultTags']);
$postIDs = $this->_db->getAllPublishedPhotoIDs();
foreach ($postIDs as $id) {
//update the tags in the database
wp_set_post_tags($id, add_magic_quotes($newTags), true);
}
//update all posts in the queue
$qEntries = $this->_db->getQueueIDTagPairs();
foreach ($qEntries as $entry) {
$oldTags = preg_split("/[\\s]*,[\\s]*/", $entry->q_tags);
$tagString = implode(',', array_unique(array_merge($newTags, $oldTags)));
$this->_db->updateTags($entry->q_img_id, $tagString);
}
}
//same for default category
if ($defaultCat) {
//create it if it does not exist
if (!category_exists($defaultCat)) {
$catID = wp_insert_category(array('cat_name' => $defaultCat));
if (is_wp_error($catID)) {
$defaultCat = NULL;
}
} else {
$catID = get_cat_id($defaultCat);
}
//get all posts and add default category to list of cats
$postIDs = $this->_db->getAllPublishedPhotoIDs();
foreach ($postIDs as $id) {
//update the tags in the database
wp_set_object_terms($id, $defaultCat, 'category', true);
}
//update all posts in the queue
if (!is_wp_error($catID)) {
$qIds = $this->_db->getAllQueuedPhotoIDs();
foreach ($qIds as $id) {
if (!in_array($catID, $this->_db->getCategoriesByImgId($id))) {
$this->_db->insertCategory($id, $catID);
}
}
}
}
//store the imported options to the database
$storedOptions = get_option($this->_optionsDBName);
foreach ($optionArray as $key => $val) {
if (array_key_exists($key, $storedOptions)) {
$storedOptions[$key] = PhotoQHelper::arrayHtmlEntities($val);
}
}
update_option($this->_optionsDBName, $storedOptions);
//reload to make the changes active
$this->load();
return true;
}
return false;
}
