/**
* @private
* removes categories from the database
*/
function _deleteArticleCategories()
{
$categories = new ArticleCategories();
$errorMessage = "";
$successMessage = "";
$totalOk = 0;
foreach ($this->_categoryIds as $categoryId) {
// get the category
$category = $categories->getCategory($categoryId, $this->_blogInfo->getId());
if ($category) {
// get how many articles it has
//$numArticles = $categories->getNumArticlesCategory( $categoryId );
$numArticles = $category->getNumArticles(POST_STATUS_ALL);
// fire the pre-event
$this->notifyEvent(EVENT_PRE_CATEGORY_DELETE, array("category" => &$category));
// if it has at least one we can't delete it because then it would break the
// integrity of our data in the database...
if ($numArticles > 0) {
$errorMessage .= $this->_locale->pr("error_category_has_articles", $category->getName()) . "<br/>";
} else {
// if everything correct, we can proceed and delete it
if (!$categories->deleteCategory($categoryId, $this->_blogInfo->getId())) {
$errorMessage .= $this->_locale->pr("error_deleting_category") . "<br/>";
} else {
if ($totalOk < 2) {
$successMessage .= $this->_locale->pr("category_deleted_ok", $category->getName()) . "<br/>";
} else {
$successMessage = $this->_locale->pr("categories_deleted_ok", $totalOk);
}
// fire the pre-event
$this->notifyEvent(EVENT_POST_CATEGORY_DELETE, array("category" => &$category));
}
}
} else {
$errorMessage .= $this->_locale->pr("error_deleting_category2", $categoryId) . "<br/>";
}
}
// prepare the view and all the information it needs to know
$this->_view = new AdminArticleCategoriesListView($this->_blogInfo);
if ($errorMessage != "") {
$this->_view->setErrorMessage($errorMessage);
}
if ($successMessage != "") {
// and clear the cache to avoid outdated information
CacheControl::resetBlogCache($this->_blogInfo->getId(), false);
$this->_view->setSuccessMessage($successMessage);
}
$this->setCommonData();
return true;
}