function actionDeleteCategory($params = '')
{
if (!empty($params['category_id'])) {
$objBlog = new BlogModel();
if ($objBlog->safeToDeleteCategory($params['category_id'])) {
$objBlog->deleteCategory($params['category_id']);
$this->messages[] = array('type' => 'success', 'message' => 'Blog Category has been deleted.');
} else {
$this->messages[] = array('type' => 'error', 'message' => 'Cannot delete a category that has sub categories.');
}
} else {
$this->messages[] = array('type' => 'error', 'message' => 'Unknown category to delete.');
}
$this->actionCategories();
}