Backend\Modules\Extensions\Actions\DeleteThemeTemplate::execute PHP Method

    public function execute()
    {
        // get parameters
        $this->id = $this->getParameter('id', 'int');
        // does the item exist
        if ($this->id !== null && BackendExtensionsModel::existsTemplate($this->id)) {
            // call parent, this will probably add some general CSS/JS or other required files
            parent::execute();
            // init var
            $success = false;
            // get template (we need the title)
            $item = BackendExtensionsModel::getTemplate($this->id);
            // valid template?
            if (!empty($item)) {
                // delete the page
                $success = BackendExtensionsModel::deleteTemplate($this->id);
                // trigger event
                BackendModel::triggerEvent($this->getModule(), 'after_delete_template', array('id' => $this->id));
            }
            // page is deleted, so redirect to the overview
            if ($success) {
                $this->redirect(BackendModel::createURLForAction('ThemeTemplates') . '&theme=' . $item['theme'] . '&report=deleted-template&var=' . rawurlencode($item['label']));
            } else {
                $this->redirect(BackendModel::createURLForAction('ThemeTemplates') . '&error=non-existing');
            }
        } else {
            // something went wrong
            $this->redirect(BackendModel::createURLForAction('ThemeTemplates') . '&error=non-existing');
        }
    }