Same name in other branches

1. 9 core/modules/system/src/Controller/ThemeController.php \Drupal\system\Controller\ThemeController::install()
2. 8.9.x core/modules/system/src/Controller/ThemeController.php \Drupal\system\Controller\ThemeController::install()
3. 11.x core/modules/system/src/Controller/ThemeController.php \Drupal\system\Controller\ThemeController::install()

Installs a theme.

Parameters

\Symfony\Component\HttpFoundation\Request $request: A request object containing a theme name and a valid token.

Return value

\Symfony\Component\HttpFoundation\RedirectResponse|array Redirects back to the appearance admin page or the confirmation form if an experimental theme will be installed.

Throws

\Symfony\Component\HttpKernel\Exception\AccessDeniedHttpException Throws access denied when no theme or token is set in the request or when the token is invalid.

1 string reference to 'ThemeController::install'

system.routing.yml in core/modules/system/system.routing.yml

core/modules/system/system.routing.yml

File

core/modules/system/src/Controller/ThemeController.php, line 118

Class

ThemeController

Controller for theme handling.

Namespace

Drupal\system\Controller

Code

public function install(Request $request) {
    $theme = $request->query
        ->get('theme');
    if (isset($theme)) {
        // Display confirmation form in case of experimental theme.
        if ($this->willInstallExperimentalTheme($theme)) {
            return $this->formBuilder()
                ->getForm(ThemeExperimentalConfirmForm::class, $theme);
        }
        try {
            if ($this->themeInstaller
                ->install([
                $theme,
            ])) {
                $themes = $this->themeHandler
                    ->listInfo();
                $this->messenger()
                    ->addStatus($this->t('The %theme theme has been installed.', [
                    '%theme' => $themes[$theme]->info['name'],
                ]));
            }
            else {
                $this->messenger()
                    ->addError($this->t('The %theme theme was not found.', [
                    '%theme' => $theme,
                ]));
            }
        } catch (PreExistingConfigException $e) {
            $config_objects = $e->flattenConfigObjects($e->getConfigObjects());
            $this->messenger()
                ->addError($this->formatPlural(count($config_objects), 'Unable to install @extension, %config_names already exists in active configuration.', 'Unable to install @extension, %config_names already exist in active configuration.', [
                '%config_names' => implode(', ', $config_objects),
                '@extension' => $theme,
            ]));
        } catch (UnmetDependenciesException $e) {
            $this->messenger()
                ->addError($e->getTranslatedMessage($this->getStringTranslation(), $theme));
        } catch (MissingDependencyException $e) {
            $this->messenger()
                ->addError($this->t('Unable to install @theme due to missing module dependencies.', [
                '@theme' => $theme,
            ]));
        }
        return $this->redirect('system.themes_page');
    }
    throw new AccessDeniedHttpException();
}

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