ModulesEnabledTrait.php

<?php

namespace Drupal\system\Form;

use Drupal\Core\Config\PreExistingConfigException;
use Drupal\Core\StringTranslation\PluralTranslatableMarkup;
use Drupal\Core\StringTranslation\StringTranslationTrait;
use Drupal\Core\Url;

/**
 * Provides helpers for enabling modules.
 *
 * @internal
 */
trait ModulesEnabledTrait {
    use StringTranslationTrait;
    
    /**
     * Gets the current user.
     *
     * @return \Drupal\Core\Session\AccountInterface
     *   The current user.
     */
    protected abstract function currentUser();
    
    /**
     * Provides a confirmation message after modules have been enabled.
     *
     * @param string[] $modules
     *   Enabled module names, keyed by machine names.
     *
     * @return \Drupal\Core\StringTranslation\PluralTranslatableMarkup
     *   A confirmation message. If any of the enabled modules have permissions
     *   that the current user can manage, then include a link to the permissions
     *   page for those modules.
     */
    protected function modulesEnabledConfirmationMessage(array $modules) : PluralTranslatableMarkup {
        $machine_names = implode(',', array_keys($modules));
        $url = Url::fromRoute('user.admin_permissions.module', [
            'modules' => $machine_names,
        ]);
        $module_names = implode(', ', array_values($modules));
        $t_args = [
            '%name' => $module_names,
            '%names' => $module_names,
        ];
        if ($url->access($this->currentUser())) {
            return $this->formatPlural(count($modules), 'Module %name has been installed. Configure <a href=":link">related permissions</a>.', '@count modules have been installed: %names. Configure <a href=":link">related permissions</a>.', $t_args + [
                ':link' => $url->toString(),
            ]);
        }
        return $this->formatPlural(count($modules), 'Module %name has been installed.', '@count modules have been installed: %names.', $t_args);
    }
    
    /**
     * Provides a fail message after attempt to install a module.
     *
     * @param string[] $modules
     *   Enabled module names, keyed by machine names.
     * @param \Drupal\Core\Config\PreExistingConfigException $exception
     *   Exception thrown if configuration with the same name already exists.
     *
     * @return \Drupal\Core\StringTranslation\PluralTranslatableMarkup
     *   A confirmation message. If any of the enabled modules have permissions
     *   that the current user can manage, then include a link to the permissions
     *   page for those modules.
     */
    protected function modulesFailToEnableMessage(array $modules, PreExistingConfigException $exception) : PluralTranslatableMarkup {
        $config_objects = $exception->flattenConfigObjects($exception->getConfigObjects());
        return $this->formatPlural(count($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' => $modules['install'][$exception->getExtension()],
        ]);
    }

}