function entityconnect_requirements in Entity connect 7

Same name and namespace in other branches

1. 7.2 entityconnect.install \entityconnect_requirements()

Implements hook_requirements().

File

./entityconnect.install, line 11

Install, update & uninstall functions for the Entity Connect module.

Code

function entityconnect_requirements($phase) {
  $requirements = array();
  switch ($phase) {
    case 'install':
      $t = get_t();
      $path = drupal_get_path('module', 'entityconnect') . '/entityconnect.info';
      $info = drupal_parse_info_file($path);
      $requirements['entityconnect'] = array();
      $requirements['entityconnect']['title'] = $info['name'];
      $requirements['entityconnect']['value'] = $info['version'];

      // At least one of the following modules is required in order for
      //  entityconnect to function properly.
      $singularly_required_modules = array(
        'entityreference',
        'node_reference',
        'user_reference',
      );

      // If this module is being installed as part of a Drupal installation,
      //  check for the existence of required modules without relying on the
      //  "module_exists()" function, which will always return false for these
      //  modules during a Drupal installation.
      if (drupal_installation_attempted()) {
        $files = drupal_system_listing('/^' . DRUPAL_PHP_FUNCTION_PATTERN . '\\.info$/', 'modules', 'name', 0);
        foreach ($singularly_required_modules as $module_name) {
          if (isset($files[$module_name])) {
            $requirements['entityconnect']['severity'] = REQUIREMENT_OK;
            break;
          }
        }
      }
      else {
        foreach ($singularly_required_modules as $module_name) {
          if (module_exists($module_name)) {
            $requirements['entityconnect']['severity'] = REQUIREMENT_OK;
            break;
          }
        }
      }
      if (!isset($requirements['entityconnect']['severity'])) {
        $requirements['entityconnect']['severity'] = REQUIREMENT_ERROR;
        $requirements['entityconnect']['description'] = $t('Neither Entityreference nor References module is installed or activated.
          Entityconnect needs at least one of those modules to work.');
      }
      break;
  }
  return $requirements;
}