function fb_autopost_requirements in Facebook Autopost 7

Implements hook_requirements().

File

./fb_autopost.install, line 11

Install file to support fb_autopost.module

Code

function fb_autopost_requirements($phase) {
  $requirements = array();

  // Ensure translations don't break at install time.
  $t = get_t();

  // Disable these checks at install time, because failure then causes more
  // problems due to module dependencies and Drupal's poor handling of
  // requirement errors.
  if ($phase != 'runtime') {
    return $requirements;
  }

  // Check for the presence of facebook-php-sdk library
  // given that we are in the runtime phase we can assume that
  // drupal has been fully loaded and we can use libraries helpers.
  $machine = 'facebook-php-sdk';
  $requirements[$machine] = array(
    'title' => $t('Facebook PHP SDK'),
  );
  $lib_path = libraries_get_path($machine);
  if (file_exists($lib_path . '/src/facebook.php')) {

    // Inform that the library has been found and what is the version of it
    // If there is no such file or we cannot find the version.
    $warning_data = array(
      'description' => $t('The Facebook PHP SDK library has been found but we could not verify the version.'),
      'severity' => REQUIREMENT_WARNING,
    );
    if (!file_exists($lib_path . '/src/base_facebook.php')) {
      $requirements[$machine] += $warning_data;
    }
    else {
      require_once $lib_path . '/src/base_facebook.php';

      // The file has been found, now check the version of it.
      $matches = array();

      // Facebook PHP SDK contains a constant in base_facebook.php with the
      // version.
      $version = BaseFacebook::VERSION;
      if (!empty($version)) {

        // Set the requirement OK.
        $requirements[$machine] += array(
          'value' => $version,
          'severity' => REQUIREMENT_OK,
        );
      }
      else {

        // If there is no information about the version return a warning.
        $requirements += $warning_data;
      }
    }
  }
  else {

    // Set a requirement error.
    $requirements[$machine] += array(
      'severity' => REQUIREMENT_ERROR,
      'description' => $t('The Facebook PHP SDK library has not been installed. Please clone the git repository or download the library in the common library paths from !link.', array(
        '!link' => l($t('here'), 'https://github.com/facebook/facebook-php-sdk'),
      )),
    );
  }
  return $requirements;
}