uc_pdf_invoice_mail.install

<?php

/**
 * @file
 * Install file for Ubercart PDF Invoice Mail. Checks requirements.
 */

/**
 * Implements hook_requirements().
 */
function uc_pdf_invoice_mail_requirements($phase) {
  $requirements = array();
  $t = get_t();

  if ($phase == 'install') {

    if (version_compare(phpversion(), '5.3.0', '<')) {
      $requirements['php_version']['title'] = $t('PHP version');
      $requirements['php_version']['value'] = check_plain(phpversion());
      $requirements['php_version']['severity'] = REQUIREMENT_ERROR;
      $requirements['php_version']['description'] = $t('Ubercart PDF Invoice Mail could not be installed. DOMPDF requires PHP 5.3 or higher.');
    }

    // Make sure that Libraries module is loaded.
    if (!function_exists('libraries_get_path')) {
      module_load_include('module', 'libraries');
    }

    $path = libraries_get_path('dompdf');
    if (!is_file($path . '/README.md')) {
      $requirements['dompdf']['severity'] = REQUIREMENT_ERROR;
      $requirements['dompdf']['description'] = $t('Dompdf could not be installed. Dompdf version 0.8.x or higher not found. See README.txt.');
    }
  }
  return $requirements;
}