function print_epub_requirements in Printer, email and PDF versions 7.2

Implements hook_requirements().

File

print_epub/print_epub.install, line 54

Install, update and uninstall functions for the print_epub module.

Code

function print_epub_requirements($phase) {
  $requirements = array();
  $t = get_t();
  switch ($phase) {

    // At runtime, make sure that a EPUB generation tool is selected.
    case 'runtime':
      $print_epub_epub_tool = variable_get('print_epub_epub_tool', PRINT_EPUB_EPUB_TOOL_DEFAULT);
      if (empty($print_epub_epub_tool)) {
        $requirements['print_epub_tool'] = array(
          'title' => $t('Printer, email and EPUB versions - EPUB generation library'),
          'value' => $t('No EPUB tool selected'),
          'description' => $t('Please configure it in the !url.', array(
            '!url' => l($t('EPUB settings page'), 'admin/config/user-interface/print/epub'),
          )),
          'severity' => REQUIREMENT_ERROR,
        );
      }
      else {
        $tool = explode('|', $print_epub_epub_tool);
        if (!is_file($tool[1]) || !is_readable($tool[1])) {
          $requirements['print_epub_tool'] = array(
            'title' => $t('Printer, email and EPUB versions - EPUB generation library'),
            'value' => $t('File not found'),
            'description' => $t('The currently selected EPUB generation library (%file) is no longer accessible.', array(
              '%file' => $tool[1],
            )),
            'severity' => REQUIREMENT_ERROR,
          );
        }
      }
      break;
  }
  return $requirements;
}