materio-base-d7/sites/all/modules/contrib/admin/node_export/modules/node_export_dependency/node_export_dependency.install

<?php

/**
 * @file
 * The Node export dependency install file.
 */

/**
 * Implements hook_uninstall().
 */
function node_export_dependency_uninstall() {
  variable_del('node_export_dependency');
  variable_del('node_export_dependency_lock');
  variable_del('node_export_dependency_disable_modules');
  variable_del('node_export_dependency_attach_nodes');
  variable_del('node_export_dependency_abort');
  variable_del('node_export_dependency_existing');
}

 /**
  * Implements hook_requirements().
  */
 function node_export_dependency_requirements($phase) {
  $requirements = array();
  if ($phase == 'install') {
    // Ensure translations don't break at install time
    $t = get_t();

    if (module_exists('node_export_relation')) {
      $requirements['node_export_relation'] = array(
        'title' => 'Node export relation',
        'description' => $t(
          'Node export dependency cannot be installed when Node export relation is in use.'
        ),
        'severity' => REQUIREMENT_ERROR,
      );
    }
  }

  return $requirements;
}