<?php
/**
 * @file
 * Install and update functions for the Charts module.
 */

/**
 * Implements hook_requirements().
 */
function charts_requirements($phase) {
  $requirements = array();
  $t = get_t();
  if ($phase == 'runtime' && !charts_info()) {
    $requirements['charts'] = array(
      'title' => $t('Charts'),
      'value' => $t('No Charts provider installed'),
      'severity' => REQUIREMENT_ERROR,
      'description' => $t('Charts core module only provides a a common set of functions. You must install a Charts provider module to create charts.'),
    );
  }
  return $requirements;
}

/**
 * Implements hook_uninstall().
 */
function charts_uninstall() {
}