<?php

/**
 * @file
 * This is Views Slideshow: ImageFlow's installation file.
 */

/**
 * Implementation of hook_install().
 */
function views_slideshow_imageflow_install() {
  return array();
}

/**
 * Implementation of hook_uninstall().
 */
function views_slideshow_imageflow_uninstall() {
  foreach (views_slideshow_imageflow_variable_default() as $variable => $value) {
    views_slideshow_imageflow_variable_del($variable);
  }
  return array(array('success' => TRUE, 'query' => "Deleted all variables in the Views Slideshow: ImageFlow namespace."));
}

/**
 * Convert variables to new namespace.
 */
function views_slideshow_imageflow_update_6001() {
  // Rebuild our menu and themes.
  drupal_rebuild_theme_registry();
  menu_rebuild();

  // Convert variables to the Views Slideshow: ImageFlow variable namespace.
  $ret = array();
  $flag = FALSE;

  $variables = array(
    'views_slideshow_imageflow_plugin' => 'plugin_path',
  );

  foreach ($variables as $old_variable => $new_variable) {
    $new_value = views_slideshow_imageflow_variable_get($new_variable);
    $old_value = variable_get($old_variable, $new_value);

    // Set the variable to the value of the old version, assuming it hasn't
    // already been overridden, and the old version is not the current default.
    if (($new_value == views_slideshow_imageflow_variable_default($new_variable)) && ($new_value != $value)) {
      views_slideshow_imageflow_variable_set($new_variable, $value);
    }
    variable_del($old_variable);
    $flag = TRUE;
  }

  if ($flag) {
    $ret[] = array('success' => TRUE, 'query' => "Converted old variables to the Views Slideshow: ImageFlow variable namespace.");
  }

  return $ret;
}