<?php

/**

 * @file

 * Install, update and uninstall functions for the dashboard module.

 */

/**

 * Implements hook_disable().

 *

 * Stash a list of blocks enabled on the dashboard, so they can be re-enabled

 * if the dashboard is re-enabled. Then disable those blocks, since the

 * dashboard regions will no longer be defined.

 */

function dashboard_disable() {

  // Stash a list of currently enabled blocks.

  $stashed_blocks = array();

  $result = db_select('block', 'b')

    ->fields('b', array('module', 'delta', 'region'))

    ->condition('b.region', dashboard_regions(), 'IN')

    ->execute();

  foreach ($result as $block) {

    $stashed_blocks[] = array(

      'module' => $block->module,

      'delta' => $block->delta,

      'region' => $block->region,

    );

  }

  variable_set('dashboard_stashed_blocks', $stashed_blocks);

  // Disable the dashboard blocks.

  db_update('block')

    ->fields(array(

      'status' => 0,

      'region' => BLOCK_REGION_NONE,

    ))

    ->condition('region', dashboard_regions(), 'IN')

    ->execute();

}

/**

 * Implements hook_enable().

 *

 * Restores blocks to the dashboard that were there when the dashboard module

 * was disabled.

 */

function dashboard_enable() {

  global $theme_key;

  if (!$stashed_blocks = variable_get('dashboard_stashed_blocks')) {

    return;

  }

  if (!$admin_theme = variable_get('admin_theme')) {

    drupal_theme_initialize();

    $admin_theme = $theme_key;

  }

  foreach ($stashed_blocks as $block) {

    db_update('block')

      ->fields(array(

        'status' => 1,

        'region' => $block['region']

      ))

      ->condition('module', $block['module'])

      ->condition('delta', $block['delta'])

      ->condition('theme', $admin_theme)

      ->condition('status', 0)

      ->execute();

  }

  variable_del('dashboard_stashed_blocks');

}

/**

 * Implements hook_uninstall().

 */

function dashboard_uninstall() {

  variable_del('dashboard_stashed_blocks');

}