<?php
/**
 * @file
 * Install, uninstall and enable functions for the Term Disable Listing module.
 */

/**
 * Implements hook_enable().
 */
function disable_term_node_listings_enable() {
  drupal_set_message(st('To disable a node listings for terms in a selected vocabulary, edit a vocabulary from the !url.', array('!url' => l(st('taxonomy page'), 'admin/structure/taxonomy'))));
}

/**
 * Implements hook_requirements().
 */
function disable_term_node_listings_requirements($phase) {
  $requirements = array();
  // Ensure translations don't break during installation.
  $t = get_t();

  if ($phase == 'runtime') {
    $requirements['disable_term_node_listings_page_control'] = array(
      'title' => $t('Disable Term Node Listings'),
      'severity' => REQUIREMENT_OK,
      'value' => $t('Working'),
      'description' => $t('Other modules that control term pages can block this module from working'),
    );

    $result = db_query("SELECT * from {menu_router} where path = :path", array(':path' => 'taxonomy/term/%'));
    foreach ($result as $record) {
      if ($record->page_callback != 'disable_term_node_listings_term_page') {
        $requirements['disable_term_node_listings_page_control']['value'] = $t('Blocked by') . ': ' . $record->page_callback;
        $requirements['disable_term_node_listings_page_control']['severity'] = REQUIREMENT_ERROR;
      }
    }
  }
  return $requirements;
}

/**
 * Implements hook_uninstall().
 */
function disable_term_node_listings_uninstall() {
  // Delete term disable listing variables.
  db_delete('variable')
      ->condition('name', db_like('disable_term_node_listings_') . '%', 'LIKE')
      ->execute();
}

/**
 * Converting booleans to new named values.
 * 
 * Disabled listing to 'hide_listings' and inactive to 'default'.
 */
function disable_term_node_listings_update_7100() {
  $result = db_query("SELECT * from {variable} WHERE {name} like 'disable_term_node_listings_%'");
  foreach ($result as $record) {
    $value = unserialize($record->value);
    if ($value == 1) {
      variable_set($record->name, 'hide_listing');
    }
    elseif ($value == 0) {
      variable_set($record->name, 'default');
    }
  }
}