<?php

// $Id: forum.install,v 1.16.2.2 2009/01/06 15:46:37 goba Exp $

/**

 * Implementation of hook_install().

 */

function forum_install() {

  // Create tables.

  drupal_install_schema('forum');

  // Set the weight of the forum.module to 1 so it is loaded after the taxonomy.module.

  db_query("UPDATE {system} SET weight = 1 WHERE name = 'forum'");

}

function forum_enable() {

  if ($vocabulary = taxonomy_vocabulary_load(variable_get('forum_nav_vocabulary', 0))) {

    // Existing install. Add back forum node type, if the forums

    // vocabulary still exists. Keep all other node types intact there.

    $vocabulary = (array) $vocabulary;

    $vocabulary['nodes']['forum'] = 1;

    taxonomy_save_vocabulary($vocabulary);

  }

  else {

    // Create the forum vocabulary if it does not exist. Assign the vocabulary

    // a low weight so it will appear first in forum topic create and edit

    // forms.

    $vocabulary = array(

      'name' => t('Forums'),

      'multiple' => 0,

      'required' => 0,

      'hierarchy' => 1,

      'relations' => 0,

      'module' => 'forum',

      'weight' => -10,

      'nodes' => array('forum' => 1),

    );

    taxonomy_save_vocabulary($vocabulary);

    variable_set('forum_nav_vocabulary', $vocabulary['vid']);

  }

}

/**

 * Implementation of hook_uninstall().

 */

function forum_uninstall() {

  // Load the dependent Taxonomy module, in case it has been disabled.

  drupal_load('module', 'taxonomy');

  // Delete the vocabulary.

  $vid = variable_get('forum_nav_vocabulary', '');

  taxonomy_del_vocabulary($vid);

  db_query('DROP TABLE {forum}');

  variable_del('forum_containers');

  variable_del('forum_nav_vocabulary');

  variable_del('forum_hot_topic');

  variable_del('forum_per_page');

  variable_del('forum_order');

  variable_del('forum_block_num_0');

  variable_del('forum_block_num_1');

}

/**

 * Implementation of hook_schema().

 */

function forum_schema() {

  $schema['forum'] = array(

    'description' => 'Stores the relationship of nodes to forum terms.',

    'fields' => array(

      'nid' => array(

        'type' => 'int',

        'unsigned' => TRUE,

        'not null' => TRUE,

        'default' => 0,

        'description' => 'The {node}.nid of the node.',

      ),

      'vid' => array(

        'type' => 'int',

        'unsigned' => TRUE,

        'not null' => TRUE,

        'default' => 0,

        'description' => 'Primary Key: The {node}.vid of the node.',

      ),

      'tid' => array(

        'type' => 'int',

        'unsigned' => TRUE,

        'not null' => TRUE,

        'default' => 0,

        'description' => 'The {term_data}.tid of the forum term assigned to the node.',

      ),

    ),

    'indexes' => array(

      'nid' => array('nid'),

      'tid' => array('tid')

    ),

    'primary key' => array('vid'),

  );

  return $schema;

}

/**

 * Create the forum vocabulary if does not exist. Assign the

 * vocabulary a low weight so it will appear first in forum topic

 * create and edit forms.  Do not just call forum_enable() because in

 * future versions it might do something different.

 */

function forum_update_6000() {

  $ret = array();

  $vid = variable_get('forum_nav_vocabulary', 0);

  $vocabularies = taxonomy_get_vocabularies();

  if (!isset($vocabularies[$vid])) {

    $vocabulary = array(

      'name' => t('Forums'),

      'multiple' => 0,

      'required' => 0,

      'hierarchy' => 1,

      'relations' => 0,

      'module' => 'forum',

      'weight' => -10,

      'nodes' => array('forum' => 1),

    );

    taxonomy_save_vocabulary($vocabulary);

    variable_set('forum_nav_vocabulary', $vocabulary['vid']);

  }

  return $ret;

}