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   1  <?php
   2  // $Id: forum.install,v 1.16.2.2 2009/01/06 15:46:37 goba Exp $
   3  
   4  /**
   5   * Implementation of hook_install().
   6   */
   7  function forum_install() {
   8    // Create tables.
   9    drupal_install_schema('forum');
  10    // Set the weight of the forum.module to 1 so it is loaded after the taxonomy.module.
  11    db_query("UPDATE {system} SET weight = 1 WHERE name = 'forum'");
  12  }
  13  
  14  function forum_enable() {
  15    if ($vocabulary = taxonomy_vocabulary_load(variable_get('forum_nav_vocabulary', 0))) {
  16      // Existing install. Add back forum node type, if the forums
  17      // vocabulary still exists. Keep all other node types intact there.
  18      $vocabulary = (array) $vocabulary;
  19      $vocabulary['nodes']['forum'] = 1;
  20      taxonomy_save_vocabulary($vocabulary);
  21    }
  22    else {
  23      // Create the forum vocabulary if it does not exist. Assign the vocabulary
  24      // a low weight so it will appear first in forum topic create and edit
  25      // forms.
  26      $vocabulary = array(
  27        'name' => t('Forums'),
  28        'multiple' => 0,
  29        'required' => 0,
  30        'hierarchy' => 1,
  31        'relations' => 0,
  32        'module' => 'forum',
  33        'weight' => -10,
  34        'nodes' => array('forum' => 1),
  35      );
  36      taxonomy_save_vocabulary($vocabulary);
  37  
  38      variable_set('forum_nav_vocabulary', $vocabulary['vid']);
  39    }
  40  }
  41  
  42  /**
  43   * Implementation of hook_uninstall().
  44   */
  45  function forum_uninstall() {
  46    // Load the dependent Taxonomy module, in case it has been disabled.
  47    drupal_load('module', 'taxonomy');
  48  
  49    // Delete the vocabulary.
  50    $vid = variable_get('forum_nav_vocabulary', '');
  51    taxonomy_del_vocabulary($vid);
  52  
  53    db_query('DROP TABLE {forum}');
  54    variable_del('forum_containers');
  55    variable_del('forum_nav_vocabulary');
  56    variable_del('forum_hot_topic');
  57    variable_del('forum_per_page');
  58    variable_del('forum_order');
  59    variable_del('forum_block_num_0');
  60    variable_del('forum_block_num_1');
  61  }
  62  
  63  /**
  64   * Implementation of hook_schema().
  65   */
  66  function forum_schema() {
  67    $schema['forum'] = array(
  68      'description' => 'Stores the relationship of nodes to forum terms.',
  69      'fields' => array(
  70        'nid' => array(
  71          'type' => 'int',
  72          'unsigned' => TRUE,
  73          'not null' => TRUE,
  74          'default' => 0,
  75          'description' => 'The {node}.nid of the node.',
  76        ),
  77        'vid' => array(
  78          'type' => 'int',
  79          'unsigned' => TRUE,
  80          'not null' => TRUE,
  81          'default' => 0,
  82          'description' => 'Primary Key: The {node}.vid of the node.',
  83        ),
  84        'tid' => array(
  85          'type' => 'int',
  86          'unsigned' => TRUE,
  87          'not null' => TRUE,
  88          'default' => 0,
  89          'description' => 'The {term_data}.tid of the forum term assigned to the node.',
  90        ),
  91      ),
  92      'indexes' => array(
  93        'nid' => array('nid'),
  94        'tid' => array('tid')
  95      ),
  96      'primary key' => array('vid'),
  97    );
  98  
  99    return $schema;
 100  }
 101  
 102  /**
 103   * Create the forum vocabulary if does not exist. Assign the
 104   * vocabulary a low weight so it will appear first in forum topic
 105   * create and edit forms.  Do not just call forum_enable() because in
 106   * future versions it might do something different.
 107   */
 108  function forum_update_6000() {
 109    $ret = array();
 110  
 111    $vid = variable_get('forum_nav_vocabulary', 0);
 112    $vocabularies = taxonomy_get_vocabularies();
 113    if (!isset($vocabularies[$vid])) {
 114      $vocabulary = array(
 115        'name' => t('Forums'),
 116        'multiple' => 0,
 117        'required' => 0,
 118        'hierarchy' => 1,
 119        'relations' => 0,
 120        'module' => 'forum',
 121        'weight' => -10,
 122        'nodes' => array('forum' => 1),
 123      );
 124      taxonomy_save_vocabulary($vocabulary);
 125  
 126      variable_set('forum_nav_vocabulary', $vocabulary['vid']);
 127    }
 128  
 129    return $ret;
 130  }