<?php
// $Id$

/**
 * @file
 * gmap_taxonomy install routines.
 */

/**
 * Implementation of hook_install().
 */
function gmap_taxonomy_install() {
  drupal_install_schema('gmap_taxonomy');
}

/**
 * Implementation of hook_uninstall().
 */
function gmap_taxonomy_uninstall() {
  drupal_uninstall_schema('gmap_taxonomy');
}

/**
 * Implementation of hook_schema().
 */
function gmap_taxonomy_schema() {
  $schema['gmap_taxonomy_term'] = array(
    'fields' => array(
      'tid'    => array('type' => 'int', 'unsigned' => TRUE, 'not null' => TRUE, 'default' => 0),
      'marker' => array('type' => 'varchar', 'length' => 32),
    ),
    'primary key' => array('tid'),
  );

  $schema['gmap_taxonomy_node'] = array(
    'fields' => array(
      'nid'    => array('type' => 'int', 'unsigned' => TRUE, 'not null' => TRUE, 'default' => 0),
      'vid'    => array('type' => 'int', 'unsigned' => TRUE, 'not null' => TRUE, 'default' => 0),
      'tid'    => array('type' => 'int', 'unsigned' => TRUE, 'not null' => TRUE, 'default' => 0),
      'marker' => array('type' => 'varchar', 'length' => 32),
    ),
    'primary key' => array('vid'),
    'indexes' => array(
      'nid' => array('nid'),
    ),
  );

  return $schema;
}

/**
 * Track the tid that caused the association, so we can
 * do fixups faster.
 */
function gmap_taxonomy_update_5001() {
  $ret = array();
  // Add the new column.
  // @@@ AFTER vid...
  db_add_field($ret, 'gmap_taxonomy_node', 'tid', array('type' => 'int', 'unsigned' => TRUE, 'not null' => TRUE, 'default' => 0));

  // Useful for repopulating in bulk... Copy to hook_enable()?
  $ret[] = update_sql('DELETE FROM {gmap_taxonomy_node}');
  $ret[] = update_sql("INSERT INTO {gmap_taxonomy_node} (nid, vid, tid, marker) (SELECT n.nid, n.vid, t.tid, g.marker FROM {node_revisions} n INNER JOIN {term_node} t ON n.nid = t.nid INNER JOIN {gmap_taxonomy_term} g ON t.tid = g.tid GROUP BY n.vid ORDER BY NULL)");

  return $ret;
}