<?php

/**
 * Implementation of hook_install().
 */
function trees_install() {
  // Create tables.
  drupal_install_schema('trees');
}

/**
 * Implementation of hook_uninstall().
 */
function trees_uninstall() {
  // Delete menu links.
  db_query("DELETE FROM {menu_links} WHERE module = 'trees'");
  menu_cache_clear_all();
  // Remove tables.
  drupal_uninstall_schema('trees');
}

/**
 * Implementation of hook_schema().
 */
function trees_schema() {
  $schema['trees'] = array(
  'description' => 'Stores trees outline information. Uniquely connects each node in the outline to a link in {menu_links}',
    'fields' => array(
      'mlid' => array(
        'type' => 'int',
        'unsigned' => TRUE,
        'not null' => TRUE,
        'default' => 0,
        'description' => "The trees page's {menu_links}.mlid.",
      ),
      'nid' => array(
        'type' => 'int',
        'unsigned' => TRUE,
        'not null' => TRUE,
        'default' => 0,
        'description' => "The trees page's {node}.nid.",
      ),
      'bid' => array(
        'type' => 'int',
        'unsigned' => TRUE,
        'not null' => TRUE,
        'default' => 0,
        'description' => "The trees ID is the {trees}.nid of the top-level page.",
      ),
    ),
    'primary key' => array('mlid'),
    'indexes' => array(
      'bid' => array('bid'),
      'nid' => array('nid'),
    ),
  );

  return $schema;
}