interlink.install

<?php
// $Id$

/**
 * @file
 * Install, update, and uninstall functions for the interlink module.
 */

/**
 * Implementation of hook_schema().
 */
function interlink_schema() {
  $schema['interlink_term'] = array(
    'description' => t('Stores terms (abbreviations/synonyms) for referenced objects.'),
    'fields' => array(
      'object_type' => array(
        'description' => t('The object type the term references.'),
        'type' => 'varchar',
        'length' => '12',
        'not null' => TRUE,
      ),
      'object_id' => array(
        'description' => t('The object id the term references.'),
        'type' => 'int',
        'unsigned' => TRUE,
        'not null' => TRUE,
      ),
      'term' => array(
        'description' => t('The term for the referenced object.'),
        'type' => 'varchar',
        'length' => '64',
        'not null' => TRUE,
      ),
      'type' => array(
        'description' => t('The type of the term (abbreviation, synonym).'),
        'type' => 'int',
        'unsigned' => TRUE,
        'not null' => TRUE,
      ),
    ),
    'indexes' => array(
      'object_type_id' => array('object_type', 'object_id'),
    ),
    'unique keys' => array(
      'term' => array('term'),
    ),
  );

  $schema['interlink_title'] = array(
    'description' => t('Stores unabbreviated titles of referenced objects.'),
    'fields' => array(
      'object_type' => array(
        'description' => t('The object type the title belongs to.'),
        'type' => 'varchar',
        'length' => '12',
        'not null' => TRUE,
      ),
      'object_id' => array(
        'description' => t('The object id the title belongs to.'),
        'type' => 'int',
        'unsigned' => TRUE,
        'not null' => TRUE,
      ),
      'title' => array(
        'description' => t('The unabbreviated title of the referenced object.'),
        'type' => 'varchar',
        'length' => '255',
        'not null' => TRUE,
      ),
    ),
    'unique keys' => array(
      'object_type_id' => array('object_type', 'object_id'),
    ),
  );

  return $schema;
}

/**
 * Implementation of hook_requirements().
 */
function interlink_requirements($phase) {
  $requirements = array();
  $t = get_t();

  if (!file_exists('./sites/all/libraries/simplehtmldom/simple_html_dom.php')) {
    // Required library wasn't found. Abort installation.
    $requirements['interlink']['title'] = $t('Simple HTML DOM library');
    $requirements['interlink']['value'] = $t('Not found');
    $requirements['interlink']['description'] = $t('The <a href="@simplehtmldom">Simple HTML DOM</a> library is missing. <a href="@download">Download</a> and extract it to the <em>sites/all/libraries</em> directory. See <a href="@readme">README.txt</a> for more info.', array('@simplehtmldom' => 'http://simplehtmldom.sourceforge.net', '@download' => 'http://sourceforge.net/projects/simplehtmldom/files/', '@readme' => url(drupal_get_path('module', 'interlink') . '/README.txt')));
    $requirements['interlink']['severity'] = REQUIREMENT_ERROR;
  }

  return $requirements;
}

/**
 * Implementation of hook_install().
 */
function interlink_install() {
  drupal_install_schema('interlink');
}

/**
 * Implementation of hook_uninstall().
 */
function interlink_uninstall() {
  drupal_uninstall_schema('interlink');
  // Delete variables.
  db_query("DELETE FROM {variable} WHERE name LIKE 'interlink_%%'");
}