webmaster@1: <?php
webmaster@1: // $Id: search.install,v 1.14 2007/12/28 10:53:27 dries Exp $
webmaster@1: 
webmaster@1: /**
webmaster@1:  * Implementation of hook_install().
webmaster@1:  */
webmaster@1: function search_install() {
webmaster@1:   // Create tables.
webmaster@1:   drupal_install_schema('search');
webmaster@1: }
webmaster@1: 
webmaster@1: /**
webmaster@1:  * Implementation of hook_uninstall().
webmaster@1:  */
webmaster@1: function search_uninstall() {
webmaster@1:   // Remove tables.
webmaster@1:   drupal_uninstall_schema('search');
webmaster@1: 
webmaster@1:   variable_del('minimum_word_size');
webmaster@1:   variable_del('overlap_cjk');
webmaster@1:   variable_del('search_cron_limit');
webmaster@1: }
webmaster@1: 
webmaster@1: /**
webmaster@1:  * Implementation of hook_schema().
webmaster@1:  */
webmaster@1: function search_schema() {
webmaster@1:   $schema['search_dataset'] = array(
webmaster@1:     'description' => t('Stores items that will be searched.'),
webmaster@1:     'fields' => array(
webmaster@1:       'sid' => array(
webmaster@1:         'type' => 'int',
webmaster@1:         'unsigned' => TRUE,
webmaster@1:         'not null' => TRUE,
webmaster@1:         'default' => 0,
webmaster@1:         'description' => t('Search item ID, e.g. node ID for nodes.'),
webmaster@1:       ),
webmaster@1:       'type' => array(
webmaster@1:         'type' => 'varchar',
webmaster@1:         'length' => 16,
webmaster@1:         'not null' => FALSE,
webmaster@1:         'description' => t('Type of item, e.g. node.'),
webmaster@1:       ),
webmaster@1:       'data' => array(
webmaster@1:         'type' => 'text',
webmaster@1:         'not null' => TRUE,
webmaster@1:         'size' => 'big',
webmaster@1:         'description' => t('List of space-separated words from the item.'),
webmaster@1:       ),
webmaster@1:       'reindex' => array(
webmaster@1:         'type' => 'int',
webmaster@1:         'unsigned' => TRUE,
webmaster@1:         'not null' => TRUE,
webmaster@1:         'default' => 0,
webmaster@1:         'description' => t('Set to force node reindexing.'),
webmaster@1:       ),
webmaster@1:     ),
webmaster@1:     'unique keys' => array('sid_type' => array('sid', 'type')),
webmaster@1:   );
webmaster@1: 
webmaster@1:   $schema['search_index'] = array(
webmaster@1:     'description' => t('Stores the search index, associating words, items and scores.'),
webmaster@1:     'fields' => array(
webmaster@1:       'word' => array(
webmaster@1:         'type' => 'varchar',
webmaster@1:         'length' => 50,
webmaster@1:         'not null' => TRUE,
webmaster@1:         'default' => '',
webmaster@1:         'description' => t('The {search_total}.word that is associated with the search item.'),
webmaster@1:       ),
webmaster@1:       'sid' => array(
webmaster@1:         'type' => 'int',
webmaster@1:         'unsigned' => TRUE,
webmaster@1:         'not null' => TRUE,
webmaster@1:         'default' => 0,
webmaster@1:         'description' => t('The {search_dataset}.sid of the searchable item to which the word belongs.'),
webmaster@1:       ),
webmaster@1:       'type' => array(
webmaster@1:         'type' => 'varchar',
webmaster@1:         'length' => 16,
webmaster@1:         'not null' => FALSE,
webmaster@1:         'description' => t('The {search_dataset}.type of the searchable item to which the word belongs.'),
webmaster@1:       ),
webmaster@1:       'score' => array(
webmaster@1:         'type' => 'float',
webmaster@1:         'not null' => FALSE,
webmaster@1:         'description' => t('The numeric score of the word, higher being more important.'),
webmaster@1:       ),
webmaster@1:     ),
webmaster@1:     'indexes' => array(
webmaster@1:       'sid_type' => array('sid', 'type'),
webmaster@1:       'word' => array('word')
webmaster@1:     ),
webmaster@1:     'unique keys' => array('word_sid_type' => array('word', 'sid', 'type')),
webmaster@1:   );
webmaster@1: 
webmaster@1:   $schema['search_total'] = array(
webmaster@1:     'description' => t('Stores search totals for words.'),
webmaster@1:     'fields' => array(
webmaster@1:       'word' => array(
webmaster@1:         'description' => t('Primary Key: Unique word in the search index.'),
webmaster@1:         'type' => 'varchar',
webmaster@1:         'length' => 50,
webmaster@1:         'not null' => TRUE,
webmaster@1:         'default' => '',
webmaster@1:       ),
webmaster@1:       'count' => array(
webmaster@1:         'description' => t("The count of the word in the index using Zipf's law to equalize the probability distribution."),
webmaster@1:         'type' => 'float',
webmaster@1:         'not null' => FALSE,
webmaster@1:       ),
webmaster@1:     ),
webmaster@1:     'primary key' => array('word'),
webmaster@1:   );
webmaster@1: 
webmaster@1:   $schema['search_node_links'] = array(
webmaster@1:     'description' => t('Stores items (like nodes) that link to other nodes, used to improve search scores for nodes that are frequently linked to.'),
webmaster@1:     'fields' => array(
webmaster@1:       'sid' => array(
webmaster@1:         'type' => 'int',
webmaster@1:         'unsigned' => TRUE,
webmaster@1:         'not null' => TRUE,
webmaster@1:         'default' => 0,
webmaster@1:         'description' => t('The {search_dataset}.sid of the searchable item containing the link to the node.'),
webmaster@1:       ),
webmaster@1:       'type' => array(
webmaster@1:         'type' => 'varchar',
webmaster@1:         'length' => 16,
webmaster@1:         'not null' => TRUE,
webmaster@1:         'default' => '',
webmaster@1:         'description' => t('The {search_dataset}.type of the searchable item containing the link to the node.'),
webmaster@1:       ),
webmaster@1:       'nid' => array(
webmaster@1:         'type' => 'int',
webmaster@1:         'unsigned' => TRUE,
webmaster@1:         'not null' => TRUE,
webmaster@1:         'default' => 0,
webmaster@1:         'description' => t('The {node}.nid that this item links to.'),
webmaster@1:       ),
webmaster@1:       'caption' => array(
webmaster@1:         'type' => 'text',
webmaster@1:         'size' => 'big',
webmaster@1:         'not null' => FALSE,
webmaster@1:         'description' => t('The text used to link to the {node}.nid.'),
webmaster@1:       ),
webmaster@1:     ),
webmaster@1:     'primary key' => array('sid', 'type', 'nid'),
webmaster@1:     'indexes' => array('nid' => array('nid')),
webmaster@1:   );
webmaster@1: 
webmaster@1:   return $schema;
webmaster@1: }
webmaster@1: