webmaster@1: <?php
franck@19: // $Id: search.install,v 1.14.2.1 2009/01/06 15:46:37 goba 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(
franck@19:     'description' => '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,
franck@19:         'description' => '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,
franck@19:         'description' => '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',
franck@19:         'description' => '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,
franck@19:         'description' => '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(
franck@19:     'description' => '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' => '',
franck@19:         'description' => '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,
franck@19:         'description' => '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,
franck@19:         'description' => '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,
franck@19:         'description' => '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(
franck@19:     'description' => 'Stores search totals for words.',
webmaster@1:     'fields' => array(
webmaster@1:       'word' => array(
franck@19:         'description' => '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(
franck@19:         'description' => "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(
franck@19:     'description' => '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,
franck@19:         'description' => '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' => '',
franck@19:         'description' => '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,
franck@19:         'description' => '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,
franck@19:         'description' => '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: