122 lines
3.1 KiB
PHP
122 lines
3.1 KiB
PHP
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<?php
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/**
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* Simple Machines Forum (SMF)
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*
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* @package SMF
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* @author Simple Machines http://www.simplemachines.org
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* @copyright 2011 Simple Machines
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* @license http://www.simplemachines.org/about/smf/license.php BSD
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*
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* @version 2.0.7
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*/
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if (!defined('SMF'))
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die('Hacking attempt...');
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/* This file contains database functions specific to search related activity.
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void db_search_init()
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- adds the functions in this file to the $smcFunc array
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boolean smf_db_search_support($search_type)
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- whether this database type support the search type $search_type
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void smf_db_create_word_search($size)
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- create the custom word index table
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resource smf_db_search_query($identifier, $db_string, $db_values = array(), $connection = null)
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- returns the correct query for this search type.
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*/
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// Add the file functions to the $smcFunc array.
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function db_search_init()
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{
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global $smcFunc;
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if (!isset($smcFunc['db_search_query']) || $smcFunc['db_search_query'] != 'smf_db_search_query')
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$smcFunc += array(
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'db_search_query' => 'smf_db_search_query',
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'db_search_support' => 'smf_db_search_support',
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'db_create_word_search' => 'smf_db_create_word_search',
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'db_support_ignore' => false,
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);
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}
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// Does this database type support this search type?
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function smf_db_search_support($search_type)
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{
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$supported_types = array('custom');
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return in_array($search_type, $supported_types);
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}
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// Returns the correct query for this search type.
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function smf_db_search_query($identifier, $db_string, $db_values = array(), $connection = null)
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{
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global $smcFunc;
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$replacements = array(
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'create_tmp_log_search_topics' => array(
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'~mediumint\(\d\)~i' => 'int',
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'~unsigned~i' => '',
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'~ENGINE=MEMORY~i' => '',
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),
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'create_tmp_log_search_messages' => array(
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'~mediumint\(\d\)' => 'int',
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'~unsigned~i' => '',
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'~TYPE=HEAP~i' => '',
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),
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'drop_tmp_log_search_topics' => array(
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'~IF\sEXISTS~i' => '',
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),
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'drop_tmp_log_search_messages' => array(
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'~IF\sEXISTS~i' => '',
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),
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'insert_into_log_messages_fulltext' => array(
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'~NOT\sRLIKE~i' => '!~*',
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'~RLIKE~i' => '~*',
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),
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'insert_log_search_results_subject' => array(
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'~NOT\sRLIKE~i' => '!~*',
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'~RLIKE~i' => '~*',
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),
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);
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if (isset($replacements[$identifier]))
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$db_string = preg_replace(array_keys($replacements[$identifier]), array_values($replacements[$identifier]), $db_string);
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elseif (preg_match('~^\s*INSERT\sIGNORE~i', $db_string) != 0)
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{
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$db_string = preg_replace('~^\s*INSERT\sIGNORE~i', 'INSERT', $db_string);
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// Don't error on multi-insert.
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$db_values['db_error_skip'] = true;
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}
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$return = $smcFunc['db_query']('', $db_string,
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$db_values, $connection
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);
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return $return;
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}
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// Highly specific - create the custom word index table!
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function smf_db_create_word_search($size)
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{
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global $smcFunc;
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$size = 'int';
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$smcFunc['db_query']('', '
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CREATE TABLE {db_prefix}log_search_words (
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id_word {raw:size} NOT NULL default {string:string_zero},
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id_msg int NOT NULL default {string:string_zero},
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PRIMARY KEY (id_word, id_msg)
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)',
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array(
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'size' => $size,
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'string_zero' => '0',
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)
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);
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}
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?>
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