219888d489
git-svn-id: https://semanticscuttle.svn.sourceforge.net/svnroot/semanticscuttle/trunk@80 b3834d28-1941-0410-a4f8-b48e95affb8f
108 lines
3.5 KiB
PHP
108 lines
3.5 KiB
PHP
<?php
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class SearchHistoryService {
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var $db;
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var $tablename;
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var $sizeSearchHistory;
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function &getInstance(&$db) {
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static $instance;
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if (!isset($instance))
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$instance =& new SearchHistoryService($db);
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return $instance;
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}
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function SearchHistoryService(& $db) {
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$this->db =& $db;
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$this->tablename = $GLOBALS['tableprefix'] .'searchhistory';
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if(isset($GLOBALS['sizeSearchHistory'])) {
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$this->sizeSearchHistory = $GLOBALS['sizeSearchHistory'];
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} else {
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$this->sizeSearchHistory = 10;
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}
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}
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function addSearch($terms, $range, $nbResults, $uId=0) {
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if(strlen($terms) == 0) {
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return false;
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}
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$datetime = gmdate('Y-m-d H:i:s', time());
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//Insert values
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$values = array('shTerms'=>$terms, 'shRange'=>$range, 'shDatetime'=>$datetime, 'shNbResults'=>$nbResults, 'uId'=>$uId);
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$sql = 'INSERT INTO '. $this->getTableName() .' '. $this->db->sql_build_array('INSERT', $values);
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$this->db->sql_transaction('begin');
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if (!($dbresult = & $this->db->sql_query($sql))) {
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$this->db->sql_transaction('rollback');
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message_die(GENERAL_ERROR, 'Could not insert search history', '', __LINE__, __FILE__, $sql, $this->db);
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return false;
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}
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if($this->sizeSearchHistory != -1 &&
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$this->countSearches() > $this->sizeSearchHistory) {
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$this->deleteOldestSearch();
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}
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}
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function getAllSearches($range = NULL, $uId = NULL, $nb = NULL, $start = NULL, $distinct = false) {
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$sql = 'SELECT DISTINCT(shTerms), shId, shRange, shNbResults, shDatetime, uId';
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$sql.= ' FROM '. $this->getTableName();
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$sql.= ' WHERE 1=1';
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if($range != NULL) {
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$sql.= ' AND shRange = "'.$range.'"';
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} else {
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$sql.= ' AND shRange = "all"';
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}
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if($uId != NULL) {
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$sql.= ' AND uId = '.$uId;
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}
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if($distinct) {
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$sql.= ' GROUP BY shTerms';
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}
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$sql.= ' ORDER BY shId DESC';
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if (!($dbresult = & $this->db->sql_query_limit($sql, $nb, $start))) {
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message_die(GENERAL_ERROR, 'Could not get searches', '', __LINE__, __FILE__, $sql, $this->db);
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return false;
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}
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$searches = array();
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while ($row = & $this->db->sql_fetchrow($dbresult)) {
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$searches[] = $row;
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}
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return $searches;
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}
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function countSearches() {
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$sql = 'SELECT COUNT(*) AS `total` FROM '. $this->getTableName();
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if (!($result = & $this->db->sql_query($sql)) || (!($row = & $this->db->sql_fetchrow($result)))) {
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message_die(GENERAL_ERROR, 'Could not get total searches', '', __LINE__, __FILE__, $sql, $this->db);
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return false;
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}
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return $row['total'];
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}
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/* This function allows to limit the number of saved searches
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by deleting the oldest one */
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function deleteOldestSearch() {
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$sql = 'DELETE FROM '.$this->getTableName();
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$sql.= ' ORDER BY shId ASC LIMIT 1'; // warning: here the limit is important
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$this->db->sql_transaction('begin');
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if (!($dbresult = & $this->db->sql_query($sql))) {
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$this->db->sql_transaction('rollback');
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message_die(GENERAL_ERROR, 'Could not delete bookmarks', '', __LINE__, __FILE__, $query, $this->db);
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return false;
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}
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}
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function deleteAll() {
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$query = 'TRUNCATE TABLE `'. $this->getTableName() .'`';
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$this->db->sql_query($query);
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}
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// Properties
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function getTableName() { return $this->tablename; }
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function setTableName($value) { $this->tablename = $value; }
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}
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?>
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