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authormensonge <mensonge@b3834d28-1941-0410-a4f8-b48e95affb8f>2008-03-14 10:32:00 +0000
committermensonge <mensonge@b3834d28-1941-0410-a4f8-b48e95affb8f>2008-03-14 10:32:00 +0000
commit219888d4899fa1704452ed7169b718f6766aaa07 (patch)
tree5584dabf3b28af36af08ebbb55878fdf06103a29 /services/searchhistoryservice.php
parent6ab15b1c291b35bcb2564ae5a20e10ef19a208e9 (diff)
downloadsemanticscuttle-219888d4899fa1704452ed7169b718f6766aaa07.tar.gz
semanticscuttle-219888d4899fa1704452ed7169b718f6766aaa07.tar.bz2
New Feature: save searches (and display a searchhistory box)
git-svn-id: https://semanticscuttle.svn.sourceforge.net/svnroot/semanticscuttle/trunk@80 b3834d28-1941-0410-a4f8-b48e95affb8f
Diffstat (limited to 'services/searchhistoryservice.php')
-rw-r--r--services/searchhistoryservice.php108
1 files changed, 108 insertions, 0 deletions
diff --git a/services/searchhistoryservice.php b/services/searchhistoryservice.php
new file mode 100644
index 0000000..7389906
--- /dev/null
+++ b/services/searchhistoryservice.php
@@ -0,0 +1,108 @@
+<?php
+class SearchHistoryService {
+ var $db;
+ var $tablename;
+ var $sizeSearchHistory;
+
+ function &getInstance(&$db) {
+ static $instance;
+ if (!isset($instance))
+ $instance =& new SearchHistoryService($db);
+ return $instance;
+ }
+
+ function SearchHistoryService(& $db) {
+ $this->db =& $db;
+ $this->tablename = $GLOBALS['tableprefix'] .'searchhistory';
+ if(isset($GLOBALS['sizeSearchHistory'])) {
+ $this->sizeSearchHistory = $GLOBALS['sizeSearchHistory'];
+ } else {
+ $this->sizeSearchHistory = 10;
+ }
+ }
+
+ function addSearch($terms, $range, $nbResults, $uId=0) {
+ if(strlen($terms) == 0) {
+ return false;
+ }
+ $datetime = gmdate('Y-m-d H:i:s', time());
+
+ //Insert values
+ $values = array('shTerms'=>$terms, 'shRange'=>$range, 'shDatetime'=>$datetime, 'shNbResults'=>$nbResults, 'uId'=>$uId);
+ $sql = 'INSERT INTO '. $this->getTableName() .' '. $this->db->sql_build_array('INSERT', $values);
+ $this->db->sql_transaction('begin');
+ if (!($dbresult = & $this->db->sql_query($sql))) {
+ $this->db->sql_transaction('rollback');
+ message_die(GENERAL_ERROR, 'Could not insert search history', '', __LINE__, __FILE__, $sql, $this->db);
+ return false;
+ }
+
+ if($this->sizeSearchHistory != -1 &&
+ $this->countSearches() > $this->sizeSearchHistory) {
+ $this->deleteOldestSearch();
+ }
+ }
+
+ function getAllSearches($range = NULL, $uId = NULL, $nb = NULL, $start = NULL, $distinct = false) {
+ $sql = 'SELECT DISTINCT(shTerms), shId, shRange, shNbResults, shDatetime, uId';
+ $sql.= ' FROM '. $this->getTableName();
+ $sql.= ' WHERE 1=1';
+ if($range != NULL) {
+ $sql.= ' AND shRange = "'.$range.'"';
+ } else {
+ $sql.= ' AND shRange = "all"';
+ }
+ if($uId != NULL) {
+ $sql.= ' AND uId = '.$uId;
+ }
+ if($distinct) {
+ $sql.= ' GROUP BY shTerms';
+ }
+ $sql.= ' ORDER BY shId DESC';
+
+ if (!($dbresult = & $this->db->sql_query_limit($sql, $nb, $start))) {
+ message_die(GENERAL_ERROR, 'Could not get searches', '', __LINE__, __FILE__, $sql, $this->db);
+ return false;
+ }
+
+ $searches = array();
+ while ($row = & $this->db->sql_fetchrow($dbresult)) {
+ $searches[] = $row;
+ }
+ return $searches;
+ }
+
+ function countSearches() {
+ $sql = 'SELECT COUNT(*) AS `total` FROM '. $this->getTableName();
+ if (!($result = & $this->db->sql_query($sql)) || (!($row = & $this->db->sql_fetchrow($result)))) {
+ message_die(GENERAL_ERROR, 'Could not get total searches', '', __LINE__, __FILE__, $sql, $this->db);
+ return false;
+ }
+
+ return $row['total'];
+ }
+
+ /* This function allows to limit the number of saved searches
+ by deleting the oldest one */
+ function deleteOldestSearch() {
+ $sql = 'DELETE FROM '.$this->getTableName();
+ $sql.= ' ORDER BY shId ASC LIMIT 1'; // warning: here the limit is important
+
+ $this->db->sql_transaction('begin');
+ if (!($dbresult = & $this->db->sql_query($sql))) {
+ $this->db->sql_transaction('rollback');
+ message_die(GENERAL_ERROR, 'Could not delete bookmarks', '', __LINE__, __FILE__, $query, $this->db);
+ return false;
+ }
+ }
+
+ function deleteAll() {
+ $query = 'TRUNCATE TABLE `'. $this->getTableName() .'`';
+ $this->db->sql_query($query);
+ }
+
+ // Properties
+ function getTableName() { return $this->tablename; }
+ function setTableName($value) { $this->tablename = $value; }
+}
+?>