From d5f09b7e4d802cdc2d5f3f876c48ea918c961488 Mon Sep 17 00:00:00 2001 From: cweiske Date: Sat, 3 Oct 2009 21:52:30 +0000 Subject: make the application work again git-svn-id: https://semanticscuttle.svn.sourceforge.net/svnroot/semanticscuttle/trunk@388 b3834d28-1941-0410-a4f8-b48e95affb8f --- src/SemanticScuttle/Service/Tag2Tag.php | 388 ++++++++++++++++++++++++++++++++ 1 file changed, 388 insertions(+) create mode 100644 src/SemanticScuttle/Service/Tag2Tag.php (limited to 'src/SemanticScuttle/Service/Tag2Tag.php') diff --git a/src/SemanticScuttle/Service/Tag2Tag.php b/src/SemanticScuttle/Service/Tag2Tag.php new file mode 100644 index 0000000..b209d60 --- /dev/null +++ b/src/SemanticScuttle/Service/Tag2Tag.php @@ -0,0 +1,388 @@ +db =& $db; + $this->tablename = $GLOBALS['tableprefix'] .'tags2tags'; + } + + function addLinkedTags($tag1, $tag2, $relationType, $uId) { + $tagservice =SemanticScuttle_Service_Factory::getServiceInstance('Tag'); + $tag1 = $tagservice->normalize($tag1); + $tag2 = $tagservice->normalize($tag2); + + if($tag1 == $tag2 || strlen($tag1) == 0 || strlen($tag2) == 0 + || ($relationType != ">" && $relationType != "=") + || !is_numeric($uId) || $uId<=0 + || ($this->existsLinkedTags($tag1, $tag2, $relationType, $uId))) { + return false; + } + + $values = array('tag1' => $tag1, 'tag2' => $tag2, 'relationType'=> $relationType, 'uId'=> $uId); + $query = 'INSERT INTO '. $this->getTableName() .' '. $this->db->sql_build_array('INSERT', $values); + //die($query); + if (!($dbresult =& $this->db->sql_query($query))) { + $this->db->sql_transaction('rollback'); + message_die(GENERAL_ERROR, 'Could not attach tag to tag', '', __LINE__, __FILE__, $query, $this->db); + return false; + } + $this->db->sql_transaction('commit'); + + // Update stats and cache + $this->update($tag1, $tag2, $relationType, $uId); + + return true; + } + + // Return linked tags just for admin users + function getAdminLinkedTags($tag, $relationType, $inverseRelation = false, $stopList = array()) { + // look for admin ids + $userservice = SemanticScuttle_Service_Factory :: getServiceInstance('User'); + $adminIds = $userservice->getAdminIds(); + + //ask for their linked tags + return $this->getLinkedTags($tag, $relationType, $adminIds, $inverseRelation, $stopList); + } + + // Return the target linked tags. If inverseRelation is true, return the source linked tags. + function getLinkedTags($tag, $relationType, $uId = null, $inverseRelation = false, $stopList = array()) { + // Set up the SQL query. + if($inverseRelation) { + $queriedTag = "tag1"; + $givenTag = "tag2"; + } else { + $queriedTag = "tag2"; + $givenTag = "tag1"; + } + + $query = "SELECT DISTINCT ". $queriedTag ." as 'tag'"; + $query.= " FROM `". $this->getTableName() ."`"; + $query.= " WHERE 1=1"; + if($tag !=null) { + $query.= " AND ". $givenTag ." = '". $tag ."'"; + } + if($relationType) { + $query.= " AND relationType = '". $relationType ."'"; + } + if(is_array($uId)) { + $query.= " AND ( 1=0 "; //tricks always false + foreach($uId as $u) { + $query.= " OR uId = '".$u."'"; + } + $query.= " ) "; + } elseif($uId != null) { + $query.= " AND uId = '".$uId."'"; + } + //die($query); + if (! ($dbresult =& $this->db->sql_query($query)) ){ + message_die(GENERAL_ERROR, 'Could not get related tags', '', __LINE__, __FILE__, $query, $this->db); + return false; + } + + $rowset = $this->db->sql_fetchrowset($dbresult); + $output = array(); + foreach($rowset as $row) { + if(!in_array($row['tag'], $stopList)) { + $output[] = $row['tag']; + } + } + + //bijective case for '=' + if($relationType == '=' && $inverseRelation == false) { + //$stopList[] = $tag; + $bijectiveOutput = $this->getLinkedTags($tag, $relationType, $uId, true, $stopList); + $output = array_merge($output, $bijectiveOutput); + //$output = array_unique($output); // remove duplication + } + + $this->db->sql_freeresult($dbresult); + return $output; + } + + /* + * Returns all linked tags (all descendants if relation is >, + * all synonyms if relation is = ) + * $stopList allows to avoid cycle (a > b > a) between tags + */ + function getAllLinkedTags($tag1, $relationType, $uId, $stopList=array()) { + if(in_array($tag1, $stopList) || $tag1 == '') { + return array(); + } + + // try to find data in cache + $tcs = SemanticScuttle_Service_Factory::getServiceInstance('TagCache'); + if(count($stopList) == 0) { + $activatedCache = true; + } else { + $activatedCache = false; + } + + // look for existing links + $stopList[] = $tag1; + $linkedTags = $this->getLinkedTags($tag1, $relationType, $uId, false, $stopList); + if($relationType != '=') { + $linkedTags = array_merge($linkedTags, $this->getLinkedTags($tag1, '=', $uId, false, $stopList)); + } + + if(count($linkedTags) == 0) { + return array(); + + } else { + // use cache if possible + if($activatedCache) { + if($relationType == '>') { + $output = $tcs->getChildren($tag1, $uId); + } elseif($relationType == '=') { + $output = $tcs->getSynonyms($tag1, $uId); + } + if(count($output)>0) { + return $output; + } + } + + // else compute the links + $output = array(); + + foreach($linkedTags as $linkedTag) { + $allLinkedTags = $this->getAllLinkedTags($linkedTag, $relationType, $uId, $stopList); + $output[] = $linkedTag; + if(is_array($allLinkedTags)) { + $output = array_merge($output, $allLinkedTags); + } else { + $output[] = $allLinkedTags; + } + } + + // and save in cache + if($activatedCache == true && $uId>0) { + $tcs->updateTag($tag1, $relationType, $output, $uId); + } + + //$output = array_unique($output); // remove duplication + return $output; + + } + } + + function getOrphewTags($relationType, $uId = 0, $limit = null, $orderBy = null) { + $query = "SELECT DISTINCT tts.tag1 as tag"; + $query.= " FROM `". $this->getTableName() ."` tts"; + if($orderBy != null) { + $tsts =SemanticScuttle_Service_Factory::getServiceInstance('TagStat'); + $query.= ", ".$tsts->getTableName() ." tsts"; + } + $query.= " WHERE tts.tag1 <> ALL"; + $query.= " (SELECT DISTINCT tag2 FROM `". $this->getTableName() ."`"; + $query.= " WHERE relationType = '".$relationType."'"; + if($uId > 0) { + $query.= " AND uId = '".$uId."'"; + } + $query.= ")"; + if($uId > 0) { + $query.= " AND tts.uId = '".$uId."'"; + } + + switch($orderBy) { + case "nb": + $query.= " AND tts.tag1 = tsts.tag1"; + $query.= " AND tsts.relationType = '".$relationType."'"; + if($uId > 0) { + $query.= " AND tsts.uId = ".$uId; + } + $query.= " ORDER BY tsts.nb DESC"; + break; + case "depth": // by nb of descendants + $query.= " AND tts.tag1 = tsts.tag1"; + $query.= " AND tsts.relationType = '".$relationType."'"; + if($uId > 0) { + $query.= " AND tsts.uId = ".$uId; + } + $query.= " ORDER BY tsts.depth DESC"; + break; + case "nbupdate": + $query.= " AND tts.tag1 = tsts.tag1"; + $query.= " AND tsts.relationType = '".$relationType."'"; + if($uId > 0) { + $query.= " AND tsts.uId = ".$uId; + } + $query.= " ORDER BY tsts.nbupdate DESC"; + break; + } + + if($limit != null) { + $query.= " LIMIT 0,".$limit; + } + + if (! ($dbresult =& $this->db->sql_query($query)) ){ + message_die(GENERAL_ERROR, 'Could not get linked tags', '', __LINE__, __FILE__, $query, $this->db); + return false; + } + $output = $this->db->sql_fetchrowset($dbresult); + $this->db->sql_freeresult($dbresult); + return $output; + } + + function getMenuTags($uId) { + if(strlen($GLOBALS['menuTag']) < 1) { + return array(); + } else { + // we don't use the getAllLinkedTags function in order to improve performance + $query = "SELECT tag2 as 'tag', COUNT(tag2) as 'count'"; + $query.= " FROM `". $this->getTableName() ."`"; + $query.= " WHERE tag1 = '".$GLOBALS['menuTag']."'"; + $query.= " AND relationType = '>'"; + if($uId > 0) { + $query.= " AND uId = '".$uId."'"; + } + $query.= " GROUP BY tag2"; + $query.= " ORDER BY count DESC"; + $query.= " LIMIT 0, ".$GLOBALS['maxSizeMenuBlock']; + + if (! ($dbresult =& $this->db->sql_query($query)) ){ + message_die(GENERAL_ERROR, 'Could not get linked tags', '', __LINE__, __FILE__, $query, $this->db); + return false; + } + $output = $this->db->sql_fetchrowset($dbresult); + $this->db->sql_freeresult($dbresult); + return $output; + } + } + + + function existsLinkedTags($tag1, $tag2, $relationType, $uId) { + + //$tag1 = mysql_real_escape_string($tag1); + //$tag2 = mysql_real_escape_string($tag2); + + $query = "SELECT tag1, tag2, relationType, uId FROM `". $this->getTableName() ."`"; + $query.= " WHERE tag1 = '" .$tag1 ."'"; + $query.= " AND tag2 = '".$tag2."'"; + $query.= " AND relationType = '". $relationType ."'"; + $query.= " AND uId = '".$uId."'"; + + //echo($query."
\n"); + + return $this->db->sql_numrows($this->db->sql_query($query)) > 0; + } + + function getLinks($uId) { + $query = "SELECT tag1, tag2, relationType, uId FROM `". $this->getTableName() ."`"; + $query.= " WHERE 1=1"; + if($uId > 0) { + $query.= " AND uId = '".$uId."'"; + } + + return $this->db->sql_fetchrowset($this->db->sql_query($query)); + } + + function removeLinkedTags($tag1, $tag2, $relationType, $uId) { + if(($tag1 != '' && $tag1 == $tag2) || + ($relationType != ">" && $relationType != "=" && $relationType != "") || + ($tag1 == '' && $tag2 == '')) { + return false; + } + $query = 'DELETE FROM '. $this->getTableName(); + $query.= ' WHERE 1=1'; + $query.= strlen($tag1)>0 ? ' AND tag1 = "'. $tag1 .'"' : ''; + $query.= strlen($tag2)>0 ? ' AND tag2 = "'. $tag2 .'"' : ''; + $query.= strlen($relationType)>0 ? ' AND relationType = "'. $relationType .'"' : ''; + $query.= strlen($uId)>0 ? ' AND uId = "'. $uId .'"' : ''; + + if (!($dbresult =& $this->db->sql_query($query))) { + message_die(GENERAL_ERROR, 'Could not remove tag relation', '', __LINE__, __FILE__, $query, $this->db); + return false; + } + + + // Update stats and cache + $this->update($tag1, $tag2, $relationType, $uId); + + $this->db->sql_freeresult($dbresult); + return true; + } + + function removeLinkedTagsForUser($uId) { + $query = 'DELETE FROM '. $this->getTableName(); + $query.= ' WHERE uId = "'. $uId .'"'; + + if (!($dbresult =& $this->db->sql_query($query))) { + message_die(GENERAL_ERROR, 'Could not remove tag relation', '', __LINE__, __FILE__, $query, $this->db); + return false; + } + + + // Update stats and cache + $this->update('', '', '', $uId); + + $this->db->sql_freeresult($dbresult); + return true; + } + + function renameTag($uId, $oldName, $newName) { + $tagservice =SemanticScuttle_Service_Factory::getServiceInstance('Tag'); + $newName = $tagservice->normalize($newName); + + $query = 'UPDATE `'. $this->getTableName() .'`'; + $query.= ' SET tag1="'.$newName.'"'; + $query.= ' WHERE tag1="'.$oldName.'"'; + $query.= ' AND uId="'.$uId.'"'; + $this->db->sql_query($query); + + $query = 'UPDATE `'. $this->getTableName() .'`'; + $query.= ' SET tag2="'.$newName.'"'; + $query.= ' WHERE tag2="'.$oldName.'"'; + $query.= ' AND uId="'.$uId.'"'; + $this->db->sql_query($query); + + + // Update stats and cache + $this->update($oldName, NULL, '=', $uId); + $this->update($oldName, NULL, '>', $uId); + $this->update($newName, NULL, '=', $uId); + $this->update($newName, NULL, '>', $uId); + + return true; + + } + + function update($tag1, $tag2, $relationType, $uId) { + $tsts =SemanticScuttle_Service_Factory::getServiceInstance('TagStat'); + $tsts->updateStat($tag1, $relationType, $uId); + + $tcs = SemanticScuttle_Service_Factory::getServiceInstance('TagCache'); + $tcs->deleteByUser($uId); + } + + function deleteAll() { + $query = 'TRUNCATE TABLE `'. $this->getTableName() .'`'; + $this->db->sql_query($query); + + $tsts =SemanticScuttle_Service_Factory::getServiceInstance('TagStat'); + $tsts->deleteAll(); + } + + // Properties + function getTableName() { return $this->tablename; } + function setTableName($value) { $this->tablename = $value; } +} +?> -- cgit v1.2.3-54-g00ecf