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-rw-r--r--src/SemanticScuttle/Service/tag2tagservice.php377
1 files changed, 377 insertions, 0 deletions
diff --git a/src/SemanticScuttle/Service/tag2tagservice.php b/src/SemanticScuttle/Service/tag2tagservice.php
new file mode 100644
index 0000000..956fd49
--- /dev/null
+++ b/src/SemanticScuttle/Service/tag2tagservice.php
@@ -0,0 +1,377 @@
+<?php
+class Tag2TagService {
+ var $db;
+ var $tablename;
+
+ function &getInstance(&$db) {
+ static $instance;
+ if (!isset($instance))
+ $instance =& new Tag2TagService($db);
+ return $instance;
+ }
+
+ function Tag2TagService(&$db) {
+ $this->db =& $db;
+ $this->tablename = $GLOBALS['tableprefix'] .'tags2tags';
+ }
+
+ function addLinkedTags($tag1, $tag2, $relationType, $uId) {
+ $tagservice =& ServiceFactory::getServiceInstance('TagService');
+ $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 = & ServiceFactory :: getServiceInstance('UserService');
+ $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
+ $tcs = & ServiceFactory::getServiceInstance('TagCacheService');
+ if(count($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 =& ServiceFactory::getServiceInstance('TagStatService');
+ $query.= ", ".$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."<br>\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 =& ServiceFactory::getServiceInstance('TagService');
+ $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 =& ServiceFactory::getServiceInstance('TagStatService');
+ $tsts->updateStat($tag1, $relationType, $uId);
+
+ $tcs = & ServiceFactory::getServiceInstance('TagCacheService');
+ $tcs->deleteByUser($uId);
+ }
+
+ function deleteAll() {
+ $query = 'TRUNCATE TABLE `'. $this->getTableName() .'`';
+ $this->db->sql_query($query);
+
+ $tsts =& ServiceFactory::getServiceInstance('TagStatService');
+ $tsts->deleteAll();
+ }
+
+ // Properties
+ function getTableName() { return $this->tablename; }
+ function setTableName($value) { $this->tablename = $value; }
+}
+?>
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-26 18:20:50 +0000