convert tabs to spaces

git-svn-id: https://semanticscuttle.svn.sourceforge.net/svnroot/semanticscuttle/trunk@407 b3834d28-1941-0410-a4f8-b48e95affb8f

1 files changed, 462 insertions, 462 deletions

diff --git a/src/SemanticScuttle/Service/Bookmark2Tag.php b/src/SemanticScuttle/Service/Bookmark2Tag.php
index 2702acb..56c85ae 100644
--- a/src/SemanticScuttle/Service/Bookmark2Tag.php
+++ b/src/SemanticScuttle/Service/Bookmark2Tag.php
@@ -8,475 +8,475 @@ class SemanticScuttle_Service_Bookmark2Tag extends SemanticScuttle_DbService
      *
      * @return SemanticScuttle_Service
      */
-	public static function getInstance($db)
+    public static function getInstance($db)
     {
-		static $instance;
-		if (!isset($instance)) {
+        static $instance;
+        if (!isset($instance)) {
             $instance = new self($db);
         }
-		return $instance;
-	}
+        return $instance;
+    }
 
-	public function __construct($db)
+    public function __construct($db)
     {
-		$this->db = $db;
-		$this->tablename = $GLOBALS['tableprefix'] .'bookmarks2tags';
-	}
-
-	function isNotSystemTag($var) {
-		if (utf8_substr($var, 0, 7) == 'system:')
-		return false;
-		else
-		return true;
-	}
-
-	function attachTags($bookmarkid, $tags, $fromApi = false, $extension = NULL, $replace = true, $fromImport = false) {
-		// Make sure that categories is an array of trimmed strings, and that if the categories are
-		// coming in from an API call to add a bookmark, that underscores are converted into strings.
-		
-		if (!is_array($tags)) {
-			$tags = trim($tags);
-			if ($tags != '') {
-				if (substr($tags, -1) == ',') {
-					$tags = substr($tags, 0, -1);
-				}
-				if ($fromApi) {
-					$tags = explode(' ', $tags);
-				} else {
-					$tags = explode(',', $tags);
-				}
-			} else {
-				$tags = null;
-			}
-		}
-
-		$tagservice =SemanticScuttle_Service_Factory::get('Tag');
-		$tags = $tagservice->normalize($tags);
-
-
-		$tags_count = is_array($tags)?count($tags):0;
-		
-		for ($i = 0; $i < $tags_count; $i++) {
-			$tags[$i] = trim(strtolower($tags[$i]));
-			if ($fromApi) {
-				include_once 'SemanticScuttle/functions.php';
-				$tags[$i] = convertTag($tags[$i], 'in');
-			}
-		}
-
-		if ($tags_count > 0) {
-			// Remove system tags
-			$tags = array_filter($tags, array($this, "isNotSystemTag"));
-
-			// Eliminate any duplicate categories
-			$temp = array_unique($tags);
-			$tags = array_values($temp);
-		} else {
-			// Unfiled
-			$tags[] = 'system:unfiled';
-		}
-
-		// Media and file types
-		if (!is_null($extension)) {
-			include_once 'SemanticScuttle/functions.php';
-			
-			if ($keys = multi_array_search($extension, $GLOBALS['filetypes'])) {
-				$tags[] = 'system:filetype:'. $extension;
-				$tags[] = 'system:media:'. array_shift($keys);
-			}
-		}
-
-		// Imported
-		if ($fromImport) {
-			$tags[] = 'system:imported';
-		}
-
-		$this->db->sql_transaction('begin');
-
-		if ($replace) {
-			if (!$this->deleteTagsForBookmark($bookmarkid)){
-				$this->db->sql_transaction('rollback');
-				message_die(GENERAL_ERROR, 'Could not attach tags (deleting old ones failed)', '', __LINE__, __FILE__, $sql, $this->db);
-				return false;
-			}
-		}
-
-		$bs =SemanticScuttle_Service_Factory::get('Bookmark');
-		$tts =SemanticScuttle_Service_Factory::get('Tag2Tag');
-
-		// Create links between tags
-		foreach($tags as $key => $tag) {
-			if(strpos($tag, '=')) {
-				// case "="
-				$pieces = explode('=', $tag);
-				$nbPieces = count($pieces);
-				if($nbPieces > 1) {
-					for($i = 0; $i < $nbPieces-1; $i++) {
-						$bookmark = $bs->getBookmark($bookmarkid);
-						$uId = $bookmark['uId'];
-						$tts->addLinkedTags($pieces[$i], $pieces[$i+1], '=', $uId);
-					}
-					$tags[$key] = $pieces[0]; // Attach just the last tag to the bookmark
-				}
-			} else {
-				// case ">"
-				$pieces = explode('>', $tag);
-				$nbPieces = count($pieces);
-				if($nbPieces > 1) {
-					for($i = 0; $i < $nbPieces-1; $i++) {
-						$bookmark = $bs->getBookmark($bookmarkid);
-						$uId = $bookmark['uId'];
-						$tts->addLinkedTags($pieces[$i], $pieces[$i+1], '>', $uId);
-					}
-					$tags[$key] = $pieces[$nbPieces-1]; // Attach just the last tag to the bookmark
-				}
-			}
-
-
-		}
-
-		// Add the categories to the DB.
-		for ($i = 0; $i < count($tags); $i++) {
-			if ($tags[$i] != '') {
-				$values = array(
+        $this->db = $db;
+        $this->tablename = $GLOBALS['tableprefix'] .'bookmarks2tags';
+    }
+
+    function isNotSystemTag($var) {
+        if (utf8_substr($var, 0, 7) == 'system:')
+        return false;
+        else
+        return true;
+    }
+
+    function attachTags($bookmarkid, $tags, $fromApi = false, $extension = NULL, $replace = true, $fromImport = false) {
+        // Make sure that categories is an array of trimmed strings, and that if the categories are
+        // coming in from an API call to add a bookmark, that underscores are converted into strings.
+
+        if (!is_array($tags)) {
+            $tags = trim($tags);
+            if ($tags != '') {
+                if (substr($tags, -1) == ',') {
+                    $tags = substr($tags, 0, -1);
+                }
+                if ($fromApi) {
+                    $tags = explode(' ', $tags);
+                } else {
+                    $tags = explode(',', $tags);
+                }
+            } else {
+                $tags = null;
+            }
+        }
+
+        $tagservice =SemanticScuttle_Service_Factory::get('Tag');
+        $tags = $tagservice->normalize($tags);
+
+
+        $tags_count = is_array($tags)?count($tags):0;
+
+        for ($i = 0; $i < $tags_count; $i++) {
+            $tags[$i] = trim(strtolower($tags[$i]));
+            if ($fromApi) {
+                include_once 'SemanticScuttle/functions.php';
+                $tags[$i] = convertTag($tags[$i], 'in');
+            }
+        }
+
+        if ($tags_count > 0) {
+            // Remove system tags
+            $tags = array_filter($tags, array($this, "isNotSystemTag"));
+
+            // Eliminate any duplicate categories
+            $temp = array_unique($tags);
+            $tags = array_values($temp);
+        } else {
+            // Unfiled
+            $tags[] = 'system:unfiled';
+        }
+
+        // Media and file types
+        if (!is_null($extension)) {
+            include_once 'SemanticScuttle/functions.php';
+
+            if ($keys = multi_array_search($extension, $GLOBALS['filetypes'])) {
+                $tags[] = 'system:filetype:'. $extension;
+                $tags[] = 'system:media:'. array_shift($keys);
+            }
+        }
+
+        // Imported
+        if ($fromImport) {
+            $tags[] = 'system:imported';
+        }
+
+        $this->db->sql_transaction('begin');
+
+        if ($replace) {
+            if (!$this->deleteTagsForBookmark($bookmarkid)){
+                $this->db->sql_transaction('rollback');
+                message_die(GENERAL_ERROR, 'Could not attach tags (deleting old ones failed)', '', __LINE__, __FILE__, $sql, $this->db);
+                return false;
+            }
+        }
+
+        $bs =SemanticScuttle_Service_Factory::get('Bookmark');
+        $tts =SemanticScuttle_Service_Factory::get('Tag2Tag');
+
+        // Create links between tags
+        foreach($tags as $key => $tag) {
+            if(strpos($tag, '=')) {
+                // case "="
+                $pieces = explode('=', $tag);
+                $nbPieces = count($pieces);
+                if($nbPieces > 1) {
+                    for($i = 0; $i < $nbPieces-1; $i++) {
+                        $bookmark = $bs->getBookmark($bookmarkid);
+                        $uId = $bookmark['uId'];
+                        $tts->addLinkedTags($pieces[$i], $pieces[$i+1], '=', $uId);
+                    }
+                    $tags[$key] = $pieces[0]; // Attach just the last tag to the bookmark
+                }
+            } else {
+                // case ">"
+                $pieces = explode('>', $tag);
+                $nbPieces = count($pieces);
+                if($nbPieces > 1) {
+                    for($i = 0; $i < $nbPieces-1; $i++) {
+                        $bookmark = $bs->getBookmark($bookmarkid);
+                        $uId = $bookmark['uId'];
+                        $tts->addLinkedTags($pieces[$i], $pieces[$i+1], '>', $uId);
+                    }
+                    $tags[$key] = $pieces[$nbPieces-1]; // Attach just the last tag to the bookmark
+                }
+            }
+
+
+        }
+
+        // Add the categories to the DB.
+        for ($i = 0; $i < count($tags); $i++) {
+            if ($tags[$i] != '') {
+                $values = array(
                     'bId' => intval($bookmarkid),
                     'tag' => $tags[$i]
-				);
-
-				if (!$this->hasTag($bookmarkid, $tags[$i])) {
-					$sql = 'INSERT INTO '. $this->getTableName() .' '. $this->db->sql_build_array('INSERT', $values);
-					if (!($dbresult =& $this->db->sql_query($sql))) {
-						$this->db->sql_transaction('rollback');
-						message_die(GENERAL_ERROR, 'Could not attach tags', '', __LINE__, __FILE__, $sql, $this->db);
-						return false;
-					}
-				}
-			}
-		}
-		$this->db->sql_transaction('commit');
-		return true;
-	}
-
-	function deleteTag($uId, $tag) {
-		$bs =SemanticScuttle_Service_Factory::get('Bookmark');
-
-		$query = 'DELETE FROM '. $this->getTableName();
-		$query.= ' USING '. $this->getTableName() .', '. $bs->getTableName();
-		$query.= ' WHERE '. $this->getTableName() .'.bId = '. $bs->getTableName() .'.bId';
-		$query.= ' AND '. $bs->getTableName() .'.uId = '. $uId;
-		$query.= ' AND '. $this->getTableName() .'.tag = "'. $this->db->sql_escape($tag) .'"';
-
-		if (!($dbresult =& $this->db->sql_query($query))) {
-			message_die(GENERAL_ERROR, 'Could not delete tags', '', __LINE__, __FILE__, $query, $this->db);
-			return false;
-		}
-
-		return true;
-	}
-
-	function deleteTagsForBookmark($bookmarkid) {
-		if (!is_int($bookmarkid)) {
-			message_die(GENERAL_ERROR, 'Could not delete tags (invalid bookmarkid)', '', __LINE__, __FILE__, $query);
-			return false;
-		}
-
-		$query = 'DELETE FROM '. $this->getTableName() .' WHERE bId = '. intval($bookmarkid);
-
-		if (!($dbresult =& $this->db->sql_query($query))) {
-			message_die(GENERAL_ERROR, 'Could not delete tags', '', __LINE__, __FILE__, $query, $this->db);
-			return false;
-		}
-
-		return true;
-	}
-
-	/* Allow deletion in admin page */
-	function deleteTagsForUser($uId) {
-		$qmask = 'DELETE FROM %s USING %s, %s WHERE %s.bId = %s.bId AND %s.uId = %d';
-		$query = sprintf($qmask,
-		$this->getTableName(),
-		$this->getTableName(),
-		$GLOBALS['tableprefix'].'bookmarks',
-		$this->getTableName(),
-		$GLOBALS['tableprefix'].'bookmarks',
-		$GLOBALS['tableprefix'].'bookmarks',
-		$uId);
-
-		if (!($dbresult =& $this->db->sql_query($query))) {
-			message_die(GENERAL_ERROR, 'Could not delete tags', '', __LINE__, __FILE__, $query, $this->db);
-			return false;
-		}
-
-		return true;
-	}
-
-	function &getTagsForBookmark($bookmarkid) {
-		if (!is_numeric($bookmarkid)) {
-			message_die(GENERAL_ERROR, 'Could not get tags (invalid bookmarkid)', '', __LINE__, __FILE__, $query);
-			return false;
-		}
-
-		$query = 'SELECT tag FROM '. $this->getTableName() .' WHERE bId = '. intval($bookmarkid) .' AND LEFT(tag, 7) <> "system:" ORDER BY id ASC';
-
-		if (!($dbresult =& $this->db->sql_query($query))) {
-			message_die(GENERAL_ERROR, 'Could not get tags', '', __LINE__, __FILE__, $query, $this->db);
-			return false;
-		}
-
-		$tags = array();
-		while ($row =& $this->db->sql_fetchrow($dbresult)) {
-			$tags[] = $row['tag'];
-		}
-		$this->db->sql_freeresult($dbresult);
-		return $tags;
-	}
-
-	function &getTags($userid = NULL) {
-		$userservice =SemanticScuttle_Service_Factory::get('User');
-		$logged_on_user = $userservice->getCurrentUserId();
-
-		$query = 'SELECT T.tag, COUNT(B.bId) AS bCount FROM '. $GLOBALS['tableprefix'] .'bookmarks AS B INNER JOIN '. $userservice->getTableName() .' AS U ON B.uId = U.'. $userservice->getFieldName('primary') .' INNER JOIN '. $GLOBALS['tableprefix'] .'bookmarks2tags AS T ON B.bId = T.bId';
-
-		$conditions = array();
-		if (!is_null($userid)) {
-			$conditions['U.'. $userservice->getFieldName('primary')] = intval($userid);
-			if ($logged_on_user != $userid)
-			$conditions['B.bStatus'] = 0;
-		} else {
-			$conditions['B.bStatus'] = 0;
-		}
-
-		$query .= ' WHERE '. $this->db->sql_build_array('SELECT', $conditions) .' AND LEFT(T.tag, 7) <> "system:" GROUP BY T.tag ORDER BY bCount DESC, tag';
-
-		if (!($dbresult =& $this->db->sql_query($query))) {
-			message_die(GENERAL_ERROR, 'Could not get tags', '', __LINE__, __FILE__, $query, $this->db);
-			return false;
-		}
-
-		$output = $this->db->sql_fetchrowset($dbresult);
-		$this->db->sql_freeresult($dbresult);
-		return $output;
-	}
-
-
-	// Returns the tags related to the specified tags; i.e. attached to the same bookmarks
-	function &getRelatedTags($tags, $for_user = NULL, $logged_on_user = NULL, $limit = 10) {
-		$conditions = array();
-		// Only count the tags that are visible to the current user.
-		if ($for_user != $logged_on_user || is_null($for_user))
-		$conditions['B.bStatus'] = 0;
-
-		if (!is_null($for_user))
-		$conditions['B.uId'] = $for_user;
-
-		// Set up the tags, if need be.
-		if (is_numeric($tags))
-		$tags = NULL;
-		if (!is_array($tags) and !is_null($tags))
-		$tags = explode('+', trim($tags));
-
-		$tagcount = count($tags);
-		for ($i = 0; $i < $tagcount; $i++) {
-			$tags[$i] = trim($tags[$i]);
-		}
-
-		// Set up the SQL query.
-		$query_1 = 'SELECT DISTINCTROW T0.tag, COUNT(B.bId) AS bCount FROM '. $GLOBALS['tableprefix'] .'bookmarks AS B, '. $this->getTableName() .' AS T0';
-		$query_2 = '';
-		$query_3 = ' WHERE B.bId = T0.bId ';
-		if (count($conditions) > 0)
-		$query_4 = ' AND '. $this->db->sql_build_array('SELECT', $conditions);
-		else
-		$query_4 = '';
-		// Handle the parts of the query that depend on any tags that are present.
-		for ($i = 1; $i <= $tagcount; $i++) {
-			$query_2 .= ', '. $this->getTableName() .' AS T'. $i;
-			$query_4 .= ' AND T'. $i .'.bId = B.bId AND T'. $i .'.tag = "'. $this->db->sql_escape($tags[$i - 1]) .'" AND T0.tag <> "'. $this->db->sql_escape($tags[$i - 1]) .'"';
-		}
-		$query_5 = ' AND LEFT(T0.tag, 7) <> "system:" GROUP BY T0.tag ORDER BY bCount DESC, T0.tag';
-		$query = $query_1 . $query_2 . $query_3 . $query_4 . $query_5;
-
-		if (! ($dbresult =& $this->db->sql_query_limit($query, $limit)) ){
-			message_die(GENERAL_ERROR, 'Could not get related tags', '', __LINE__, __FILE__, $query, $this->db);
-			return false;
-		}
-		$output = $this->db->sql_fetchrowset($dbresult);
-		$this->db->sql_freeresult($dbresult);
-		return $output;
-	}
-
-	// Returns the most popular tags used for a particular bookmark hash
-	function &getRelatedTagsByHash($hash, $limit = 20) {
-		$userservice = SemanticScuttle_Service_Factory :: get('User');
-		$sId = $userservice->getCurrentUserId();
-		// Logged in
-		if ($userservice->isLoggedOn()) {
-			$arrWatch = $userservice->getWatchList($sId);
-			// From public bookmarks or user's own
-			$privacy = ' AND ((B.bStatus = 0) OR (B.uId = '. $sId .')';
-			// From shared bookmarks in watchlist
-			foreach ($arrWatch as $w) {
-				$privacy .= ' OR (B.uId = '. $w .' AND B.bStatus = 1)';
-			}
-			$privacy .= ') ';
-			// Not logged in
-		} else {
-			$privacy = ' AND B.bStatus = 0 ';
-		}
-
-		$query = 'SELECT T.tag, COUNT(T.tag) AS bCount FROM '.$GLOBALS['tableprefix'].'bookmarks AS B LEFT JOIN '.$GLOBALS['tableprefix'].'bookmarks2tags AS T ON B.bId = T.bId WHERE B.bHash = "'. $hash .'" '. $privacy .'AND LEFT(T.tag, 7) <> "system:" GROUP BY T.tag ORDER BY bCount DESC';
-
-		if (!($dbresult =& $this->db->sql_query_limit($query, $limit))) {
-			message_die(GENERAL_ERROR, 'Could not get related tags for this hash', '', __LINE__, __FILE__, $query, $this->db);
-			return false;
-		}
-		$output = $this->db->sql_fetchrowset($dbresult);
-		$this->db->sql_freeresult($dbresult);
-		return $output;
-	}
-	
-	function &getAdminTags($limit = 30, $logged_on_user = NULL, $days = NULL) {
-		// look for admin ids
-		$userservice = SemanticScuttle_Service_Factory :: get('User');
-		$adminIds = $userservice->getAdminIds();
-		
-		// ask for their tags
-		return $this->getPopularTags($adminIds, $limit, $logged_on_user, $days);
-	}
-	
-	function &getContactTags($user, $limit = 30, $logged_on_user = NULL, $days = NULL) {
-		// look for contact ids
-		$userservice = SemanticScuttle_Service_Factory :: get('User');
-		$contacts = $userservice->getWatchlist($user);
-		
-		// add the user (to show him/her also his/her tags)
-		if(!is_null($logged_on_user)) {
-			$contacts[] = $logged_on_user;
-		}
-		
-		// ask for their tags
-		return $this->getPopularTags($contacts, $limit, $logged_on_user, $days);
-	}	
-
-	// $users can be {NULL, an id, an array of id}
-	function &getPopularTags($user = NULL, $limit = 30, $logged_on_user = NULL, $days = NULL) {
-		// Only count the tags that are visible to the current user.
-		if (($user != $logged_on_user) || is_null($user) || ($user === false))
-		$privacy = ' AND B.bStatus = 0';
-		else
-		$privacy = '';
-
-		if (is_null($days) || !is_int($days))
-		$span = '';
-		else
-		$span = ' AND B.bDatetime > "'. date('Y-m-d H:i:s', time() - (86400 * $days)) .'"';
-
-		$query = 'SELECT T.tag, COUNT(T.bId) AS bCount FROM '. $this->getTableName() .' AS T, '. $GLOBALS['tableprefix'] .'bookmarks AS B WHERE ';
-		if (is_null($user) || ($user === false)) {
-			$query .= 'B.bId = T.bId AND B.bStatus = 0';
-		} elseif(is_array($user)) {
-			$query .= ' (1 = 0';  //tricks
-			foreach($user as $u) {			
-				$query .= ' OR B.uId = '. $this->db->sql_escape($u) .' AND B.bId = T.bId';
-			}
-			$query .= ' )';
-		} else {
-			$query .= 'B.uId = '. $this->db->sql_escape($user) .' AND B.bId = T.bId'. $privacy;
-		}
-		$query .= $span .' AND LEFT(T.tag, 7) <> "system:" GROUP BY T.tag ORDER BY bCount DESC, tag';
-
-		if (!($dbresult =& $this->db->sql_query_limit($query, $limit))) {
-			message_die(GENERAL_ERROR, 'Could not get popular tags', '', __LINE__, __FILE__, $query, $this->db);
-			return false;
-		}
-
-		$output = $this->db->sql_fetchrowset($dbresult);
-		$this->db->sql_freeresult($dbresult);
-		return $output;
-	}
-
-	function hasTag($bookmarkid, $tag) {
-		$query = 'SELECT COUNT(*) AS tCount FROM '. $this->getTableName() .' WHERE bId = '. intval($bookmarkid) .' AND tag ="'. $this->db->sql_escape($tag) .'"';
-
-		if (! ($dbresult =& $this->db->sql_query($query)) ) {
-			message_die(GENERAL_ERROR, 'Could not find tag', '', __LINE__, __FILE__, $query, $this->db);
-			return false;
-		}
-
-		if ($row =& $this->db->sql_fetchrow($dbresult)) {
-			if ($row['tCount'] > 0) {
-				$output = true;
-			}
-		}
-		$output = false;
-		$this->db->sql_freeresult($dbresult);
-		return $output;
-	}
-
-	function renameTag($userid, $old, $new, $fromApi = false) {
-		$bookmarkservice =SemanticScuttle_Service_Factory::get('Bookmark');
-		$tagservice =SemanticScuttle_Service_Factory::get('Tag');
-
-		if (is_null($userid) || is_null($old) || is_null($new))
-		return false;
-
-		// Find bookmarks with old tag
-		$bookmarksInfo =& $bookmarkservice->getBookmarks(0, NULL, $userid, $old);
-		$bookmarks =& $bookmarksInfo['bookmarks'];
-
-		// Delete old tag
-		$this->deleteTag($userid, $old);
-
-		// Attach new tags
-		$new = $tagservice->normalize($new);
-		
-		foreach(array_keys($bookmarks) as $key) {
-			$row =& $bookmarks[$key];
-			$this->attachTags($row['bId'], $new, $fromApi, NULL, false);
-		}
-
-		return true;
-	}
-
-	function &tagCloud($tags = NULL, $steps = 5, $sizemin = 90, $sizemax = 225, $sortOrder = NULL) {
-
-		if (is_null($tags) || count($tags) < 1) {
-			$output = false;
-			return $output;
-		}
-
-		$min = $tags[count($tags) - 1]['bCount'];
-		$max = $tags[0]['bCount'];
-
-		for ($i = 1; $i <= $steps; $i++) {
-			$delta = ($max - $min) / (2 * $steps - $i);
-			$limit[$i] = $i * $delta + $min;
-		}
-		$sizestep = ($sizemax - $sizemin) / $steps;
-		foreach ($tags as $row) {
-			$next = false;
-			for ($i = 1; $i <= $steps; $i++) {
-				if (!$next && $row['bCount'] <= $limit[$i]) {
-					$size = $sizestep * ($i - 1) + $sizemin;
-					$next = true;
-				}
-			}
-			$tempArray = array('size' => $size .'%');
-			$row = array_merge($row, $tempArray);
-			$output[] = $row;
-		}
-
-		if ($sortOrder == 'alphabet_asc') {
-			usort($output, create_function('$a,$b','return strcasecmp(utf8_deaccent($a["tag"]), utf8_deaccent($b["tag"]));'));
-		}
-
-		return $output;
-	}
-
-	function deleteAll() {
-		$query = 'TRUNCATE TABLE `'. $this->getTableName() .'`';
-		$this->db->sql_query($query);
-	}
+                );
+
+                if (!$this->hasTag($bookmarkid, $tags[$i])) {
+                    $sql = 'INSERT INTO '. $this->getTableName() .' '. $this->db->sql_build_array('INSERT', $values);
+                    if (!($dbresult =& $this->db->sql_query($sql))) {
+                        $this->db->sql_transaction('rollback');
+                        message_die(GENERAL_ERROR, 'Could not attach tags', '', __LINE__, __FILE__, $sql, $this->db);
+                        return false;
+                    }
+                }
+            }
+        }
+        $this->db->sql_transaction('commit');
+        return true;
+    }
+
+    function deleteTag($uId, $tag) {
+        $bs =SemanticScuttle_Service_Factory::get('Bookmark');
+
+        $query = 'DELETE FROM '. $this->getTableName();
+        $query.= ' USING '. $this->getTableName() .', '. $bs->getTableName();
+        $query.= ' WHERE '. $this->getTableName() .'.bId = '. $bs->getTableName() .'.bId';
+        $query.= ' AND '. $bs->getTableName() .'.uId = '. $uId;
+        $query.= ' AND '. $this->getTableName() .'.tag = "'. $this->db->sql_escape($tag) .'"';
+
+        if (!($dbresult =& $this->db->sql_query($query))) {
+            message_die(GENERAL_ERROR, 'Could not delete tags', '', __LINE__, __FILE__, $query, $this->db);
+            return false;
+        }
+
+        return true;
+    }
+
+    function deleteTagsForBookmark($bookmarkid) {
+        if (!is_int($bookmarkid)) {
+            message_die(GENERAL_ERROR, 'Could not delete tags (invalid bookmarkid)', '', __LINE__, __FILE__, $query);
+            return false;
+        }
+
+        $query = 'DELETE FROM '. $this->getTableName() .' WHERE bId = '. intval($bookmarkid);
+
+        if (!($dbresult =& $this->db->sql_query($query))) {
+            message_die(GENERAL_ERROR, 'Could not delete tags', '', __LINE__, __FILE__, $query, $this->db);
+            return false;
+        }
+
+        return true;
+    }
+
+    /* Allow deletion in admin page */
+    function deleteTagsForUser($uId) {
+        $qmask = 'DELETE FROM %s USING %s, %s WHERE %s.bId = %s.bId AND %s.uId = %d';
+        $query = sprintf($qmask,
+        $this->getTableName(),
+        $this->getTableName(),
+        $GLOBALS['tableprefix'].'bookmarks',
+        $this->getTableName(),
+        $GLOBALS['tableprefix'].'bookmarks',
+        $GLOBALS['tableprefix'].'bookmarks',
+        $uId);
+
+        if (!($dbresult =& $this->db->sql_query($query))) {
+            message_die(GENERAL_ERROR, 'Could not delete tags', '', __LINE__, __FILE__, $query, $this->db);
+            return false;
+        }
+
+        return true;
+    }
+
+    function &getTagsForBookmark($bookmarkid) {
+        if (!is_numeric($bookmarkid)) {
+            message_die(GENERAL_ERROR, 'Could not get tags (invalid bookmarkid)', '', __LINE__, __FILE__, $query);
+            return false;
+        }
+
+        $query = 'SELECT tag FROM '. $this->getTableName() .' WHERE bId = '. intval($bookmarkid) .' AND LEFT(tag, 7) <> "system:" ORDER BY id ASC';
+
+        if (!($dbresult =& $this->db->sql_query($query))) {
+            message_die(GENERAL_ERROR, 'Could not get tags', '', __LINE__, __FILE__, $query, $this->db);
+            return false;
+        }
+
+        $tags = array();
+        while ($row =& $this->db->sql_fetchrow($dbresult)) {
+            $tags[] = $row['tag'];
+        }
+        $this->db->sql_freeresult($dbresult);
+        return $tags;
+    }
+
+    function &getTags($userid = NULL) {
+        $userservice =SemanticScuttle_Service_Factory::get('User');
+        $logged_on_user = $userservice->getCurrentUserId();
+
+        $query = 'SELECT T.tag, COUNT(B.bId) AS bCount FROM '. $GLOBALS['tableprefix'] .'bookmarks AS B INNER JOIN '. $userservice->getTableName() .' AS U ON B.uId = U.'. $userservice->getFieldName('primary') .' INNER JOIN '. $GLOBALS['tableprefix'] .'bookmarks2tags AS T ON B.bId = T.bId';
+
+        $conditions = array();
+        if (!is_null($userid)) {
+            $conditions['U.'. $userservice->getFieldName('primary')] = intval($userid);
+            if ($logged_on_user != $userid)
+            $conditions['B.bStatus'] = 0;
+        } else {
+            $conditions['B.bStatus'] = 0;
+        }
+
+        $query .= ' WHERE '. $this->db->sql_build_array('SELECT', $conditions) .' AND LEFT(T.tag, 7) <> "system:" GROUP BY T.tag ORDER BY bCount DESC, tag';
+
+        if (!($dbresult =& $this->db->sql_query($query))) {
+            message_die(GENERAL_ERROR, 'Could not get tags', '', __LINE__, __FILE__, $query, $this->db);
+            return false;
+        }
+
+        $output = $this->db->sql_fetchrowset($dbresult);
+        $this->db->sql_freeresult($dbresult);
+        return $output;
+    }
+
+
+    // Returns the tags related to the specified tags; i.e. attached to the same bookmarks
+    function &getRelatedTags($tags, $for_user = NULL, $logged_on_user = NULL, $limit = 10) {
+        $conditions = array();
+        // Only count the tags that are visible to the current user.
+        if ($for_user != $logged_on_user || is_null($for_user))
+        $conditions['B.bStatus'] = 0;
+
+        if (!is_null($for_user))
+        $conditions['B.uId'] = $for_user;
+
+        // Set up the tags, if need be.
+        if (is_numeric($tags))
+        $tags = NULL;
+        if (!is_array($tags) and !is_null($tags))
+        $tags = explode('+', trim($tags));
+
+        $tagcount = count($tags);
+        for ($i = 0; $i < $tagcount; $i++) {
+            $tags[$i] = trim($tags[$i]);
+        }
+
+        // Set up the SQL query.
+        $query_1 = 'SELECT DISTINCTROW T0.tag, COUNT(B.bId) AS bCount FROM '. $GLOBALS['tableprefix'] .'bookmarks AS B, '. $this->getTableName() .' AS T0';
+        $query_2 = '';
+        $query_3 = ' WHERE B.bId = T0.bId ';
+        if (count($conditions) > 0)
+        $query_4 = ' AND '. $this->db->sql_build_array('SELECT', $conditions);
+        else
+        $query_4 = '';
+        // Handle the parts of the query that depend on any tags that are present.
+        for ($i = 1; $i <= $tagcount; $i++) {
+            $query_2 .= ', '. $this->getTableName() .' AS T'. $i;
+            $query_4 .= ' AND T'. $i .'.bId = B.bId AND T'. $i .'.tag = "'. $this->db->sql_escape($tags[$i - 1]) .'" AND T0.tag <> "'. $this->db->sql_escape($tags[$i - 1]) .'"';
+        }
+        $query_5 = ' AND LEFT(T0.tag, 7) <> "system:" GROUP BY T0.tag ORDER BY bCount DESC, T0.tag';
+        $query = $query_1 . $query_2 . $query_3 . $query_4 . $query_5;
+
+        if (! ($dbresult =& $this->db->sql_query_limit($query, $limit)) ){
+            message_die(GENERAL_ERROR, 'Could not get related tags', '', __LINE__, __FILE__, $query, $this->db);
+            return false;
+        }
+        $output = $this->db->sql_fetchrowset($dbresult);
+        $this->db->sql_freeresult($dbresult);
+        return $output;
+    }
+
+    // Returns the most popular tags used for a particular bookmark hash
+    function &getRelatedTagsByHash($hash, $limit = 20) {
+        $userservice = SemanticScuttle_Service_Factory :: get('User');
+        $sId = $userservice->getCurrentUserId();
+        // Logged in
+        if ($userservice->isLoggedOn()) {
+            $arrWatch = $userservice->getWatchList($sId);
+            // From public bookmarks or user's own
+            $privacy = ' AND ((B.bStatus = 0) OR (B.uId = '. $sId .')';
+            // From shared bookmarks in watchlist
+            foreach ($arrWatch as $w) {
+                $privacy .= ' OR (B.uId = '. $w .' AND B.bStatus = 1)';
+            }
+            $privacy .= ') ';
+            // Not logged in
+        } else {
+            $privacy = ' AND B.bStatus = 0 ';
+        }
+
+        $query = 'SELECT T.tag, COUNT(T.tag) AS bCount FROM '.$GLOBALS['tableprefix'].'bookmarks AS B LEFT JOIN '.$GLOBALS['tableprefix'].'bookmarks2tags AS T ON B.bId = T.bId WHERE B.bHash = "'. $hash .'" '. $privacy .'AND LEFT(T.tag, 7) <> "system:" GROUP BY T.tag ORDER BY bCount DESC';
+
+        if (!($dbresult =& $this->db->sql_query_limit($query, $limit))) {
+            message_die(GENERAL_ERROR, 'Could not get related tags for this hash', '', __LINE__, __FILE__, $query, $this->db);
+            return false;
+        }
+        $output = $this->db->sql_fetchrowset($dbresult);
+        $this->db->sql_freeresult($dbresult);
+        return $output;
+    }
+
+    function &getAdminTags($limit = 30, $logged_on_user = NULL, $days = NULL) {
+        // look for admin ids
+        $userservice = SemanticScuttle_Service_Factory :: get('User');
+        $adminIds = $userservice->getAdminIds();
+
+        // ask for their tags
+        return $this->getPopularTags($adminIds, $limit, $logged_on_user, $days);
+    }
+
+    function &getContactTags($user, $limit = 30, $logged_on_user = NULL, $days = NULL) {
+        // look for contact ids
+        $userservice = SemanticScuttle_Service_Factory :: get('User');
+        $contacts = $userservice->getWatchlist($user);
+
+        // add the user (to show him/her also his/her tags)
+        if(!is_null($logged_on_user)) {
+            $contacts[] = $logged_on_user;
+        }
+
+        // ask for their tags
+        return $this->getPopularTags($contacts, $limit, $logged_on_user, $days);
+    }
+
+    // $users can be {NULL, an id, an array of id}
+    function &getPopularTags($user = NULL, $limit = 30, $logged_on_user = NULL, $days = NULL) {
+        // Only count the tags that are visible to the current user.
+        if (($user != $logged_on_user) || is_null($user) || ($user === false))
+        $privacy = ' AND B.bStatus = 0';
+        else
+        $privacy = '';
+
+        if (is_null($days) || !is_int($days))
+        $span = '';
+        else
+        $span = ' AND B.bDatetime > "'. date('Y-m-d H:i:s', time() - (86400 * $days)) .'"';
+
+        $query = 'SELECT T.tag, COUNT(T.bId) AS bCount FROM '. $this->getTableName() .' AS T, '. $GLOBALS['tableprefix'] .'bookmarks AS B WHERE ';
+        if (is_null($user) || ($user === false)) {
+            $query .= 'B.bId = T.bId AND B.bStatus = 0';
+        } elseif(is_array($user)) {
+            $query .= ' (1 = 0';  //tricks
+            foreach($user as $u) {
+                $query .= ' OR B.uId = '. $this->db->sql_escape($u) .' AND B.bId = T.bId';
+            }
+            $query .= ' )';
+        } else {
+            $query .= 'B.uId = '. $this->db->sql_escape($user) .' AND B.bId = T.bId'. $privacy;
+        }
+        $query .= $span .' AND LEFT(T.tag, 7) <> "system:" GROUP BY T.tag ORDER BY bCount DESC, tag';
+
+        if (!($dbresult =& $this->db->sql_query_limit($query, $limit))) {
+            message_die(GENERAL_ERROR, 'Could not get popular tags', '', __LINE__, __FILE__, $query, $this->db);
+            return false;
+        }
+
+        $output = $this->db->sql_fetchrowset($dbresult);
+        $this->db->sql_freeresult($dbresult);
+        return $output;
+    }
+
+    function hasTag($bookmarkid, $tag) {
+        $query = 'SELECT COUNT(*) AS tCount FROM '. $this->getTableName() .' WHERE bId = '. intval($bookmarkid) .' AND tag ="'. $this->db->sql_escape($tag) .'"';
+
+        if (! ($dbresult =& $this->db->sql_query($query)) ) {
+            message_die(GENERAL_ERROR, 'Could not find tag', '', __LINE__, __FILE__, $query, $this->db);
+            return false;
+        }
+
+        if ($row =& $this->db->sql_fetchrow($dbresult)) {
+            if ($row['tCount'] > 0) {
+                $output = true;
+            }
+        }
+        $output = false;
+        $this->db->sql_freeresult($dbresult);
+        return $output;
+    }
+
+    function renameTag($userid, $old, $new, $fromApi = false) {
+        $bookmarkservice =SemanticScuttle_Service_Factory::get('Bookmark');
+        $tagservice =SemanticScuttle_Service_Factory::get('Tag');
+
+        if (is_null($userid) || is_null($old) || is_null($new))
+        return false;
+
+        // Find bookmarks with old tag
+        $bookmarksInfo =& $bookmarkservice->getBookmarks(0, NULL, $userid, $old);
+        $bookmarks =& $bookmarksInfo['bookmarks'];
+
+        // Delete old tag
+        $this->deleteTag($userid, $old);
+
+        // Attach new tags
+        $new = $tagservice->normalize($new);
+
+        foreach(array_keys($bookmarks) as $key) {
+            $row =& $bookmarks[$key];
+            $this->attachTags($row['bId'], $new, $fromApi, NULL, false);
+        }
+
+        return true;
+    }
+
+    function &tagCloud($tags = NULL, $steps = 5, $sizemin = 90, $sizemax = 225, $sortOrder = NULL) {
+
+        if (is_null($tags) || count($tags) < 1) {
+            $output = false;
+            return $output;
+        }
+
+        $min = $tags[count($tags) - 1]['bCount'];
+        $max = $tags[0]['bCount'];
+
+        for ($i = 1; $i <= $steps; $i++) {
+            $delta = ($max - $min) / (2 * $steps - $i);
+            $limit[$i] = $i * $delta + $min;
+        }
+        $sizestep = ($sizemax - $sizemin) / $steps;
+        foreach ($tags as $row) {
+            $next = false;
+            for ($i = 1; $i <= $steps; $i++) {
+                if (!$next && $row['bCount'] <= $limit[$i]) {
+                    $size = $sizestep * ($i - 1) + $sizemin;
+                    $next = true;
+                }
+            }
+            $tempArray = array('size' => $size .'%');
+            $row = array_merge($row, $tempArray);
+            $output[] = $row;
+        }
+
+        if ($sortOrder == 'alphabet_asc') {
+            usort($output, create_function('$a,$b','return strcasecmp(utf8_deaccent($a["tag"]), utf8_deaccent($b["tag"]));'));
+        }
+
+        return $output;
+    }
+
+    function deleteAll() {
+        $query = 'TRUNCATE TABLE `'. $this->getTableName() .'`';
+        $this->db->sql_query($query);
+    }
 
 }
 ?>