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-rw-r--r--services/bookmark2tagservice.php832
1 files changed, 417 insertions, 415 deletions
diff --git a/services/bookmark2tagservice.php b/services/bookmark2tagservice.php
index 9cafec9..26a05c1 100644
--- a/services/bookmark2tagservice.php
+++ b/services/bookmark2tagservice.php
@@ -1,188 +1,189 @@
<?php
class Bookmark2TagService {
- var $db;
- var $tablename;
-
- function &getInstance(&$db) {
- static $instance;
- if (!isset($instance))
- $instance =& new Bookmark2TagService($db);
- return $instance;
- }
-
- function Bookmark2TagService(&$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;
- }
- }
-
- //clean tags from strange characters
- $tags = str_replace(array('"', '\''), "_", $tags);
-
-
- $tags_count = count($tags);
- for ($i = 0; $i < $tags_count; $i++) {
- $tags[$i] = trim(strtolower($tags[$i]));
- if ($fromApi) {
- include_once(dirname(__FILE__) .'/../functions.inc.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(dirname(__FILE__) .'/../functions.inc.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 =& ServiceFactory::getServiceInstance('BookmarkService');
- $tts =& ServiceFactory::getServiceInstance('Tag2TagService');
-
- // Create links between tags
- foreach($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);
+ var $db;
+ var $tablename;
+
+ function &getInstance(&$db) {
+ static $instance;
+ if (!isset($instance))
+ $instance =& new Bookmark2TagService($db);
+ return $instance;
+ }
+
+ function Bookmark2TagService(&$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;
+ }
+ }
+
+ //clean tags from strange characters
+ $tags = str_replace(array('"', '\''), "_", $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(dirname(__FILE__) .'/../functions.inc.php');
+ $tags[$i] = convertTag($tags[$i], 'in');
}
- $tags[$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], '>', $uId);
+ }
+
+ if ($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(dirname(__FILE__) .'/../functions.inc.php');
+ if ($keys = multi_array_search($extension, $GLOBALS['filetypes'])) {
+ $tags[] = 'system:filetype:'. $extension;
+ $tags[] = 'system:media:'. array_shift($keys);
}
- $tags[$key] = $pieces[$nbPieces-1]; // Attach just the last tag to the bookmark
- }
- }
+ }
+ // 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 =& ServiceFactory::getServiceInstance('BookmarkService');
+ $tts =& ServiceFactory::getServiceInstance('Tag2TagService');
+
+ // Create links between tags
+ foreach($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] != '') {
- $values = array(
+
+ }
+
+ // Add the categories to the DB.
+ for ($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 =& ServiceFactory::getServiceInstance('BookmarkService');
-
- $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,
+ );
+
+ 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 =& ServiceFactory::getServiceInstance('BookmarkService');
+
+ $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',
@@ -191,245 +192,246 @@ class Bookmark2TagService {
$GLOBALS['tableprefix'].'bookmarks',
$uId);
- if (!($dbresult =& $this->db->sql_query($query))) {
- message_die(GENERAL_ERROR, 'Could not delete tags', '', __LINE__, __FILE__, $query, $this->db);
- return false;
- }
+ if (!($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_int($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 tag';
-
- 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'];
- }
-
- return $tags;
- }
-
- function &getTags($userid = NULL) {
- $userservice =& ServiceFactory::getServiceInstance('UserService');
- $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);
- 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);
- return $output;
- }
-
- // Returns the most popular tags used for a particular bookmark hash
- function &getRelatedTagsByHash($hash, $limit = 20) {
- $userservice = & ServiceFactory :: getServiceInstance('UserService');
- $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;
- }
- return $this->db->sql_fetchrowset($dbresult);
- }
-
- 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';
- } 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);
- 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 ($row['tCount'] > 0) {
- return true;
- }
- }
- return false;
- }
-
- function renameTag($userid, $old, $new, $fromApi = false) {
- $bookmarkservice =& ServiceFactory::getServiceInstance('BookmarkService');
-
- if (is_null($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, $old);
-
- // Attach new tags
- foreach(array_keys($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);
- }
-
-
- // Properties
- function getTableName() { return $this->tablename; }
- function setTableName($value) { $this->tablename = $value; }
+ return true;
+ }
+
+ function &getTagsForBookmark($bookmarkid) {
+ if (!is_int($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 tag';
+
+ 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'];
+ }
+
+ return $tags;
+ }
+
+ function &getTags($userid = NULL) {
+ $userservice =& ServiceFactory::getServiceInstance('UserService');
+ $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);
+ 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);
+ return $output;
+ }
+
+ // Returns the most popular tags used for a particular bookmark hash
+ function &getRelatedTagsByHash($hash, $limit = 20) {
+ $userservice = & ServiceFactory :: getServiceInstance('UserService');
+ $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);
+ return $output;
+ }
+
+ function &getPopularTags($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';
+ } 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);
+ 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 ($row['tCount'] > 0) {
+ return true;
+ }
+ }
+ return false;
+ }
+
+ function renameTag($userid, $old, $new, $fromApi = false) {
+ $bookmarkservice =& ServiceFactory::getServiceInstance('BookmarkService');
+
+ if (is_null($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, $old);
+
+ // Attach new tags
+ foreach(array_keys($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);
+ }
+
+
+ // Properties
+ function getTableName() { return $this->tablename; }
+ function setTableName($value) { $this->tablename = $value; }
}
?>