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< ? php
class BookmarkService {
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var $db ;
var $tablename ;
function & getInstance ( & $db ) {
static $instance ;
if ( ! isset ( $instance ))
$instance = & new BookmarkService ( $db );
return $instance ;
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}
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function BookmarkService ( & $db ) {
$this -> db = & $db ;
$this -> tablename = $GLOBALS [ 'tableprefix' ] . 'bookmarks' ;
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}
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function _getbookmark ( $fieldname , $value , $all = false ) {
if ( ! $all ) {
$userservice = & ServiceFactory :: getServiceInstance ( 'UserService' );
$sId = $userservice -> getCurrentUserId ();
$range = ' AND uId = ' . $sId ;
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} else {
$range = '' ;
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}
$query = 'SELECT * FROM ' . $this -> getTableName () . ' WHERE ' . $fieldname . ' = "' . $this -> db -> sql_escape ( $value ) . '"' . $range ;
if ( ! ( $dbresult = & $this -> db -> sql_query_limit ( $query , 1 , 0 ))) {
message_die ( GENERAL_ERROR , 'Could not get bookmark' , '' , __LINE__ , __FILE__ , $query , $this -> db );
return false ;
}
if ( $row =& $this -> db -> sql_fetchrow ( $dbresult )) {
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$output = $row ;
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} else {
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$output = false ;
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}
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$this -> db -> sql_freeresult ( $dbresult );
return $output ;
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}
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function & getBookmark ( $bid , $include_tags = false ) {
if ( ! is_numeric ( $bid ))
return ;
$sql = 'SELECT * FROM ' . $this -> getTableName () . ' WHERE bId = ' . $this -> db -> sql_escape ( $bid );
if ( ! ( $dbresult = & $this -> db -> sql_query ( $sql )))
message_die ( GENERAL_ERROR , 'Could not get vars' , '' , __LINE__ , __FILE__ , $sql , $this -> db );
if ( $row = & $this -> db -> sql_fetchrow ( $dbresult )) {
if ( $include_tags ) {
$b2tservice = & ServiceFactory :: getServiceInstance ( 'Bookmark2TagService' );
$row [ 'tags' ] = $b2tservice -> getTagsForBookmark ( $bid );
}
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$output = $row ;
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} else {
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$output = false ;
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}
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$this -> db -> sql_freeresult ( $dbresult );
return $output ;
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}
function getBookmarkByAddress ( $address ) {
$hash = md5 ( $address );
return $this -> getBookmarkByHash ( $hash );
}
function getBookmarkByHash ( $hash ) {
return $this -> _getbookmark ( 'bHash' , $hash , true );
}
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/* Counts bookmarks for a user. $range = {'public', 'shared', 'private', 'all'}*/
function countBookmarks ( $uId , $range = 'public' ) {
$sql = 'SELECT COUNT(*) FROM ' . $GLOBALS [ 'tableprefix' ] . 'bookmarks' ;
$sql .= ' WHERE uId = ' . $uId ;
switch ( $range ) {
case 'all' :
//no constraints
break ;
case 'private' :
$sql .= ' AND bStatus = 2' ;
break ;
case 'shared' :
$sql .= ' AND bStatus = 1' ;
break ;
case 'public' :
default :
$sql .= ' AND bStatus = 0' ;
break ;
}
if ( ! ( $dbresult = & $this -> db -> sql_query ( $sql ))) {
message_die ( GENERAL_ERROR , 'Could not get vars' , '' , __LINE__ , __FILE__ , $sql , $this -> db );
}
return $this -> db -> sql_fetchfield ( 0 , 0 );
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}
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function editAllowed ( $bookmark ) {
if ( ! is_numeric ( $bookmark ) && ( ! is_array ( $bookmark ) || ! is_numeric ( $bookmark [ 'bId' ])))
return false ;
if ( ! is_array ( $bookmark ))
if ( ! ( $bookmark = $this -> getBookmark ( $bookmark )))
return false ;
$userservice = & ServiceFactory :: getServiceInstance ( 'UserService' );
$userid = $userservice -> getCurrentUserId ();
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if ( $GLOBALS [ 'adminsCanModifyBookmarksFromOtherUsers' ] && $userservice -> isAdmin ( $userid ))
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return true ;
else
return ( $bookmark [ 'uId' ] == $userid );
}
function bookmarkExists ( $address = false , $uid = NULL ) {
if ( ! $address ) {
return ;
}
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$address = $this -> normalize ( $address );
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$crit = array ( 'bHash' => md5 ( $address ));
if ( isset ( $uid )) {
$crit [ 'uId' ] = $uid ;
}
$sql = 'SELECT COUNT(*) FROM ' . $GLOBALS [ 'tableprefix' ] . 'bookmarks WHERE ' . $this -> db -> sql_build_array ( 'SELECT' , $crit );
if ( ! ( $dbresult = & $this -> db -> sql_query ( $sql ))) {
message_die ( GENERAL_ERROR , 'Could not get vars' , '' , __LINE__ , __FILE__ , $sql , $this -> db );
}
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if ( $this -> db -> sql_fetchfield ( 0 , 0 ) > 0 ) {
$output = true ;
} else {
$output = false ;
}
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$this -> db -> sql_freeresult ( $dbresult );
return $output ;
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}
// Adds a bookmark to the database.
// Note that date is expected to be a string that's interpretable by strtotime().
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function addBookmark ( $address , $title , $description , $privateNote , $status , $categories , $date = NULL , $fromApi = false , $fromImport = false , $sId = - 1 ) {
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if ( $sId == - 1 ) {
$userservice = & ServiceFactory :: getServiceInstance ( 'UserService' );
$sId = $userservice -> getCurrentUserId ();
}
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$address = $this -> normalize ( $address );
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// Get the client's IP address and the date; note that the date is in GMT.
if ( getenv ( 'HTTP_CLIENT_IP' ))
$ip = getenv ( 'HTTP_CLIENT_IP' );
else
if ( getenv ( 'REMOTE_ADDR' ))
$ip = getenv ( 'REMOTE_ADDR' );
else
$ip = getenv ( 'HTTP_X_FORWARDED_FOR' );
// Note that if date is NULL, then it's added with a date and time of now, and if it's present,
// it's expected to be a string that's interpretable by strtotime().
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if ( is_null ( $date ) || $date == '' )
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$time = time ();
else
$time = strtotime ( $date );
$datetime = gmdate ( 'Y-m-d H:i:s' , $time );
// Set up the SQL insert statement and execute it.
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$values = array ( 'uId' => intval ( $sId ), 'bIp' => $ip , 'bDatetime' => $datetime , 'bModified' => $datetime , 'bTitle' => $title , 'bAddress' => $address , 'bDescription' => $description , 'bPrivateNote' => $privateNote , 'bStatus' => intval ( $status ), 'bHash' => md5 ( $address ));
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$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 bookmark' , '' , __LINE__ , __FILE__ , $sql , $this -> db );
return false ;
}
// Get the resultant row ID for the bookmark.
$bId = $this -> db -> sql_nextid ( $dbresult );
if ( ! isset ( $bId ) || ! is_int ( $bId )) {
$this -> db -> sql_transaction ( 'rollback' );
message_die ( GENERAL_ERROR , 'Could not insert bookmark' , '' , __LINE__ , __FILE__ , $sql , $this -> db );
return false ;
}
$uriparts = explode ( '.' , $address );
$extension = end ( $uriparts );
unset ( $uriparts );
$b2tservice = & ServiceFactory :: getServiceInstance ( 'Bookmark2TagService' );
if ( ! $b2tservice -> attachTags ( $bId , $categories , $fromApi , $extension , false , $fromImport )) {
$this -> db -> sql_transaction ( 'rollback' );
message_die ( GENERAL_ERROR , 'Could not insert bookmark' , '' , __LINE__ , __FILE__ , $sql , $this -> db );
return false ;
}
$this -> db -> sql_transaction ( 'commit' );
// Everything worked out, so return the new bookmark's bId.
return $bId ;
}
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function updateBookmark ( $bId , $address , $title , $description , $privateNote , $status , $categories , $date = NULL , $fromApi = false ) {
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if ( ! is_numeric ( $bId ))
return false ;
// Get the client's IP address and the date; note that the date is in GMT.
if ( getenv ( 'HTTP_CLIENT_IP' ))
$ip = getenv ( 'HTTP_CLIENT_IP' );
else
if ( getenv ( 'REMOTE_ADDR' ))
$ip = getenv ( 'REMOTE_ADDR' );
else
$ip = getenv ( 'HTTP_X_FORWARDED_FOR' );
$moddatetime = gmdate ( 'Y-m-d H:i:s' , time ());
// Set up the SQL update statement and execute it.
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$updates = array ( 'bModified' => $moddatetime , 'bTitle' => $title , 'bAddress' => $address , 'bDescription' => $description , 'bPrivateNote' => $privateNote , 'bStatus' => $status , 'bHash' => md5 ( $address ));
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if ( ! is_null ( $date )) {
$datetime = gmdate ( 'Y-m-d H:i:s' , strtotime ( $date ));
$updates [] = array ( 'bDateTime' => $datetime );
}
$sql = 'UPDATE ' . $GLOBALS [ 'tableprefix' ] . 'bookmarks SET ' . $this -> db -> sql_build_array ( 'UPDATE' , $updates ) . ' WHERE bId = ' . intval ( $bId );
$this -> db -> sql_transaction ( 'begin' );
if ( ! ( $dbresult = & $this -> db -> sql_query ( $sql ))) {
$this -> db -> sql_transaction ( 'rollback' );
message_die ( GENERAL_ERROR , 'Could not update bookmark' , '' , __LINE__ , __FILE__ , $sql , $this -> db );
return false ;
}
$uriparts = explode ( '.' , $address );
$extension = end ( $uriparts );
unset ( $uriparts );
$b2tservice = & ServiceFactory :: getServiceInstance ( 'Bookmark2TagService' );
if ( ! $b2tservice -> attachTags ( $bId , $categories , $fromApi , $extension )) {
$this -> db -> sql_transaction ( 'rollback' );
message_die ( GENERAL_ERROR , 'Could not update bookmark' , '' , __LINE__ , __FILE__ , $sql , $this -> db );
return false ;
}
$this -> db -> sql_transaction ( 'commit' );
// Everything worked out, so return true.
return true ;
}
function & getBookmarks ( $start = 0 , $perpage = NULL , $user = NULL , $tags = NULL , $terms = NULL , $sortOrder = NULL , $watched = NULL , $startdate = NULL , $enddate = NULL , $hash = NULL ) {
// Only get the bookmarks that are visible to the current user. Our rules:
// - if the $user is NULL, that means get bookmarks from ALL users, so we need to make
// sure to check the logged-in user's watchlist and get the contacts-only bookmarks from
// those users. If the user isn't logged-in, just get the public bookmarks.
// - if the $user is set and isn't the logged-in user, then get that user's bookmarks, and
// if that user is on the logged-in user's watchlist, get the public AND contacts-only
// bookmarks; otherwise, just get the public bookmarks.
// - if the $user is set and IS the logged-in user, then get all bookmarks.
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$userservice =& ServiceFactory :: getServiceInstance ( 'UserService' );
$b2tservice =& ServiceFactory :: getServiceInstance ( 'Bookmark2TagService' );
$tag2tagservice =& ServiceFactory :: getServiceInstance ( 'Tag2TagService' );
$sId = $userservice -> getCurrentUserId ();
if ( $userservice -> isLoggedOn ()) {
// All public bookmarks, user's own bookmarks and any shared with user
$privacy = ' AND ((B.bStatus = 0) OR (B.uId = ' . $sId . ')' ;
$watchnames = $userservice -> getWatchNames ( $sId , true );
foreach ( $watchnames as $watchuser ) {
$privacy .= ' OR (U.username = "' . $watchuser . '" AND B.bStatus = 1)' ;
}
$privacy .= ')' ;
} else {
// Just public bookmarks
$privacy = ' AND B.bStatus = 0' ;
}
// Set up the tags, if need be.
if ( ! is_array ( $tags ) && ! 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 DISTINCT ' ;
if ( SQL_LAYER == 'mysql4' ) {
$query_1 .= 'SQL_CALC_FOUND_ROWS ' ;
}
$query_1 .= 'B.*, U.' . $userservice -> getFieldName ( 'username' );
$query_2 = ' FROM ' . $userservice -> getTableName () . ' AS U, ' . $this -> getTableName () . ' AS B' ;
$query_3 = ' WHERE B.uId = U.' . $userservice -> getFieldName ( 'primary' ) . $privacy ;
if ( is_null ( $watched )) {
if ( ! is_null ( $user )) {
$query_3 .= ' AND B.uId = ' . $user ;
}
} else {
$arrWatch = $userservice -> getWatchlist ( $user );
if ( count ( $arrWatch ) > 0 ) {
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$query_3_1 = '' ;
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foreach ( $arrWatch as $row ) {
$query_3_1 .= 'B.uId = ' . intval ( $row ) . ' OR ' ;
}
$query_3_1 = substr ( $query_3_1 , 0 , - 3 );
} else {
$query_3_1 = 'B.uId = -1' ;
}
$query_3 .= ' AND (' . $query_3_1 . ') AND B.bStatus IN (0, 1)' ;
}
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$query_5 = '' ;
if ( $hash == null ) {
$query_5 .= ' GROUP BY B.bHash' ;
}
switch ( $sortOrder ) {
case 'date_asc' :
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$query_5 .= ' ORDER BY B.bModified ASC ' ;
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break ;
case 'title_desc' :
$query_5 .= ' ORDER BY B.bTitle DESC ' ;
break ;
case 'title_asc' :
$query_5 .= ' ORDER BY B.bTitle ASC ' ;
break ;
case 'url_desc' :
$query_5 .= ' ORDER BY B.bAddress DESC ' ;
break ;
case 'url_asc' :
$query_5 .= ' ORDER BY B.bAddress ASC ' ;
break ;
default :
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$query_5 .= ' ORDER BY B.bModified DESC ' ;
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}
// Handle the parts of the query that depend on any tags that are present.
$query_4 = '' ;
for ( $i = 0 ; $i < $tagcount ; $i ++ ) {
$query_2 .= ', ' . $b2tservice -> getTableName () . ' AS T' . $i ;
$query_4 .= ' AND (' ;
$allLinkedTags = $tag2tagservice -> getAllLinkedTags ( $this -> db -> sql_escape ( $tags [ $i ]), '>' , $user );
while ( is_array ( $allLinkedTags ) && count ( $allLinkedTags ) > 0 ) {
$query_4 .= ' T' . $i . '.tag = "' . array_pop ( $allLinkedTags ) . '"' ;
$query_4 .= ' OR' ;
}
$query_4 .= ' T' . $i . '.tag = "' . $this -> db -> sql_escape ( $tags [ $i ]) . '"' ;
$query_4 .= ') AND T' . $i . '.bId = B.bId' ;
//die($query_4);
}
// Search terms
if ( $terms ) {
// Multiple search terms okay
$aTerms = explode ( ' ' , $terms );
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$aTerms = array_map ( 'trim' , $aTerms );
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// Search terms in tags as well when none given
if ( ! count ( $tags )) {
$query_2 .= ' LEFT JOIN ' . $b2tservice -> getTableName () . ' AS T ON B.bId = T.bId' ;
$dotags = true ;
} else {
$dotags = false ;
}
$query_4 = '' ;
for ( $i = 0 ; $i < count ( $aTerms ); $i ++ ) {
$query_4 .= ' AND (B.bTitle LIKE "%' . $this -> db -> sql_escape ( $aTerms [ $i ]) . '%"' ;
$query_4 .= ' OR B.bDescription LIKE "%' . $this -> db -> sql_escape ( $aTerms [ $i ]) . '%"' ;
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$query_4 .= ' OR U.username = "' . $this -> db -> sql_escape ( $aTerms [ $i ]) . '"' ; //exact match for username
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if ( $dotags ) {
$query_4 .= ' OR T.tag = "' . $this -> db -> sql_escape ( $aTerms [ $i ]) . '"' ;
}
$query_4 .= ')' ;
}
}
// Start and end dates
if ( $startdate ) {
$query_4 .= ' AND B.bDatetime > "' . $startdate . '"' ;
}
if ( $enddate ) {
$query_4 .= ' AND B.bDatetime < "' . $enddate . '"' ;
}
// Hash
if ( $hash ) {
$query_4 .= ' AND B.bHash = "' . $hash . '"' ;
}
$query = $query_1 . $query_2 . $query_3 . $query_4 . $query_5 ;
//die($query);
if ( ! ( $dbresult = & $this -> db -> sql_query_limit ( $query , intval ( $perpage ), intval ( $start )))) {
message_die ( GENERAL_ERROR , 'Could not get bookmarks' , '' , __LINE__ , __FILE__ , $query , $this -> db );
return false ;
}
if ( SQL_LAYER == 'mysql4' ) {
$totalquery = 'SELECT FOUND_ROWS() AS total' ;
} else {
if ( $hash ) {
$totalquery = 'SELECT COUNT(*) AS total' . $query_2 . $query_3 . $query_4 ;
} else {
$totalquery = 'SELECT COUNT(DISTINCT bAddress) AS total' . $query_2 . $query_3 . $query_4 ;
}
}
if ( ! ( $totalresult = & $this -> db -> sql_query ( $totalquery )) || ( ! ( $row = & $this -> db -> sql_fetchrow ( $totalresult )))) {
message_die ( GENERAL_ERROR , 'Could not get total bookmarks' , '' , __LINE__ , __FILE__ , $totalquery , $this -> db );
return false ;
}
$total = $row [ 'total' ];
$bookmarks = array ();
while ( $row = & $this -> db -> sql_fetchrow ( $dbresult )) {
$row [ 'tags' ] = $b2tservice -> getTagsForBookmark ( intval ( $row [ 'bId' ]));
$bookmarks [] = $row ;
}
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$this -> db -> sql_freeresult ( $dbresult );
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$output = array ( 'bookmarks' => $bookmarks , 'total' => $total );
return $output ;
}
function deleteBookmark ( $bookmarkid ) {
$query = 'DELETE FROM ' . $GLOBALS [ 'tableprefix' ] . 'bookmarks WHERE bId = ' . intval ( $bookmarkid );
$this -> db -> sql_transaction ( 'begin' );
if ( ! ( $dbresult = & $this -> db -> sql_query ( $query ))) {
$this -> db -> sql_transaction ( 'rollback' );
message_die ( GENERAL_ERROR , 'Could not delete bookmarks' , '' , __LINE__ , __FILE__ , $query , $this -> db );
return false ;
}
$query = 'DELETE FROM ' . $GLOBALS [ 'tableprefix' ] . 'tags WHERE bId = ' . intval ( $bookmarkid );
$this -> db -> sql_transaction ( 'begin' );
if ( ! ( $dbresult = & $this -> db -> sql_query ( $query ))) {
$this -> db -> sql_transaction ( 'rollback' );
message_die ( GENERAL_ERROR , 'Could not delete bookmarks' , '' , __LINE__ , __FILE__ , $query , $this -> db );
return false ;
}
$this -> db -> sql_transaction ( 'commit' );
return true ;
}
function deleteBookmarksForUser ( $uId ) {
$query = 'DELETE FROM ' . $GLOBALS [ 'tableprefix' ] . 'bookmarks WHERE uId = ' . intval ( $uId );
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if ( ! ( $dbresult = & $this -> db -> sql_query ( $query ))) {
message_die ( GENERAL_ERROR , 'Could not delete bookmarks' , '' , __LINE__ , __FILE__ , $query , $this -> db );
return false ;
}
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return true ;
}
function countOthers ( $address ) {
if ( ! $address ) {
return false ;
}
$userservice = & ServiceFactory :: getServiceInstance ( 'UserService' );
$sId = $userservice -> getCurrentUserId ();
if ( $userservice -> isLoggedOn ()) {
// All public bookmarks, user's own bookmarks and any shared with user
$privacy = ' AND ((B.bStatus = 0) OR (B.uId = ' . $sId . ')' ;
$watchnames = $userservice -> getWatchNames ( $sId , true );
foreach ( $watchnames as $watchuser ) {
$privacy .= ' OR (U.username = "' . $watchuser . '" AND B.bStatus = 1)' ;
}
$privacy .= ')' ;
} else {
// Just public bookmarks
$privacy = ' AND B.bStatus = 0' ;
}
$sql = 'SELECT COUNT(*) FROM ' . $userservice -> getTableName () . ' AS U, ' . $GLOBALS [ 'tableprefix' ] . 'bookmarks AS B WHERE U.' . $userservice -> getFieldName ( 'primary' ) . ' = B.uId AND B.bHash = "' . md5 ( $address ) . '"' . $privacy ;
if ( ! ( $dbresult = & $this -> db -> sql_query ( $sql ))) {
message_die ( GENERAL_ERROR , 'Could not get vars' , '' , __LINE__ , __FILE__ , $sql , $this -> db );
}
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$output = $this -> db -> sql_fetchfield ( 0 , 0 ) - 1 ;
$this -> db -> sql_freeresult ( $dbresult );
return $output ;
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}
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function normalize ( $address ) {
// If bookmark address doesn't contain ":", add "http://" to the start as a default protocol
if ( strpos ( $address , ':' ) === false ) {
$address = 'http://' . $address ;
}
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// Delete final /
if ( substr ( $address , - 1 ) == '/' ) {
$address = substr ( $address , 0 , count ( $address ) - 2 );
}
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return $address ;
}
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function deleteAll () {
$query = 'TRUNCATE TABLE `' . $this -> getTableName () . '`' ;
$this -> db -> sql_query ( $query );
}
// Properties
function getTableName () { return $this -> tablename ; }
function setTableName ( $value ) { $this -> tablename = $value ; }
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}
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?>