private function load()
{
$libraryID = $this->libraryID;
$id = $this->id;
$key = $this->key;
if (!$libraryID) {
throw new Exception("Library ID not set");
}
if (!$id && !$key) {
throw new Exception("ID or key not set");
}
// Cache tag data for the entire library
if (true) {
if ($id) {
Z_Core::debug("Loading data for tag {$this->libraryID}/{$this->id}");
$row = Zotero_Tags::getPrimaryDataByID($libraryID, $id);
} else {
Z_Core::debug("Loading data for tag {$this->libraryID}/{$this->key}");
$row = Zotero_Tags::getPrimaryDataByKey($libraryID, $key);
}
$this->loaded = true;
if (!$row) {
return;
}
if ($row['libraryID'] != $libraryID) {
throw new Exception("libraryID {$row['libraryID']} != {$this->libraryID}");
}
foreach ($row as $key => $val) {
$this->{$key} = $val;
}
} else {
// Use cached check for existence if possible
if ($libraryID && $key) {
if (!Zotero_Tags::existsByLibraryAndKey($libraryID, $key)) {
$this->loaded = true;
return;
}
}
$shardID = Zotero_Shards::getByLibraryID($libraryID);
$sql = Zotero_Tags::getPrimaryDataSQL();
if ($id) {
$sql .= "tagID=?";
$stmt = Zotero_DB::getStatement($sql, false, $shardID);
$data = Zotero_DB::rowQueryFromStatement($stmt, $id);
} else {
$sql .= "libraryID=? AND `key`=?";
$stmt = Zotero_DB::getStatement($sql, false, $shardID);
$data = Zotero_DB::rowQueryFromStatement($stmt, array($libraryID, $key));
}
$this->loaded = true;
if (!$data) {
return;
}
if ($data['libraryID'] != $libraryID) {
throw new Exception("libraryID {$data['libraryID']} != {$libraryID}");
}
foreach ($data as $k => $v) {
$this->{$k} = $v;
}
}
}
