/**
* Get the character set of an attachment
*
* @return string Character set name
*/
private function getAttachmentCharset() {
if (!$this->isAttachment()) {
trigger_error("attachmentCharset can only be retrieved for attachment items", E_USER_ERROR);
}
if ($this->attachmentData['charset'] !== null) {
return $this->attachmentData['charset'];
}
if (!$this->id) {
return '';
}
$sql = "SELECT charsetID FROM itemAttachments WHERE itemID=?";
$stmt = Zotero_DB::getStatement($sql, true, Zotero_Shards::getByLibraryID($this->libraryID));
$charset = Zotero_DB::valueQueryFromStatement($stmt, $this->id);
if ($charset) {
$charset = Zotero_CharacterSets::getName($charset);
}
else {
$charset = '';
}
$this->attachmentData['charset'] = $charset;
return $charset;
}
