public function testExistsByLibraryAndKey()
{
$this->assertFalse(Zotero_Items::existsByLibraryAndKey(self::$config['userLibraryID'], "AAAAAAAA"));
$item = new Zotero_Item();
$item->libraryID = self::$config['userLibraryID'];
$item->itemTypeID = Zotero_ItemTypes::getID("book");
$item->save();
$key = $item->key;
$this->assertTrue(Zotero_Items::existsByLibraryAndKey(self::$config['userLibraryID'], $key));
Zotero_Items::delete(self::$config['userLibraryID'], $key);
$this->assertFalse(Zotero_Items::existsByLibraryAndKey(self::$config['userLibraryID'], $key));
}
/**
* Import an item by URL using the translation server
*
* Initial request:
*
* {
* "url": "http://..."
* }
*
* Item selection for multi-item results:
*
* {
* "url": "http://...",
* "token": "<token>"
* "items": {
* "0": "Item 1 Title",
* "3": "Item 2 Title"
* }
* }
*
* Returns an array of keys of added items (like updateMultipleFromJSON) or an object
* with a 'select' property containing an array of titles for multi-item results
*/
public static function addFromURL($json, $requestParams, $libraryID, $userID, Zotero_Permissions $permissions, $translationToken)
{
if (!$translationToken) {
throw new Exception("Translation token not provided");
}
self::validateJSONURL($json, $requestParams);
$cacheKey = 'addFromURLKeyMappings_' . md5($json->url . $translationToken);
// Replace numeric keys with URLs for selected items
if (isset($json->items) && $requestParams['v'] >= 2) {
$keyMappings = Z_Core::$MC->get($cacheKey);
$newItems = [];
foreach ($json->items as $number => $title) {
if (!isset($keyMappings[$number])) {
throw new Exception("Index '{$number}' not found for URL and token", Z_ERROR_INVALID_INPUT);
}
$url = $keyMappings[$number];
$newItems[$url] = $title;
}
$json->items = $newItems;
}
$response = Zotero_Translate::doWeb($json->url, $translationToken, isset($json->items) ? $json->items : null);
if (!$response || is_int($response)) {
return $response;
}
if (isset($response->items)) {
if ($requestParams['v'] >= 2) {
$response = $response->items;
for ($i = 0, $len = sizeOf($response); $i < $len; $i++) {
// Assign key here so that we can add notes if necessary
do {
$itemKey = Zotero_ID::getKey();
} while (Zotero_Items::existsByLibraryAndKey($libraryID, $itemKey));
$response[$i]->key = $itemKey;
// Pull out notes and stick in separate items
if (isset($response[$i]->notes)) {
foreach ($response[$i]->notes as $note) {
$newNote = (object) ["itemType" => "note", "note" => $note->note, "parentItem" => $itemKey];
$response[] = $newNote;
}
unset($response[$i]->notes);
}
// TODO: link attachments, or not possible from translation-server?
}
}
try {
self::validateMultiObjectJSON($response, $requestParams);
} catch (Exception $e) {
error_log($e);
error_log(json_encode($response));
throw new Exception("Invalid JSON from doWeb()");
}
} else {
if (isset($response->select)) {
// Replace URLs with numeric keys for found items
if ($requestParams['v'] >= 2) {
$keyMappings = [];
$newItems = new stdClass();
$number = 0;
foreach ($response->select as $url => $title) {
$keyMappings[$number] = $url;
$newItems->{$number} = $title;
$number++;
}
Z_Core::$MC->set($cacheKey, $keyMappings, 600);
$response->select = $newItems;
}
return $response;
} else {
throw new Exception("Invalid return value from doWeb()");
}
}
return self::updateMultipleFromJSON($response, $requestParams, $libraryID, $userID, $permissions, false, null);
}
private function loadPrimaryData($allowFail = false)
{
Z_Core::debug("Loading primary data for item {$this->libraryID}/{$this->key}");
if ($this->loaded['primaryData']) {
throw new Exception("Primary data already loaded for item {$this->libraryID}/{$this->key}");
}
$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");
}
// Use cached check for existence if possible
if ($libraryID && $key) {
if (!Zotero_Items::existsByLibraryAndKey($libraryID, $key)) {
$this->loaded['primaryData'] = true;
if ($allowFail) {
return false;
}
throw new Exception("Item " . ($id ? $id : "{$libraryID}/{$key}") . " not found");
}
}
$columns = array();
foreach (Zotero_Items::$primaryFields as $field) {
$colSQL = '';
if (is_null($field == 'itemID' ? $this->id : $this->{$field})) {
switch ($field) {
case 'itemID':
case 'itemTypeID':
case 'dateAdded':
case 'dateModified':
case 'libraryID':
case 'key':
case 'serverDateModified':
$colSQL = 'I.' . $field;
break;
case 'itemVersion':
$colSQL = 'I.version AS itemVersion';
break;
case 'numNotes':
$colSQL = '(SELECT COUNT(*) FROM itemNotes INo
WHERE sourceItemID=I.itemID AND INo.itemID NOT IN
(SELECT itemID FROM deletedItems)) AS numNotes';
break;
case 'numAttachments':
$colSQL = '(SELECT COUNT(*) FROM itemAttachments IA
WHERE sourceItemID=I.itemID AND IA.itemID NOT IN
(SELECT itemID FROM deletedItems)) AS numAttachments';
break;
case 'numNotes':
$colSQL = '(SELECT COUNT(*) FROM itemNotes
WHERE sourceItemID=I.itemID) AS numNotes';
break;
case 'numAttachments':
$colSQL = '(SELECT COUNT(*) FROM itemAttachments
WHERE sourceItemID=I.itemID) AS numAttachments';
break;
}
if ($colSQL) {
$columns[] = $colSQL;
}
}
}
if (!$columns) {
Z_Core::debug("No primary columns to load");
return;
}
$sql = 'SELECT ' . implode(', ', $columns) . " FROM items I WHERE ";
if ($id) {
if (!is_numeric($id)) {
trigger_error("Invalid itemID '{$id}'", E_USER_ERROR);
}
$sql .= "itemID=?";
$stmt = Zotero_DB::getStatement($sql, 'loadPrimaryData_id', Zotero_Shards::getByLibraryID($libraryID));
$row = Zotero_DB::rowQueryFromStatement($stmt, array($id));
} else {
if (!is_numeric($libraryID)) {
trigger_error("Invalid libraryID '{$libraryID}'", E_USER_ERROR);
}
if (!preg_match('/[A-Z0-9]{8}/', $key)) {
trigger_error("Invalid key '{$key}'!", E_USER_ERROR);
}
$sql .= "libraryID=? AND `key`=?";
$stmt = Zotero_DB::getStatement($sql, 'loadPrimaryData_key', Zotero_Shards::getByLibraryID($libraryID));
$row = Zotero_DB::rowQueryFromStatement($stmt, array($libraryID, $key));
}
$this->loaded['primaryData'] = true;
if (!$row) {
if ($allowFail) {
return false;
}
throw new Exception("Item " . ($id ? $id : "{$libraryID}/{$key}") . " not found");
}
$this->loadFromRow($row);
return true;
}
public function setLinkedItems($newKeys)
{
if (!$this->linkedItemsLoaded) {
$this->loadLinkedItems();
}
if (!is_array($newKeys)) {
throw new Exception('$newKeys must be an array');
}
$oldKeys = $this->getLinkedItems(true);
if (!$newKeys && !$oldKeys) {
Z_Core::debug("No linked items added", 4);
return false;
}
$addKeys = array_diff($newKeys, $oldKeys);
$removeKeys = array_diff($oldKeys, $newKeys);
// Make sure all new keys exist
foreach ($addKeys as $key) {
if (!Zotero_Items::existsByLibraryAndKey($this->libraryID, $key)) {
// Return a specific error for a wrong-library tag issue
// that I can't reproduce
throw new Exception("Linked item {$key} of tag " . "{$this->libraryID}/{$this->key} not found", Z_ERROR_TAG_LINKED_ITEM_NOT_FOUND);
}
}
if ($addKeys || $removeKeys) {
$this->prepFieldChange('linkedItems');
} else {
Z_Core::debug('Linked items not changed', 4);
return false;
}
$this->linkedItems = $newKeys;
return true;
}
