public function save($full = false)
{
if (!$this->libraryID) {
trigger_error("Library ID must be set before saving", E_USER_ERROR);
}
Zotero_Tags::editCheck($this);
if (!$this->changed) {
Z_Core::debug("Tag {$this->id} has not changed");
return false;
}
$shardID = Zotero_Shards::getByLibraryID($this->libraryID);
Zotero_DB::beginTransaction();
try {
$tagID = $this->id ? $this->id : Zotero_ID::get('tags');
$isNew = !$this->id;
Z_Core::debug("Saving tag {$tagID}");
$key = $this->key ? $this->key : $this->generateKey();
$timestamp = Zotero_DB::getTransactionTimestamp();
$dateAdded = $this->dateAdded ? $this->dateAdded : $timestamp;
$dateModified = $this->dateModified ? $this->dateModified : $timestamp;
$fields = "name=?, `type`=?, dateAdded=?, dateModified=?,\n\t\t\t\tlibraryID=?, `key`=?, serverDateModified=?";
$params = array($this->name, $this->type ? $this->type : 0, $dateAdded, $dateModified, $this->libraryID, $key, $timestamp);
try {
if ($isNew) {
$sql = "INSERT INTO tags SET tagID=?, {$fields}";
$stmt = Zotero_DB::getStatement($sql, true, $shardID);
Zotero_DB::queryFromStatement($stmt, array_merge(array($tagID), $params));
// Remove from delete log if it's there
$sql = "DELETE FROM syncDeleteLogKeys WHERE libraryID=? AND objectType='tag' AND `key`=?";
Zotero_DB::query($sql, array($this->libraryID, $key), $shardID);
} else {
$sql = "UPDATE tags SET {$fields} WHERE tagID=?";
$stmt = Zotero_DB::getStatement($sql, true, Zotero_Shards::getByLibraryID($this->libraryID));
Zotero_DB::queryFromStatement($stmt, array_merge($params, array($tagID)));
}
} catch (Exception $e) {
// If an incoming tag is the same as an existing tag, but with a different key,
// then delete the old tag and add its linked items to the new tag
if (preg_match("/Duplicate entry .+ for key 'uniqueTags'/", $e->getMessage())) {
// GET existing tag
$existing = Zotero_Tags::getIDs($this->libraryID, $this->name);
if (!$existing) {
throw new Exception("Existing tag not found");
}
foreach ($existing as $id) {
$tag = Zotero_Tags::get($this->libraryID, $id, true);
if ($tag->__get('type') == $this->type) {
$linked = $tag->getLinkedItems(true);
Zotero_Tags::delete($this->libraryID, $tag->key);
break;
}
}
// Save again
if ($isNew) {
$sql = "INSERT INTO tags SET tagID=?, {$fields}";
$stmt = Zotero_DB::getStatement($sql, true, $shardID);
Zotero_DB::queryFromStatement($stmt, array_merge(array($tagID), $params));
// Remove from delete log if it's there
$sql = "DELETE FROM syncDeleteLogKeys WHERE libraryID=? AND objectType='tag' AND `key`=?";
Zotero_DB::query($sql, array($this->libraryID, $key), $shardID);
} else {
$sql = "UPDATE tags SET {$fields} WHERE tagID=?";
$stmt = Zotero_DB::getStatement($sql, true, Zotero_Shards::getByLibraryID($this->libraryID));
Zotero_DB::queryFromStatement($stmt, array_merge($params, array($tagID)));
}
$new = array_unique(array_merge($linked, $this->getLinkedItems(true)));
$this->setLinkedItems($new);
} else {
throw $e;
}
}
// Linked items
if ($full || !empty($this->changed['linkedItems'])) {
$removed = array();
$newids = array();
$currentIDs = $this->getLinkedItems(true);
if (!$currentIDs) {
$currentIDs = array();
}
if ($full) {
$sql = "SELECT itemID FROM itemTags WHERE tagID=?";
$stmt = Zotero_DB::getStatement($sql, true, $shardID);
$dbItemIDs = Zotero_DB::columnQueryFromStatement($stmt, $tagID);
if ($dbItemIDs) {
$removed = array_diff($dbItemIDs, $currentIDs);
$newids = array_diff($currentIDs, $dbItemIDs);
} else {
$newids = $currentIDs;
}
} else {
if ($this->previousData['linkedItems']) {
$removed = array_diff($this->previousData['linkedItems'], $currentIDs);
$newids = array_diff($currentIDs, $this->previousData['linkedItems']);
} else {
$newids = $currentIDs;
}
}
if ($removed) {
$sql = "DELETE FROM itemTags WHERE tagID=? AND itemID IN (";
$q = array_fill(0, sizeOf($removed), '?');
$sql .= implode(', ', $q) . ")";
Zotero_DB::query($sql, array_merge(array($this->id), $removed), $shardID);
}
if ($newids) {
$newids = array_values($newids);
$sql = "INSERT INTO itemTags (tagID, itemID) VALUES ";
$maxInsertGroups = 50;
Zotero_DB::bulkInsert($sql, $newids, $maxInsertGroups, $tagID, $shardID);
}
//Zotero.Notifier.trigger('add', 'collection-item', $this->id . '-' . $itemID);
}
Zotero_DB::commit();
Zotero_Tags::cachePrimaryData(array('id' => $tagID, 'libraryID' => $this->libraryID, 'key' => $key, 'name' => $this->name, 'type' => $this->type ? $this->type : 0, 'dateAdded' => $dateAdded, 'dateModified' => $dateModified));
} catch (Exception $e) {
Zotero_DB::rollback();
throw $e;
}
// If successful, set values in object
if (!$this->id) {
$this->id = $tagID;
}
if (!$this->key) {
$this->key = $key;
}
$this->init();
if ($isNew) {
Zotero_Tags::cache($this);
Zotero_Tags::cacheLibraryKeyID($this->libraryID, $key, $tagID);
}
return $this->id;
}
