persist() public method

Persists a document as part of the current unit of work.
public persist ( object $document )
$document object The document to persist.
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 /**
  * Tells the DocumentManager to make an instance managed and persistent.
  *
  * The document will be entered into the database at or before transaction
  * commit or as a result of the flush operation.
  *
  * NOTE: The persist operation always considers documents that are not yet known to
  * this DocumentManager as NEW. Do not pass detached documents to the persist operation.
  *
  * @param object $document The instance to make managed and persistent.
  */
 public function persist($document)
 {
     if (!is_object($document)) {
         throw new \InvalidArgumentException(gettype($document));
     }
     $this->errorIfClosed();
     $this->unitOfWork->persist($document);
 }