/**
  * Declares an association between this object and a CcPlaylist object.
  *
  * @param      CcPlaylist $v
  * @return     CcPlaylistcontents The current object (for fluent API support)
  * @throws     PropelException
  */
 public function setCcPlaylist(CcPlaylist $v = null)
 {
     // aggregate_column_relation behavior
     if (null !== $this->aCcPlaylist && $v !== $this->aCcPlaylist) {
         $this->oldCcPlaylist = $this->aCcPlaylist;
     }
     if ($v === null) {
         $this->setDbPlaylistId(NULL);
     } else {
         $this->setDbPlaylistId($v->getDbId());
     }
     $this->aCcPlaylist = $v;
     // Add binding for other direction of this n:n relationship.
     // If this object has already been added to the CcPlaylist object, it will not be re-added.
     if ($v !== null) {
         $v->addCcPlaylistcontents($this);
     }
     return $this;
 }