/**
* Stores data from current qp_PollStore instance to memory cache,
* and optionally to DB.
* @param $db null - will store only to memory cache (assumes that
* DB is already in sync with qp_PollStore, thus only
* the memory cache has to be set);
* instance of DB_MASTER - will store to DB as well;
* @param $className1, ... $classNameN - one or more PHP class names
* that will be instantiated to store their partial data from
* current qp_PollStore;
*
*/
static function store( /* $db, $className1, ... $classNameN */ ) {
$args = func_get_args();
self::$db = array_shift( $args );
foreach ( $args as $className ) {
$self = new $className();
if ( !($self instanceof self ) ) {
throw new MWException( 'className parameter has to be a name of ' . __CLASS__ . ' or it\'s ancestors in ' . __METHOD__ );
}
if ( self::$db === null ) {
## store only to memory cache, DB is assumed to be already
## in sync with self::$store
# update self from qp_PollStore properties
# (prepare for memory cache update)
$self->updateFromPollStore();
# store $this->memc_rows into memory cache
$self->setMemc();
} else {
# store both to DB and to memory cache
$self->storePolymorph();
}
}
}
/**
* Complete storage of user vote into DB. Final stage of successful poll POST.
* When current poll wasn't previousely voted yet, it also creates poll structure
* in DB
*/
function setUserVote() {
if ( $this->hasQuestions() &&
$this->last_uid !== null &&
$this->mCompletedPostData === 'complete'
) {
$this->interpretVote();
# warning: transaction should include minimal set of carefully monitored methods
$db = wfGetDB( DB_MASTER );
$db->begin();
qp_PollCache::store( $db, 'qp_QuestionCache', 'qp_CategoryCache', 'qp_ProposalCache' );
if ( $this->interpResult->hasToBeStored() ) {
$this->setAnswers( $db );
}
$db->commit();
$this->voteDone = true;
}
}
