/**
* Loads poll description from DB specified by
* ($this->mArticleId, $this->mPollId).
* Optionally updates the DB, when poll tag attributes were changed.
*/
private function loadPid() {
if ( $this->mArticleId === 0 ) {
return;
}
$db = wfGetDB( DB_MASTER );
if ( count( $row = qp_PollCache::load( $db ) ) > 0 ) {
$this->pid = $row->pid;
# some constructors don't supply all of the poll attributes,
# get the values from DB in such case
$updates_counter = 0;
if ( $this->mOrderId === null ) {
$this->mOrderId = $row->order_id;
$updates_counter++;
}
if ( $this->dependsOn === null ) {
$this->dependsOn = $row->dependance;
$updates_counter++;
}
if ( $this->interpDBkey === null ) {
$this->interpNS = $row->interpretation_namespace;
$this->interpDBkey = $row->interpretation_title;
$updates_counter++;
}
if ( $this->randomQuestionCount === null ) {
$this->randomQuestionCount = $row->random_question_count;
$updates_counter++;
}
if ( $updates_counter < 4 ) {
# some attributes might have been changed in poll header,
# update the cache
qp_PollCache::store( $db, 'qp_PollCache' );
}
}
}
