public function ensureChangedFlagsAreSet(TagHistoryModel $tagHistory)
{
global $DB;
// do we already have them?
if (!$tagHistory->isAnyChangeFlagsUnknown()) {
return;
}
// load last.
$stat = $DB->prepare("SELECT * FROM tag_history WHERE tag_id = :id AND created_at < :at " . "ORDER BY created_at DESC");
$stat->execute(array('id' => $tagHistory->getId(), 'at' => $tagHistory->getCreatedAt()->format("Y-m-d H:i:s")));
// Apply what we know
if ($stat->rowCount() == 0) {
$tagHistory->setChangedFlagsFromNothing();
} else {
while ($tagHistory->isAnyChangeFlagsUnknown() && ($lastHistoryData = $stat->fetch())) {
$lastHistory = new TagHistoryModel();
$lastHistory->setFromDataBaseRow($lastHistoryData);
$tagHistory->setChangedFlagsFromLast($lastHistory);
}
}
// Save back to DB
$sqlFields = array();
$sqlParams = array('id' => $tagHistory->getId(), 'created_at' => $tagHistory->getCreatedAt()->format("Y-m-d H:i:s"), 'is_new' => $tagHistory->getIsNew() ? 1 : 0);
if ($tagHistory->getTitleChangedKnown()) {
$sqlFields[] = " title_changed = :title_changed ";
$sqlParams['title_changed'] = $tagHistory->getTitleChanged() ? 1 : -1;
}
if ($tagHistory->getDescriptionChangedKnown()) {
$sqlFields[] = " description_changed = :description_changed ";
$sqlParams['description_changed'] = $tagHistory->getDescriptionChanged() ? 1 : -1;
}
if ($tagHistory->getIsDeletedChangedKnown()) {
$sqlFields[] = " is_deleted_changed = :is_deleted_changed ";
$sqlParams['is_deleted_changed'] = $tagHistory->getIsDeletedChanged() ? 1 : -1;
}
$statUpdate = $DB->prepare("UPDATE tag_history SET " . " is_new = :is_new, " . implode(" , ", $sqlFields) . " WHERE tag_id = :id AND created_at = :created_at");
$statUpdate->execute($sqlParams);
}
