private void trackPositionChanges(Tag tag) {
// tracking associated Positions
for (Position position : tag.getPositionTags()) {
Position positionDB = PositionManager.getDefault().getEntityById(position.getId());
if (!positionDB.getTags().contains(tag)) {
positionDB
.getHistory()
.add(
PositionManager.getDefault()
.getChange(positionDB, PositionManager.FIELD_TAGS, "", tag.getName()));
}
}
// tracking deassociated Positions
if (tag.getId() != null) {
Tag tagDB = getEntityById(tag.getId());
for (Position positionDB : tagDB.getPositionTags()) {
if (!tag.getPositionTags().contains(positionDB)) {
positionDB
.getHistory()
.add(
PositionManager.getDefault()
.getChange(positionDB, PositionManager.FIELD_TAGS, tag.getName(), ""));
}
}
}
}
