public void savePaintingAction(IRequestCycle cycle) {
Painting painting = getPainting();
Artist artist = getArtist();
if (!assertNotNull(painting.getPaintingTitle())) {
appendHtmlToErrorMessage("You must provide a painting title.");
return;
}
DataContext ctxt = getVisitDataContext();
// painting was created earlier, but before we can
// start working with its relationships, and ultimately
// save it to DB, it must be regsitered with DataContext
ctxt.registerNewObject(painting);
// establish relationship with artist via a simple method call
// an equivalent of the line below would be "
artist.addToPaintingArray(painting);
// commit to the database
ctxt.commitChanges();
BrowseArtistsPage nextPage = (BrowseArtistsPage) cycle.getPage("BrowseArtistsPage");
cycle.activate(nextPage);
}
public void pageBeginRender(PageEvent event) {
Painting painting = new Painting();
painting.setEstimatedPrice(new BigDecimal(0));
setPainting(painting);
}