/**
* Handle most user interactions
*
* @param custId The id of the customer. Can be null, which is why we don't bind it
* @param verb What to do, can be insert, update or delete
* @param type The type on which to act, can be Customer, Order or LineItem
* @param id The id of the object on which to act
* @param att The attribute on which to act
* @param value The value to which to set it
*/
public static void index(
String custId, String verb, String type, String id, String att, String value) {
if (verb == null || verb.trim().length() == 0) {
showPage(custId, null);
return;
}
if ("update".equals(verb)) processUpdate(type, id, att, value);
else if ("insert".equals(verb)) processInsert(custId, type, id, att, value);
else if ("delete".equals(verb)) processDelete(type, id);
// We want to know if there is a constraint violation on commit, that's why we commit here
// rather than let Play do it for us. There may be a better way of doing this, but I don't know
// Play well enough to determine that.
String errMsg = null;
try {
JPA.em().getTransaction().commit();
} catch (RollbackException ex) {
if (ex.getCause() != null
&& ex.getCause().getCause() != null
&& (ex.getCause().getCause() instanceof ConstraintException)) {
ConstraintException cex = (ConstraintException) ex.getCause().getCause();
errMsg = cex.getMessage() + " - your last change has been rolled back.";
}
}
showPage(custId, errMsg);
}
