Dear all:
I am trying to validate the fields upon update.
in the update method i created a query statement that checks if the a value is
unique.
here is the update function
@IfInvalid(outcome = Outcome.REDISPLAY)
| public String update() {
| String compName = instance.getName();
| String compTel = instance.getTel();
| String compFax = instance.getFax();
| int compId = instance.getId();
|
| entityManager.refresh(instance);
|
| if (compName.equals(instance.getName())) {
| instance.setTel(compTel);
| instance.setFax(compFax);
| entityManager.flush();
| refreshFinder();
| return null;
| }
| else {
| Query query1 = entityManager.createQuery("select comp
from Companies comp where comp.name=:compName");
| query1.setParameter("compName", compName);
|
| if (query1.getResultList() != null) {
| FacesContext.getCurrentInstance().addMessage(
| null,
| new
FacesMessage(messages.get("Companies_name") + " "
| +
messages.get("AlreadyExists")));
| return null;
| }
| }
| instance=(Companies)entityManager.find(Companies.class,
compId);
| instance.setName(compName);
| instance.setTel(compTel);
| instance.setFax(compFax);
| entityManager.flush();
| refreshFinder();
| return null;
| }
If the user tries to enter a company name that already exists in the database
then an error is reported. (works fine)
but if the user tries to enter a company name that doesnot exist in the
database then an error is also reported. the problem is that in this case the
query statement returns a list but it is not supposed to do so.
any one knows how to solve that.
Best regards
ama55
View the original post :
http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3991713#3991713
Reply to the post :
http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=3991713
_______________________________________________
jboss-user mailing list
[email protected]
https://lists.jboss.org/mailman/listinfo/jboss-user
