JSF expression language (EL) question

4
votes

I have a menu item that I want to show/hide only if the user has certain roles.

I'm using the rendered attribute for this, but I'm stuck on something. This works ...

rendered="#{loginHandler.hasStaffRole}"

... but this does not ...

rendered="#{loginHandler.hasStaffRole or loginHandler.hasInstructorRole or loginHandler.hasVolunteerRole}"

The error I get in Eclipse for the problem one is:

"cannot apply expression operators to method bindings"

Any idea how I should fix this?

2
jsfel

2 Answers

8
votes

Answering my own question. The problem was the LoginHandler.hasStaffRole() method needed to be worded LoginHandler.isHasStaffRole() in order to be recognized as a property. (In the end I changed it to .isUserHasStaffRole.)

Thanks.

0
votes

I had the same issue: rendered="#{user.canEdit or user.isRole('ROLE_1', 'ROLE_2')}"

The "solution" for my Eclipse 4.3 was to reverse the arguments: rendered="#{user.isRole('ROLE_1', 'ROLE_2') or user.canEdit}"

Adding parentheses did not cure it. Your mileage may vary.