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javascalaplayframeworkplayframework-2.0twirl

if statement in scala template play framework

hey guys am trying to send a value for user if he is logged in and in not i execute an if statement in a home page scala template 

 User loggeduser = User.find.query().where().eq("token", 
 session("connected")).findOne();
 return ok(main.render(loggeduser));

in scala home page template am trying something like this

@(user: User)
@if(user.fname==null){ i even tried @if(user.isEmpty)

and tried to keep fname outside yet the same error for a NULL POINTER EXEPTION then show some login form links

}else(user!=null){
<a class="dropdown-toggle" data-toggle="dropdown" id="signHover">@user.fname</a>

}

please if have any suggestion guide me throw the process

reference :https://www.playframework.com/documentation/2.6.x/JavaTemplates

Solution

  • Assuming User is null if there's no user, shouldn't you have 

    @(user: User)
@if(user!=null){ 
  // do stuff
} else {
  // do stuff for no user
}