Question

def handleLogin = {
   def hashPassd = DU.md5Hex(params.password)
   // Find the username
   def user = User.findByUserNameAndPassword(params.userName, hashPassd)
   if (!user) {
      flash.message = "User not found for userName: ${params.userName}"
      redirect(action:'index')
      return
   } else {
      session.user = user
      redirect(controller:'todo')
   }
}

how come the if condition requires the return statement? and the else block don’t require it?

Answer 1

In this case the return is not necessary. If the return isn’t there it will continue to after the if, which is the end of the method, and thus returns.