[rucksack-devel] with-transaction

[Dr. Helmut G. Enders]

Do I always need a
    (with-transaction .. wrapper,
even if I'm only reading?


(defun find-user-by-login (name)
    (rucksack-map-slot *rs* 'user 'login
        (lambda (user) (return-from find-user-by-login user))
        :equal name)
     nil)


There is no applicable method for the generic function
   #<STANDARD-GENERIC-FUNCTION RUCKSACK:TRANSACTION-ID (3)>
when called with arguments
   (NIL).
    [Condition of type SIMPLE-ERROR]


Helmut