| definition: |
getSessionMaybeData :: (Read a, Show a) =>
SessionStore a -> FormReader (Maybe a)
getSessionMaybeData sessionData = toFormReader $ do
ensureSessionDataDir
sid <- getSessionId
SessionData sdata <- safeReadGlobalP sessionData emptySessionData
return (findInSession sid sdata)
where
findInSession si ((id, _, storedData):rest) =
if getId id == getId si
then Just storedData
else findInSession si rest
findInSession _ [] = Nothing
|
| demand: |
no demanded arguments |
| deterministic: |
deterministic operation |
| documentation: |
--- Retrieves data for the current user session stored in a session store. --- Returns `Nothing` if there is no data for the current session. |
| failfree: |
<FAILING> |
| indeterministic: |
might be indeterministic |
| infix: |
no fixity defined |
| iotype: |
{(_,_,_) |-> _}
|
| name: |
getSessionMaybeData |
| precedence: |
no precedence defined |
| result-values: |
_ |
| signature: |
(Prelude.Read a, Prelude.Show a) => Data.Global.GlobalP (SessionData a) -> HTML.Base.FormReader (Prelude.Maybe a) |
| solution-complete: |
operation might suspend on free variables |
| terminating: |
possibly non-terminating |
| totally-defined: |
possibly non-reducible on same data term |