| definition: |
maxTestUpdate :: (Read t, Show t, Eq a, Show a) =>
String -> (Key -> t -> Dynamic) -> (Key -> t -> en)
-> (en -> Key) -> (en -> a) -> Int -> en -> Transaction ()
maxTestUpdate ename entrypred info2entry keyf selector max obj =
getDB (getAllEntities entrypred info2entry) |>>= \es ->
let entries = filter (\e -> selector obj == selector e) es in
getEntry entrypred info2entry (keyf obj) |>>= \old ->
if (length entries < max
|| (length entries == max && selector old == selector obj))
then doneT
else errorT (TError MaxError ("max reached for attribute "
++show (selector obj)++" in entity "++ename))
|
| demand: |
no demanded arguments |
| deterministic: |
deterministic operation |
| failfree: |
<FAILING> |
| indeterministic: |
referentially transparent operation |
| infix: |
no fixity defined |
| iotype: |
{(_,_,_,_,_,_,_,_,_,_,_) |-> _}
|
| name: |
maxTestUpdate |
| precedence: |
no precedence defined |
| result-values: |
_ |
| signature: |
(Prelude.Read a, Prelude.Show a, Prelude.Eq c, Prelude.Show c) => String -> (Prelude.Int -> a -> Database.KeyDatabaseSQLite.Dynamic) -> (Prelude.Int -> a -> b) -> (b -> Prelude.Int) -> (b -> c) -> Prelude.Int -> b -> Database.KeyDatabaseSQLite.Transaction () |
| solution-complete: |
operation might suspend on free variables |
| terminating: |
possibly non-terminating |
| totally-defined: |
possibly non-reducible on same data term |