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definition:
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newDBKeyEntry :: Show a => KeyPred a -> Key -> a -> Transaction ()
newDBKeyEntry keyPred key info =
getDB (existsDBKey keyPred key) |>>= \b ->
if b
then errorT . TError DuplicateKeyError $
"database already contains entry with key: " ++ show key
else modify keyPred "insert into"
("values (" ++ commaSep (infoVals keyPred info) ++ ")") |>>
getDB (Query $ selectInt keyPred "last_insert_rowid()" "") |>>= \k ->
modify keyPred "update" $
"set _rowid_ = " ++ show key ++ " where _rowid_ = " ++ show k
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demand:
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no demanded arguments
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deterministic:
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deterministic operation
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documentation:
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--- Stores a new entry in the database under a given key.
--- The transaction fails if the key already exists.
--- @param db - the database (a dynamic predicate)
--- @param key - the key of the new entry (an integer)
--- @param info - the information to be stored in the new entry
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failfree:
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<FAILING>
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indeterministic:
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referentially transparent operation
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infix:
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no fixity defined
|
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iotype:
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{(_,_,_,_) |-> _}
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name:
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newDBKeyEntry
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precedence:
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no precedence defined
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result-values:
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_
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signature:
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Prelude.Show a => (Prelude.Int -> a -> Dynamic) -> Prelude.Int -> a
-> Transaction ()
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solution-complete:
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operation might suspend on free variables
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terminating:
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possibly non-terminating
|
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totally-defined:
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possibly non-reducible on same data term
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