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findOne: tell database to only return one

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Scott R. Parish 2010-01-18 19:36:10 -06:00
parent 2c6905b45f
commit 3aaee6cf84
1 changed files with 1 additions and 1 deletions
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Database/MongoDB.hs
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@ -262,7 +262,7 @@ find c col sel = query c col [] 0 0 sel []
-- | Query, but only return the first result, if any.
findOne :: Connection -> Collection -> Selector -> IO (Maybe BsonDoc)
findOne c col sel = do
cur <- find c col sel
cur <- query c col [] 0 (-1) sel []
el <- nextDoc cur
finish cur
return el