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Rework WriteResult for updateMany, deleteMany functions

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Merge branch 'update-result'

PR #77

Conflicts:
	CHANGELOG.md
	Database/MongoDB/Query.hs
This commit is contained in:
Victor Denisov 2017-05-29 19:32:20 -07:00
commit dda10d461b
4 changed files with 538 additions and 270 deletions
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3
CHANGELOG.md
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@ -7,6 +7,9 @@ This project adheres to [Package Versioning Policy](https://wiki.haskell.org/Pac
### Changed ### Changed
- Description of access function - Description of access function
- Lift MonadBaseControl restriction - Lift MonadBaseControl restriction
- Update and delete results are squashed into one WriteResult type
- Functions insertMany, updateMany, deleteMany are rewritten to properly report
various errors
## [2.2.0] - 2017-04-08 ## [2.2.0] - 2017-04-08

506
Database/MongoDB/Query.hs
View file

@ -1,6 +1,6 @@
-- | Query and update documents -- | Query and update documents
{-# LANGUAGE OverloadedStrings, RecordWildCards, NamedFieldPuns, TupleSections, FlexibleContexts, FlexibleInstances, UndecidableInstances, MultiParamTypeClasses, GeneralizedNewtypeDeriving, StandaloneDeriving, TypeSynonymInstances, TypeFamilies, CPP, DeriveDataTypeable, ScopedTypeVariables #-} {-# LANGUAGE OverloadedStrings, RecordWildCards, NamedFieldPuns, TupleSections, FlexibleContexts, FlexibleInstances, UndecidableInstances, MultiParamTypeClasses, GeneralizedNewtypeDeriving, StandaloneDeriving, TypeSynonymInstances, TypeFamilies, CPP, DeriveDataTypeable, ScopedTypeVariables, BangPatterns #-}
module Database.MongoDB.Query ( module Database.MongoDB.Query (
-- * Monad -- * Monad
@ -22,9 +22,9 @@ module Database.MongoDB.Query (
insert, insert_, insertMany, insertMany_, insertAll, insertAll_, insert, insert_, insertMany, insertMany_, insertAll, insertAll_,
-- ** Update -- ** Update
save, replace, repsert, upsert, Modifier, modify, updateMany, updateAll, save, replace, repsert, upsert, Modifier, modify, updateMany, updateAll,
UpdateResult, UpdateOption(..), WriteResult(..), UpdateOption(..), Upserted(..),
-- ** Delete -- ** Delete
delete, deleteOne, deleteMany, deleteAll, DeleteResult, DeleteOption(..), delete, deleteOne, deleteMany, deleteAll, DeleteOption(..),
-- * Read -- * Read
-- ** Query -- ** Query
Query(..), QueryOption(NoCursorTimeout, TailableCursor, AwaitData, Partial), Query(..), QueryOption(NoCursorTimeout, TailableCursor, AwaitData, Partial),
@ -43,13 +43,15 @@ module Database.MongoDB.Query (
MRResult, mapReduce, runMR, runMR', MRResult, mapReduce, runMR, runMR',
-- * Command -- * Command
Command, runCommand, runCommand1, Command, runCommand, runCommand1,
eval, retrieveServerData eval, retrieveServerData, ServerData(..)
) where ) where
import Prelude hiding (lookup) import Prelude hiding (lookup)
import Control.Exception (Exception, throwIO, throw) import Control.Exception (Exception, throwIO)
import Control.Monad (unless, replicateM, liftM, forM, forM_) import Control.Monad (unless, replicateM, liftM, liftM2)
import Data.Int (Int32, Int64) import Data.Int (Int32, Int64)
import Data.Either (lefts, rights)
import Data.List (foldl1')
import Data.Maybe (listToMaybe, catMaybes, isNothing) import Data.Maybe (listToMaybe, catMaybes, isNothing)
import Data.Word (Word32) import Data.Word (Word32)
#if !MIN_VERSION_base(4,8,0) #if !MIN_VERSION_base(4,8,0)
@ -67,15 +69,15 @@ import Control.Concurrent.MVar.Lifted (MVar, addMVarFinalizer,
readMVar) readMVar)
#endif #endif
import Control.Applicative ((<$>)) import Control.Applicative ((<$>))
import Control.Exception (SomeException, catch) import Control.Exception (catch)
import Control.Monad (when) import Control.Monad (when, void)
import Control.Monad.Error (Error(..)) import Control.Monad.Error (Error(..))
import Control.Monad.Reader (MonadReader, ReaderT, runReaderT, ask, asks, local) import Control.Monad.Reader (MonadReader, ReaderT, runReaderT, ask, asks, local)
import Control.Monad.Trans (MonadIO, liftIO) import Control.Monad.Trans (MonadIO, liftIO)
import Data.Binary.Put (runPut) import Data.Binary.Put (runPut)
import Data.Bson (Document, Field(..), Label, Val, Value(String, Doc, Bool), import Data.Bson (Document, Field(..), Label, Val, Value(String, Doc, Bool),
Javascript, at, valueAt, lookup, look, genObjectId, (=:), Javascript, at, valueAt, lookup, look, genObjectId, (=:),
(=?), (!?), Val(..)) (=?), (!?), Val(..), ObjectId, Value(..))
import Data.Bson.Binary (putDocument) import Data.Bson.Binary (putDocument)
import Data.Text (Text) import Data.Text (Text)
import qualified Data.Text as T import qualified Data.Text as T
@ -98,6 +100,7 @@ import qualified Data.ByteString.Lazy as LBS
import qualified Data.ByteString.Base16 as B16 import qualified Data.ByteString.Base16 as B16
import qualified Data.ByteString.Base64 as B64 import qualified Data.ByteString.Base64 as B64
import qualified Data.ByteString.Char8 as B import qualified Data.ByteString.Char8 as B
import qualified Data.Either as E
import qualified Crypto.Hash.MD5 as MD5 import qualified Crypto.Hash.MD5 as MD5
import qualified Crypto.Hash.SHA1 as SHA1 import qualified Crypto.Hash.SHA1 as SHA1
import qualified Crypto.MAC.HMAC as HMAC import qualified Crypto.MAC.HMAC as HMAC
@ -122,9 +125,12 @@ data Failure =
ConnectionFailure IOError -- ^ TCP connection ('Pipeline') failed. May work if you try again on the same Mongo 'Connection' which will create a new Pipe. ConnectionFailure IOError -- ^ TCP connection ('Pipeline') failed. May work if you try again on the same Mongo 'Connection' which will create a new Pipe.
| CursorNotFoundFailure CursorId -- ^ Cursor expired because it wasn't accessed for over 10 minutes, or this cursor came from a different server that the one you are currently connected to (perhaps a fail over happen between servers in a replica set) | CursorNotFoundFailure CursorId -- ^ Cursor expired because it wasn't accessed for over 10 minutes, or this cursor came from a different server that the one you are currently connected to (perhaps a fail over happen between servers in a replica set)
| QueryFailure ErrorCode String -- ^ Query failed for some reason as described in the string | QueryFailure ErrorCode String -- ^ Query failed for some reason as described in the string
| WriteFailure ErrorCode String -- ^ Error observed by getLastError after a write, error description is in string | WriteFailure Int ErrorCode String -- ^ Error observed by getLastError after a write, error description is in string, index of failed document is the first argument
| WriteConcernFailure Int String -- ^ Write concern error. It's reported only by insert, update, delete commands. Not by wire protocol.
| DocNotFound Selection -- ^ 'fetch' found no document matching selection | DocNotFound Selection -- ^ 'fetch' found no document matching selection
| AggregateFailure String -- ^ 'aggregate' returned an error | AggregateFailure String -- ^ 'aggregate' returned an error
| CompoundFailure [Failure] -- ^ When we need to aggregate several failures and report them.
| ProtocolFailure Int String -- ^ The structure of the returned documents doesn't match what we expected
deriving (Show, Eq, Typeable) deriving (Show, Eq, Typeable)
instance Exception Failure instance Exception Failure
@ -144,9 +150,32 @@ data AccessMode =
type GetLastError = Document type GetLastError = Document
-- ^ Parameters for getLastError command. For example @[\"w\" =: 2]@ tells the server to wait for the write to reach at least two servers in replica set before acknowledging. See <http://www.mongodb.org/display/DOCS/Last+Error+Commands> for more options. -- ^ Parameters for getLastError command. For example @[\"w\" =: 2]@ tells the server to wait for the write to reach at least two servers in replica set before acknowledging. See <http://www.mongodb.org/display/DOCS/Last+Error+Commands> for more options.
data UpdateResult = UpdateResult class Result a where
isFailed :: a -> Bool
data DeleteResult = DeleteResult data WriteResult = WriteResult
{ failed :: Bool
, nMatched :: Int
, nModified :: Maybe Int
, nRemoved :: Int
-- ^ Mongodb server before 2.6 doesn't allow to calculate this value.
-- This field is meaningless if we can't calculate the number of modified documents.
, upserted :: [Upserted]
, writeErrors :: [Failure]
, writeConcernErrors :: [Failure]
} deriving Show
instance Result WriteResult where
isFailed = failed
instance Result (Either a b) where
isFailed (Left _) = True
isFailed _ = False
data Upserted = Upserted
{ upsertedIndex :: Int
, upsertedId :: ObjectId
} deriving Show
master :: AccessMode master :: AccessMode
-- ^ Same as 'ConfirmWrites' [] -- ^ Same as 'ConfirmWrites' []
@ -368,12 +397,13 @@ data WriteMode =
| Confirm GetLastError -- ^ Receive an acknowledgment after every write, and raise exception if one says the write failed. This is acomplished by sending the getLastError command, with given 'GetLastError' parameters, after every write. | Confirm GetLastError -- ^ Receive an acknowledgment after every write, and raise exception if one says the write failed. This is acomplished by sending the getLastError command, with given 'GetLastError' parameters, after every write.
deriving (Show, Eq) deriving (Show, Eq)
write :: Notice -> Action IO () write :: Notice -> Action IO (Maybe Document)
-- ^ Send write to server, and if write-mode is 'Safe' then include getLastError request and raise 'WriteFailure' if it reports an error. -- ^ Send write to server, and if write-mode is 'Safe' then include getLastError request and raise 'WriteFailure' if it reports an error.
write notice = asks mongoWriteMode >>= \mode -> case mode of write notice = asks mongoWriteMode >>= \mode -> case mode of
NoConfirm -> do NoConfirm -> do
pipe <- asks mongoPipe pipe <- asks mongoPipe
liftIOE ConnectionFailure $ P.send pipe [notice] liftIOE ConnectionFailure $ P.send pipe [notice]
return Nothing
Confirm params -> do Confirm params -> do
let q = query (("getlasterror" =: (1 :: Int)) : params) "$cmd" let q = query (("getlasterror" =: (1 :: Int)) : params) "$cmd"
pipe <- asks mongoPipe pipe <- asks mongoPipe
@ -381,22 +411,29 @@ write notice = asks mongoWriteMode >>= \mode -> case mode of
r <- queryRequest False q {limit = 1} r <- queryRequest False q {limit = 1}
rr <- liftIO $ request pipe [notice] r rr <- liftIO $ request pipe [notice] r
fulfill rr fulfill rr
case lookup "err" doc of return $ Just doc
Nothing -> return ()
Just err -> liftIO $ throwIO $ WriteFailure (maybe 0 id $ lookup "code" doc) err
-- ** Insert -- ** Insert
insert :: (MonadIO m) => Collection -> Document -> Action m Value insert :: (MonadIO m) => Collection -> Document -> Action m Value
-- ^ Insert document into collection and return its \"_id\" value, which is created automatically if not supplied -- ^ Insert document into collection and return its \"_id\" value, which is created automatically if not supplied
insert col doc = head `liftM` insertBlock [] col [doc] insert col doc = do
doc' <- liftIO $ assignId doc
res <- insertBlock [] col (0, [doc'])
case res of
Left failure -> liftIO $ throwIO failure
Right r -> return $ head r
insert_ :: (MonadIO m) => Collection -> Document -> Action m () insert_ :: (MonadIO m) => Collection -> Document -> Action m ()
-- ^ Same as 'insert' except don't return _id -- ^ Same as 'insert' except don't return _id
insert_ col doc = insert col doc >> return () insert_ col doc = insert col doc >> return ()
insertMany :: (MonadIO m) => Collection -> [Document] -> Action m [Value] insertMany :: (MonadIO m) => Collection -> [Document] -> Action m [Value]
-- ^ Insert documents into collection and return their \"_id\" values, which are created automatically if not supplied. If a document fails to be inserted (eg. due to duplicate key) then remaining docs are aborted, and LastError is set. -- ^ Insert documents into collection and return their \"_id\" values,
-- which are created automatically if not supplied.
-- If a document fails to be inserted (eg. due to duplicate key)
-- then remaining docs are aborted, and LastError is set.
-- An exception will be throw if any error occurs.
insertMany = insert' [] insertMany = insert' []
insertMany_ :: (MonadIO m) => Collection -> [Document] -> Action m () insertMany_ :: (MonadIO m) => Collection -> [Document] -> Action m ()
@ -404,7 +441,10 @@ insertMany_ :: (MonadIO m) => Collection -> [Document] -> Action m ()
insertMany_ col docs = insertMany col docs >> return () insertMany_ col docs = insertMany col docs >> return ()
insertAll :: (MonadIO m) => Collection -> [Document] -> Action m [Value] insertAll :: (MonadIO m) => Collection -> [Document] -> Action m [Value]
-- ^ Insert documents into collection and return their \"_id\" values, which are created automatically if not supplied. If a document fails to be inserted (eg. due to duplicate key) then remaining docs are still inserted. LastError is set if any doc fails, not just last one. -- ^ Insert documents into collection and return their \"_id\" values,
-- which are created automatically if not supplied. If a document fails
-- to be inserted (eg. due to duplicate key) then remaining docs
-- are still inserted.
insertAll = insert' [KeepGoing] insertAll = insert' [KeepGoing]
insertAll_ :: (MonadIO m) => Collection -> [Document] -> Action m () insertAll_ :: (MonadIO m) => Collection -> [Document] -> Action m ()
@ -419,75 +459,107 @@ insertCommandDocument opts col docs writeConcern =
, "writeConcern" =: writeConcern , "writeConcern" =: writeConcern
] ]
takeRightsUpToLeft :: [Either a b] -> [b]
takeRightsUpToLeft l = E.rights $ takeWhile E.isRight l
insert' :: (MonadIO m) insert' :: (MonadIO m)
=> [InsertOption] -> Collection -> [Document] -> Action m [Value] => [InsertOption] -> Collection -> [Document] -> Action m [Value]
-- ^ Insert documents into collection and return their \"_id\" values, which are created automatically if not supplied -- ^ Insert documents into collection and return their \"_id\" values, which are created automatically if not supplied
insert' opts col docs = do insert' opts col docs = do
p <- asks mongoPipe p <- asks mongoPipe
let sd = P.serverData p let sd = P.serverData p
docs' <- liftIO $ mapM assignId docs
mode <- asks mongoWriteMode mode <- asks mongoWriteMode
let writeConcern = case mode of let writeConcern = case mode of
NoConfirm -> ["w" =: (0 :: Int)] NoConfirm -> ["w" =: (0 :: Int)]
Confirm params -> params Confirm params -> params
let docSize = sizeOfDocument $ insertCommandDocument opts col [] writeConcern let docSize = sizeOfDocument $ insertCommandDocument opts col [] writeConcern
chunks <- forM (splitAtLimit let ordered = (not (KeepGoing `elem` opts))
(not (KeepGoing `elem` opts)) let preChunks = splitAtLimit
(maxBsonObjectSize sd - docSize) (maxBsonObjectSize sd - docSize)
-- size of auxiliary part of insert -- size of auxiliary part of insert
-- document should be subtracted from -- document should be subtracted from
-- the overall size -- the overall size
(maxWriteBatchSize sd) (maxWriteBatchSize sd)
docs) docs'
(insertBlock opts col) let chunks =
return $ concat chunks if ordered
then takeRightsUpToLeft preChunks
else rights preChunks
let lens = map length chunks
let lSums = 0 : (zipWith (+) lSums lens)
chunkResults <- interruptibleFor ordered (zip lSums chunks) $ insertBlock opts col
let lchunks = lefts preChunks
when (not $ null lchunks) $ do
liftIO $ throwIO $ head lchunks
let lresults = lefts chunkResults
when (not $ null lresults) $ liftIO $ throwIO $ head lresults
return $ concat $ rights chunkResults
insertBlock :: (MonadIO m) insertBlock :: (MonadIO m)
=> [InsertOption] -> Collection -> [Document] -> Action m [Value] => [InsertOption] -> Collection -> (Int, [Document]) -> Action m (Either Failure [Value])
-- ^ This will fail if the list of documents is bigger than restrictions -- ^ This will fail if the list of documents is bigger than restrictions
insertBlock _ _ [] = return [] insertBlock _ _ (_, []) = return $ Right []
insertBlock opts col docs = do insertBlock opts col (prevCount, docs) = do
db <- thisDatabase db <- thisDatabase
docs' <- liftIO $ mapM assignId docs
p <- asks mongoPipe p <- asks mongoPipe
let sd = P.serverData p let sd = P.serverData p
if (maxWireVersion sd < 2) if (maxWireVersion sd < 2)
then do then do
liftDB $ write (Insert (db <.> col) opts docs') res <- liftDB $ write (Insert (db <.> col) opts docs)
return $ map (valueAt "_id") docs' let errorMessage = do
jRes <- res
em <- lookup "err" jRes
return $ WriteFailure prevCount (maybe 0 id $ lookup "code" jRes) em
-- In older versions of ^^ the protocol we can't really say which document failed.
-- So we just report the accumulated number of documents in the previous blocks.
case errorMessage of
Just failure -> return $ Left failure
Nothing -> return $ Right $ map (valueAt "_id") docs
else do else do
mode <- asks mongoWriteMode mode <- asks mongoWriteMode
let writeConcern = case mode of let writeConcern = case mode of
NoConfirm -> ["w" =: (0 :: Int)] NoConfirm -> ["w" =: (0 :: Int)]
Confirm params -> params Confirm params -> params
doc <- runCommand $ insertCommandDocument opts col docs' writeConcern doc <- runCommand $ insertCommandDocument opts col docs writeConcern
case (look "writeErrors" doc, look "writeConcernError" doc) of case (look "writeErrors" doc, look "writeConcernError" doc) of
(Nothing, Nothing) -> return $ map (valueAt "_id") docs' (Nothing, Nothing) -> return $ Right $ map (valueAt "_id") docs
(Just err, Nothing) -> do (Just (Array errs), Nothing) -> do
liftIO $ throwIO $ WriteFailure let writeErrors = map (anyToWriteError prevCount) $ errs
(maybe 0 id $ lookup "ok" doc) let errorsWithFailureIndex = map (addFailureIndex prevCount) writeErrors
(show err) return $ Left $ CompoundFailure errorsWithFailureIndex
(Nothing, Just err) -> do (Nothing, Just err) -> do
liftIO $ throwIO $ WriteFailure return $ Left $ WriteFailure
prevCount
(maybe 0 id $ lookup "ok" doc) (maybe 0 id $ lookup "ok" doc)
(show err) (show err)
(Just err, Just writeConcernErr) -> do (Just (Array errs), Just writeConcernErr) -> do
liftIO $ throwIO $ WriteFailure let writeErrors = map (anyToWriteError prevCount) $ errs
let errorsWithFailureIndex = map (addFailureIndex prevCount) writeErrors
return $ Left $ CompoundFailure $ (WriteFailure
prevCount
(maybe 0 id $ lookup "ok" doc) (maybe 0 id $ lookup "ok" doc)
(show err ++ show writeConcernErr) (show writeConcernErr)) : errorsWithFailureIndex
(Just unknownValue, Nothing) -> do
return $ Left $ ProtocolFailure prevCount $ "Expected array of errors. Received: " ++ show unknownValue
(Just unknownValue, Just writeConcernErr) -> do
return $ Left $ CompoundFailure $ [ ProtocolFailure prevCount $ "Expected array of errors. Received: " ++ show unknownValue
, WriteFailure prevCount (maybe 0 id $ lookup "ok" doc) $ show writeConcernErr]
splitAtLimit :: Bool -> Int -> Int -> [Document] -> [[Document]] splitAtLimit :: Int -> Int -> [Document] -> [Either Failure [Document]]
splitAtLimit ordered maxSize maxCount list = chop (go 0 0 []) list splitAtLimit maxSize maxCount list = chop (go 0 0 []) list
where where
go :: Int -> Int -> [Document] -> [Document] -> ([Document], [Document]) go :: Int -> Int -> [Document] -> [Document] -> ((Either Failure [Document]), [Document])
go _ _ res [] = (reverse res, []) go _ _ res [] = (Right $ reverse res, [])
go curSize curCount [] (x:xs) | go curSize curCount [] (x:xs) |
((curSize + (sizeOfDocument x) + 2 + curCount) > maxSize) = ((curSize + (sizeOfDocument x) + 2 + curCount) > maxSize) =
if (not ordered) (Left $ WriteFailure 0 0 "One document is too big for the message", xs)
then
go curSize curCount [] xs -- Skip this document and insert the other documents.
else
throw $ WriteFailure 0 "One document is too big for the message"
go curSize curCount res (x:xs) = go curSize curCount res (x:xs) =
if ( ((curSize + (sizeOfDocument x) + 2 + curCount) > maxSize) if ( ((curSize + (sizeOfDocument x) + 2 + curCount) > maxSize)
-- we have ^ 2 brackets and curCount commas in -- we have ^ 2 brackets and curCount commas in
@ -495,7 +567,7 @@ splitAtLimit ordered maxSize maxCount list = chop (go 0 0 []) list
-- account -- account
|| ((curCount + 1) > maxCount)) || ((curCount + 1) > maxCount))
then then
(reverse res, x:xs) (Right $ reverse res, x:xs)
else else
go (curSize + (sizeOfDocument x)) (curCount + 1) (x:res) xs go (curSize + (sizeOfDocument x)) (curCount + 1) (x:res) xs
@ -549,8 +621,9 @@ update :: (MonadIO m)
=> [UpdateOption] -> Selection -> Document -> Action m () => [UpdateOption] -> Selection -> Document -> Action m ()
-- ^ Update first document in selection using updater document, unless 'MultiUpdate' option is supplied then update all documents in selection. If 'Upsert' option is supplied then treat updater as document and insert it if selection is empty. -- ^ Update first document in selection using updater document, unless 'MultiUpdate' option is supplied then update all documents in selection. If 'Upsert' option is supplied then treat updater as document and insert it if selection is empty.
update opts (Select sel col) up = do update opts (Select sel col) up = do
_ <- update' True col [(sel, up, opts)] db <- thisDatabase
return () ctx <- ask
liftIO $ runReaderT (void $ write (Update (db <.> col) opts sel up)) ctx
updateCommandDocument :: Collection -> Bool -> [Document] -> Document -> Document updateCommandDocument :: Collection -> Bool -> [Document] -> Document -> Document
updateCommandDocument col ordered updates writeConcern = updateCommandDocument col ordered updates writeConcern =
@ -562,31 +635,36 @@ updateCommandDocument col ordered updates writeConcern =
{-| Bulk update operation. If one update fails it will not update the remaining {-| Bulk update operation. If one update fails it will not update the remaining
- documents. Current returned value is only a place holder. With mongodb server - documents. Current returned value is only a place holder. With mongodb server
- before 2.6 it will send update requests one by one. After 2.6 it will use - before 2.6 it will send update requests one by one. In order to receive
- bulk update feature in mongodb. - error messages in versions under 2.6 you need to user confirmed writes.
- Otherwise even if the errors had place the list of errors will be empty and
- the result will be success. After 2.6 it will use bulk update feature in
- mongodb.
-} -}
updateMany :: (MonadIO m) updateMany :: (MonadIO m)
=> Collection => Collection
-> [(Selector, Document, [UpdateOption])] -> [(Selector, Document, [UpdateOption])]
-> Action m UpdateResult -> Action m WriteResult
updateMany = update' True updateMany = update' True
{-| Bulk update operation. If one update fails it will proceed with the {-| Bulk update operation. If one update fails it will proceed with the
- remaining documents. Current returned value is only a place holder. With - remaining documents. With mongodb server before 2.6 it will send update
- mongodb server before 2.6 it will send update requests one by one. After 2.6 - requests one by one. In order to receive error messages in versions under
- it will use bulk update feature in mongodb. - 2.6 you need to use confirmed writes. Otherwise even if the errors had
- place the list of errors will be empty and the result will be success.
- After 2.6 it will use bulk update feature in mongodb.
-} -}
updateAll :: (MonadIO m) updateAll :: (MonadIO m)
=> Collection => Collection
-> [(Selector, Document, [UpdateOption])] -> [(Selector, Document, [UpdateOption])]
-> Action m UpdateResult -> Action m WriteResult
updateAll = update' False updateAll = update' False
update' :: (MonadIO m) update' :: (MonadIO m)
=> Bool => Bool
-> Collection -> Collection
-> [(Selector, Document, [UpdateOption])] -> [(Selector, Document, [UpdateOption])]
-> Action m UpdateResult -> Action m WriteResult
update' ordered col updateDocs = do update' ordered col updateDocs = do
p <- asks mongoPipe p <- asks mongoPipe
let sd = P.serverData p let sd = P.serverData p
@ -597,65 +675,159 @@ update' ordered col updateDocs = do
updateDocs updateDocs
mode <- asks mongoWriteMode mode <- asks mongoWriteMode
let writeConcern = case mode of ctx <- ask
NoConfirm -> ["w" =: (0 :: Int)] liftIO $ do
Confirm params -> params let writeConcern = case mode of
let docSize = sizeOfDocument $ updateCommandDocument col ordered [] writeConcern NoConfirm -> ["w" =: (0 :: Int)]
let chunks = splitAtLimit Confirm params -> params
ordered let docSize = sizeOfDocument $ updateCommandDocument
(maxBsonObjectSize sd - docSize) col
-- size of auxiliary part of update ordered
-- document should be subtracted from []
-- the overall size writeConcern
(maxWriteBatchSize sd) let preChunks = splitAtLimit
updates (maxBsonObjectSize sd - docSize)
forM_ chunks (updateBlock ordered col) -- size of auxiliary part of update
return UpdateResult -- document should be subtracted from
-- the overall size
(maxWriteBatchSize sd)
updates
let chunks =
if ordered
then takeRightsUpToLeft preChunks
else rights preChunks
let lens = map length chunks
let lSums = 0 : (zipWith (+) lSums lens)
blocks <- interruptibleFor ordered (zip lSums chunks) $ \b -> do
ur <- runReaderT (updateBlock ordered col b) ctx
return ur
`catch` \(e :: Failure) -> do
return $ WriteResult True 0 Nothing 0 [] [e] []
let failedTotal = or $ map failed blocks
let updatedTotal = sum $ map nMatched blocks
let modifiedTotal =
if all isNothing $ map nModified blocks
then Nothing
else Just $ sum $ catMaybes $ map nModified blocks
let totalWriteErrors = concat $ map writeErrors blocks
let totalWriteConcernErrors = concat $ map writeConcernErrors blocks
let upsertedTotal = concat $ map upserted blocks
return $ WriteResult
failedTotal
updatedTotal
modifiedTotal
0 -- nRemoved
upsertedTotal
totalWriteErrors
totalWriteConcernErrors
`catch` \(e :: Failure) -> return $ WriteResult True 0 Nothing 0 [] [e] []
updateBlock :: (MonadIO m) updateBlock :: (MonadIO m)
=> Bool -> Collection -> [Document] -> Action m () => Bool -> Collection -> (Int, [Document]) -> Action m WriteResult
updateBlock ordered col docs = do updateBlock ordered col (prevCount, docs) = do
p <- asks mongoPipe p <- asks mongoPipe
let sd = P.serverData p let sd = P.serverData p
if (maxWireVersion sd < 2) if (maxWireVersion sd < 2)
then do then liftIO $ ioError $ userError "updateMany doesn't support mongodb older than 2.6"
db <- thisDatabase
ctx <- ask
errors <-
liftIO $ forM docs $ \updateDoc -> do
let doc = (at "u" updateDoc) :: Document
let sel = (at "q" updateDoc) :: Document
let upsrt = if at "upsert" updateDoc then [Upsert] else []
let multi = if at "multi" updateDoc then [MultiUpdate] else []
runReaderT (write (Update (db <.> col) (upsrt ++ multi) sel doc)) ctx
return Nothing
`catch` \(e :: SomeException) -> do
when ordered $ liftIO $ throwIO e
return $ Just e
let onlyErrors = catMaybes errors
if not $ null onlyErrors
then liftIO $ throwIO $ WriteFailure 0 (show onlyErrors)
else return ()
else do else do
mode <- asks mongoWriteMode mode <- asks mongoWriteMode
let writeConcern = case mode of let writeConcern = case mode of
NoConfirm -> ["w" =: (0 :: Int)] NoConfirm -> ["w" =: (0 :: Int)]
Confirm params -> params Confirm params -> params
doc <- runCommand $ updateCommandDocument col ordered docs writeConcern doc <- runCommand $ updateCommandDocument col ordered docs writeConcern
case (look "writeErrors" doc, look "writeConcernError" doc) of
(Nothing, Nothing) -> return () let n = fromMaybe 0 $ doc !? "n"
(Just err, Nothing) -> do let writeErrorsResults =
liftIO $ throwIO $ WriteFailure case look "writeErrors" doc of
(maybe 0 id $ lookup "ok" doc) Nothing -> WriteResult False 0 (Just 0) 0 [] [] []
(show err) Just (Array err) -> WriteResult True 0 (Just 0) 0 [] (map (anyToWriteError prevCount) err) []
(Nothing, Just err) -> do Just unknownErr -> WriteResult
liftIO $ throwIO $ WriteFailure True
(maybe 0 id $ lookup "ok" doc) 0
(show err) (Just 0)
(Just err, Just writeConcernErr) -> do 0
liftIO $ throwIO $ WriteFailure []
(maybe 0 id $ lookup "ok" doc) [ ProtocolFailure
(show err ++ show writeConcernErr) prevCount
$ "Expected array of error docs, but received: "
++ (show unknownErr)]
[]
let writeConcernResults =
case look "writeConcernError" doc of
Nothing -> WriteResult False 0 (Just 0) 0 [] [] []
Just (Doc err) -> WriteResult
True
0
(Just 0)
0
[]
[]
[ WriteConcernFailure
(fromMaybe (-1) $ err !? "code")
(fromMaybe "" $ err !? "errmsg")
]
Just unknownErr -> WriteResult
True
0
(Just 0)
0
[]
[]
[ ProtocolFailure
prevCount
$ "Expected doc in writeConcernError, but received: "
++ (show unknownErr)]
let upsertedList = map docToUpserted $ fromMaybe [] (doc !? "upserted")
liftIO $ putStrLn $ show doc
let successResults = WriteResult False n (doc !? "nModified") 0 upsertedList [] []
return $ foldl1' mergeWriteResults [writeErrorsResults, writeConcernResults, successResults]
interruptibleFor :: (Monad m, Result b) => Bool -> [a] -> (a -> m b) -> m [b]
interruptibleFor ordered = go []
where
go !res [] _ = return $ reverse res
go !res (x:xs) f = do
y <- f x
if isFailed y && ordered
then return $ reverse (y:res)
else go (y:res) xs f
mergeWriteResults :: WriteResult -> WriteResult -> WriteResult
mergeWriteResults
(WriteResult failed1 nMatched1 nModified1 nDeleted1 upserted1 writeErrors1 writeConcernErrors1)
(WriteResult failed2 nMatched2 nModified2 nDeleted2 upserted2 writeErrors2 writeConcernErrors2) =
(WriteResult
(failed1 || failed2)
(nMatched1 + nMatched2)
((liftM2 (+)) nModified1 nModified2)
(nDeleted1 + nDeleted2)
-- This function is used in foldl1' function. The first argument is the accumulator.
-- The list in the accumulator is usually longer than the subsequent value which goes in the second argument.
-- So, changing the order of list concatenation allows us to keep linear complexity of the
-- whole list accumulation process.
(upserted2 ++ upserted1)
(writeErrors2 ++ writeErrors1)
(writeConcernErrors2 ++ writeConcernErrors1)
)
docToUpserted :: Document -> Upserted
docToUpserted doc = Upserted ind uid
where
ind = at "index" doc
uid = at "_id" doc
docToWriteError :: Document -> Failure
docToWriteError doc = WriteFailure ind code msg
where
ind = at "index" doc
code = at "code" doc
msg = at "errmsg" doc
-- ** Delete -- ** Delete
@ -672,8 +844,9 @@ deleteOne = deleteHelper [SingleRemove]
deleteHelper :: (MonadIO m) deleteHelper :: (MonadIO m)
=> [DeleteOption] -> Selection -> Action m () => [DeleteOption] -> Selection -> Action m ()
deleteHelper opts (Select sel col) = do deleteHelper opts (Select sel col) = do
_ <- delete' True col [(sel, opts)] db <- thisDatabase
return () ctx <- ask
liftIO $ runReaderT (void $ write (Delete (db <.> col) opts sel)) ctx
{-| Bulk delete operation. If one delete fails it will not delete the remaining {-| Bulk delete operation. If one delete fails it will not delete the remaining
- documents. Current returned value is only a place holder. With mongodb server - documents. Current returned value is only a place holder. With mongodb server
@ -683,7 +856,7 @@ deleteHelper opts (Select sel col) = do
deleteMany :: (MonadIO m) deleteMany :: (MonadIO m)
=> Collection => Collection
-> [(Selector, [DeleteOption])] -> [(Selector, [DeleteOption])]
-> Action m DeleteResult -> Action m WriteResult
deleteMany = delete' True deleteMany = delete' True
{-| Bulk delete operation. If one delete fails it will proceed with the {-| Bulk delete operation. If one delete fails it will proceed with the
@ -694,7 +867,7 @@ deleteMany = delete' True
deleteAll :: (MonadIO m) deleteAll :: (MonadIO m)
=> Collection => Collection
-> [(Selector, [DeleteOption])] -> [(Selector, [DeleteOption])]
-> Action m DeleteResult -> Action m WriteResult
deleteAll = delete' False deleteAll = delete' False
deleteCommandDocument :: Collection -> Bool -> [Document] -> Document -> Document deleteCommandDocument :: Collection -> Bool -> [Document] -> Document -> Document
@ -709,7 +882,7 @@ delete' :: (MonadIO m)
=> Bool => Bool
-> Collection -> Collection
-> [(Selector, [DeleteOption])] -> [(Selector, [DeleteOption])]
-> Action m DeleteResult -> Action m WriteResult
delete' ordered col deleteDocs = do delete' ordered col deleteDocs = do
p <- asks mongoPipe p <- asks mongoPipe
let sd = P.serverData p let sd = P.serverData p
@ -725,59 +898,94 @@ delete' ordered col deleteDocs = do
NoConfirm -> ["w" =: (0 :: Int)] NoConfirm -> ["w" =: (0 :: Int)]
Confirm params -> params Confirm params -> params
let docSize = sizeOfDocument $ deleteCommandDocument col ordered [] writeConcern let docSize = sizeOfDocument $ deleteCommandDocument col ordered [] writeConcern
let chunks = splitAtLimit let preChunks = splitAtLimit
ordered
(maxBsonObjectSize sd - docSize) (maxBsonObjectSize sd - docSize)
-- size of auxiliary part of delete -- size of auxiliary part of delete
-- document should be subtracted from -- document should be subtracted from
-- the overall size -- the overall size
(maxWriteBatchSize sd) (maxWriteBatchSize sd)
deletes deletes
forM_ chunks (deleteBlock ordered col) let chunks =
return DeleteResult if ordered
then takeRightsUpToLeft preChunks
else rights preChunks
ctx <- ask
let lens = map length chunks
let lSums = 0 : (zipWith (+) lSums lens)
blockResult <- liftIO $ interruptibleFor ordered (zip lSums chunks) $ \b -> do
dr <- runReaderT (deleteBlock ordered col b) ctx
return dr
`catch` \(e :: Failure) -> do
return $ WriteResult True 0 Nothing 0 [] [e] []
return $ foldl1' mergeWriteResults blockResult
addFailureIndex :: Int -> Failure -> Failure
addFailureIndex i (WriteFailure ind code s) = WriteFailure (ind + i) code s
addFailureIndex _ f = f
deleteBlock :: (MonadIO m) deleteBlock :: (MonadIO m)
=> Bool -> Collection -> [Document] -> Action m () => Bool -> Collection -> (Int, [Document]) -> Action m WriteResult
deleteBlock ordered col docs = do deleteBlock ordered col (prevCount, docs) = do
p <- asks mongoPipe p <- asks mongoPipe
let sd = P.serverData p let sd = P.serverData p
if (maxWireVersion sd < 2) if (maxWireVersion sd < 2)
then do then liftIO $ ioError $ userError "deleteMany doesn't support mongodb older than 2.6"
db <- thisDatabase
ctx <- ask
errors <-
liftIO $ forM docs $ \deleteDoc -> do
let sel = (at "q" deleteDoc) :: Document
let opts = if at "limit" deleteDoc == (1 :: Int) then [SingleRemove] else []
runReaderT (write (Delete (db <.> col) opts sel)) ctx
return Nothing
`catch` \(e :: SomeException) -> do
when ordered $ liftIO $ throwIO e
return $ Just e
let onlyErrors = catMaybes errors
if not $ null onlyErrors
then liftIO $ throwIO $ WriteFailure 0 (show onlyErrors)
else return ()
else do else do
mode <- asks mongoWriteMode mode <- asks mongoWriteMode
let writeConcern = case mode of let writeConcern = case mode of
NoConfirm -> ["w" =: (0 :: Int)] NoConfirm -> ["w" =: (0 :: Int)]
Confirm params -> params Confirm params -> params
doc <- runCommand $ deleteCommandDocument col ordered docs writeConcern doc <- runCommand $ deleteCommandDocument col ordered docs writeConcern
case (look "writeErrors" doc, look "writeConcernError" doc) of let n = fromMaybe 0 $ doc !? "n"
(Nothing, Nothing) -> return () liftIO $ putStrLn $ "result of delete block: " ++ (show n)
(Just err, Nothing) -> do
liftIO $ throwIO $ WriteFailure let successResults = WriteResult False 0 Nothing n [] [] []
(maybe 0 id $ lookup "ok" doc) let writeErrorsResults =
(show err) case look "writeErrors" doc of
(Nothing, Just err) -> do Nothing -> WriteResult False 0 Nothing 0 [] [] []
liftIO $ throwIO $ WriteFailure Just (Array err) -> WriteResult True 0 Nothing 0 [] (map (anyToWriteError prevCount) err) []
(maybe 0 id $ lookup "ok" doc) Just unknownErr -> WriteResult
(show err) True
(Just err, Just writeConcernErr) -> do 0
liftIO $ throwIO $ WriteFailure Nothing
(maybe 0 id $ lookup "ok" doc) 0
(show err ++ show writeConcernErr) []
[ ProtocolFailure
prevCount
$ "Expected array of error docs, but received: "
++ (show unknownErr)]
[]
let writeConcernResults =
case look "writeConcernError" doc of
Nothing -> WriteResult False 0 Nothing 0 [] [] []
Just (Doc err) -> WriteResult
True
0
Nothing
0
[]
[]
[ WriteConcernFailure
(fromMaybe (-1) $ err !? "code")
(fromMaybe "" $ err !? "errmsg")
]
Just unknownErr -> WriteResult
True
0
Nothing
0
[]
[]
[ ProtocolFailure
prevCount
$ "Expected doc in writeConcernError, but received: "
++ (show unknownErr)]
return $ foldl1' mergeWriteResults [successResults, writeErrorsResults, writeConcernResults]
anyToWriteError :: Int -> Value -> Failure
anyToWriteError _ (Doc d) = docToWriteError d
anyToWriteError ind _ = ProtocolFailure ind "Unknown bson value"
-- * Read -- * Read

0
Setup.lhs Executable file → Normal file
View file

299
test/QuerySpec.hs
View file

@ -5,7 +5,7 @@ module QuerySpec (spec) where
import Data.String (IsString(..)) import Data.String (IsString(..))
import TestImport import TestImport
import Control.Exception import Control.Exception
import Control.Monad (forM_) import Control.Monad (forM_, when)
import System.Environment (getEnv) import System.Environment (getEnv)
import System.IO.Error (catchIOError) import System.IO.Error (catchIOError)
import qualified Data.List as L import qualified Data.List as L
@ -23,6 +23,11 @@ db action = do
close pipe close pipe
return result return result
getWireVersion :: IO Int
getWireVersion = db $ do
sd <- retrieveServerData
return $ maxWireVersion sd
withCleanDatabase :: ActionWith () -> IO () withCleanDatabase :: ActionWith () -> IO ()
withCleanDatabase action = dropDB >> action () >> dropDB >> return () withCleanDatabase action = dropDB >> action () >> dropDB >> return ()
where where
@ -110,8 +115,8 @@ spec = around withCleanDatabase $ do
describe "insertAll" $ do describe "insertAll" $ do
it "inserts documents to the collection and returns their _ids" $ do it "inserts documents to the collection and returns their _ids" $ do
(_id1:_id2:_) <- db $ insertAll "team" [ ["name" =: "Yankees", "league" =: "American"] (_id1:_id2:_) <- db $ insertAll "team" [ ["name" =: "Yankees", "league" =: "American"]
, ["name" =: "Dodgers", "league" =: "American"] , ["name" =: "Dodgers", "league" =: "American"]
] ]
result <- db $ rest =<< find (select [] "team") result <- db $ rest =<< find (select [] "team")
result `shouldBe` [["_id" =: _id1, "name" =: "Yankees", "league" =: "American"] result `shouldBe` [["_id" =: _id1, "name" =: "Yankees", "league" =: "American"]
,["_id" =: _id2, "name" =: "Dodgers", "league" =: "American"] ,["_id" =: _id2, "name" =: "Dodgers", "league" =: "American"]
@ -171,7 +176,7 @@ spec = around withCleanDatabase $ do
liftIO $ (length returnedDocs) `shouldBe` 1000 liftIO $ (length returnedDocs) `shouldBe` 1000
it "skips one too big document" $ do it "skips one too big document" $ do
db $ insertAll_ "hugeDocCollection" [hugeDocument] (db $ insertAll_ "hugeDocCollection" [hugeDocument]) `shouldThrow` anyException
db $ do db $ do
cur <- find $ (select [] "hugeDocCollection") {limit = 100000, batchSize = 100000} cur <- find $ (select [] "hugeDocCollection") {limit = 100000, batchSize = 100000}
returnedDocs <- rest cur returnedDocs <- rest cur
@ -192,107 +197,146 @@ spec = around withCleanDatabase $ do
describe "updateMany" $ do describe "updateMany" $ do
it "updates value" $ do it "updates value" $ do
_id <- db $ insert "team" ["name" =: "Yankees", "league" =: "American"] wireVersion <- getWireVersion
result <- db $ rest =<< find (select [] "team") when (wireVersion > 1) $ do
result `shouldBe` [["_id" =: _id, "name" =: "Yankees", "league" =: "American"]] _id <- db $ insert "team" ["name" =: "Yankees", "league" =: "American"]
_ <- db $ updateMany "team" [([ "_id" =: _id] result <- db $ rest =<< find (select [] "team")
, ["$set" =: ["league" =: "European"]] result `shouldBe` [["_id" =: _id, "name" =: "Yankees", "league" =: "American"]]
, [])] _ <- db $ updateMany "team" [([ "_id" =: _id]
updatedResult <- db $ rest =<< find (select [] "team") , ["$set" =: ["league" =: "European"]]
updatedResult `shouldBe` [["_id" =: _id, "name" =: "Yankees", "league" =: "European"]] , [])]
updatedResult <- db $ rest =<< find (select [] "team")
updatedResult `shouldBe` [["_id" =: _id, "name" =: "Yankees", "league" =: "European"]]
it "upserts value" $ do it "upserts value" $ do
c <- db $ count (select [] "team") wireVersion <- getWireVersion
c `shouldBe` 0 when (wireVersion > 1) $ do
_ <- db $ updateMany "team" [( [] c <- db $ count (select [] "team")
, ["name" =: "Giants", "league" =: "MLB"] c `shouldBe` 0
, [Upsert] _ <- db $ updateMany "team" [( []
)] , ["name" =: "Giants", "league" =: "MLB"]
updatedResult <- db $ rest =<< find ((select [] "team") {project = ["_id" =: (0 :: Int)]}) , [Upsert]
map L.sort updatedResult `shouldBe` [["league" =: "MLB", "name" =: "Giants"]] )]
updatedResult <- db $ rest =<< find ((select [] "team") {project = ["_id" =: (0 :: Int)]})
map L.sort updatedResult `shouldBe` [["league" =: "MLB", "name" =: "Giants"]]
it "updates all documents with Multi enabled" $ do it "updates all documents with Multi enabled" $ do
_ <- db $ insert "team" ["name" =: "Yankees", "league" =: "American"] wireVersion <- getWireVersion
_ <- db $ insert "team" ["name" =: "Yankees", "league" =: "MiLB"] when (wireVersion > 1) $ do
_ <- db $ updateMany "team" [( ["name" =: "Yankees"] _ <- db $ insert "team" ["name" =: "Yankees", "league" =: "American"]
, ["$set" =: ["league" =: "MLB"]] _ <- db $ insert "team" ["name" =: "Yankees", "league" =: "MiLB"]
, [MultiUpdate] _ <- db $ updateMany "team" [( ["name" =: "Yankees"]
)] , ["$set" =: ["league" =: "MLB"]]
updatedResult <- db $ rest =<< find ((select [] "team") {project = ["_id" =: (0 :: Int)]}) , [MultiUpdate]
(L.sort $ map L.sort updatedResult) `shouldBe` [ ["league" =: "MLB", "name" =: "Yankees"] )]
, ["league" =: "MLB", "name" =: "Yankees"] updatedResult <- db $ rest =<< find ((select [] "team") {project = ["_id" =: (0 :: Int)]})
] (L.sort $ map L.sort updatedResult) `shouldBe` [ ["league" =: "MLB", "name" =: "Yankees"]
, ["league" =: "MLB", "name" =: "Yankees"]
]
it "updates one document when there is no Multi option" $ do it "updates one document when there is no Multi option" $ do
_ <- db $ insert "team" ["name" =: "Yankees", "league" =: "American"] wireVersion <- getWireVersion
_ <- db $ insert "team" ["name" =: "Yankees", "league" =: "MiLB"] when (wireVersion > 1) $ do
_ <- db $ updateMany "team" [( ["name" =: "Yankees"] _ <- db $ insert "team" ["name" =: "Yankees", "league" =: "American"]
, ["$set" =: ["league" =: "MLB"]] _ <- db $ insert "team" ["name" =: "Yankees", "league" =: "MiLB"]
, [] _ <- db $ updateMany "team" [( ["name" =: "Yankees"]
)] , ["$set" =: ["league" =: "MLB"]]
updatedResult <- db $ rest =<< find ((select [] "team") {project = ["_id" =: (0 :: Int)]}) , []
(L.sort $ map L.sort updatedResult) `shouldBe` [ ["league" =: "MLB", "name" =: "Yankees"] )]
, ["league" =: "MiLB", "name" =: "Yankees"] updatedResult <- db $ rest =<< find ((select [] "team") {project = ["_id" =: (0 :: Int)]})
] (L.sort $ map L.sort updatedResult) `shouldBe` [ ["league" =: "MLB", "name" =: "Yankees"]
, ["league" =: "MiLB", "name" =: "Yankees"]
]
it "can process different updates" $ do it "can process different updates" $ do
_ <- db $ insert "team" ["name" =: "Yankees", "league" =: "American"] wireVersion <- getWireVersion
_ <- db $ insert "team" ["name" =: "Giants" , "league" =: "MiLB"] when (wireVersion > 1) $ do
_ <- db $ updateMany "team" [ ( ["name" =: "Yankees"] _ <- db $ insert "team" ["name" =: "Yankees", "league" =: "American"]
, ["$set" =: ["league" =: "MiLB"]] _ <- db $ insert "team" ["name" =: "Giants" , "league" =: "MiLB"]
, [] _ <- db $ updateMany "team" [ ( ["name" =: "Yankees"]
) , ["$set" =: ["league" =: "MiLB"]]
, ( ["name" =: "Giants"]
, ["$set" =: ["league" =: "MLB"]]
, []
)
]
updatedResult <- db $ rest =<< find ((select [] "team") {project = ["_id" =: (0 :: Int)]})
(L.sort $ map L.sort updatedResult) `shouldBe` [ ["league" =: "MLB" , "name" =: "Giants"]
, ["league" =: "MiLB", "name" =: "Yankees"]
]
it "can process different updates" $ do
_ <- db $ insert "team" ["name" =: "Yankees", "league" =: "American", "score" =: (Nothing :: Maybe Int)]
_ <- db $ insert "team" ["name" =: "Giants" , "league" =: "MiLB", "score" =: (1 :: Int)]
(db $ updateMany "team" [ ( ["name" =: "Yankees"]
, ["$inc" =: ["score" =: (1 :: Int)]]
, []
)
, ( ["name" =: "Giants"]
, ["$inc" =: ["score" =: (2 :: Int)]]
, []
)
]) `shouldThrow` anyException
updatedResult <- db $ rest =<< find ((select [] "team") {project = ["_id" =: (0 :: Int)]})
(L.sort $ map L.sort updatedResult) `shouldBe` [ ["league" =: "American", "name" =: "Yankees", "score" =: (Nothing :: Maybe Int)]
, ["league" =: "MiLB" , "name" =: "Giants" , "score" =: (1 :: Int)]
]
it "can handle big updates" $ do
let docs = (flip map) [0..20000] $ \i ->
["name" =: (T.pack $ "name " ++ (show i))]
ids <- db $ insertAll "bigCollection" docs
let updateDocs = (flip map) ids (\i -> ( [ "_id" =: i]
, ["$set" =: ["name" =: ("name " ++ (show i))]]
, [] , []
)) )
_ <- db $ updateMany "team" updateDocs , ( ["name" =: "Giants"]
updatedResult <- db $ rest =<< find (select [] "team") , ["$set" =: ["league" =: "MLB"]]
forM_ updatedResult $ \r -> let (i :: ObjectId) = "_id" `at` r , []
in (("name" `at` r) :: String) `shouldBe` ("name" ++ (show i)) )
]
updatedResult <- db $ rest =<< find ((select [] "team") {project = ["_id" =: (0 :: Int)]})
(L.sort $ map L.sort updatedResult) `shouldBe` [ ["league" =: "MLB" , "name" =: "Giants"]
, ["league" =: "MiLB", "name" =: "Yankees"]
]
it "can process different updates" $ do
wireVersion <- getWireVersion
when (wireVersion > 1) $ do
_ <- db $ insert "team" ["name" =: "Yankees", "league" =: "American", "score" =: (Nothing :: Maybe Int)]
_ <- db $ insert "team" ["name" =: "Giants" , "league" =: "MiLB", "score" =: (1 :: Int)]
updateResult <- (db $ updateMany "team" [ ( ["name" =: "Yankees"]
, ["$inc" =: ["score" =: (1 :: Int)]]
, []
)
, ( ["name" =: "Giants"]
, ["$inc" =: ["score" =: (2 :: Int)]]
, []
)
])
failed updateResult `shouldBe` True
updatedResult <- db $ rest =<< find ((select [] "team") {project = ["_id" =: (0 :: Int)]})
(L.sort $ map L.sort updatedResult) `shouldBe` [ ["league" =: "American", "name" =: "Yankees", "score" =: (Nothing :: Maybe Int)]
, ["league" =: "MiLB" , "name" =: "Giants" , "score" =: (1 :: Int)]
]
it "can handle big updates" $ do
wireVersion <- getWireVersion
when (wireVersion > 1) $ do
let docs = (flip map) [0..20000] $ \i ->
["name" =: (T.pack $ "name " ++ (show i))]
ids <- db $ insertAll "bigCollection" docs
let updateDocs = (flip map) ids (\i -> ( [ "_id" =: i]
, ["$set" =: ["name" =: ("name " ++ (show i))]]
, []
))
_ <- db $ updateMany "team" updateDocs
updatedResult <- db $ rest =<< find (select [] "team")
forM_ updatedResult $ \r -> let (i :: ObjectId) = "_id" `at` r
in (("name" `at` r) :: String) `shouldBe` ("name" ++ (show i))
describe "updateAll" $ do describe "updateAll" $ do
it "can process different updates" $ do it "can process different updates" $ do
_ <- db $ insert "team" ["name" =: "Yankees", "league" =: "American", "score" =: (Nothing :: Maybe Int)] wireVersion <- getWireVersion
_ <- db $ insert "team" ["name" =: "Giants" , "league" =: "MiLB", "score" =: (1 :: Int)] when (wireVersion > 1) $ do
(db $ updateAll "team" [ ( ["name" =: "Yankees"] _ <- db $ insert "team" ["name" =: "Yankees", "league" =: "American", "score" =: (Nothing :: Maybe Int)]
, ["$inc" =: ["score" =: (1 :: Int)]] _ <- db $ insert "team" ["name" =: "Giants" , "league" =: "MiLB", "score" =: (1 :: Int)]
, [] updateResult <- (db $ updateAll "team" [ ( ["name" =: "Yankees"]
) , ["$inc" =: ["score" =: (1 :: Int)]]
, ( ["name" =: "Giants"] , []
, ["$inc" =: ["score" =: (2 :: Int)]] )
, [] , ( ["name" =: "Giants"]
) , ["$inc" =: ["score" =: (2 :: Int)]]
]) `shouldThrow` anyException , []
updatedResult <- db $ rest =<< find ((select [] "team") {project = ["_id" =: (0 :: Int)]}) )
(L.sort $ map L.sort updatedResult) `shouldBe` [ ["league" =: "American", "name" =: "Yankees", "score" =: (Nothing :: Maybe Int)] ])
, ["league" =: "MiLB" , "name" =: "Giants" , "score" =: (3 :: Int)] failed updateResult `shouldBe` True
] updatedResult <- db $ rest =<< find ((select [] "team") {project = ["_id" =: (0 :: Int)]})
(L.sort $ map L.sort updatedResult) `shouldBe` [ ["league" =: "American", "name" =: "Yankees", "score" =: (Nothing :: Maybe Int)]
, ["league" =: "MiLB" , "name" =: "Giants" , "score" =: (3 :: Int)]
]
it "returns correct number of matched and modified" $ do
wireVersion <- getWireVersion
when (wireVersion > 1) $ do
_ <- db $ insertMany "testCollection" [["myField" =: "myValue"], ["myField2" =: "myValue2"]]
_ <- db $ insertMany "testCollection" [["myField" =: "myValue"], ["myField2" =: "myValue2"]]
res <- db $ updateMany "testCollection" [(["myField" =: "myValue"], ["$set" =: ["myField" =: "newValue"]], [MultiUpdate])]
nMatched res `shouldBe` 2
nModified res `shouldBe` (Just 2)
it "returns correct number of upserted" $ do
wireVersion <- getWireVersion
when (wireVersion > 1) $ do
res <- db $ updateMany "testCollection" [(["myField" =: "myValue"], ["$set" =: ["myfield" =: "newValue"]], [Upsert])]
(length $ upserted res) `shouldBe` 1
it "updates only one doc without multi update" $ do
wireVersion <- getWireVersion
when (wireVersion > 1) $ do
_ <- db $ insertMany "testCollection" [["myField" =: "myValue"], ["myField2" =: "myValue2"]]
_ <- db $ insertMany "testCollection" [["myField" =: "myValue"], ["myField2" =: "myValue2"]]
res <- db $ updateMany "testCollection" [(["myField" =: "myValue"], ["$set" =: ["myField" =: "newValue"]], [])]
nMatched res `shouldBe` 1
nModified res `shouldBe` (Just 1)
describe "delete" $ do describe "delete" $ do
it "actually deletes something" $ do it "actually deletes something" $ do
@ -334,34 +378,47 @@ spec = around withCleanDatabase $ do
describe "deleteMany" $ do describe "deleteMany" $ do
it "actually deletes something" $ do it "actually deletes something" $ do
_ <- db $ insert "team" ["name" =: ("Giants" :: String)] wireVersion <- getWireVersion
_ <- db $ insert "team" ["name" =: ("Yankees" :: String)] when (wireVersion > 1) $ do
_ <- db $ deleteMany "team" [ (["name" =: ("Giants" :: String)], []) _ <- db $ insert "team" ["name" =: ("Giants" :: String)]
, (["name" =: ("Yankees" :: String)], []) _ <- db $ insert "team" ["name" =: ("Yankees" :: String)]
] _ <- db $ deleteMany "team" [ (["name" =: ("Giants" :: String)], [])
updatedResult <- db $ rest =<< find ((select [] "team") {project = ["_id" =: (0 :: Int)]}) , (["name" =: ("Yankees" :: String)], [])
length updatedResult `shouldBe` 0 ]
updatedResult <- db $ rest =<< find ((select [] "team") {project = ["_id" =: (0 :: Int)]})
length updatedResult `shouldBe` 0
describe "deleteAll" $ do describe "deleteAll" $ do
it "actually deletes something" $ do it "actually deletes something" $ do
_ <- db $ insert "team" [ "name" =: ("Giants" :: String) wireVersion <- getWireVersion
, "score" =: (Nothing :: Maybe Int) when (wireVersion > 1) $ do
] _ <- db $ insert "team" [ "name" =: ("Giants" :: String)
_ <- db $ insert "team" [ "name" =: ("Yankees" :: String) , "score" =: (Nothing :: Maybe Int)
, "score" =: (1 :: Int) ]
] _ <- db $ insert "team" [ "name" =: ("Yankees" :: String)
_ <- db $ deleteAll "team" [ (["name" =: ("Giants" :: String)], []) , "score" =: (1 :: Int)
, (["name" =: ("Yankees" :: String)], []) ]
] _ <- db $ deleteAll "team" [ (["name" =: ("Giants" :: String)], [])
updatedResult <- db $ rest =<< find ((select [] "team") {project = ["_id" =: (0 :: Int)]}) , (["name" =: ("Yankees" :: String)], [])
length updatedResult `shouldBe` 0 ]
updatedResult <- db $ rest =<< find ((select [] "team") {project = ["_id" =: (0 :: Int)]})
length updatedResult `shouldBe` 0
it "can handle big deletes" $ do it "can handle big deletes" $ do
let docs = (flip map) [0..20000] $ \i -> wireVersion <- getWireVersion
["name" =: (T.pack $ "name " ++ (show i))] when (wireVersion > 1) $ do
_ <- db $ insertAll "bigCollection" docs let docs = (flip map) [0..20000] $ \i ->
_ <- db $ deleteAll "bigCollection" $ map (\d -> (d, [])) docs ["name" =: (T.pack $ "name " ++ (show i))]
updatedResult <- db $ rest =<< find ((select [] "bigCollection") {project = ["_id" =: (0 :: Int)]}) _ <- db $ insertAll "bigCollection" docs
length updatedResult `shouldBe` 0 _ <- db $ deleteAll "bigCollection" $ map (\d -> (d, [])) docs
updatedResult <- db $ rest =<< find ((select [] "bigCollection") {project = ["_id" =: (0 :: Int)]})
length updatedResult `shouldBe` 0
it "returns correct result" $ do
wireVersion <- getWireVersion
when (wireVersion > 1) $ do
_ <- db $ insert "testCollection" [ "myField" =: "myValue" ]
_ <- db $ insert "testCollection" [ "myField" =: "myValue" ]
res <- db $ deleteAll "testCollection" [ (["myField" =: "myValue"], []) ]
nRemoved res `shouldBe` 2
describe "allCollections" $ do describe "allCollections" $ do
it "returns all collections in a database" $ do it "returns all collections in a database" $ do