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See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with this library; if not, write to the Free Software + Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + +Please see COPYING for the license. + diff --git a/Database/HDBC/Sqlite3.hs b/Database/HDBC/Sqlite3.hs new file mode 100644 --- /dev/null +++ b/Database/HDBC/Sqlite3.hs @@ -0,0 +1,41 @@ +{- +Copyright (C) 2005 John Goerzen + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + This library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with this library; if not, write to the Free Software + Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +-} + +{- | + Module : Database.HDBC.Sqlite3 + Copyright : Copyright (C) 2005 John Goerzen + License : GNU LGPL, version 2.1 or above + + Maintainer : John Goerzen + Stability : provisional + Portability: portable + +HDBC driver interface for Sqlite 3.x. + +Written by John Goerzen, jgoerzen\@complete.org +-} + +module Database.HDBC.Sqlite3 + ( + connectSqlite3 + ) + +where + +import Database.HDBC.Sqlite3.Connection(connectSqlite3) + diff --git a/Database/HDBC/Sqlite3/Connection.hs b/Database/HDBC/Sqlite3/Connection.hs new file mode 100644 --- /dev/null +++ b/Database/HDBC/Sqlite3/Connection.hs @@ -0,0 +1,117 @@ +{-# CFILES hdbc-sqlite3-helper.c #-} +-- above line for hugs +{- +Copyright (C) 2005 John Goerzen + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + This library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with this library; if not, write to the Free Software + Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +-} + +module Database.HDBC.Sqlite3.Connection where + +import Database.HDBC.Types +import Database.HDBC +import Database.HDBC.DriverUtils +import Database.HDBC.Sqlite3.Types +import Database.HDBC.Sqlite3.Statement +import Foreign.C.Types +import Foreign.C.String +import Foreign.Marshal +import Foreign.Storable +import Database.HDBC.Sqlite3.Utils +import Foreign.ForeignPtr +import Foreign.Ptr +import Control.Concurrent.MVar + +{- | Connect to an Sqlite version 3 database. The only parameter needed is +the filename of the database to connect to. + +All database accessor functions are provided in the main HDBC module. -} +connectSqlite3 :: FilePath -> IO Connection +connectSqlite3 fp = + withCString fp + (\cs -> alloca + (\(p::Ptr (Ptr CSqlite3)) -> + do res <- sqlite3_open cs p + o <- peek p + fptr <- newForeignPtr sqlite3_closeptr o + newconn <- mkConn fp fptr + checkError ("connectSqlite3 " ++ fp) fptr res + return newconn + ) + ) + +mkConn :: FilePath -> Sqlite3 -> IO Connection +mkConn fp obj = + do children <- newMVar [] + begin_transaction obj children + ver <- (sqlite3_libversion >>= peekCString) + return $ Connection { + disconnect = fdisconnect obj children, + commit = fcommit obj children, + rollback = frollback obj children, + run = frun obj children, + prepare = newSth obj children, + clone = connectSqlite3 fp, + hdbcDriverName = "sqlite3", + hdbcClientVer = ver, + proxiedClientName = "sqlite3", + proxiedClientVer = ver, + dbTransactionSupport = True, + dbServerVer = ver, + getTables = fgettables obj children, + describeTable = \_ -> fail $ "Sqlite3 backend does not support describeTable"} + +fgettables o mchildren = + do sth <- newSth o mchildren "SELECT name FROM sqlite_master WHERE type='table' ORDER BY name" + execute sth [] + res1 <- fetchAllRows sth + let res = map fromSql $ concat res1 + return $ seq (length res) res + +-------------------------------------------------- +-- Guts here +-------------------------------------------------- + +begin_transaction :: Sqlite3 -> ChildList -> IO () +begin_transaction o children = frun o children "BEGIN" [] >> return () + +frun o mchildren query args = + do sth <- newSth o mchildren query + res <- execute sth args + finish sth + return res + +fcommit o children = do frun o children "COMMIT" [] + begin_transaction o children +frollback o children = do frun o children "ROLLBACK" [] + begin_transaction o children + +fdisconnect :: Sqlite3 -> ChildList -> IO () +fdisconnect o mchildren = withRawSqlite3 o $ \p -> + do closeAllChildren mchildren + r <- sqlite3_close p + checkError "disconnect" o r + +foreign import ccall unsafe "hdbc-sqlite3-helper.h sqlite3_open2" + sqlite3_open :: CString -> (Ptr (Ptr CSqlite3)) -> IO CInt + +foreign import ccall unsafe "hdbc-sqlite3-helper.h &sqlite3_close_finalizer" + sqlite3_closeptr :: FunPtr ((Ptr CSqlite3) -> IO ()) + +foreign import ccall unsafe "hdbc-sqlite3-helper.h sqlite3_close_app" + sqlite3_close :: Ptr CSqlite3 -> IO CInt + +foreign import ccall unsafe "sqlite3.h sqlite3_libversion" + sqlite3_libversion :: IO CString diff --git a/Database/HDBC/Sqlite3/Statement.hsc b/Database/HDBC/Sqlite3/Statement.hsc new file mode 100644 --- /dev/null +++ b/Database/HDBC/Sqlite3/Statement.hsc @@ -0,0 +1,259 @@ +-- -*- mode: haskell; -*- +{-# CFILES hdbc-sqlite3-helper.c #-} +-- Above line for Hugs +{- +Copyright (C) 2005 John Goerzen + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + This library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with this library; if not, write to the Free Software + Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + +-} +module Database.HDBC.Sqlite3.Statement where +import Database.HDBC.Types +import Database.HDBC +import Database.HDBC.Sqlite3.Types +import Database.HDBC.Sqlite3.Utils +import Foreign.C.Types +import Foreign.ForeignPtr +import Foreign.Ptr +import Control.Concurrent.MVar +import Foreign.C.String +import Foreign.Marshal +import Foreign.Storable +import Control.Monad +import Data.List +import Control.Exception +import Database.HDBC.DriverUtils + +#include + +{- One annoying thing about Sqlite is that a disconnect operation will actually +fail if there are any active statements. This is highly annoying, and makes +for some somewhat complex algorithms. -} + +data StoState = Empty -- ^ Not initialized or last execute/fetchrow had no results + | Prepared Stmt -- ^ Prepared but not executed + | Executed Stmt -- ^ Executed and more rows are expected + +instance Show StoState where + show Empty = "Empty" + show (Prepared _) = "Prepared" + show (Executed _) = "Executed" + +data SState = SState {dbo :: Sqlite3, + stomv :: MVar StoState, + querys :: String, + colnamesmv :: MVar [String]} + +newSth :: Sqlite3 -> ChildList -> String -> IO Statement +newSth indbo mchildren str = + do newstomv <- newMVar Empty + newcolnamesmv <- newMVar [] + let sstate = SState{dbo = indbo, + stomv = newstomv, + querys = str, + colnamesmv = newcolnamesmv} + modifyMVar_ (stomv sstate) (\_ -> (fprepare sstate >>= return . Prepared)) + let retval = + Statement {execute = fexecute sstate, + executeMany = fexecutemany sstate, + finish = public_ffinish sstate, + fetchRow = ffetchrow sstate, + originalQuery = str, + getColumnNames = readMVar (colnamesmv sstate), + describeResult = fail "Sqlite3 backend does not support describeResult"} + addChild mchildren retval + return retval + +{- The deal with adding the \0 below is in response to an apparent bug in +sqlite3. See debian bug #343736. + +This function assumes that any existing query in the state has already +been terminated. (FIXME: should check this at runtime.... never run fprepare +unless state is Empty) +-} +fprepare :: SState -> IO Stmt +fprepare sstate = withRawSqlite3 (dbo sstate) + (\p -> withCStringLen ((querys sstate) ++ "\0") + (\(cs, cslen) -> alloca + (\(newp::Ptr (Ptr CStmt)) -> + (do res <- sqlite3_prepare p cs (fromIntegral cslen) newp nullPtr + checkError ("prepare " ++ (show cslen) ++ ": " ++ (querys sstate)) + (dbo sstate) res + newo <- peek newp + newForeignPtr sqlite3_finalizeptr newo + ) + ) + ) + ) + + +{- General algorithm: find out how many columns we have, check the type +of each to see if it's NULL. If it's not, fetch it as text and return that. + +Note that execute() will have already loaded up the first row -- and we +do that each time. so this function returns the row that is already in sqlite, +then loads the next row. -} +ffetchrow :: SState -> IO (Maybe [SqlValue]) +ffetchrow sstate = modifyMVar (stomv sstate) dofetchrow + where dofetchrow Empty = return (Empty, Nothing) + dofetchrow (Prepared _) = + throwDyn $ SqlError {seState = "HDBC Sqlite3 fetchrow", + seNativeError = (-1), + seErrorMsg = "Attempt to fetch row from Statement that has not been executed. Query was: " ++ (querys sstate)} + dofetchrow (Executed sto) = withStmt sto (\p -> + do ccount <- sqlite3_column_count p + -- fetch the data + res <- mapM (getCol p) [0..(ccount - 1)] + r <- fstep (dbo sstate) p + if r + then return (Executed sto, Just res) + else do ffinish (dbo sstate) sto + return (Empty, Just res) + ) + + getCol p icol = + do t <- sqlite3_column_type p icol + if t == #{const SQLITE_NULL} + then return SqlNull + else do text <- sqlite3_column_text p icol + len <- sqlite3_column_bytes p icol + s <- peekCStringLen (text, fromIntegral len) + return (SqlString s) + +fstep :: Sqlite3 -> Ptr CStmt -> IO Bool +fstep dbo p = + do r <- sqlite3_step p + case r of + #{const SQLITE_ROW} -> return True + #{const SQLITE_DONE} -> return False + #{const SQLITE_ERROR} -> checkError "step" dbo #{const SQLITE_ERROR} + >> (throwDyn $ SqlError + {seState = "", + seNativeError = 0, + seErrorMsg = "In HDBC step, internal processing error (got SQLITE_ERROR with no error)"}) + x -> throwDyn $ SqlError {seState = "", + seNativeError = fromIntegral x, + seErrorMsg = "In HDBC step, unexpected result from sqlite3_step"} + +fexecute sstate args = modifyMVar (stomv sstate) doexecute + where doexecute (Executed sto) = ffinish (dbo sstate) sto >> doexecute Empty + doexecute Empty = -- already cleaned up from last time + do sto <- fprepare sstate + doexecute (Prepared sto) + doexecute (Prepared sto) = withStmt sto (\p -> + do c <- sqlite3_bind_parameter_count p + when (c /= genericLength args) + (throwDyn $ SqlError {seState = "", + seNativeError = (-1), + seErrorMsg = "In HDBC execute, received " ++ (show args) ++ " but expected " ++ (show c) ++ " args."}) + sqlite3_reset p >>= checkError "execute (reset)" (dbo sstate) + zipWithM_ (bindArgs p) [1..c] args + + {- Logic for handling counts of changes: look at the total + changes before and after the query. If they differ, + then look at the local changes. (The local change counter + appears to not be updated unless really running a query + that makes a change, according to the docs.) + + This is OK thread-wise because SQLite doesn't support + using a given dbh in more than one thread anyway. -} + origtc <- withSqlite3 (dbo sstate) sqlite3_total_changes + r <- fstep (dbo sstate) p + newtc <- withSqlite3 (dbo sstate) sqlite3_total_changes + changes <- if origtc == newtc + then return 0 + else withSqlite3 (dbo sstate) sqlite3_changes + fgetcolnames p >>= swapMVar (colnamesmv sstate) + if r + then return (Executed sto, fromIntegral changes) + else do ffinish (dbo sstate) sto + return (Empty, fromIntegral changes) + ) + bindArgs p i SqlNull = + sqlite3_bind_null p i >>= + checkError ("execute (binding NULL column " ++ (show i) ++ ")") + (dbo sstate) + bindArgs p i arg = withCStringLen (fromSql arg) + (\(cs, len) -> do r <- sqlite3_bind_text2 p i cs + (fromIntegral len) + checkError ("execute (binding column " ++ + (show i) ++ ")") (dbo sstate) r + ) + +fgetcolnames csth = + do count <- sqlite3_column_count csth + mapM (getCol csth) [0..(count -1)] + where getCol csth i = + do cstr <- sqlite3_column_name csth i + peekCString cstr + +-- FIXME: needs a faster algorithm. +fexecutemany sstate arglist = + mapM_ (fexecute sstate) arglist + +--ffinish o = withForeignPtr o (\p -> sqlite3_finalize p >>= checkError "finish") +-- Finish and change state +public_ffinish sstate = modifyMVar_ (stomv sstate) worker + where worker (Empty) = return Empty + worker (Prepared sto) = ffinish (dbo sstate) sto >> return Empty + worker (Executed sto) = ffinish (dbo sstate) sto >> return Empty + +ffinish dbo o = withRawStmt o (\p -> do r <- sqlite3_finalize p + checkError "finish" dbo r) + +foreign import ccall unsafe "hdbc-sqlite3-helper.h &sqlite3_finalize_finalizer" + sqlite3_finalizeptr :: FunPtr ((Ptr CStmt) -> IO ()) + +foreign import ccall unsafe "hdbc-sqlite3-helper.h sqlite3_finalize_app" + sqlite3_finalize :: (Ptr CStmt) -> IO CInt + +foreign import ccall unsafe "hdbc-sqlite3-helper.h sqlite3_prepare2" + sqlite3_prepare :: (Ptr CSqlite3) -> CString -> CInt -> Ptr (Ptr CStmt) -> Ptr (Ptr CString) -> IO CInt + +foreign import ccall unsafe "sqlite3.h sqlite3_bind_parameter_count" + sqlite3_bind_parameter_count :: (Ptr CStmt) -> IO CInt + +foreign import ccall unsafe "sqlite3.h sqlite3_step" + sqlite3_step :: (Ptr CStmt) -> IO CInt + +foreign import ccall unsafe "sqlite3.h sqlite3_reset" + sqlite3_reset :: (Ptr CStmt) -> IO CInt + +foreign import ccall unsafe "sqlite3.h sqlite3_column_count" + sqlite3_column_count :: (Ptr CStmt) -> IO CInt + +foreign import ccall unsafe "sqlite3.h sqlite3_column_name" + sqlite3_column_name :: Ptr CStmt -> CInt -> IO CString + +foreign import ccall unsafe "sqlite3.h sqlite3_column_type" + sqlite3_column_type :: (Ptr CStmt) -> CInt -> IO CInt + +foreign import ccall unsafe "sqlite3.h sqlite3_column_text" + sqlite3_column_text :: (Ptr CStmt) -> CInt -> IO CString + +foreign import ccall unsafe "sqlite3.h sqlite3_column_bytes" + sqlite3_column_bytes :: (Ptr CStmt) -> CInt -> IO CInt + +foreign import ccall unsafe "hdbc-sqlite3-helper.h sqlite3_bind_text2" + sqlite3_bind_text2 :: (Ptr CStmt) -> CInt -> CString -> CInt -> IO CInt + +foreign import ccall unsafe "sqlite3.h sqlite3_bind_null" + sqlite3_bind_null :: (Ptr CStmt) -> CInt -> IO CInt + +foreign import ccall unsafe "sqlite3.h sqlite3_changes" + sqlite3_changes :: Ptr CSqlite3 -> IO CInt + +foreign import ccall unsafe "sqlite3.h sqlite3_total_changes" + sqlite3_total_changes :: Ptr CSqlite3 -> IO CInt diff --git a/Database/HDBC/Sqlite3/Types.hs b/Database/HDBC/Sqlite3/Types.hs new file mode 100644 --- /dev/null +++ b/Database/HDBC/Sqlite3/Types.hs @@ -0,0 +1,11 @@ +module Database.HDBC.Sqlite3.Types +where + +import Foreign.ForeignPtr + +data CSqlite3 +type Sqlite3 = ForeignPtr CSqlite3 + +data CStmt +type Stmt = ForeignPtr CStmt + diff --git a/Database/HDBC/Sqlite3/Utils.hsc b/Database/HDBC/Sqlite3/Utils.hsc new file mode 100644 --- /dev/null +++ b/Database/HDBC/Sqlite3/Utils.hsc @@ -0,0 +1,75 @@ +{- -*- mode: haskell; -*- +Copyright (C) 2005 John Goerzen + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + This library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with this library; if not, write to the Free Software + Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + +-} + +module Database.HDBC.Sqlite3.Utils where +import Foreign.C.String +import Foreign.ForeignPtr +import Foreign.Ptr +import Database.HDBC.Types +import Database.HDBC.Sqlite3.Types +import Foreign.C.Types +import Control.Exception +import Foreign.Storable + +#include "hdbc-sqlite3-helper.h" + +checkError :: String -> Sqlite3 -> CInt -> IO () +checkError _ _ 0 = return () +checkError msg o res = + withSqlite3 o + (\p -> do rc <- sqlite3_errmsg p + str <- peekCString rc + throwDyn $ SqlError {seState = "", + seNativeError = fromIntegral res, + seErrorMsg = msg ++ ": " ++ str} + ) + +{- This is a little hairy. + +We have a CSqlite3 object that is actually a finalizeonce wrapper around +the real object. We use withSqlite3 to dereference the foreign pointer, +and then extract the pointer to the real object from the finalizeonce struct. + +But, when we close the connection, we need the finalizeonce struct, so that's +done by withRawSqlite3. + +Ditto for statements. -} + +withSqlite3 :: Sqlite3 -> (Ptr CSqlite3 -> IO b) -> IO b +withSqlite3 = genericUnwrap + +withRawSqlite3 :: Sqlite3 -> (Ptr CSqlite3 -> IO b) -> IO b +withRawSqlite3 = withForeignPtr + +withStmt :: Stmt -> (Ptr CStmt -> IO b) -> IO b +withStmt = genericUnwrap + +withRawStmt :: Stmt -> (Ptr CStmt -> IO b) -> IO b +withRawStmt = withForeignPtr + + +genericUnwrap :: ForeignPtr a -> (Ptr a -> IO b) -> IO b +genericUnwrap fptr action = withForeignPtr fptr (\structptr -> + do objptr <- #{peek finalizeonce, encapobj} structptr + action objptr + ) + +foreign import ccall unsafe "sqlite3.h sqlite3_errmsg" + sqlite3_errmsg :: (Ptr CSqlite3) -> IO CString + diff --git a/HDBC-sqlite3.cabal b/HDBC-sqlite3.cabal new file mode 100644 --- /dev/null +++ b/HDBC-sqlite3.cabal @@ -0,0 +1,19 @@ +Extra-Libraries: sqlite3 +Name: HDBC-sqlite3 +Version: 1.0.1.0 +License: LGPL +Maintainer: John Goerzen +Stability: Alpha +Copyright: Copyright (c) 2005-2006 John Goerzen +Exposed-Modules: Database.HDBC.Sqlite3 +Other-Modules: Database.HDBC.Sqlite3.Connection, + Database.HDBC.Sqlite3.Statement, + Database.HDBC.Sqlite3.Types, + Database.HDBC.Sqlite3.Utils +--Extensions: ExistentialQuantification, AllowOverlappingInstances, +-- AllowUndecidableInstances, CPP +Extensions: ExistentialQuantification +C-Sources: hdbc-sqlite3-helper.c +Build-Depends: base, mtl, HDBC>=0.99.2 +include-dirs: . +GHC-Options: -O2 diff --git a/Makefile b/Makefile new file mode 100644 --- /dev/null +++ b/Makefile @@ -0,0 +1,56 @@ +# Copyright (C) 2004 - 2005 John Goerzen +# +# This library is free software; you can redistribute it and/or +# modify it under the terms of the GNU Lesser General Public +# License as published by the Free Software Foundation; either +# version 2.1 of the License, or (at your option) any later version. +# +# This library is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +# Lesser General Public License for more details. +# +# You should have received a copy of the GNU Lesser General Public +# License along with this library; if not, write to the Free Software +# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + +GHCPARMS := -fglasgow-exts + +.PHONY: all hugsbuild +all: setup # GHC build + ./setup configure --user + ./setup build + +hugsbuild: setup + ./setup configure --hugs + ./setup build + +setup: Setup.lhs HDBC-sqlite3.cabal + ghc -package Cabal Setup.lhs -o setup + +clean: + -./setup clean + -rm -rf html `find . -name "*.o"` `find . -name "*.hi" | grep -v debian` \ + `find . -name "*~" | grep -v debian` *.a setup dist testsrc/runtests \ + local-pkg doctmp + -rm -rf testtmp/* testtmp* + +testsrc/runtests: all $(wildcard testsrc/*.hs) $(wildcard testsrc/*/*.hs) $(wildcard testsrc/*/*/*.hs) + cd testsrc && ghc --make -package mtl -package HUnit -package HDBC -lsqlite3 ../dist/build/hdbc-sqlite3-helper.o $(GHCPARMS) -I.. -o runtests -i../dist/build:.. runtests.hs + +test-ghc6: testsrc/runtests + testsrc/runtests + +test-hugs: hugsbuild + runhugs -98 +o -P$(PWD)/dist/build:$(PWD)/testsrc: testsrc/runtests.hs + +interact-hugs: + hugs -98 +o -P$(PWD)/dist/build: + +interact-ghci: all + ghci -idist/build -Ldist/build $(GHCPARMS) + +interact: interact-hugs + +test: test-ghc6 test-hugs + diff --git a/README.txt b/README.txt new file mode 100644 --- /dev/null +++ b/README.txt @@ -0,0 +1,66 @@ +Welcome to HDBC, Haskell Database Connectivity. + +This package provides a database backend driver for Sqlite version 3. + +Please see HDBC itself for documentation on use. If you don't already +have it, you can browse this documentation at +http://darcs.complete.org/hdbc/doc/index.html. + +This package provides one function in module Database.HDBC.Sqlite3: + +{- | Connect to an Sqlite version 3 database. The only parameter needed is +the filename of the database to connect to. + +All database accessor functions are provided in the main HDBC module. -} +connectSqlite3 :: FilePath -> IO Connection + +DIFFERENCES FROM HDBC STANDARD +------------------------------ + +SQLite is unable to return the number of modified rows from a table +when you run a "DELETE FROM" command with no WHERE clause. + +On the topic of thread safety, SQLite has some limitations, and thus +HDBC programs that use SQLite will share those limitations. Please +see http://www.sqlite.org/faq.html#q8 for more details. + +describeTable and describeResult are not supported by this module. + +PREREQUISITES +------------- + +Before installing this package, you'll need to have HDBC 0.99.0 or +above installed. You can download HDBC from http://quux.org/devel/hdbc. + +You'll need either GHC 6.4.1 or above, or Hugs 2005xx or above. + +INSTALLATION +------------ + +The steps to install are: + +1) ghc --make -o setup Setup.lhs + +2) ./setup configure + +3) ./setup build + +4) ./setup install (as root) + +If you're on Windows, you can omit the leading "./". + +USAGE +----- + +To use with hugs, you'll want to use hugs -98. + +To use with GHC, you'll want to use: + + -package HDBC -package HDBC-sqlite3 + +Or, with Cabal, use: + + Build-Depends: HDBC>=0.99.0, HDBC-sqlite3 + +-- John Goerzen + December 2005 diff --git a/Setup.lhs b/Setup.lhs new file mode 100644 --- /dev/null +++ b/Setup.lhs @@ -0,0 +1,6 @@ +#!/usr/bin/env runhugs + +> import Distribution.Simple + +> main = defaultMain + diff --git a/TODO b/TODO new file mode 100644 --- /dev/null +++ b/TODO @@ -0,0 +1,5 @@ +types + +keep a list of open statements so they can be closed on a call to close. + +optimize multiple executions and executeMany diff --git a/debian/changelog b/debian/changelog new file mode 100644 --- /dev/null +++ b/debian/changelog @@ -0,0 +1,43 @@ +hdbc-sqlite3 (1.0.1.0) unstable; urgency=low + + * Rebuild for HDBC 1.0.1. + + -- John Goerzen Sat, 22 Jul 2006 07:27:38 -0500 + +hdbc-sqlite3 (1.0.0.0) unstable; urgency=low + + * Blessing as 1.0.0.0. + * Rebuild for Debian with GHC 6.4.2. + + -- John Goerzen Thu, 29 Jun 2006 18:56:29 -0500 + +hdbc-sqlite3 (0.99.2.0) unstable; urgency=low + + * Updated to 0.99.2. + + -- John Goerzen Tue, 28 Mar 2006 05:36:18 -0600 + +hdbc-sqlite3 (0.99.1.0) unstable; urgency=low + + * New 0.99.1.0 release: new memory management system. + + -- John Goerzen Mon, 27 Mar 2006 19:17:57 -0600 + +hdbc-sqlite3 (0.99.0.2) unstable; urgency=low + + * Add -I.. when generating runtests. Closes: #345963. + + -- John Goerzen Wed, 4 Jan 2006 10:13:00 -0600 + +hdbc-sqlite3 (0.99.0.1) unstable; urgency=low + + * Removed -package MissingH from Makefile when building + testsrc/runtests. We no longer need it anyway. Closes: #345540. + + -- John Goerzen Sun, 1 Jan 2006 10:47:31 -0600 + +hdbc-sqlite3 (0.99.0.0) unstable; urgency=low + + * Initial Release. + + -- John Goerzen Tue, 27 Dec 2005 13:27:23 -0600 diff --git a/debian/compat b/debian/compat new file mode 100644 --- /dev/null +++ b/debian/compat @@ -0,0 +1,1 @@ +4 diff --git a/debian/control b/debian/control new file mode 100644 --- /dev/null +++ b/debian/control @@ -0,0 +1,30 @@ +Source: hdbc-sqlite3 +Priority: optional +Maintainer: John Goerzen +Build-Depends: debhelper (>= 4.0.0), ghc6 (>= 6.4.2), ghc6 (<< 6.4.2-999), haskell-devscripts (>= 0.5.6), cpphs, haddock, hugs (>= 98.200503.08), libsqlite3-dev (>= 3.3), libghc6-hdbc-dev (>= 1.0.1), libhugs-hdbc (>= 1.0.1) +Standards-Version: 3.6.2 +Section: libs + +Package: libghc6-hdbc-sqlite3-dev +Section: libdevel +Architecture: any +Depends: libghc6-hdbc-dev (>= 1.0.1), ${haskell:Depends}, ${shlibs:Depends}, ${misc:Depends}, libsqlite3-dev (>= 3.3) +Description: Sqlite v3 HDBC (Haskell Database Connectivity) Driver for GHC + HDBC provides an abstraction layer between Haskell programs and SQL + relational databases. This lets you write database code once, in + Haskell, and have it work with any number of backend SQL databases + (MySQL, Oracle, PostgreSQL, ODBC-compliant databases, etc.) + . + This package provides the Sqlite v3 database driver for HDBC under GHC. + +Package: libhugs-hdbc-sqlite3 +Section: libs +Architecture: any +Depends: libhugs-hdbc (>= 1.0.1), ${haskell:Depends}, ${shlibs:Depends}, ${misc:Depends} +Description: Sqlite v3 HDBC (Haskell Database Connectivity) Driver for Hugs + HDBC provides an abstraction layer between Haskell programs and SQL + relational databases. This lets you write database code once, in + Haskell, and have it work with any number of backend SQL databases + (MySQL, Oracle, PostgreSQL, ODBC-compliant databases, etc.) + . + This package provides the Sqlite v3 database driver for HDBC under Hugs. diff --git a/debian/copyright b/debian/copyright new file mode 100644 --- /dev/null +++ b/debian/copyright @@ -0,0 +1,27 @@ +This is hdbc-sqlite3, written and maintained by +John Goerzen + +The original source can always be found at: + ftp://ftp.debian.org/dists/unstable/main/source/ + +The Darcs repository for this program can be accessed with: + darcs get --partial http://darcs.complete.org/hdbc-sqlite3 + +Copyright (C) 2005 John Goerzen + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + This library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with this library; if not, write to the Free Software + Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + +On Debian systems, the complete text of the GNU Lesser General +Public License can be found in `/usr/share/common-licenses/LGPL'. diff --git a/debian/rules b/debian/rules new file mode 100644 --- /dev/null +++ b/debian/rules @@ -0,0 +1,109 @@ +#!/usr/bin/make -f +# -*- makefile -*- +# Sample debian/rules that uses debhelper. +# This file was originally written by Joey Hess and Craig Small. +# As a special exception, when this file is copied by dh-make into a +# dh-make output file, you may use that output file without restriction. +# This special exception was added by Craig Small in version 0.37 of dh-make. + +# Uncomment this to turn on verbose mode. +#export DH_VERBOSE=1 + + + + +CFLAGS = -Wall -g + +ifneq (,$(findstring noopt,$(DEB_BUILD_OPTIONS))) + CFLAGS += -O0 +else + CFLAGS += -O2 +endif + +# shared library versions, option 1 +version=2.0.5 +major=2 +# option 2, assuming the library is created as src/.libs/libfoo.so.2.0.5 or so +#version=`ls src/.libs/lib*.so.* | \ +# awk '{if (match($$0,/[0-9]+\.[0-9]+\.[0-9]+$$/)) print substr($$0,RSTART)}'` +#major=`ls src/.libs/lib*.so.* | \ +# awk '{if (match($$0,/\.so\.[0-9]+$$/)) print substr($$0,RSTART+4)}'` + +configure: configure-stamp +configure-stamp: + dh_testdir + # Add here commands to configure the package. + + touch configure-stamp + + +build: build-stamp +build-stamp: configure-stamp + dh_testdir + + # Add here commands to compile the package. + #$(MAKE) + + touch build-stamp + +clean: + dh_testdir + dh_testroot + rm -f build-stamp configure-stamp + + # Add here commands to clean up after the build process. + -$(MAKE) clean + -./setup clean + -rm -rf setup Setup.hi Setup.ho Setup.o .*config* dist + + dh_clean + +install: build + dh_testdir + dh_testroot + dh_clean -k + dh_installdirs + + # Add here commands to install the package into debian/tmp + #$(MAKE) install DESTDIR=$(CURDIR)/debian/tmp + dh_haskell -a + $(MAKE) clean + $(MAKE) test + +# Build architecture-independent files here. +binary-indep: build install +# Nothing to do by default. + +# Build architecture-dependent files here. +binary-arch: build install + dh_testdir + dh_testroot + dh_installchangelogs -a + dh_installdocs -a README.txt + dh_installexamples -a +# dh_install +# dh_installmenu +# dh_installdebconf +# dh_installlogrotate +# dh_installemacsen +# dh_installpam +# dh_installmime +# dh_installinit +# dh_installcron +# dh_installinfo + dh_installman -a + dh_link -a + dh_strip -a + dh_compress -a + dh_fixperms -a +# dh_perl +# dh_python +# dh_makeshlibs + dh_installdeb -a + dh_shlibdeps -a + dh_gencontrol -a + dh_md5sums -a + dh_builddeb -a + +binary: binary-indep binary-arch +.PHONY: build clean binary-indep binary-arch binary install configure diff --git a/hdbc-sqlite3-helper.c b/hdbc-sqlite3-helper.c new file mode 100644 --- /dev/null +++ b/hdbc-sqlite3-helper.c @@ -0,0 +1,143 @@ +#include +#include +#include +#include "hdbc-sqlite3-helper.h" + +int sqlite3_bind_text2(sqlite3_stmt* a, int b, const char *c, int d) { + return sqlite3_bind_text(a, b, c, d, SQLITE_TRANSIENT); +} + +/* Sqlite things can't finalize more than once. +We'd like to let people call them from the app to get the error, if any. +Yet we'd also like to be able to have a ForeignPtr finalize them. + +So, here's a little wrapper for things. */ + + +int sqlite3_open2(const char *filename, finalizeonce **ppo) { + sqlite3 *ppDb; + finalizeonce *newobj; + int res; + + res = sqlite3_open(filename, &ppDb); + newobj = malloc(sizeof(finalizeonce)); + if (newobj == NULL) { + fprintf(stderr, "\nhdbc sqlite internal error: couldn't malloc memory for newobj\n"); + return -999; + } + newobj->encapobj = (void *) ppDb; + newobj->isfinalized = 0; + newobj->refcount = 1; + newobj->parent = NULL; + *ppo = newobj; +#ifdef DEBUG_HDBC_SQLITE3 + fprintf(stderr, "\nAllocated db at %p %p\n", newobj, newobj->encapobj); +#endif + return res; +} + +int sqlite3_close_app(finalizeonce *ppdb) { + int res; + if (ppdb->isfinalized) { +#ifdef DEBUG_HDBC_SQLITE3 + fprintf(stderr, "\nclose_app on already finalized %p\n", ppdb); +#endif + return SQLITE_OK; + } +#ifdef DEBUG_HDBC_SQLITE3 + fprintf(stderr, "\nclose_app on non-finalized %p\n", ppdb); +#endif + res = sqlite3_close((sqlite3 *) (ppdb->encapobj)); + ppdb->isfinalized = 1; + return res; +} + +void sqlite3_close_finalizer(finalizeonce *ppdb) { +#ifdef DEBUG_HDBC_SQLITE3 + fprintf(stderr, "\nclose_finalizer on %p: %d\n", ppdb, ppdb->isfinalized); +#endif + (ppdb->refcount)--; + sqlite3_conditional_finalizer(ppdb); +} + +void sqlite3_conditional_finalizer(finalizeonce *ppdb) { +#ifdef DEBUG_HDBC_SQLITE3 + fprintf(stderr, "\ncond finalizer on %p: refcount %d\n", ppdb, ppdb->refcount); +#endif + if (ppdb->refcount < 1) { + sqlite3_close_app(ppdb); + free(ppdb); + } +} + +int sqlite3_prepare2(finalizeonce *fdb, const char *zSql, + int nBytes, finalizeonce **ppo, + const char **pzTail) { + + sqlite3_stmt *ppst; + sqlite3 *db; + finalizeonce *newobj; + int res; + + db = (sqlite3 *) fdb->encapobj; + +#ifdef DEBUG_HDBC_SQLITE3 + fprintf(stderr, "\nCalling prepare on %p", db); +#endif + res = sqlite3_prepare(db, zSql, nBytes, &ppst, + pzTail); + /* We don't try to deallocate this in Haskell if there + was an error. */ + if (res != SQLITE_OK) { + if (ppst != NULL) { + sqlite3_finalize(ppst); + } + return res; + + } + + newobj = malloc(sizeof(finalizeonce)); + if (newobj == NULL) { + fprintf(stderr, "\nhdbc sqlite3 internal error: couldn't malloc memory for newobj\n"); + return -999; + } + newobj->encapobj = (void *) ppst; + newobj->isfinalized = 0; + newobj->parent = fdb; + newobj->refcount = 1; + (fdb->refcount)++; + *ppo = newobj; +#ifdef DEBUG_HDBC_SQLITE3 + fprintf(stderr, "\nAllocated stmt at %p %p\n", newobj, newobj->encapobj); +#endif + return res; +} + +int sqlite3_finalize_app(finalizeonce *ppst) { + int res; + if (ppst->isfinalized) { +#ifdef DEBUG_HDBC_SQLITE3 + fprintf(stderr, "\nfinalize_app on already finalized %p\n", ppst); +#endif + return SQLITE_OK; + } +#ifdef DEBUG_HDBC_SQLITE3 + fprintf(stderr, "\nfinalize_app on non-finalized %p\n", ppst); +#endif + res = sqlite3_finalize((sqlite3_stmt *) (ppst->encapobj)); + ppst->isfinalized = 1; + return res; +} + +void sqlite3_finalize_finalizer(finalizeonce *ppst) { +#ifdef DEBUG_HDBC_SQLITE3 + fprintf(stderr, "\nfinalize_finalizer on %p: %d\n", ppst, ppst->isfinalized); +#endif + sqlite3_finalize_app(ppst); + (ppst->refcount)--; /* Not really important since no children use + us */ + /* Now decrement the refcount for the parent */ + (ppst->parent->refcount)--; + sqlite3_conditional_finalizer(ppst->parent); + free(ppst); +} diff --git a/hdbc-sqlite3-helper.h b/hdbc-sqlite3-helper.h new file mode 100644 --- /dev/null +++ b/hdbc-sqlite3-helper.h @@ -0,0 +1,27 @@ +#include + +extern int sqlite3_bind_text2(sqlite3_stmt* a, int b, const char *c, int d); + +/* Clever trick: the obj is the first element in the struct, so the pointer + to the struct is the same as the pointer to the obj. */ + +typedef struct TAG_finalizeonce { + void *encapobj; + int refcount; + int isfinalized; + struct TAG_finalizeonce *parent; +} finalizeonce; + + +extern int sqlite3_open2(const char *filename, finalizeonce **ppo); +extern int sqlite3_close_app(finalizeonce *ppdb); +extern void sqlite3_close_finalizer(finalizeonce *ppdb); +extern void sqlite3_conditional_finalizer(finalizeonce *ppdb); + +extern int sqlite3_prepare2(finalizeonce *fdb, const char *zSql, + int nBytes, finalizeonce **ppo, + const char **pzTail); +extern int sqlite3_finalize_app(finalizeonce *ppst); +extern void sqlite3_finalize_finalizer(finalizeonce *ppst); + + diff --git a/testsrc/COPYING b/testsrc/COPYING new file mode 100644 --- /dev/null +++ b/testsrc/COPYING @@ -0,0 +1,510 @@ + + GNU LESSER GENERAL PUBLIC LICENSE + Version 2.1, February 1999 + + Copyright (C) 1991, 1999 Free Software Foundation, Inc. + 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + +[This is the first released version of the Lesser GPL. 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You can do so by permitting +redistribution under these terms (or, alternatively, under the terms +of the ordinary General Public License). + + To apply these terms, attach the following notices to the library. +It is safest to attach them to the start of each source file to most +effectively convey the exclusion of warranty; and each file should +have at least the "copyright" line and a pointer to where the full +notice is found. + + + + Copyright (C) + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + This library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with this library; if not, write to the Free Software + Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + +Also add information on how to contact you by electronic and paper mail. + +You should also get your employer (if you work as a programmer) or +your school, if any, to sign a "copyright disclaimer" for the library, +if necessary. Here is a sample; alter the names: + + Yoyodyne, Inc., hereby disclaims all copyright interest in the + library `Frob' (a library for tweaking knobs) written by James + Random Hacker. + + , 1 April 1990 + Ty Coon, President of Vice + +That's all there is to it! + + diff --git a/testsrc/COPYRIGHT b/testsrc/COPYRIGHT new file mode 100644 --- /dev/null +++ b/testsrc/COPYRIGHT @@ -0,0 +1,4 @@ +Copyright (c) 2005 John Goerzen + +Please see COPYING for the license. + diff --git a/testsrc/SpecificDB.hs b/testsrc/SpecificDB.hs new file mode 100644 --- /dev/null +++ b/testsrc/SpecificDB.hs @@ -0,0 +1,7 @@ +module SpecificDB where +import Database.HDBC +import Database.HDBC.Sqlite3 +import Test.HUnit + +connectDB = + handleSqlError (connectSqlite3 "testtmp.sql3") diff --git a/testsrc/SpecificDBTests.hs b/testsrc/SpecificDBTests.hs new file mode 100644 --- /dev/null +++ b/testsrc/SpecificDBTests.hs @@ -0,0 +1,11 @@ +module SpecificDBTests where +import Database.HDBC +import Database.HDBC.Sqlite3 +import Test.HUnit +import TestMisc(setup) + +testgetTables = setup $ \dbh -> + do r <- getTables dbh + ["hdbctest2"] @=? r + +tests = TestList [TestLabel "getTables" testgetTables] diff --git a/testsrc/TestMisc.hs b/testsrc/TestMisc.hs new file mode 100644 --- /dev/null +++ b/testsrc/TestMisc.hs @@ -0,0 +1,170 @@ +module TestMisc(tests, setup) where +import Test.HUnit +import Database.HDBC +import TestUtils +import System.IO +import Control.Exception +import Data.Char +import Control.Monad +import qualified Data.Map as Map + +rowdata = + [[SqlInt32 0, toSql "Testing", SqlNull], + [SqlInt32 1, toSql "Foo", SqlInt32 5], + [SqlInt32 2, toSql "Bar", SqlInt32 9]] + +colnames = ["testid", "teststring", "testint"] +alrows :: [[(String, SqlValue)]] +alrows = map (zip colnames) rowdata + +setup f = dbTestCase $ \dbh -> + do run dbh "CREATE TABLE hdbctest2 (testid INTEGER PRIMARY KEY NOT NULL, teststring TEXT, testint INTEGER)" [] + sth <- prepare dbh "INSERT INTO hdbctest2 VALUES (?, ?, ?)" + executeMany sth rowdata + commit dbh + finally (f dbh) + (do run dbh "DROP TABLE hdbctest2" [] + commit dbh + ) + +cloneTest dbh a = + do dbh2 <- clone dbh + finally (handleSqlError (a dbh2)) + (handleSqlError (disconnect dbh2)) + +testgetColumnNames = setup $ \dbh -> + do sth <- prepare dbh "SELECT * from hdbctest2" + execute sth [] + cols <- getColumnNames sth + finish sth + ["testid", "teststring", "testint"] @=? map (map toLower) cols + +testdescribeResult = setup $ \dbh -> when (not ((hdbcDriverName dbh) `elem` + ["sqlite3"])) $ + do sth <- prepare dbh "SELECT * from hdbctest2" + execute sth [] + cols <- describeResult sth + ["testid", "teststring", "testint"] @=? map (map toLower . fst) cols + let coldata = map snd cols + assertBool "r0 type" (colType (coldata !! 0) `elem` + [SqlBigIntT, SqlIntegerT]) + assertBool "r1 type" (colType (coldata !! 1) `elem` + [SqlVarCharT, SqlLongVarCharT]) + assertBool "r2 type" (colType (coldata !! 2) `elem` + [SqlBigIntT, SqlIntegerT]) + finish sth + +testdescribeTable = setup $ \dbh -> when (not ((hdbcDriverName dbh) `elem` + ["sqlite3"])) $ + do cols <- describeTable dbh "hdbctest2" + ["testid", "teststring", "testint"] @=? map (map toLower . fst) cols + let coldata = map snd cols + assertBool "r0 type" (colType (coldata !! 0) `elem` + [SqlBigIntT, SqlIntegerT]) + assertEqual "r0 nullable" (Just False) (colNullable (coldata !! 0)) + assertBool "r1 type" (colType (coldata !! 1) `elem` + [SqlVarCharT, SqlLongVarCharT]) + assertEqual "r1 nullable" (Just True) (colNullable (coldata !! 1)) + assertBool "r2 type" (colType (coldata !! 2) `elem` + [SqlBigIntT, SqlIntegerT]) + assertEqual "r2 nullable" (Just True) (colNullable (coldata !! 2)) + +testquickQuery = setup $ \dbh -> + do results <- quickQuery dbh "SELECT * from hdbctest2 ORDER BY testid" [] + rowdata @=? results + +testfetchRowAL = setup $ \dbh -> + do sth <- prepare dbh "SELECT * from hdbctest2 ORDER BY testid" + execute sth [] + fetchRowAL sth >>= (Just (head alrows) @=?) + fetchRowAL sth >>= (Just (alrows !! 1) @=?) + fetchRowAL sth >>= (Just (alrows !! 2) @=?) + fetchRowAL sth >>= (Nothing @=?) + finish sth + +testfetchRowMap = setup $ \dbh -> + do sth <- prepare dbh "SELECT * from hdbctest2 ORDER BY testid" + execute sth [] + fetchRowMap sth >>= (Just (Map.fromList $ head alrows) @=?) + fetchRowMap sth >>= (Just (Map.fromList $ alrows !! 1) @=?) + fetchRowMap sth >>= (Just (Map.fromList $ alrows !! 2) @=?) + fetchRowMap sth >>= (Nothing @=?) + finish sth + +testfetchAllRowsAL = setup $ \dbh -> + do sth <- prepare dbh "SELECT * from hdbctest2 ORDER BY testid" + execute sth [] + fetchAllRowsAL sth >>= (alrows @=?) + +testfetchAllRowsMap = setup $ \dbh -> + do sth <- prepare dbh "SELECT * from hdbctest2 ORDER BY testid" + execute sth [] + fetchAllRowsMap sth >>= (map (Map.fromList) alrows @=?) + +testexception = setup $ \dbh -> + catchSql (do sth <- prepare dbh "SELECT invalidcol FROM hdbctest2" + execute sth [] + assertFailure "No exception was raised" + ) + (\e -> commit dbh) + +testrowcount = setup $ \dbh -> + do r <- run dbh "UPDATE hdbctest2 SET testint = 25 WHERE testid = 20" [] + assertEqual "UPDATE with no change" 0 r + r <- run dbh "UPDATE hdbctest2 SET testint = 26 WHERE testid = 0" [] + assertEqual "UPDATE with 1 change" 1 r + r <- run dbh "UPDATE hdbctest2 SET testint = 27 WHERE testid <> 0" [] + assertEqual "UPDATE with 2 changes" 2 r + commit dbh + res <- quickQuery dbh "SELECT * from hdbctest2 ORDER BY testid" [] + assertEqual "final results" + [[SqlInt32 0, toSql "Testing", SqlInt32 26], + [SqlInt32 1, toSql "Foo", SqlInt32 27], + [SqlInt32 2, toSql "Bar", SqlInt32 27]] res + +{- Since we might be running against a live DB, we can't look at a specific +list here (though a SpecificDB test case may be able to). We can ensure +that our test table is, or is not, present, as appropriate. -} + +testgetTables1 = setup $ \dbh -> + do r <- getTables dbh + True @=? "hdbctest2" `elem` r + +testgetTables2 = dbTestCase $ \dbh -> + do r <- getTables dbh + False @=? "hdbctest2" `elem` r + +testclone = setup $ \dbho -> cloneTest dbho $ \dbh -> + do results <- quickQuery dbh "SELECT * from hdbctest2 ORDER BY testid" [] + rowdata @=? results + +testnulls = setup $ \dbh -> + do let dn = hdbcDriverName dbh + when (not (dn `elem` ["postgresql", "odbc"])) ( + do sth <- prepare dbh "INSERT INTO hdbctest2 VALUES (?, ?, ?)" + executeMany sth rows + finish sth + res <- quickQuery dbh "SELECT * from hdbctest2 WHERE testid > 99 ORDER BY testid" [] + seq (length res) rows @=? res + ) + where rows = [[SqlInt32 100, SqlString "foo\NULbar", SqlNull], + [SqlInt32 101, SqlString "bar\NUL", SqlNull], + [SqlInt32 102, SqlString "\NUL", SqlNull], + [SqlInt32 103, SqlString "\xFF", SqlNull], + [SqlInt32 104, SqlString "regular", SqlNull]] + + +tests = TestList [TestLabel "getColumnNames" testgetColumnNames, + TestLabel "describeResult" testdescribeResult, + TestLabel "describeTable" testdescribeTable, + TestLabel "quickQuery" testquickQuery, + TestLabel "fetchRowAL" testfetchRowAL, + TestLabel "fetchRowMap" testfetchRowMap, + TestLabel "fetchAllRowsAL" testfetchAllRowsAL, + TestLabel "fetchAllRowsMap" testfetchAllRowsMap, + TestLabel "sql exception" testexception, + TestLabel "clone" testclone, + TestLabel "update rowcount" testrowcount, + TestLabel "get tables1" testgetTables1, + TestLabel "get tables2" testgetTables2, + TestLabel "nulls" testnulls] diff --git a/testsrc/TestSbasics.hs b/testsrc/TestSbasics.hs new file mode 100644 --- /dev/null +++ b/testsrc/TestSbasics.hs @@ -0,0 +1,149 @@ +module TestSbasics(tests) where +import Test.HUnit +import Database.HDBC +import TestUtils +import System.IO +import Control.Exception + +openClosedb = sqlTestCase $ + do dbh <- connectDB + disconnect dbh + +multiFinish = dbTestCase (\dbh -> + do sth <- prepare dbh "SELECT 1 + 1" + sExecute sth [] + finish sth + finish sth + finish sth + ) + +basicQueries = dbTestCase (\dbh -> + do sth <- prepare dbh "SELECT 1 + 1" + sExecute sth [] + sFetchRow sth >>= (assertEqual "row 1" (Just [Just "2"])) + sFetchRow sth >>= (assertEqual "last row" Nothing) + ) + +createTable = dbTestCase (\dbh -> + do sRun dbh "CREATE TABLE hdbctest1 (testname VARCHAR(20), testid INTEGER, testint INTEGER, testtext TEXT)" [] + commit dbh + ) + +dropTable = dbTestCase (\dbh -> + do sRun dbh "DROP TABLE hdbctest1" [] + commit dbh + ) + +runReplace = dbTestCase (\dbh -> + do sRun dbh "INSERT INTO hdbctest1 VALUES (?, ?, ?, ?)" r1 + sRun dbh "INSERT INTO hdbctest1 VALUES (?, ?, 2, ?)" r2 + commit dbh + sth <- prepare dbh "SELECT * FROM hdbctest1 WHERE testname = 'runReplace' ORDER BY testid" + sExecute sth [] + sFetchRow sth >>= (assertEqual "r1" (Just r1)) + sFetchRow sth >>= (assertEqual "r2" (Just [Just "runReplace", Just "2", + Just "2", Nothing])) + sFetchRow sth >>= (assertEqual "lastrow" Nothing) + ) + where r1 = [Just "runReplace", Just "1", Just "1234", Just "testdata"] + r2 = [Just "runReplace", Just "2", Nothing] + +executeReplace = dbTestCase (\dbh -> + do sth <- prepare dbh "INSERT INTO hdbctest1 VALUES ('executeReplace',?,?,?)" + sExecute sth [Just "1", Just "1234", Just "Foo"] + sExecute sth [Just "2", Nothing, Just "Bar"] + commit dbh + sth <- prepare dbh "SELECT * FROM hdbctest1 WHERE testname = ? ORDER BY testid" + sExecute sth [Just "executeReplace"] + sFetchRow sth >>= (assertEqual "r1" + (Just $ map Just ["executeReplace", "1", "1234", + "Foo"])) + sFetchRow sth >>= (assertEqual "r2" + (Just [Just "executeReplace", Just "2", Nothing, + Just "Bar"])) + sFetchRow sth >>= (assertEqual "lastrow" Nothing) + ) + +testExecuteMany = dbTestCase (\dbh -> + do sth <- prepare dbh "INSERT INTO hdbctest1 VALUES ('multi',?,?,?)" + sExecuteMany sth rows + commit dbh + sth <- prepare dbh "SELECT testid, testint, testtext FROM hdbctest1 WHERE testname = 'multi'" + sExecute sth [] + mapM_ (\r -> sFetchRow sth >>= (assertEqual "" (Just r))) rows + sFetchRow sth >>= (assertEqual "lastrow" Nothing) + ) + where rows = [map Just ["1", "1234", "foo"], + map Just ["2", "1341", "bar"], + [Just "3", Nothing, Nothing]] + +testsFetchAllRows = dbTestCase (\dbh -> + do sth <- prepare dbh "INSERT INTO hdbctest1 VALUES ('sFetchAllRows', ?, NULL, NULL)" + sExecuteMany sth rows + commit dbh + sth <- prepare dbh "SELECT testid FROM hdbctest1 WHERE testname = 'sFetchAllRows' ORDER BY testid" + sExecute sth [] + results <- sFetchAllRows sth + assertEqual "" rows results + ) + where rows = map (\x -> [Just . show $ x]) [1..9] + +basicTransactions = dbTestCase (\dbh -> + do assertBool "Connected database does not support transactions; skipping transaction test" (dbTransactionSupport dbh) + sth <- prepare dbh "INSERT INTO hdbctest1 VALUES ('basicTransactions', ?, NULL, NULL)" + sExecute sth [Just "0"] + commit dbh + qrysth <- prepare dbh "SELECT testid FROM hdbctest1 WHERE testname = 'basicTransactions' ORDER BY testid" + sExecute qrysth [] + sFetchAllRows qrysth >>= (assertEqual "initial commit" [[Just "0"]]) + + -- Now try a rollback + sExecuteMany sth rows + rollback dbh + sExecute qrysth [] + sFetchAllRows qrysth >>= (assertEqual "rollback" [[Just "0"]]) + + -- Now try another commit + sExecuteMany sth rows + commit dbh + sExecute qrysth [] + sFetchAllRows qrysth >>= (assertEqual "final commit" ([Just "0"]:rows)) + ) + where rows = map (\x -> [Just . show $ x]) [1..9] + +testWithTransaction = dbTestCase (\dbh -> + do assertBool "Connected database does not support transactions; skipping transaction test" (dbTransactionSupport dbh) + sth <- prepare dbh "INSERT INTO hdbctest1 VALUES ('withTransaction', ?, NULL, NULL)" + sExecute sth [Just "0"] + commit dbh + qrysth <- prepare dbh "SELECT testid FROM hdbctest1 WHERE testname = 'withTransaction' ORDER BY testid" + sExecute qrysth [] + sFetchAllRows qrysth >>= (assertEqual "initial commit" [[Just "0"]]) + + -- Let's try a rollback. + try $ withTransaction dbh (\_ -> do sExecuteMany sth rows + fail "Foo") + sExecute qrysth [] + sFetchAllRows qrysth >>= (assertEqual "rollback" [[Just "0"]]) + + -- And now a commit. + withTransaction dbh (\_ -> sExecuteMany sth rows) + sExecute qrysth [] + sFetchAllRows qrysth >>= (assertEqual "final commit" ([Just "0"]:rows)) + ) + where rows = map (\x -> [Just . show $ x]) [1..9] + +tests = TestList + [ + TestLabel "openClosedb" openClosedb, + TestLabel "multiFinish" multiFinish, + TestLabel "basicQueries" basicQueries, + TestLabel "createTable" createTable, + TestLabel "runReplace" runReplace, + TestLabel "executeReplace" executeReplace, + TestLabel "executeMany" testExecuteMany, + TestLabel "sFetchAllRows" testsFetchAllRows, + TestLabel "basicTransactions" basicTransactions, + TestLabel "withTransaction" testWithTransaction, + TestLabel "dropTable" dropTable + ] diff --git a/testsrc/TestUtils.hs b/testsrc/TestUtils.hs new file mode 100644 --- /dev/null +++ b/testsrc/TestUtils.hs @@ -0,0 +1,25 @@ +module TestUtils(connectDB, sqlTestCase, dbTestCase, printDBInfo) where +import Database.HDBC +import Test.HUnit +import Control.Exception +import SpecificDB(connectDB) + +sqlTestCase a = + TestCase (handleSqlError a) + +dbTestCase a = + TestCase (do dbh <- connectDB + finally (handleSqlError (a dbh)) + (handleSqlError (disconnect dbh)) + ) + +printDBInfo = handleSqlError $ + do dbh <- connectDB + putStrLn "+-------------------------------------------------------------------------" + putStrLn $ "| Testing HDBC database module: " ++ hdbcDriverName dbh ++ + ", bound to client: " ++ hdbcClientVer dbh + putStrLn $ "| Proxied driver: " ++ proxiedClientName dbh ++ + ", bound to version: " ++ proxiedClientVer dbh + putStrLn $ "| Connected to server version: " ++ dbServerVer dbh + putStrLn "+-------------------------------------------------------------------------\n" + disconnect dbh diff --git a/testsrc/Testbasics.hs b/testsrc/Testbasics.hs new file mode 100644 --- /dev/null +++ b/testsrc/Testbasics.hs @@ -0,0 +1,155 @@ +module Testbasics(tests) where +import Test.HUnit +import Database.HDBC +import TestUtils +import System.IO +import Control.Exception + +openClosedb = sqlTestCase $ + do dbh <- connectDB + disconnect dbh + +multiFinish = dbTestCase (\dbh -> + do sth <- prepare dbh "SELECT 1 + 1" + r <- execute sth [] + assertEqual "basic count" 0 r + finish sth + finish sth + finish sth + ) + +basicQueries = dbTestCase (\dbh -> + do sth <- prepare dbh "SELECT 1 + 1" + execute sth [] >>= (0 @=?) + r <- fetchAllRows sth + assertEqual "converted from" [["2"]] (map (map fromSql) r) + assertEqual "int32 compare" [[SqlInt32 2]] r + assertEqual "iToSql compare" [[iToSql 2]] r + assertEqual "num compare" [[toSql (2::Int)]] r + assertEqual "nToSql compare" [[nToSql (2::Int)]] r + assertEqual "string compare" [[SqlString "2"]] r + ) + +createTable = dbTestCase (\dbh -> + do run dbh "CREATE TABLE hdbctest1 (testname VARCHAR(20), testid INTEGER, testint INTEGER, testtext TEXT)" [] + commit dbh + ) + +dropTable = dbTestCase (\dbh -> + do run dbh "DROP TABLE hdbctest1" [] + commit dbh + ) + +runReplace = dbTestCase (\dbh -> + do r <- run dbh "INSERT INTO hdbctest1 VALUES (?, ?, ?, ?)" r1 + assertEqual "insert retval" 1 r + run dbh "INSERT INTO hdbctest1 VALUES (?, ?, ?, ?)" r2 + commit dbh + sth <- prepare dbh "SELECT * FROM hdbctest1 WHERE testname = 'runReplace' ORDER BY testid" + rv2 <- execute sth [] + assertEqual "select retval" 0 rv2 + r <- fetchAllRows sth + assertEqual "" [r1, r2] r + ) + where r1 = [toSql "runReplace", iToSql 1, iToSql 1234, SqlString "testdata"] + r2 = [toSql "runReplace", iToSql 2, iToSql 2, SqlNull] + +executeReplace = dbTestCase (\dbh -> + do sth <- prepare dbh "INSERT INTO hdbctest1 VALUES ('executeReplace',?,?,?)" + execute sth [iToSql 1, iToSql 1234, toSql "Foo"] + execute sth [SqlInt32 2, SqlNull, toSql "Bar"] + commit dbh + sth <- prepare dbh "SELECT * FROM hdbctest1 WHERE testname = ? ORDER BY testid" + execute sth [SqlString "executeReplace"] + r <- fetchAllRows sth + assertEqual "result" + [[toSql "executeReplace", iToSql 1, toSql "1234", + toSql "Foo"], + [toSql "executeReplace", iToSql 2, SqlNull, + toSql "Bar"]] + r + ) + +testExecuteMany = dbTestCase (\dbh -> + do sth <- prepare dbh "INSERT INTO hdbctest1 VALUES ('multi',?,?,?)" + executeMany sth rows + commit dbh + sth <- prepare dbh "SELECT testid, testint, testtext FROM hdbctest1 WHERE testname = 'multi'" + execute sth [] + r <- fetchAllRows sth + assertEqual "" rows r + ) + where rows = [map toSql ["1", "1234", "foo"], + map toSql ["2", "1341", "bar"], + [toSql "3", SqlNull, SqlNull]] + +testFetchAllRows = dbTestCase (\dbh -> + do sth <- prepare dbh "INSERT INTO hdbctest1 VALUES ('sFetchAllRows', ?, NULL, NULL)" + executeMany sth rows + commit dbh + sth <- prepare dbh "SELECT testid FROM hdbctest1 WHERE testname = 'sFetchAllRows' ORDER BY testid" + execute sth [] + results <- fetchAllRows sth + assertEqual "" rows results + ) + where rows = map (\x -> [iToSql x]) [1..9] + +basicTransactions = dbTestCase (\dbh -> + do assertBool "Connected database does not support transactions; skipping transaction test" (dbTransactionSupport dbh) + sth <- prepare dbh "INSERT INTO hdbctest1 VALUES ('basicTransactions', ?, NULL, NULL)" + execute sth [iToSql 0] + commit dbh + qrysth <- prepare dbh "SELECT testid FROM hdbctest1 WHERE testname = 'basicTransactions' ORDER BY testid" + execute qrysth [] + fetchAllRows qrysth >>= (assertEqual "initial commit" [[toSql "0"]]) + + -- Now try a rollback + executeMany sth rows + rollback dbh + execute qrysth [] + fetchAllRows qrysth >>= (assertEqual "rollback" [[toSql "0"]]) + + -- Now try another commit + executeMany sth rows + commit dbh + execute qrysth [] + fetchAllRows qrysth >>= (assertEqual "final commit" ([SqlString "0"]:rows)) + ) + where rows = map (\x -> [iToSql $ x]) [1..9] + +testWithTransaction = dbTestCase (\dbh -> + do assertBool "Connected database does not support transactions; skipping transaction test" (dbTransactionSupport dbh) + sth <- prepare dbh "INSERT INTO hdbctest1 VALUES ('withTransaction', ?, NULL, NULL)" + execute sth [toSql "0"] + commit dbh + qrysth <- prepare dbh "SELECT testid FROM hdbctest1 WHERE testname = 'withTransaction' ORDER BY testid" + execute qrysth [] + fetchAllRows qrysth >>= (assertEqual "initial commit" [[toSql "0"]]) + + -- Let's try a rollback. + try $ withTransaction dbh (\_ -> do executeMany sth rows + fail "Foo") + execute qrysth [] + fetchAllRows qrysth >>= (assertEqual "rollback" [[SqlString "0"]]) + + -- And now a commit. + withTransaction dbh (\_ -> executeMany sth rows) + execute qrysth [] + fetchAllRows qrysth >>= (assertEqual "final commit" ([iToSql 0]:rows)) + ) + where rows = map (\x -> [iToSql x]) [1..9] + +tests = TestList + [ + TestLabel "openClosedb" openClosedb, + TestLabel "multiFinish" multiFinish, + TestLabel "basicQueries" basicQueries, + TestLabel "createTable" createTable, + TestLabel "runReplace" runReplace, + TestLabel "executeReplace" executeReplace, + TestLabel "executeMany" testExecuteMany, + TestLabel "sFetchAllRows" testFetchAllRows, + TestLabel "basicTransactions" basicTransactions, + TestLabel "withTransaction" testWithTransaction, + TestLabel "dropTable" dropTable + ] diff --git a/testsrc/Tests.hs b/testsrc/Tests.hs new file mode 100644 --- /dev/null +++ b/testsrc/Tests.hs @@ -0,0 +1,32 @@ +{- arch-tag: Tests main file +Copyright (C) 2004-2005 John Goerzen + +This program is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2 of the License, or +(at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with this program; if not, write to the Free Software +Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA +-} + +module Tests(tests) where +import Test.HUnit +import qualified Testbasics +import qualified TestSbasics +import qualified SpecificDBTests +import qualified TestMisc + +test1 = TestCase ("x" @=? "x") + +tests = TestList [TestLabel "test1" test1, + TestLabel "String basics" TestSbasics.tests, + TestLabel "SqlValue basics" Testbasics.tests, + TestLabel "SpecificDB" SpecificDBTests.tests, + TestLabel "Misc tests" TestMisc.tests] diff --git a/testsrc/runtests.hs b/testsrc/runtests.hs new file mode 100644 --- /dev/null +++ b/testsrc/runtests.hs @@ -0,0 +1,27 @@ +{- arch-tag: Test runner +Copyright (C) 2004 John Goerzen + +This program is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2 of the License, or +(at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with this program; if not, write to the Free Software +Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA +-} + +module Main where + +import Test.HUnit +import Tests +import TestUtils + +main = do printDBInfo + runTestTT tests +