import Control.Arrow ( (&&&), arr, returnA )
import Control.Monad ( when )
-import Control.Monad.IO.Class ( liftIO )
-import Database.Groundhog (
- defaultMigrationLogger,
- insert,
- migrate,
- runMigration )
-import Database.Groundhog.Core ( PersistEntity )
+import Control.Monad.IO.Class ( MonadIO, liftIO )
import Database.Groundhog.Generic ( runDbConn )
import Database.Groundhog.Sqlite (
withSqliteConn )
import Database.Groundhog.Postgresql (
withPostgresqlConn )
import Data.Monoid ( (<>) )
+import Network.Services.TSN.Logging ( init_logging )
import System.Console.CmdArgs ( def )
import System.Exit ( exitWith, ExitCode (ExitFailure) )
import System.IO.Error ( catchIOError )
import Text.XML.HXT.Core (
ArrowXml,
IOStateArrow,
- XmlPickler,
XmlTree,
(>>>),
(/>),
getText,
hasName,
readDocument,
- runX,
- unpickleDoc,
- xpickle )
+ runX )
import Backend ( Backend(..) )
import CommandLine ( get_args )
import Configuration ( Configuration(..), merge_optional )
import ConnectionString ( ConnectionString(..) )
import ExitCodes ( exit_no_xml_files )
-import Network.Services.TSN.Logging ( init_logging )
import qualified OptionalConfiguration as OC (
OptionalConfiguration ( xml_files ),
from_rc )
import Network.Services.TSN.Report (
report_info,
report_error )
-import qualified TSN.Injuries as Injuries (
- Listing,
- Message ( listings ) )
-import qualified TSN.InjuriesDetail as InjuriesDetail (
- Listing ( player_listings ),
- Message ( listings ),
- PlayerListing )
+import TSN.DbImport
+import qualified TSN.Injuries as Injuries ( Listing )
+import qualified TSN.InjuriesDetail as InjuriesDetail ( PlayerListing )
import qualified TSN.News as News ( Message )
import Xml ( parse_opts )
--- | We put the 'Configuration' and 'XmlTree' arguments last so that
--- it's easy to eta reduce all of the import_foo functions that call
--- this.
---
-import_generic :: (XmlPickler a, PersistEntity b)
- => b -- ^ Dummy Listing instance needed for 'migrate'
- -> (a -> [b]) -- ^ listings getter
- -> Configuration
- -> XmlTree
- -> IO (Maybe Int) -- ^ Return the number of records inserted.
-import_generic dummy g cfg xml
- | backend cfg == Postgres = withPostgresqlConn cs go
- | otherwise = withSqliteConn cs go
- where
- -- | Pull the real connection String out of the configuration.
- cs :: String
- cs = get_connection_string $ connection_string cfg
-
- -- Needs NoMonomorphismRestriction to be allowed to return
- -- different types in the two cases above.
- go = runDbConn $ do
- runMigration defaultMigrationLogger $ migrate dummy
- let root_element = unpickleDoc xpickle xml
- case root_element of
- Nothing -> do
- let msg = "Could not unpickle document in import_generic."
- liftIO $ report_error msg
- return Nothing
- Just elt -> do
- ids <- mapM insert (g elt)
- return $ Just (length ids)
-
-
-
--- | Import TSN.News from an 'XmlTree'.
-import_news :: Configuration -> XmlTree -> IO (Maybe Int)
-import_news =
- import_generic
- (undefined :: News.Message)
- id
-
--- | Import TSN.Injuries from an 'XmlTree'.
-import_injuries :: Configuration -> XmlTree -> IO (Maybe Int)
-import_injuries =
- import_generic
- (undefined :: Injuries.Listing)
- Injuries.listings
-
--- | Import TSN.InjuriesDetail from an 'XmlTree'.
-import_injuries_detail :: Configuration -> XmlTree -> IO (Maybe Int)
-import_injuries_detail =
- import_generic
- (undefined :: InjuriesDetail.PlayerListing)
- ( (concatMap InjuriesDetail.player_listings) . InjuriesDetail.listings)
import_file :: Configuration -> FilePath -> IO ()
import_file cfg path = do
-- | Takes a 'Doctype', 'XmlTree' pair and uses the 'Doctype' to
-- determine which function to call on the 'XmlTree'.
import_with_dtd :: (String, XmlTree) -> IO (Maybe Int)
- import_with_dtd (dtd,xml)
- | dtd == "injuriesxml.dtd" = import_injuries cfg xml
- | dtd == "Injuries_Detail_XML.dtd" = import_injuries_detail cfg xml
- | dtd == "newsxml.dtd" = import_news cfg xml
- | otherwise = do
- report_info $ "Unrecognized DTD in " ++ path ++ ": " ++ dtd ++ "."
- return Nothing
+ import_with_dtd (dtd,xml) =
+ -- We need NoMonomorphismRestriction here.
+ if backend cfg == Postgres
+ then withPostgresqlConn cs $ runDbConn $ importer xml
+ else withSqliteConn cs $ runDbConn $ importer xml
+ where
+ -- | Pull the real connection String out of the configuration.
+ cs :: String
+ cs = get_connection_string $ connection_string cfg
+
+ importer
+ | dtd == "injuriesxml.dtd" =
+ dbimport (undefined :: Injuries.Listing)
+
+ | dtd == "Injuries_Detail_XML.dtd" =
+ dbimport (undefined :: InjuriesDetail.PlayerListing)
+
+ | dtd == "newsxml.dtd" =
+ dbimport (undefined :: News.Message)
+
+ | otherwise = \_ -> do -- Dummy arg simplifies the other cases.
+ let errmsg = "Unrecognized DTD in " ++ path ++ ": " ++ dtd ++ "."
+ liftIO $ report_info errmsg
+ return Nothing
+
+
main :: IO ()
main = do