{-# LANGUAGE TemplateHaskell #-}
{-# LANGUAGE TypeFamilies #-}
--- | Parse TSN XML for the DTD "Odds_XML.dtd". Each document contains
--- a root element \<message\> that contains a bunch of other
--- unorganized crap.
+-- | Parse TSN XML for the DTD \"Odds_XML.dtd\". Each document
+-- contains a root element \<message\> that contains a bunch of
+-- other... disorganized... information.
--
module TSN.XML.Odds (
+ dtd,
pickle_message,
-- * Tests
odds_tests,
import Database.Groundhog (
(=.),
(==.),
+ countAll,
+ deleteAll,
insert_,
migrate,
+ runMigration,
+ silentMigrationLogger,
update )
import Database.Groundhog.Core ( DefaultKey )
+import Database.Groundhog.Generic ( runDbConn )
+import Database.Groundhog.Sqlite ( withSqliteConn )
import Database.Groundhog.TH (
groundhog,
mkPersist )
FromXmlFk(..),
ToDb(..),
pickle_unpickle,
- unpickleable )
+ unpickleable,
+ unsafe_unpickle )
+
+
+-- | The DTD to which this module corresponds. Used to invoke dbimport.
+--
+dtd :: String
+dtd = "Odds_XML.dtd"
--
-- | The casinos should have their own table, but the lines don't
--- belong in that table (there should be another table joining the
--- casinos and the thing the lines are for together.)
+-- belong in that table (there is a separate table for
+-- 'OddsGameLine' which associates the two).
--
--- We drop the 'Game' prefix because the Casinos really aren't
+-- We drop the \"Game\" prefix because the casinos really aren't
-- children of the games; the XML just makes it seem that way.
--
data OddsCasino =
instance FromXml OddsGameCasinoXml where
-- | We convert from XML to the database by dropping the line field.
+ --
from_xml OddsGameCasinoXml{..} =
OddsCasino {
casino_client_id = xml_casino_client_id,
casino_name = xml_casino_name }
--- | This allows us to call 'insert_xml' on an 'OddsGameCasinoXml'
--- without first converting it to the database representation.
+-- | This allows us to insert the XML representation 'OddsGameCasinoXml'
+-- directly.
+--
instance XmlImport OddsGameCasinoXml
db_abbr = xml_home_abbr,
db_team_name = xml_home_team_name }
--- | XmlImport allows us to call 'insert_xml' directly on an
--- 'OddsGameHomeTeamXml' without explicitly converting it to the
--- associated database type.
+-- | This allows us to insert the XML representation
+-- 'OddsGameHomeTeamXml' directly.
--
instance XmlImport OddsGameHomeTeamXml where
xml_away_abbr
xml_away_team_name
--- | XmlImport allows us to call 'insert_xml' directly on an
--- 'OddsGameAwayTeamXml' without explicitly converting it to the
--- associated database type.
+-- | This allows us to insert the XML representation
+-- 'OddsGameAwayTeamXml' directly.
--
instance XmlImport OddsGameAwayTeamXml where
-- * OddsGame_OddsGameTeam
-- | Database mapping between games and their home/away teams.
+--
data OddsGame_OddsGameTeam =
OddsGame_OddsGameTeam {
ogogt_odds_games_id :: DefaultKey OddsGame,
-- | This database representation of the casino lines can't be
-- constructed from the one in the XML. The casinos within
--- Game>HomeTeam, Game>AwayTeam, and Game>Over_Under are all more or
+-- Game-\>HomeTeam, Game-\>AwayTeam, and Game-\>Over_Under are all more or
-- less the same. We don't need a bajillion different tables to
-- store that, just one tying the casino/game pair to the three
-- lines.
db_game_home_team_rotation_number :: Int }
--- | XML representation of a game.
+-- | XML representation of an 'OddsGame'.
--
data OddsGameXml =
OddsGameXml {
type Db OddsGameXml = OddsGame
instance FromXmlFk OddsGameXml where
+ -- | Each 'OddsGameXml' is contained in an 'Odds'. In other words
+ -- the foreign key for 'OddsGame' points to an 'Odds'.
+ --
type Parent OddsGameXml = Odds
-- | To convert from the XML representation to the database one, we
db_game_home_team_rotation_number =
(xml_home_rotation_number xml_game_home_team) }
--- | This lets us call 'insert_xml_fk' directly on an 'OddsGameXml'
--- without converting it to the database representation explicitly.
+-- | This lets us insert the XML representation 'OddsGameXml' directly.
--
instance XmlImportFk OddsGameXml
-- | This is our best guess at what occurs in the Odds_XML
-- documents. It looks like each consecutive set of games can
--- optionally have some notes appear before it. Each "note" comes as
--- its own <Notes>...</Notes> element.
+-- optionally have some notes appear before it. Each \"note\" comes
+-- as its own \<Notes\>...\</Notes\> element.
--
-- The notes are ignored completely in the database; we only bother
-- with them to ensure that we're (un)pickling correctly.
--
--- We can't group the notes with a "set" of 'OddsGame's, because that
--- leads to ambiguity in parsing. Since we're going to ignore the
--- notes anyway, we just stick them with an arbitrary game. C'est la
--- vie.
+-- We can't group the notes with a \"set\" of 'OddsGame's, because
+-- that leads to ambiguity in parsing. Since we're going to ignore
+-- the notes anyway, we just stick them with an arbitrary
+-- game. C'est la vie.
--
data OddsGameWithNotes =
OddsGameWithNotes {
-- * Odds/Message
--- | Database and representation of the top-level Odds object (a
--- 'Message').
+-- | Database representation of a 'Message'.
+--
data Odds =
Odds {
db_xml_file_id :: Int,
-- | The XML representation of 'Odds'.
+--
data Message =
Message {
xml_xml_file_id :: Int,
db_line_time = xml_line_time,
db_time_stamp = xml_time_stamp }
--- | This lets us call 'insert_xml' on a Message directly, without
--- having to convert it to its database representation explicitly.
+-- | This lets us insert the XML representation 'Message' directly.
--
instance XmlImport Message
- name: OddsGameLine
fields:
- name: ogl_odds_games_id
- references:
+ reference:
onDelete: cascade
- name: ogl_odds_casinos_id
- references:
+ reference:
onDelete: cascade
- entity: OddsGame_OddsGameTeam
odds_tests =
testGroup
"Odds tests"
- [ test_pickle_of_unpickle_is_identity,
+ [ test_on_delete_cascade,
+ test_pickle_of_unpickle_is_identity,
test_unpickle_succeeds ]
actual <- unpickleable path pickle_message
let expected = True
actual @?= expected
+
+
+-- | Make sure everything gets deleted when we delete the top-level
+-- record.
+--
+test_on_delete_cascade :: TestTree
+test_on_delete_cascade = testGroup "cascading delete tests"
+ [ check "deleting odds deletes its children"
+ "test/xml/Odds_XML.xml"
+ 13 -- 5 casinos, 8 teams
+ ,
+
+ check "deleting odds deletes its children (non-int team_id)"
+ "test/xml/Odds_XML-noninteger-team-id.xml"
+ 51 -- 5 casinos, 46 teams
+ ,
+
+ check "deleting odds deleted its children (positive(+) line)"
+ "test/xml/Odds_XML-positive-line.xml"
+ 17 -- 5 casinos, 12 teams
+ ,
+
+ check "deleting odds deleted its children (large file)"
+ "test/xml/Odds_XML-largefile.xml"
+ 189 -- 5 casinos, 184 teams
+ ]
+ where
+ check desc path expected = testCase desc $ do
+ odds <- unsafe_unpickle path pickle_message
+ let a = undefined :: Odds
+ let b = undefined :: OddsCasino
+ let c = undefined :: OddsGameTeam
+ let d = undefined :: OddsGame
+ let e = undefined :: OddsGame_OddsGameTeam
+ let f = undefined :: OddsGameLine
+ actual <- withSqliteConn ":memory:" $ runDbConn $ do
+ runMigration silentMigrationLogger $ do
+ migrate a
+ migrate b
+ migrate c
+ migrate d
+ migrate e
+ migrate f
+ _ <- dbimport odds
+ deleteAll a
+ count_a <- countAll a
+ count_b <- countAll b
+ count_c <- countAll c
+ count_d <- countAll d
+ count_e <- countAll e
+ count_f <- countAll f
+ return $ sum [count_a, count_b, count_c,
+ count_d, count_e, count_f ]
+ actual @?= expected
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