XML/Odds.hs

   1 {-# LANGUAGE DeriveDataTypeable #-}
   2 {-# LANGUAGE FlexibleInstances #-}
   3 {-# LANGUAGE GADTs #-}
   4 {-# LANGUAGE QuasiQuotes #-}
   5 {-# LANGUAGE RecordWildCards #-}
   6 {-# LANGUAGE TemplateHaskell #-}
   7 {-# LANGUAGE TypeFamilies #-}
   8
   9 -- | Parse TSN XML for the DTD \"Odds_XML.dtd\". Each document
  10 --   contains a root element \<message\> that contains a bunch of
  11 --   other... disorganized... information.
  12 --
  13 module TSN.XML.Odds (
  14   dtd,
  15   pickle_message,
  16   -- * Tests
  17   odds_tests,
  18   -- * WARNING: these are private but exported to silence warnings
  19   OddsCasinoConstructor(..),
  20   OddsConstructor(..),
  21   OddsGameConstructor(..),
  22   OddsGameLineConstructor(..) )
  23 where
  24
  25 -- System imports.
  26 import Control.Applicative ( (<$>) )
  27 import Control.Monad ( forM_, join )
  28 import Data.Time ( UTCTime(..) )
  29 import Data.Tuple.Curry ( uncurryN )
  30 import Database.Groundhog (
  31   (=.),
  32   (==.),
  33   countAll,
  34   deleteAll,
  35   insert_,
  36   migrate,
  37   runMigration,
  38   silentMigrationLogger,
  39   update )
  40 import Database.Groundhog.Core ( DefaultKey )
  41 import Database.Groundhog.Generic ( runDbConn )
  42 import Database.Groundhog.Sqlite ( withSqliteConn )
  43 import Database.Groundhog.TH (
  44   groundhog,
  45   mkPersist )
  46 import Test.Tasty ( TestTree, testGroup )
  47 import Test.Tasty.HUnit ( (@?=), testCase )
  48 import Text.Read ( readMaybe )
  49 import Text.XML.HXT.Core (
  50   PU,
  51   xp6Tuple,
  52   xp8Tuple,
  53   xpAttr,
  54   xpElem,
  55   xpInt,
  56   xpList,
  57   xpOption,
  58   xpPair,
  59   xpText,
  60   xpTriple,
  61   xpWrap )
  62
  63 -- Local imports.
  64 import TSN.Codegen (
  65   tsn_codegen_config )
  66 import TSN.DbImport ( DbImport(..), ImportResult(..), run_dbmigrate )
  67 import TSN.Picklers ( xp_date_padded, xp_time, xp_time_stamp )
  68 import TSN.Team ( FromXmlFkTeams(..), Team(..) )
  69 import TSN.XmlImport ( XmlImport(..), XmlImportFkTeams(..) )
  70 import Xml (
  71   Child(..),
  72   FromXml(..),
  73   ToDb(..),
  74   pickle_unpickle,
  75   unpickleable,
  76   unsafe_unpickle )
  77
  78
  79 -- | The DTD to which this module corresponds. Used to invoke dbimport.
  80 --
  81 dtd :: String
  82 dtd = "Odds_XML.dtd"
  83
  84
  85 --
  86 -- DB/XML data types
  87 --
  88
  89 -- * OddsGameCasino/OddsGameCasinoXml
  90
  91
  92 -- | The casinos should have their own table, but the lines don't
  93 --   belong in that table (there is a separate table for
  94 --   'OddsGameLine' which associates the two).
  95 --
  96 --   We drop the \"Game\" prefix because the casinos really aren't
  97 --   children of the games; the XML just makes it seem that way.
  98 --
  99 data OddsCasino =
 100   OddsCasino {
 101     casino_client_id :: Int,
 102     casino_name :: String }
 103   deriving (Eq, Show)
 104
 105
 106 -- | The home/away lines are 'Double's, but the over/under lines are
 107 --   textual. If we want to use one data type for both, we have to go
 108 --   with a 'String' and then attempt to 'read' a 'Double' later when we
 109 --   go to insert the thing.
 110 --
 111 data OddsGameCasinoXml =
 112   OddsGameCasinoXml {
 113     xml_casino_client_id :: Int,
 114     xml_casino_name      :: String,
 115     xml_casino_line      :: Maybe String }
 116   deriving (Eq, Show)
 117
 118
 119 -- | Try to get a 'Double' out of the 'xml_casino_line' which is a
 120 --   priori textual (because it might be an over/under line).
 121 --
 122 home_away_line :: OddsGameCasinoXml -> Maybe Double
 123 home_away_line = join . (fmap readMaybe) . xml_casino_line
 124
 125
 126
 127 instance ToDb OddsGameCasinoXml where
 128   -- | The database representation of an 'OddsGameCasinoXml' is an
 129   --   'OddsCasino'.
 130   --
 131   type Db OddsGameCasinoXml = OddsCasino
 132
 133
 134 instance FromXml OddsGameCasinoXml where
 135   -- | We convert from XML to the database by dropping the line field.
 136   --
 137   from_xml OddsGameCasinoXml{..} =
 138     OddsCasino {
 139       casino_client_id = xml_casino_client_id,
 140       casino_name      = xml_casino_name }
 141
 142
 143 -- | This allows us to insert the XML representation 'OddsGameCasinoXml'
 144 --   directly.
 145 --
 146 instance XmlImport OddsGameCasinoXml
 147
 148
 149 -- * OddsGameTeamXml / OddsGameTeamStarterXml
 150
 151 -- | The XML representation of a \"starter\". It contains both an ID
 152 --   and a name. The ID does not appear to be optional, but the name
 153 --   can be absent. When the name is absent, the ID has always been
 154 --   set to \"0\". This occurs even though the entire starter element
 155 --   is optional (see 'OddsGameTeamXml' below).
 156 --
 157 data OddsGameTeamStarterXml =
 158   OddsGameTeamStarterXml {
 159     xml_starter_id :: Int,
 160     xml_starter_name :: Maybe String }
 161   deriving (Eq, Show)
 162
 163
 164 -- | The XML representation of a \<HomeTeam\> or \<AwayTeam\>, as
 165 --   found in \<Game\>s. We can't use the 'Team' representation
 166 --   directly because there are some other fields we need to parse.
 167 --
 168 data OddsGameTeamXml =
 169   OddsGameTeamXml {
 170     xml_team_id         :: String, -- ^ The home/away team IDs
 171                                    --   are three characters but
 172                                    --   Postgres imposes no
 173                                    --   performance penalty on
 174                                    --   lengthless text fields,
 175                                    --   so we ignore the probable
 176                                    --   upper bound of three
 177                                    --   characters.
 178     xml_team_rotation_number :: Maybe Int,
 179     xml_team_abbr            :: String,
 180     xml_team_name            :: String,
 181     xml_team_starter         :: Maybe OddsGameTeamStarterXml,
 182     xml_team_casinos         :: [OddsGameCasinoXml] }
 183   deriving (Eq, Show)
 184
 185 instance ToDb OddsGameTeamXml where
 186   -- | The database representation of an 'OddsGameTeamXml' is an
 187   --   'OddsGameTeam'.
 188   --
 189   type Db OddsGameTeamXml = Team
 190
 191 instance FromXml OddsGameTeamXml where
 192   -- | We convert from XML to the database by dropping the lines and
 193   --   rotation number (which are specific to the games, not the teams
 194   --   themselves).
 195   --
 196   from_xml OddsGameTeamXml{..} =
 197     Team {
 198       team_id   = xml_team_id,
 199       abbreviation = Just xml_team_abbr,
 200       name = Just xml_team_name }
 201
 202 -- | This allows us to insert the XML representation
 203 --   'OddsGameTeamXml' directly.
 204 --
 205 instance XmlImport OddsGameTeamXml where
 206
 207
 208
 209
 210 -- * OddsGameOverUnderXml
 211
 212 -- | XML representation of the over/under. A wrapper around a bunch of
 213 --   casino elements.
 214 --
 215 newtype OddsGameOverUnderXml =
 216   OddsGameOverUnderXml { xml_casinos :: [OddsGameCasinoXml] }
 217   deriving (Eq, Show)
 218
 219
 220 -- * OddsGameLine
 221
 222 -- | This database representation of the casino lines can't be
 223 --   constructed from the one in the XML. The casinos within
 224 --   Game-\>HomeTeam, Game-\>AwayTeam, and Game-\>Over_Under are all more or
 225 --   less the same. We don't need a bajillion different tables to
 226 --   store that, just one tying the casino/game pair to the three
 227 --   lines.
 228 --
 229 --   The one small difference between the over/under casinos and the
 230 --   home/away ones is that the home/away lines are all 'Double's, but
 231 --   the over/under lines appear to be textual.
 232 --
 233 data OddsGameLine =
 234   OddsGameLine {
 235     ogl_odds_games_id   :: DefaultKey OddsGame,
 236     ogl_odds_casinos_id :: DefaultKey OddsCasino,
 237     ogl_over_under      :: Maybe String,
 238     ogl_away_line       :: Maybe Double,
 239     ogl_home_line       :: Maybe Double }
 240
 241
 242 -- * OddsGame/OddsGameXml
 243
 244 -- | Database representation of a game. We retain the rotation number
 245 --   of the home/away teams, since those are specific to the game and
 246 --   not the teams.
 247 --
 248 data OddsGame =
 249   OddsGame {
 250     db_odds_id           :: DefaultKey Odds,
 251     db_away_team_id      :: DefaultKey Team,
 252     db_home_team_id      :: DefaultKey Team,
 253     db_game_id           :: Int,
 254     db_game_time         :: UTCTime, -- ^ Contains both the date and time.
 255     db_away_team_rotation_number :: Maybe Int,
 256     db_home_team_rotation_number :: Maybe Int,
 257     db_away_team_starter_id :: Maybe Int,
 258     db_away_team_starter_name :: Maybe String,
 259     db_home_team_starter_id :: Maybe Int,
 260     db_home_team_starter_name :: Maybe String }
 261
 262
 263 -- | XML representation of an 'OddsGame'.
 264 --
 265 data OddsGameXml =
 266   OddsGameXml {
 267     xml_game_id         :: Int,
 268     xml_game_date       :: UTCTime, -- ^ Contains only the date
 269     xml_game_time       :: UTCTime, -- ^ Contains only the time
 270     xml_away_team  :: OddsGameTeamXml,
 271     xml_home_team  :: OddsGameTeamXml,
 272     xml_over_under :: OddsGameOverUnderXml }
 273   deriving (Eq, Show)
 274
 275 -- | Pseudo-field that lets us get the 'OddsGameCasinoXml's out of
 276 --   xml_over_under.
 277 --
 278 xml_over_under_casinos :: OddsGameXml -> [OddsGameCasinoXml]
 279 xml_over_under_casinos = xml_casinos . xml_over_under
 280
 281
 282 instance ToDb OddsGameXml where
 283   -- | The database representation of an 'OddsGameXml' is an
 284   --   'OddsGame'.
 285   --
 286   type Db OddsGameXml = OddsGame
 287
 288
 289 instance Child OddsGameXml where
 290   -- | Each 'OddsGameXml' is contained in an 'Odds'. In other words
 291   --   the foreign key for 'OddsGame' points to an 'Odds'.
 292   --
 293   type Parent OddsGameXml = Odds
 294
 295
 296 instance FromXmlFkTeams OddsGameXml where
 297   -- | To convert from the XML representation to the database one, we
 298   --   drop the casino lines, but retain the home/away rotation
 299   --   numbers and the starters. The foreign keys to 'Odds' and the
 300   --   home/away teams are passed in.
 301   --
 302   from_xml_fk_teams fk fk_away fk_home OddsGameXml{..} =
 303     OddsGame {
 304       db_odds_id = fk,
 305       db_away_team_id = fk_away,
 306       db_home_team_id = fk_home,
 307       db_game_id   = xml_game_id,
 308
 309       db_game_time = UTCTime
 310                        (utctDay xml_game_date) -- Take the day part from one,
 311                        (utctDayTime xml_game_time), -- the time from the other.
 312
 313       db_away_team_rotation_number =
 314         (xml_team_rotation_number xml_away_team),
 315
 316       db_home_team_rotation_number =
 317         (xml_team_rotation_number xml_home_team),
 318
 319       db_away_team_starter_id =
 320         (xml_starter_id <$> xml_team_starter xml_away_team),
 321
 322       -- Sometimes the starter element is present but the name isn't,
 323       -- so we combine the two maybes with join.
 324       db_away_team_starter_name = join
 325         (xml_starter_name <$> xml_team_starter xml_away_team),
 326
 327       db_home_team_starter_id =
 328         (xml_starter_id <$> xml_team_starter xml_home_team),
 329
 330       -- Sometimes the starter element is present but the name isn't,
 331       -- so we combine the two maybes with join.
 332       db_home_team_starter_name = join
 333         (xml_starter_name <$> xml_team_starter xml_home_team) }
 334
 335
 336 -- | This lets us insert the XML representation 'OddsGameXml' directly.
 337 --
 338 instance XmlImportFkTeams OddsGameXml
 339
 340
 341 -- * OddsGameWithNotes
 342
 343 -- | This is our best guess at what occurs in the Odds_XML
 344 --   documents. It looks like each consecutive set of games can
 345 --   optionally have some notes appear before it. Each \"note\" comes
 346 --   as its own \<Notes\>...\</Notes\> element.
 347 --
 348 --   The notes are ignored completely in the database; we only bother
 349 --   with them to ensure that we're (un)pickling correctly.
 350 --
 351 --   We can't group the notes with a \"set\" of 'OddsGame's, because
 352 --   that leads to ambiguity in parsing. Since we're going to ignore
 353 --   the notes anyway, we just stick them with an arbitrary
 354 --   game. C'est la vie.
 355 --
 356 --   We have to take the same approach with the league. The
 357 --   \<League_Name\> elements are sitting outside of the games, and
 358 --   are presumably supposed to be interpreted in \"chronological\"
 359 --   order; i.e. the current league stays the same until we see
 360 --   another \<League_Name\> element. Unfortunately, that's not how
 361 --   XML works. So we're forced to ignore the league in the database
 362 --   and pull the same trick, pairing them with games.
 363 --
 364 data OddsGameWithNotes =
 365   OddsGameWithNotes {
 366     league :: Maybe String,
 367     notes :: [String],
 368     game :: OddsGameXml }
 369   deriving (Eq, Show)
 370
 371
 372 -- * Odds/Message
 373
 374 -- | Database representation of a 'Message'.
 375 --
 376 data Odds =
 377   Odds {
 378     db_xml_file_id :: Int,
 379     db_sport :: String,
 380     db_title :: String,
 381     db_line_time :: String, -- ^ We don't parse these as a 'UTCTime'
 382                             --   because their timezones are ambiguous
 383                             --   (and the date is less than useful when
 384                             --   it might be off by an hour).
 385     db_time_stamp :: UTCTime }
 386
 387
 388 -- | The XML representation of 'Odds'.
 389 --
 390 data Message =
 391   Message {
 392     xml_xml_file_id :: Int,
 393     xml_heading :: String,
 394     xml_category :: String,
 395     xml_sport :: String,
 396     xml_title :: String,
 397     xml_line_time :: String,
 398     xml_games_with_notes :: [OddsGameWithNotes],
 399     xml_time_stamp :: UTCTime }
 400   deriving (Eq, Show)
 401
 402 -- | Pseudo-field that lets us get the 'OddsGame's out of
 403 --   'xml_games_with_notes'.
 404 --
 405 xml_games :: Message -> [OddsGameXml]
 406 xml_games m = map game (xml_games_with_notes m)
 407
 408
 409 instance ToDb Message where
 410   -- | The database representation of a 'Message' is 'Odds'.
 411   --
 412   type Db Message = Odds
 413
 414 instance FromXml Message where
 415   -- | To convert from the XML representation to the database one, we
 416   --   just drop a bunch of fields.
 417   --
 418   from_xml Message{..} =
 419     Odds {
 420       db_xml_file_id = xml_xml_file_id,
 421       db_sport = xml_sport,
 422       db_title = xml_title,
 423       db_line_time = xml_line_time,
 424       db_time_stamp = xml_time_stamp }
 425
 426 -- | This lets us insert the XML representation 'Message' directly.
 427 --
 428 instance XmlImport Message
 429
 430
 431 --
 432 -- Database code
 433 --
 434
 435 -- Groundhog database schema. This must come before the DbImport
 436 -- instance definition. Don't know why.
 437 mkPersist tsn_codegen_config [groundhog|
 438 - entity: Odds
 439   constructors:
 440     - name: Odds
 441       uniques:
 442         - name: unique_odds
 443           type: constraint
 444           # Prevent multiple imports of the same message.
 445           fields: [db_xml_file_id]
 446
 447 - entity: OddsCasino
 448   dbName: odds_casinos
 449   constructors:
 450     - name: OddsCasino
 451       uniques:
 452         - name: unique_odds_casinos
 453           type: constraint
 454           fields: [casino_client_id]
 455
 456 - entity: OddsGame
 457   dbName: odds_games
 458   constructors:
 459     - name: OddsGame
 460       fields:
 461         - name: db_odds_id
 462           reference:
 463             onDelete: cascade
 464         - name: db_away_team_id
 465           reference:
 466             onDelete: cascade
 467         - name: db_home_team_id
 468           reference:
 469             onDelete: cascade
 470
 471 - entity: OddsGameLine
 472   dbName: odds_games_lines
 473   constructors:
 474     - name: OddsGameLine
 475       fields:
 476         - name: ogl_odds_games_id
 477           reference:
 478             onDelete: cascade
 479         - name: ogl_odds_casinos_id
 480           reference:
 481             onDelete: cascade
 482
 483 |]
 484
 485 instance DbImport Message where
 486   dbmigrate _=
 487     run_dbmigrate $ do
 488       migrate (undefined :: Team)
 489       migrate (undefined :: Odds)
 490       migrate (undefined :: OddsCasino)
 491       migrate (undefined :: OddsGame)
 492       migrate (undefined :: OddsGameLine)
 493
 494   dbimport m = do
 495     -- Insert the root "odds" element and acquire its primary key (id).
 496     odds_id <- insert_xml m
 497
 498     forM_ (xml_games m) $ \game -> do
 499       -- First we insert the home and away teams.
 500       away_team_id <- insert_xml_or_select (xml_away_team game)
 501       home_team_id <- insert_xml_or_select (xml_home_team game)
 502
 503       -- Now insert the game, keyed to the "odds" and its teams.
 504       game_id <- insert_xml_fk_teams odds_id away_team_id home_team_id game
 505
 506       -- Finally, we insert the lines. The over/under entries for this
 507       -- game and the lines for the casinos all wind up in the same
 508       -- table, odds_games_lines. We can insert the over/under entries
 509       -- freely with empty away/home lines:
 510       forM_ (xml_over_under_casinos game) $ \c -> do
 511         -- Start by inderting the casino.
 512         ou_casino_id <- insert_xml_or_select c
 513
 514         -- Now add the over/under entry with the casino's id.
 515         let ogl = OddsGameLine {
 516                     ogl_odds_games_id = game_id,
 517                     ogl_odds_casinos_id = ou_casino_id,
 518                     ogl_over_under = (xml_casino_line c),
 519                     ogl_away_line = Nothing,
 520                     ogl_home_line = Nothing }
 521
 522         insert_ ogl
 523
 524       -- ...but then when we insert the home/away team lines, we
 525       -- prefer to update the existing entry rather than overwrite it
 526       -- or add a new record.
 527       forM_ (xml_team_casinos $ xml_away_team game) $ \c -> do
 528         -- insert, or more likely retrieve the existing, casino
 529         a_casino_id <- insert_xml_or_select c
 530
 531         -- Get a Maybe Double instead of the Maybe String that's in there.
 532         let away_line = home_away_line c
 533
 534         -- Unconditionally update that casino's away team line with ours.
 535         update [Ogl_Away_Line =. away_line] $ -- WHERE
 536           Ogl_Odds_Casinos_Id ==. a_casino_id
 537
 538       -- Repeat all that for the home team.
 539       forM_ (xml_team_casinos $ xml_home_team game) $ \c ->do
 540         h_casino_id <- insert_xml_or_select c
 541         let home_line = home_away_line c
 542         update [Ogl_Home_Line =. home_line] $ -- WHERE
 543           Ogl_Odds_Casinos_Id ==. h_casino_id
 544
 545       return game_id
 546
 547     return ImportSucceeded
 548
 549
 550 --
 551 -- Pickling
 552 --
 553
 554 -- | Pickler for an 'OddsGame' optionally preceded by some notes.
 555 --
 556 pickle_game_with_notes :: PU OddsGameWithNotes
 557 pickle_game_with_notes =
 558   xpWrap (from_pair, to_pair) $
 559     xpTriple
 560       (xpOption $ xpElem "League_Name" xpText)
 561       (xpList $ xpElem "Notes" xpText)
 562       pickle_game
 563   where
 564     from_pair = uncurryN OddsGameWithNotes
 565     to_pair OddsGameWithNotes{..} = (league, notes, game)
 566
 567
 568 -- | Pickler for an 'OddsGameCasinoXml'.
 569 --
 570 pickle_casino :: PU OddsGameCasinoXml
 571 pickle_casino =
 572   xpElem "Casino" $
 573   xpWrap (from_tuple, to_tuple) $
 574   xpTriple
 575     (xpAttr "ClientID" xpInt)
 576     (xpAttr "Name" xpText)
 577     (xpOption xpText)
 578   where
 579     from_tuple = uncurryN OddsGameCasinoXml
 580     -- Use record wildcards to avoid unused field warnings.
 581     to_tuple OddsGameCasinoXml{..} = (xml_casino_client_id,
 582                                       xml_casino_name,
 583                                       xml_casino_line)
 584
 585
 586 -- | Pickler for an 'OddsGameTeamXml'.
 587 --
 588 pickle_home_team :: PU OddsGameTeamXml
 589 pickle_home_team =
 590   xpElem "HomeTeam" $
 591     xpWrap (from_tuple, to_tuple) $
 592       xp6Tuple
 593         (xpElem "HomeTeamID" xpText)
 594         (xpElem "HomeRotationNumber" (xpOption xpInt))
 595         (xpElem "HomeAbbr" xpText)
 596         (xpElem "HomeTeamName" xpText)
 597         (xpOption pickle_home_starter)
 598         (xpList pickle_casino)
 599   where
 600     from_tuple = uncurryN OddsGameTeamXml
 601
 602     -- Use record wildcards to avoid unused field warnings.
 603     to_tuple OddsGameTeamXml{..} = (xml_team_id,
 604                                     xml_team_rotation_number,
 605                                     xml_team_abbr,
 606                                     xml_team_name,
 607                                     xml_team_starter,
 608                                     xml_team_casinos)
 609
 610
 611 -- | Portion of the 'OddsGameTeamStarterXml' pickler that is not
 612 --   specific to the home/away teams.
 613 --
 614 pickle_starter :: PU OddsGameTeamStarterXml
 615 pickle_starter =
 616   xpWrap (from_tuple, to_tuple) $
 617     xpPair (xpAttr "ID" xpInt) (xpOption xpText)
 618   where
 619     from_tuple = uncurry OddsGameTeamStarterXml
 620     to_tuple OddsGameTeamStarterXml{..} = (xml_starter_id,
 621                                            xml_starter_name)
 622
 623 -- | Pickler for an home team 'OddsGameTeamStarterXml'
 624 --
 625 pickle_home_starter :: PU OddsGameTeamStarterXml
 626 pickle_home_starter = xpElem "HStarter" pickle_starter
 627
 628
 629 -- | Pickler for an away team 'OddsGameTeamStarterXml'
 630 --
 631 pickle_away_starter :: PU OddsGameTeamStarterXml
 632 pickle_away_starter = xpElem "AStarter" pickle_starter
 633
 634
 635
 636 -- | Pickler for an 'OddsGameTeamXml'.
 637 --
 638 pickle_away_team :: PU OddsGameTeamXml
 639 pickle_away_team =
 640   xpElem "AwayTeam" $
 641     xpWrap (from_tuple, to_tuple) $
 642       xp6Tuple
 643         (xpElem "AwayTeamID" xpText)
 644         (xpElem "AwayRotationNumber" (xpOption xpInt))
 645         (xpElem "AwayAbbr" xpText)
 646         (xpElem "AwayTeamName" xpText)
 647         (xpOption pickle_away_starter)
 648         (xpList pickle_casino)
 649   where
 650     from_tuple = uncurryN OddsGameTeamXml
 651
 652     -- Use record wildcards to avoid unused field warnings.
 653     to_tuple OddsGameTeamXml{..} = (xml_team_id,
 654                                     xml_team_rotation_number,
 655                                     xml_team_abbr,
 656                                     xml_team_name,
 657                                     xml_team_starter,
 658                                     xml_team_casinos)
 659
 660
 661
 662 -- | Pickler for an 'OddsGameOverUnderXml'.
 663 --
 664 pickle_over_under :: PU OddsGameOverUnderXml
 665 pickle_over_under =
 666   xpElem "Over_Under" $
 667   xpWrap (to_newtype, from_newtype) $
 668     xpList pickle_casino
 669   where
 670     from_newtype (OddsGameOverUnderXml cs) = cs
 671     to_newtype = OddsGameOverUnderXml
 672
 673
 674 -- | Pickler for an 'OddsGameXml'.
 675 --
 676 pickle_game :: PU OddsGameXml
 677 pickle_game =
 678   xpElem "Game" $
 679   xpWrap (from_tuple, to_tuple) $
 680   xp6Tuple
 681     (xpElem "GameID" xpInt)
 682     (xpElem "Game_Date" xp_date_padded)
 683     (xpElem "Game_Time" xp_time)
 684     pickle_away_team
 685     pickle_home_team
 686     pickle_over_under
 687   where
 688     from_tuple = uncurryN OddsGameXml
 689     -- Use record wildcards to avoid unused field warnings.
 690     to_tuple OddsGameXml{..} = (xml_game_id,
 691                                 xml_game_date,
 692                                 xml_game_time,
 693                                 xml_away_team,
 694                                 xml_home_team,
 695                                 xml_over_under)
 696
 697
 698 -- | Pickler for the top-level 'Message'.
 699 --
 700 pickle_message :: PU Message
 701 pickle_message =
 702   xpElem "message" $
 703     xpWrap (from_tuple, to_tuple) $
 704     xp8Tuple (xpElem "XML_File_ID" xpInt)
 705              (xpElem "heading" xpText)
 706              (xpElem "category" xpText)
 707              (xpElem "sport" xpText)
 708              (xpElem "Title" xpText)
 709              (xpElem "Line_Time" xpText)
 710              (xpList pickle_game_with_notes)
 711              (xpElem "time_stamp" xp_time_stamp)
 712   where
 713     from_tuple = uncurryN Message
 714     to_tuple m = (xml_xml_file_id m,
 715                   xml_heading m,
 716                   xml_category m,
 717                   xml_sport m,
 718                   xml_title m,
 719                   xml_line_time m,
 720                   xml_games_with_notes m,
 721                   xml_time_stamp m)
 722
 723
 724 --
 725 -- Tasty Tests
 726 --
 727
 728 -- | A list of all tests for this module.
 729 --
 730 odds_tests :: TestTree
 731 odds_tests =
 732   testGroup
 733     "Odds tests"
 734     [ test_on_delete_cascade,
 735       test_pickle_of_unpickle_is_identity,
 736       test_unpickle_succeeds ]
 737
 738
 739 -- | If we unpickle something and then pickle it, we should wind up
 740 --   with the same thing we started with. WARNING: success of this
 741 --   test does not mean that unpickling succeeded.
 742 --
 743 test_pickle_of_unpickle_is_identity :: TestTree
 744 test_pickle_of_unpickle_is_identity = testGroup "pickle-unpickle tests"
 745   [ check "pickle composed with unpickle is the identity"
 746           "test/xml/Odds_XML.xml",
 747
 748     check "pickle composed with unpickle is the identity (non-int team_id)"
 749           "test/xml/Odds_XML-noninteger-team-id.xml",
 750
 751     check "pickle composed with unpickle is the identity (positive(+) line)"
 752           "test/xml/Odds_XML-positive-line.xml",
 753
 754     check "pickle composed with unpickle is the identity (large file)"
 755           "test/xml/Odds_XML-largefile.xml",
 756
 757     check "pickle composed with unpickle is the identity (league name)"
 758           "test/xml/Odds_XML-league-name.xml",
 759
 760     check "pickle composed with unpickle is the identity (missing starters)"
 761           "test/xml/Odds_XML-missing-starters.xml" ]
 762   where
 763     check desc path = testCase desc $ do
 764       (expected, actual) <- pickle_unpickle pickle_message path
 765       actual @?= expected
 766
 767
 768 -- | Make sure we can actually unpickle these things.
 769 --
 770 test_unpickle_succeeds :: TestTree
 771 test_unpickle_succeeds = testGroup "unpickle tests"
 772   [ check "unpickling succeeds"
 773           "test/xml/Odds_XML.xml",
 774
 775     check "unpickling succeeds (non-int team_id)"
 776           "test/xml/Odds_XML-noninteger-team-id.xml",
 777
 778     check "unpickling succeeds (positive(+) line)"
 779           "test/xml/Odds_XML-positive-line.xml",
 780
 781     check "unpickling succeeds (large file)"
 782           "test/xml/Odds_XML-largefile.xml",
 783
 784     check "unpickling succeeds (league name)"
 785           "test/xml/Odds_XML-league-name.xml",
 786
 787     check "unpickling succeeds (missing starters)"
 788           "test/xml/Odds_XML-missing-starters.xml" ]
 789   where
 790     check desc path = testCase desc $ do
 791       actual <- unpickleable path pickle_message
 792       let expected = True
 793       actual @?= expected
 794
 795
 796 -- | Make sure everything gets deleted when we delete the top-level
 797 --   record. The casinos and teams should be left behind.
 798 --
 799 test_on_delete_cascade :: TestTree
 800 test_on_delete_cascade = testGroup "cascading delete tests"
 801     [ check "deleting odds deletes its children"
 802           "test/xml/Odds_XML.xml"
 803           13 -- 5 casinos, 8 teams
 804     ,
 805
 806     check "deleting odds deletes its children (non-int team_id)"
 807           "test/xml/Odds_XML-noninteger-team-id.xml"
 808           51 -- 5 casinos, 46 teams
 809     ,
 810
 811     check "deleting odds deleted its children (positive(+) line)"
 812           "test/xml/Odds_XML-positive-line.xml"
 813           17 -- 5 casinos, 12 teams
 814     ,
 815
 816     check "deleting odds deleted its children (large file)"
 817           "test/xml/Odds_XML-largefile.xml"
 818           189 -- 5 casinos, 184 teams
 819     ,
 820     check "deleting odds deleted its children (league name)"
 821           "test/xml/Odds_XML-league-name.xml"
 822           35 -- 5 casinos, 30 teams
 823     ,
 824     check "deleting odds deleted its children (missing starters)"
 825           "test/xml/Odds_XML-missing-starters.xml"
 826           7 -- 5 casinos, 2 teams
 827     ]
 828   where
 829     check desc path expected = testCase desc $ do
 830       odds <- unsafe_unpickle path pickle_message
 831       let a = undefined :: Team
 832       let b = undefined :: Odds
 833       let c = undefined :: OddsCasino
 834       let d = undefined :: OddsGame
 835       let e = undefined :: OddsGameLine
 836       actual <- withSqliteConn ":memory:" $ runDbConn $ do
 837                   runMigration silentMigrationLogger $ do
 838                     migrate a
 839                     migrate b
 840                     migrate c
 841                     migrate d
 842                     migrate e
 843                   _ <- dbimport odds
 844                   deleteAll b
 845                   count_a <- countAll a
 846                   count_b <- countAll b
 847                   count_c <- countAll c
 848                   count_d <- countAll d
 849                   count_e <- countAll e
 850                   return $ sum [count_a, count_b, count_c,
 851                                 count_d, count_e ]
 852       actual @?= expected