sportdb-readers Gem v1.0 - sport.db Readers for Leagues, Clubs, Matches, Etc.

ruby-talk
1

Hello,

  I've updated the sportdb-reader gem / library [1] now at version 1.0 -
that lets you read in (import) datafiles in (structured) text
into any SQL database (using the sport.db schema / tables)
using SportDb.read.

  Try it with the English Premier League e.g. 2019-20/1-premierleague.txt [2a]
or the Deutsche Bundesliga e.g. 2019-20/1-bundesliga.txt [2b]
or the World Cup 2018 e.g. 2018--russia/cup.txt [2c]
or your very own league [3].

   Show me the ruby code! From the readme - here we script:

  Step 1:

  Setup the (SQL) database. Let's use and build a single-file SQLite
database (from scratch),
as an example:

require 'sportdb/readers'

SportDb.connect( adapter:  'sqlite3',
                 database: './england.db' )
SportDb.create_all       ## build database schema (tables, indexes, etc.)

  Step 2:

Let's read in some leagues, seasons, clubs, and match schedules and results.
Let's use the public domain football.db datasets for England, as an example:

= English Premier League 2015/16

Matchday 1

[Sat Aug 8]
  Manchester United      1-0  Tottenham Hotspur
  AFC Bournemouth        0-1  Aston Villa
  Everton FC             2-2  Watford FC
  Leicester City         4-2  Sunderland AFC
  Norwich City           1-3  Crystal Palace
  Chelsea FC             2-2  Swansea City
[Sun Aug 9]
  Arsenal FC             0-2  West Ham United
  Newcastle United       2-2  Southampton FC
  Stoke City             0-1  Liverpool FC
[Mon Aug 10]
  West Bromwich Albion   0-3  Manchester City

...

and let's try:

## assumes football.db datasets for England in ./england directory
##   see github.com/openfootball/england
SportDb::MatchReader.read( './england/2015-16/1-premierleague-i.txt' )
SportDb::MatchReader.read( './england/2015-16/1-premierleague-ii.txt' )

## let's try another season
SportDb::MatchReader.read( './england/2019-20/1-premierleague.txt' )

All leagues, seasons, clubs, match days and rounds, match fixtures and results,
and more are now in your (SQL) database of choice.

The proof of the pudding - Let's query the (SQL) database using the
sport.db ActiveRecord models:

include SportDb::Models

pl_2015_16 = Event.find_by( key: 'eng.1.2015/16' )
#=> SELECT * FROM events WHERE key = 'eng.1.2015/16' LIMIT 1

pl_2015_16.teams.count  #=> 20
#=> SELECT COUNT(*) FROM teams
#      INNER JOIN events_teams ON teams.id = events_teams.team_id
#      WHERE events_teams.event_id = 1

pl_2015_16.games.count  #=> 380
#=>  SELECT COUNT(*) FROM games
#      INNER JOIN rounds ON games.round_id = rounds.id
#      WHERE rounds.event_id = 1

pl_2019_20 = Event.find_by( key: 'eng.1.2019/20' )
pl_2015_16.teams.count  #=> 20
pl_2015_16.games.count  #=> 380

# -or-

pl = League.find_by( key: 'eng.1' )
#=> SELECT * FROM leagues WHERE key = 'eng.1' LIMIT 1

pl.seasons.count   #=> 2
#=> SELECT COUNT(*) FROM seasons
#     INNER JOIN events ON seasons.id = events.season_id
#     WHERE events.league_id = 1

# and so on and so forth.

   Enjoy the beautiful game with ruby.

   Cheers. Prost.

[1] https://github.com/sportdb/sport.db/tree/master/sportdb-readers
[2a] https://github.com/openfootball/england/blob/master/2019-20/1-premierleague.txt
[2b] https://github.com/openfootball/deutschland/blob/master/2019-20/1-bundesliga.txt
[2c] https://github.com/openfootball/world-cup/blob/master/2018--russia/cup.txt
[3] https://github.com/openfootball/league-starter