db.py

from json import loads
from peewee import *

db = SqliteDatabase("data/all_races_1990-2025.db")


class Race(Model):
    """
    rid: Unique race ID
    place_id: Unique ID of racing course
    date: Date of race
    name: Race name
    course: Course type (1: turf, 0: dirt)
    course_sit: Course situation (0: 良, 1: 稍重, 2: 重, 3: 不良)
    weather: Weather (0: 晴, 1: 曇, 2: 小雨, 3: 雨, 4: 小雪, 5: 雪)
    distance: Distance (in meters)
    horses: Json format, List of horses
        list of horse info(in list)
        [
            hid,                # horse id
            ranking,            # final result (1: 1st, 2: 2nd, ...)
            gate_group,         # gate group
            gate,               # gate number
            weight,             # addon weight (in kg)
            body_weight,        # body weight (in kg)
            body_weight_diff,   # body weight difference (in kg)
            time,               # time (in seconds)
            finalt,             # final time(should be last 600m time) (in seconds)
            time_factor,        # time factor from Netkeiba, just for reference
            jockey_id,          # jockey id
        ]
    """
    rid = IntegerField(index=True, unique=True)
    place_id = CharField()
    date = CharField()
    name = CharField()
    course = BooleanField()
    course_sit = IntegerField()
    weather = IntegerField()
    distance = IntegerField()
    horses = CharField(null=True)

    class Meta:
        database = db

    def as_dict(self):
        return {
            "rid": self.rid,
            "place_id": self.place_id,
            "date": self.date,
            "name": self.name,
            "course": self.course,
            "course_sit": self.course_sit,
            "weather": self.weather,
            "distance": self.distance,
            "horses": loads(self.horses)[0] if self.horses else None
        }


class Horse(Model):
    """
    hid: Unique horse ID
    born: Date of birth
    name: Horse name
    info: Horse info (gender, color, etc.)
    races: Json format, List of races
        list of race info(in list)
        [
            r_id,               # race id
            r_place_id,         # id for racing course
            r_time,             # date (without years)
            weather,            # weather (0: 晴, 1: 曇, 2: 小雨, 3: 雨, 4: 小雪, 5: 雪)
            c_type,             # course type (1: turf, 0: dirt)
            dis,                # distance (in meters)
            c_sit,              # course situation (0: 良, 1: 稍重, 2: 重, 3: 不良)
            all,                # total number of horses
            gate,               # gate number of horses
            weight,             # addon weight (in kg)
            body_weight,        # body weight (in kg)
            body_weight_diff,   # body weight difference (in kg)
            ranking,            # final result (1: 1st, 2: 2nd, ...)
            time,               # time (in seconds)
            time_diff,          # delta time with horse in front of this horse (in seconds)
            time_factor,        # time factor from Netkeiba, just for reference
            finalt,             # final time(should be last 600m time) (in seconds)
            r_date,             # full race date (year mo day)
        ]
    """
    hid = CharField(index=True, unique=True)
    born = CharField(null=True)
    name = CharField(null=True)
    info = CharField(null=True)
    races = CharField(null=True)

    class Meta:
        database = db

    def as_dict(self):
        return {
            "hid": self.hid,
            "born": self.born,
            "name": self.name,
            "info": self.info,
            "races": loads(self.races)[0] if self.races else None
        }


def main():
    db.connect()
    db.create_tables([Race, Horse])


if __name__ == "__main__":
    main()