1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
|
from sqlalchemy import Column, ForeignKey, Table
from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy.orm import backref, relationship, sessionmaker
from sqlalchemy.types import Boolean, Date, Float, Integer, String
Base = declarative_base()
class Driver(Base):
__tablename__ = 'drivers'
id = Column(Integer, primary_key=True)
driver = Column(String)
country = Column(String)
rankings = relationship('Ranking', order_by='Ranking.rank_date', back_populates='driver')
def __repr__(self):
return (u"<%s (#%d)>" % (self.driver, self.id)).encode('utf8')
def get_ranking(self, rank_date=None):
ranks = self.rankings
if rank_date is not None:
ranks = [r for r in ranks if r.rank_date < rank_date]
if len(ranks):
return ranks[-1]
return None
driver_entry = Table('driver_entries', Base.metadata,
Column('_driver', Integer, ForeignKey('drivers.id')),
Column('_entry', Integer, ForeignKey('entries.id')),
Column('id', Integer))
class Entry(Base):
__tablename__ = 'entries'
id = Column(Integer, primary_key=True)
result = Column(String)
car_no = Column(String)
result_group = Column(Integer)
_race = Column(Integer, ForeignKey('races.id'))
race = relationship('Race', back_populates='entries', order_by=result_group)
drivers = relationship('Driver', secondary=driver_entry)
def __repr__(self):
return ('#%s (%s) %s[%d]' % (self.car_no, ', '.join([driver.__repr__().decode('utf8') for driver in self.drivers]), self.result, self.result_group)).encode('utf8')
class Race(Base):
__tablename__ = 'races'
id = Column(Integer, primary_key=True)
race = Column(String)
date = Column(Date)
ranked = Column(Boolean)
_type = Column(Integer, ForeignKey('race_types.id'))
type = relationship('RaceType', back_populates='races', order_by='Race.date')
entries = relationship('Entry', back_populates='race', order_by='Entry.result_group')
def __repr__(self):
return ('%s (%s)' % (self.race, self.date)).encode('utf8')
class RaceType(Base):
__tablename__ = 'race_types'
id = Column(Integer, primary_key=True)
code = Column(String)
description = Column(String)
races = relationship('Race', back_populates='type')
def __repr__(self):
return ('%s (%s)' % (self.description, self.code)).encode('utf8')
class Ranking(Base):
__tablename__ = 'rankings'
id = Column(Integer, primary_key=True)
rank_date = Column(Date)
ranking = Column(Float)
_driver = Column(Integer, ForeignKey('drivers.id'))
driver = relationship('Driver', back_populates='rankings', order_by=rank_date)
def __repr__(self):
return ("%s: %0.2f (%s)" % (self.driver.__repr__().decode('utf8'), self.ranking, self. rank_date)).encode('utf8')
__all__ = ['Driver', 'Entry', 'Ranking', 'Race', 'RaceType']
|
