import sqlalchemy as sa
from sqlalchemy import orm
+from bluechips.model.user import User
+from bluechips.model.expenditure import Expenditure
+from bluechips.model.split import Split
+from bluechips.model.subitem import Subitem
+from bluechips.model.transfer import Transfer
+from bluechips.model.tag import Tag
+
from bluechips.model import meta
from bluechips.model import types
+from datetime import datetime
+
def init_model(engine):
"""Call me before using any of the tables or classes in the model"""
- sm = orm.sessionmaker(autoflush=True, transactional=True, bind=engine)
+ sm = orm.sessionmaker(autoflush=True, bind=engine)
meta.engine = engine
meta.Session = orm.scoped_session(sm)
sa.Column('id', sa.types.Integer, primary_key=True),
sa.Column('username', sa.types.Unicode(32), nullable=False),
sa.Column('name', sa.types.Unicode(64)),
- sa.Column('resident', sa.types.Boolean, default=True)
+ sa.Column('resident', sa.types.Boolean, default=True),
+ sa.Column('email', sa.types.Unicode(64)),
+ sa.Column('password', sa.types.Unicode(64)),
)
expenditures = sa.Table('expenditures', meta.metadata,
sa.Column('id', sa.types.Integer, primary_key=True),
sa.Column('spender_id', sa.types.Integer,
sa.ForeignKey('users.id'), nullable=False),
- sa.Column('amount', types.Currency, nullable=False),
- sa.Column('date', sa.types.Date, default=sa.func.now),
+ sa.Column('amount', types.DBCurrency, nullable=False),
+ sa.Column('description', sa.types.Text),
+ sa.Column('date', sa.types.Date, default=datetime.now),
sa.Column('entered_time', sa.types.DateTime,
- default=sa.func.now)
+ default=datetime.utcnow)
)
splits = sa.Table('splits', meta.metadata,
sa.ForeignKey('expenditures.id'), nullable=False),
sa.Column('user_id', sa.types.Integer,
sa.ForeignKey('users.id'), nullable=False),
- sa.Column('share', sa.types.Integer, nullable=False)
+ sa.Column('share_text', sa.Text, nullable=False),
+ sa.Column('share', types.DBCurrency, nullable=False)
)
+tags = sa.Table('tags', meta.metadata,
+ sa.Column('id', sa.types.Integer, primary_key=True),
+ sa.Column('name', sa.Text))
+
+tag_to_expense_map = sa.Table('tag_to_expense_map', meta.metadata,
+ sa.Column('tag_id', sa.types.Integer,
+ sa.ForeignKey('tags.id'),
+ primary_key=True),
+ sa.Column('expenditure_id', sa.types.Integer,
+ sa.ForeignKey('expenditures.id'),
+ primary_key=True))
+
subitems = sa.Table('subitems', meta.metadata,
sa.Column('id', sa.types.Integer, primary_key=True),
sa.Column('expenditure_id', sa.types.Integer,
sa.ForeignKey('expenditures.id'), nullable=False),
sa.Column('user_id', sa.types.Integer,
sa.ForeignKey('users.id'), nullable=False),
- sa.Column('amount', types.Currency, nullable=False)
+ sa.Column('amount', types.DBCurrency, nullable=False)
)
transfers = sa.Table('transfers', meta.metadata,
sa.ForeignKey('users.id'), nullable=False),
sa.Column('creditor_id', sa.types.Integer,
sa.ForeignKey('users.id'), nullable=False),
- sa.Column('amount', types.Currency, nullable=False),
- sa.Column('date', sa.types.Date, default=sa.func.now),
+ sa.Column('amount', types.DBCurrency, nullable=False),
+ sa.Column('description', sa.Text, default=None),
+ sa.Column('date', sa.types.Date, default=datetime.now),
sa.Column('entered_time', sa.types.DateTime,
- default=sa.func.now),
- sa.Column('desc', sa.Text, default=None)
+ default=datetime.utcnow)
)
-### ORM Classes ###
-
-class User(object):
- def __repr__(self):
- return '<User: %w>' % (self.username)
-
-class Expenditure(object):
- def __repr__(self):
- return '<Expenditure: spender: %s spent: %s>' % (self.spender,
- self.amount)
-
-class Split(object):
- def __repr__(self):
- return '<Split: expense: %s user: %s share: %s%%>' % (self.expenditure,
- self.user,
- self.share)
-
-class Subitem(object):
- def __repr__(self):
- return '<Subitem: expense: %s user: %s cost: %s>' % (self.expense,
- self.user,
- self.amount)
-
-class Transfer(object):
- def __repr__(self):
- return '<Transfer: from %s to %s for %s>' % (self.debtor,
- self.creditor,
- self.amount)
-
### DB/Class Mapping ###
-orm.mapper(User, users)
+orm.mapper(User, users,
+ properties={
+ 'expenditures': orm.relation(Expenditure,
+ backref='spender')
+})
-orm.mapper(Expenditure, expenditures, properties={
- 'spender': orm.relation(User, backref='expenditures')
+orm.mapper(Expenditure, expenditures,
+ order_by=[expenditures.c.date.desc(), expenditures.c.entered_time.desc()],
+ properties={
+ 'splits': orm.relation(Split, backref='expenditure',
+ cascade='all, delete'),
+ '_tags': orm.relation(Tag, secondary=tag_to_expense_map,
+ collection_class=set, cascade='all, delete'),
+ 'subitems': orm.relation(Subitem, backref='expenditure',
+ cascade='all, delete')
})
orm.mapper(Split, splits, properties={
- 'expenditure': orm.relation(Expenditure, backref='splits'),
'user': orm.relation(User)
})
+orm.mapper(Tag, tags, properties={
+ 'expenditures': orm.relation(Expenditure, secondary=tag_to_expense_map)})
+
orm.mapper(Subitem, subitems, properties={
- 'expenditure': orm.relation(Expenditure, backref='subitems'),
'user': orm.relation(User)
})
-orm.mapper(Transfer, transfers, properties={
+orm.mapper(Transfer, transfers,
+ order_by=[transfers.c.date.desc(), transfers.c.entered_time.desc()],
+ properties={
'debtor': orm.relation(User,
primaryjoin=(transfers.c.debtor_id==\
users.c.id)),
users.c.id))
})
-__all__ = [users, expenditures, splits, subitems, transfers,
- User, Expenditure, Split, Subitem, Transfer,
- meta]
+__all__ = ['users', 'expenditures', 'splits', 'tags', 'subitems', 'transfers',
+ 'User', 'Expenditure', 'Split', 'Tag', 'Subitem', 'Transfer',
+ 'meta']
projects / bluechips.git / blobdiff