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text/x-python
Backout changeset 14e7e8f7a2e5 (see note)
Apparently PythonService.exe doesn't acknowledge the 'absolute_import' feature
from __future__...? So we can't have a 'rattail.sqlalchemy' module and instead
must keep 'GPCType' within 'rattail.gpc'.
Apparently PythonService.exe doesn't acknowledge the 'absolute_import' feature
from __future__...? So we can't have a 'rattail.sqlalchemy' module and instead
must keep 'GPCType' within 'rattail.gpc'.
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# -*- coding: utf-8 -*-
################################################################################
#
# Rattail -- Retail Software Framework
# Copyright © 2010-2012 Lance Edgar
#
# This file is part of Rattail.
#
# Rattail is free software: you can redistribute it and/or modify it under the
# terms of the GNU Affero General Public License as published by the Free
# Software Foundation, either version 3 of the License, or (at your option)
# any later version.
#
# Rattail is distributed in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
# FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for
# more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with Rattail. If not, see <http://www.gnu.org/licenses/>.
#
################################################################################
"""
``rattail.db.extension.model`` -- Schema Definition
"""
from sqlalchemy import Column, ForeignKey
from sqlalchemy import String, Integer, DateTime, Date, Boolean, Numeric, Text
from sqlalchemy import types
from sqlalchemy import and_
from sqlalchemy.orm import relationship, object_session
from sqlalchemy.ext.associationproxy import association_proxy
from sqlalchemy.ext.orderinglist import ordering_list
import edbob
from edbob.db.model import Base, uuid_column
from edbob.db.extensions.contact import Person, EmailAddress, PhoneNumber
from edbob.exceptions import LoadSpecError
from edbob.sqlalchemy import getset_factory
from rattail import sil
from rattail import batches
from rattail.gpc import GPCType
__all__ = ['Department', 'Subdepartment', 'Brand', 'Category', 'Vendor',
'VendorContact', 'VendorPhoneNumber', 'Product', 'ProductCost',
'ProductPrice', 'Customer', 'CustomerEmailAddress',
'CustomerPhoneNumber', 'CustomerGroup', 'CustomerGroupAssignment',
'CustomerPerson', 'Employee', 'EmployeeEmailAddress',
'EmployeePhoneNumber', 'BatchColumn', 'Batch', 'LabelProfile']
class BatchColumn(Base):
"""
Represents a :class:`SilColumn` associated with a :class:`Batch`.
"""
__tablename__ = 'batch_columns'
uuid = uuid_column()
batch_uuid = Column(String(32), ForeignKey('batches.uuid'))
ordinal = Column(Integer, nullable=False)
name = Column(String(20))
display_name = Column(String(50))
sil_name = Column(String(10))
data_type = Column(String(15))
description = Column(String(50))
visible = Column(Boolean, default=True)
def __init__(self, sil_name=None, **kwargs):
if sil_name:
kwargs['sil_name'] = sil_name
sil_column = sil.get_column(sil_name)
kwargs.setdefault('name', sil_name)
kwargs.setdefault('data_type', sil_column.data_type)
kwargs.setdefault('description', sil_column.description)
kwargs.setdefault('display_name', sil_column.display_name)
super(BatchColumn, self).__init__(**kwargs)
def __repr__(self):
return "<BatchColumn: %s>" % self.name
def __unicode__(self):
return unicode(self.display_name or '')
class BatchRow(edbob.Object):
"""
Superclass of batch row objects.
"""
def __unicode__(self):
return u"Row %d" % self.ordinal
class Batch(Base):
"""
Represents a SIL-compliant batch of data.
"""
__tablename__ = 'batches'
uuid = uuid_column()
provider = Column(String(50))
id = Column(String(8))
source = Column(String(6))
destination = Column(String(6))
action_type = Column(String(6))
description = Column(String(50))
rowcount = Column(Integer, default=0)
executed = Column(DateTime)
purge = Column(Date)
columns = relationship(BatchColumn, backref='batch',
collection_class=ordering_list('ordinal'),
order_by=BatchColumn.ordinal,
cascade='save-update, merge, delete, delete-orphan')
_rowclasses = {}
def __repr__(self):
return "<Batch: %s>" % self.description
def __unicode__(self):
return unicode(self.description or '')
@property
def rowclass(self):
"""
Returns the mapped class for the underlying row (data) table.
"""
if not self.uuid:
object_session(self).flush()
assert self.uuid
if self.uuid not in self._rowclasses:
kwargs = {
'__tablename__': 'batch.%s' % self.uuid,
'uuid': uuid_column(),
'ordinal': Column(Integer, nullable=False),
}
for column in self.columns:
data_type = sil.get_sqlalchemy_type(column.data_type)
kwargs[column.name] = Column(data_type)
rowclass = type('BatchRow_%s' % str(self.uuid), (Base, BatchRow), kwargs)
batch_uuid = self.uuid
def batch(self):
return object_session(self).query(Batch).get(batch_uuid)
rowclass.batch = property(batch)
self._rowclasses[self.uuid] = rowclass
return self._rowclasses[self.uuid]
def add_column(self, sil_name=None, **kwargs):
column = BatchColumn(sil_name, **kwargs)
self.columns.append(column)
def add_row(self, row, **kwargs):
"""
Adds a row to the batch data table.
"""
session = object_session(self)
# FIXME: This probably needs to use a func.max() query.
row.ordinal = self.rowcount + 1
session.add(row)
self.rowcount += 1
session.flush()
def create_table(self):
"""
Creates the batch's data table within the database.
"""
self.rowclass.__table__.create()
def drop_table(self):
"""
Drops the batch's data table from the database.
"""
self.rowclass.__table__.drop()
def execute(self, progress=None):
provider = self.get_provider()
assert provider
provider.execute(self, progress)
self.executed = edbob.utc_time(naive=True)
object_session(self).flush()
def get_provider(self):
assert self.provider
return batches.get_provider(self.provider)
def iter_rows(self):
session = object_session(self)
q = session.query(self.rowclass)
q = q.order_by(self.rowclass.ordinal)
return q
class Brand(Base):
"""
Represents a brand or similar product line.
"""
__tablename__ = 'brands'
uuid = uuid_column()
name = Column(String(100))
def __repr__(self):
return "<Brand: %s>" % self.name
def __str__(self):
return str(self.name or '')
class Department(Base):
"""
Represents an organizational department.
"""
__tablename__ = 'departments'
uuid = uuid_column()
number = Column(Integer)
name = Column(String(30))
def __repr__(self):
return "<Department: %s>" % self.name
def __unicode__(self):
return unicode(self.name or '')
class Subdepartment(Base):
"""
Represents an organizational subdepartment.
"""
__tablename__ = 'subdepartments'
uuid = uuid_column()
number = Column(Integer)
name = Column(String(30))
department_uuid = Column(String(32), ForeignKey('departments.uuid'))
department = relationship(Department)
def __repr__(self):
return "<Subdepartment: %s>" % self.name
def __unicode__(self):
return unicode(self.name or '')
class Category(Base):
"""
Represents an organizational category for products.
"""
__tablename__ = 'categories'
uuid = uuid_column()
number = Column(Integer)
name = Column(String(50))
department_uuid = Column(String(32), ForeignKey('departments.uuid'))
department = relationship(Department)
def __repr__(self):
return "<Category: %s, %s>" % (self.number, self.name)
def __str__(self):
return str(self.name or '')
def __unicode__(self):
return unicode(self.name or '')
class VendorEmailAddress(EmailAddress):
"""
Represents an email address associated with a :class:`Vendor`.
"""
__mapper_args__ = {'polymorphic_identity': 'Vendor'}
class VendorPhoneNumber(PhoneNumber):
"""
Represents a phone (or fax) number associated with a :class:`Vendor`.
"""
__mapper_args__ = {'polymorphic_identity': 'Vendor'}
class VendorContact(Base):
"""
Represents a point of contact (e.g. salesperson) for a vendor, from the
retailer's perspective.
"""
__tablename__ = 'vendor_contacts'
uuid = uuid_column()
vendor_uuid = Column(String(32), ForeignKey('vendors.uuid'), nullable=False)
person_uuid = Column(String(32), ForeignKey('people.uuid'), nullable=False)
preference = Column(Integer, nullable=False)
person = relationship(Person)
def __repr__(self):
return "<VendorContact: %s, %s>" % (self.vendor, self.person)
def __unicode__(self):
return unicode(self.person)
class Vendor(Base):
"""
Represents a vendor from which products are purchased by the store.
"""
__tablename__ = 'vendors'
uuid = uuid_column()
id = Column(String(15))
name = Column(String(40))
contacts = relationship(VendorContact, backref='vendor',
collection_class=ordering_list('preference', count_from=1),
order_by=VendorContact.preference)
def __repr__(self):
return "<Vendor: %s>" % self.name
def __unicode__(self):
return unicode(self.name or '')
def add_contact(self, person):
contact = VendorContact(person=person)
self.contacts.append(contact)
def add_email_address(self, address, type='Info'):
email = VendorEmailAddress(address=address, type=type)
self.emails.append(email)
def add_phone_number(self, number, type='Voice'):
phone = VendorPhoneNumber(number=number, type=type)
self.phones.append(phone)
Vendor.emails = relationship(
VendorEmailAddress,
backref='vendor',
primaryjoin=VendorEmailAddress.parent_uuid == Vendor.uuid,
foreign_keys=[VendorEmailAddress.parent_uuid],
collection_class=ordering_list('preference', count_from=1),
order_by=VendorEmailAddress.preference,
cascade='save-update, merge, delete, delete-orphan')
Vendor.email = relationship(
VendorEmailAddress,
primaryjoin=and_(
VendorEmailAddress.parent_uuid == Vendor.uuid,
VendorEmailAddress.preference == 1),
foreign_keys=[VendorEmailAddress.parent_uuid],
uselist=False,
viewonly=True)
Vendor.phones = relationship(
VendorPhoneNumber,
backref='vendor',
primaryjoin=VendorPhoneNumber.parent_uuid == Vendor.uuid,
foreign_keys=[VendorPhoneNumber.parent_uuid],
collection_class=ordering_list('preference', count_from=1),
order_by=VendorPhoneNumber.preference,
cascade='save-update, merge, delete, delete-orphan')
Vendor.phone = relationship(
VendorPhoneNumber,
primaryjoin=and_(
VendorPhoneNumber.parent_uuid == Vendor.uuid,
VendorPhoneNumber.preference == 1),
foreign_keys=[VendorPhoneNumber.parent_uuid],
uselist=False,
viewonly=True)
Vendor.contact = relationship(
VendorContact,
primaryjoin=and_(
VendorContact.vendor_uuid == Vendor.uuid,
VendorContact.preference == 1),
uselist=False,
viewonly=True)
class ProductCost(Base):
"""
Represents a source from which a product may be obtained via purchase.
"""
__tablename__ = 'product_costs'
uuid = uuid_column()
product_uuid = Column(String(32), ForeignKey('products.uuid'), nullable=False)
vendor_uuid = Column(String(32), ForeignKey('vendors.uuid'), nullable=False)
preference = Column(Integer, nullable=False)
code = Column(String(15))
case_size = Column(Integer)
case_cost = Column(Numeric(9,5))
pack_size = Column(Integer)
pack_cost = Column(Numeric(9,5))
unit_cost = Column(Numeric(9,5))
effective = Column(DateTime)
vendor = relationship(Vendor)
def __repr__(self):
return "<ProductCost: %s : %s>" % (self.product, self.vendor)
class ProductPrice(Base):
"""
Represents a price for a product.
"""
__tablename__ = 'product_prices'
uuid = uuid_column()
product_uuid = Column(String(32), ForeignKey('products.uuid'), nullable=False)
type = Column(Integer)
level = Column(Integer)
starts = Column(DateTime)
ends = Column(DateTime)
price = Column(Numeric(8,3))
multiple = Column(Integer)
pack_price = Column(Numeric(8,3))
pack_multiple = Column(Integer)
def __repr__(self):
return "<ProductPrice: %s : %s>" % (self.product, self.price)
class Product(Base):
"""
Represents a product for sale and/or purchase.
"""
__tablename__ = 'products'
uuid = uuid_column()
upc = Column(GPCType, index=True)
department_uuid = Column(String(32), ForeignKey('departments.uuid'))
subdepartment_uuid = Column(String(32), ForeignKey('subdepartments.uuid'))
category_uuid = Column(String(32), ForeignKey('categories.uuid'))
brand_uuid = Column(String(32), ForeignKey('brands.uuid'))
description = Column(String(60))
description2 = Column(String(60))
size = Column(String(30))
unit_of_measure = Column(String(4))
regular_price_uuid = Column(
String(32),
ForeignKey('product_prices.uuid',
use_alter=True,
name='products_regular_price_uuid_fkey'))
current_price_uuid = Column(
String(32),
ForeignKey('product_prices.uuid',
use_alter=True,
name='products_current_price_uuid_fkey'))
department = relationship(Department)
subdepartment = relationship(Subdepartment)
category = relationship(Category)
brand = relationship(Brand)
costs = relationship(ProductCost, backref='product',
collection_class=ordering_list('preference', count_from=1),
order_by=ProductCost.preference)
def __repr__(self):
return "<Product: %s>" % self.description
def __unicode__(self):
return unicode(self.description or '')
Product.prices = relationship(
ProductPrice, backref='product',
primaryjoin=ProductPrice.product_uuid == Product.uuid)
Product.regular_price = relationship(
ProductPrice,
primaryjoin=Product.regular_price_uuid == ProductPrice.uuid,
lazy='joined',
post_update=True)
Product.current_price = relationship(
ProductPrice,
primaryjoin=Product.current_price_uuid == ProductPrice.uuid,
lazy='joined',
post_update=True)
Product.cost = relationship(
ProductCost,
primaryjoin=and_(
ProductCost.product_uuid == Product.uuid,
ProductCost.preference == 1,
),
uselist=False,
viewonly=True)
Product.vendor = relationship(
Vendor,
secondary=ProductCost.__table__,
primaryjoin=and_(
ProductCost.product_uuid == Product.uuid,
ProductCost.preference == 1,
),
secondaryjoin=Vendor.uuid == ProductCost.vendor_uuid,
uselist=False,
viewonly=True)
class EmployeeEmailAddress(EmailAddress):
"""
Represents an email address associated with a :class:`Employee`.
"""
__mapper_args__ = {'polymorphic_identity': 'Employee'}
class EmployeePhoneNumber(PhoneNumber):
"""
Represents a phone (or fax) number associated with a :class:`Employee`.
"""
__mapper_args__ = {'polymorphic_identity': 'Employee'}
class Employee(Base):
"""
Represents an employee within the organization.
"""
__tablename__ = 'employees'
uuid = uuid_column()
id = Column(Integer)
person_uuid = Column(String(32), ForeignKey('people.uuid'), nullable=False)
status = Column(Integer)
display_name = Column(String(100))
person = relationship(Person)
first_name = association_proxy('person', 'first_name')
last_name = association_proxy('person', 'last_name')
def __repr__(self):
return "<Employee: %s>" % self.person
def __unicode__(self):
return unicode(self.display_name or self.person)
def add_email_address(self, address, type='Home'):
email = EmployeeEmailAddress(address=address, type=type)
self.emails.append(email)
def add_phone_number(self, number, type='Home'):
phone = EmployeePhoneNumber(number=number, type=type)
self.phones.append(phone)
Employee.emails = relationship(
EmployeeEmailAddress,
backref='employee',
primaryjoin=EmployeeEmailAddress.parent_uuid == Employee.uuid,
foreign_keys=[EmployeeEmailAddress.parent_uuid],
collection_class=ordering_list('preference', count_from=1),
order_by=EmployeeEmailAddress.preference,
cascade='save-update, merge, delete, delete-orphan')
Employee.email = relationship(
EmployeeEmailAddress,
primaryjoin=and_(
EmployeeEmailAddress.parent_uuid == Employee.uuid,
EmployeeEmailAddress.preference == 1),
foreign_keys=[EmployeeEmailAddress.parent_uuid],
uselist=False,
viewonly=True)
Employee.phones = relationship(
EmployeePhoneNumber,
backref='employee',
primaryjoin=EmployeePhoneNumber.parent_uuid == Employee.uuid,
foreign_keys=[EmployeePhoneNumber.parent_uuid],
collection_class=ordering_list('preference', count_from=1),
order_by=EmployeePhoneNumber.preference,
cascade='save-update, merge, delete, delete-orphan')
Employee.phone = relationship(
EmployeePhoneNumber,
primaryjoin=and_(
EmployeePhoneNumber.parent_uuid == Employee.uuid,
EmployeePhoneNumber.preference == 1),
foreign_keys=[EmployeePhoneNumber.parent_uuid],
uselist=False,
viewonly=True)
class CustomerEmailAddress(EmailAddress):
"""
Represents an email address associated with a :class:`Customer`.
"""
__mapper_args__ = {'polymorphic_identity': 'Customer'}
class CustomerPhoneNumber(PhoneNumber):
"""
Represents a phone (or fax) number associated with a :class:`Customer`.
"""
__mapper_args__ = {'polymorphic_identity': 'Customer'}
class CustomerPerson(Base):
"""
Represents the association between a :class:`Person` and a customer account
(:class:`Customer`).
"""
__tablename__ = 'customers_people'
uuid = uuid_column()
customer_uuid = Column(String(32), ForeignKey('customers.uuid'))
person_uuid = Column(String(32), ForeignKey('people.uuid'))
ordinal = Column(Integer, nullable=False)
person = relationship(Person)
class Customer(Base):
"""
Represents a customer account. Customer accounts may consist of more than
one :class:`Person`, in some cases.
"""
__tablename__ = 'customers'
uuid = uuid_column()
id = Column(String(20))
name = Column(String(255))
def __repr__(self):
return "<Customer: %s, %s>" % (self.id, self.name or self.person)
def __unicode__(self):
return unicode(self.name or self.person)
def add_email_address(self, address, type='Home'):
email = CustomerEmailAddress(address=address, type=type)
self.emails.append(email)
def add_phone_number(self, number, type='Home'):
phone = CustomerPhoneNumber(number=number, type=type)
self.phones.append(phone)
Customer.emails = relationship(
CustomerEmailAddress,
backref='customer',
primaryjoin=CustomerEmailAddress.parent_uuid == Customer.uuid,
foreign_keys=[CustomerEmailAddress.parent_uuid],
collection_class=ordering_list('preference', count_from=1),
order_by=CustomerEmailAddress.preference,
cascade='save-update, merge, delete, delete-orphan')
Customer.email = relationship(
CustomerEmailAddress,
primaryjoin=and_(
CustomerEmailAddress.parent_uuid == Customer.uuid,
CustomerEmailAddress.preference == 1),
foreign_keys=[CustomerEmailAddress.parent_uuid],
uselist=False,
viewonly=True)
Customer.phones = relationship(
CustomerPhoneNumber,
backref='customer',
primaryjoin=CustomerPhoneNumber.parent_uuid == Customer.uuid,
foreign_keys=[CustomerPhoneNumber.parent_uuid],
collection_class=ordering_list('preference', count_from=1),
order_by=CustomerPhoneNumber.preference,
cascade='save-update, merge, delete, delete-orphan')
Customer.phone = relationship(
CustomerPhoneNumber,
primaryjoin=and_(
CustomerPhoneNumber.parent_uuid == Customer.uuid,
CustomerPhoneNumber.preference == 1),
foreign_keys=[CustomerPhoneNumber.parent_uuid],
uselist=False,
viewonly=True)
Customer._people = relationship(
CustomerPerson, backref='customer',
primaryjoin=CustomerPerson.customer_uuid == Customer.uuid,
collection_class=ordering_list('ordinal', count_from=1),
order_by=CustomerPerson.ordinal)
Customer.people = association_proxy(
'_people', 'person',
getset_factory=getset_factory,
creator=lambda x: CustomerPerson(person=x))
Customer._person = relationship(
CustomerPerson,
primaryjoin=and_(
CustomerPerson.customer_uuid == Customer.uuid,
CustomerPerson.ordinal == 1),
uselist=False,
viewonly=True)
Customer.person = association_proxy(
'_person', 'person',
getset_factory=getset_factory)
class CustomerGroup(Base):
"""
Represents an arbitrary group to which :class:`Customer` instances may (or
may not) belong.
"""
__tablename__ = 'customer_groups'
uuid = uuid_column()
id = Column(String(20))
name = Column(String(255))
def __repr__(self):
return "<CustomerGroup: %s, %s>" % (self.id, self.name)
def __unicode__(self):
return unicode(self.name or '')
class CustomerGroupAssignment(Base):
"""
Represents the assignment of a :class:`Customer` to a
:class:`CustomerGroup`.
"""
__tablename__ = 'customers_groups'
uuid = uuid_column()
customer_uuid = Column(String(32), ForeignKey('customers.uuid'))
group_uuid = Column(String(32), ForeignKey('customer_groups.uuid'))
ordinal = Column(Integer, nullable=False)
group = relationship(CustomerGroup)
Customer._groups = relationship(
CustomerGroupAssignment, backref='customer',
collection_class=ordering_list('ordinal', count_from=1),
order_by=CustomerGroupAssignment.ordinal)
Customer.groups = association_proxy(
'_groups', 'group',
getset_factory=getset_factory,
creator=lambda x: CustomerGroupAssignment(group=x))
class LabelProfile(Base):
"""
Represents a "profile" (collection of settings) for product label printing.
"""
__tablename__ = 'label_profiles'
uuid = uuid_column()
ordinal = Column(Integer)
code = Column(String(3))
description = Column(String(50))
printer_spec = Column(String(255))
formatter_spec = Column(String(255))
format = Column(Text)
_printer = None
_formatter = None
def __repr__(self):
return "<LabelProfile: %s>" % self.code
def __unicode__(self):
return unicode(self.description or '')
def get_formatter(self):
if not self._formatter and self.formatter_spec:
try:
formatter = edbob.load_spec(self.formatter_spec)
except LoadSpecError:
pass
else:
self._formatter = formatter()
return self._formatter
def get_printer(self):
if not self._printer and self.printer_spec:
try:
printer = edbob.load_spec(self.printer_spec)
except LoadSpecError:
pass
else:
self._printer = printer()
for name in printer.required_settings:
setattr(printer, name, self.get_printer_setting(name))
self._printer.formatter = self.get_formatter()
return self._printer
def get_printer_setting(self, name):
session = object_session(self)
if not self.uuid:
session.flush()
name = 'labels.%s.printer.%s' % (self.uuid, name)
return edbob.get_setting(name, session)
def save_printer_setting(self, name, value):
session = object_session(self)
if not self.uuid:
session.flush()
name = 'labels.%s.printer.%s' % (self.uuid, name)
edbob.save_setting(name, value, session)
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