# Copyright (C) 2015 Chintalagiri Shashank
#
# This file is part of Tendril.
#
# This program 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.
#
# This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
"""
This file is part of tendril
See the COPYING, README, and INSTALL files for more information
"""
from sqlalchemy import Column, String, Enum
from sqlalchemy import Index
from sqlalchemy.orm import synonym
from sqlalchemy import UniqueConstraint
from sqlalchemy import Integer, ForeignKey
from sqlalchemy.orm import relationship
from sqlalchemy.orm import backref
from tendril.utils.db import DeclBase
from tendril.utils.db import BaseMixin
from tendril.utils.db import TimestampMixin
from tendril.utils import log
logger = log.get_logger(__name__, log.DEFAULT)
[docs]class SourcingVendor(BaseMixin, DeclBase):
name = Column(String, nullable=False, unique=True)
dname = Column(String, nullable=True, unique=False)
type = Column(String, nullable=False, unique=False)
mapfile_base = Column(String, nullable=False, unique=True)
pclass_str = Column(String, nullable=False, unique=False)
status = Column(
Enum('active', 'suspended', 'defunct', name='vendor_status'),
nullable=False,
default='active',
server_default='active'
)
# Derived Fields
@property
def pclass(self):
return self.pclass_str.split(':')
@pclass.setter
def pclass(self, value):
self.pclass_str = ":".join([x.strip() for x in value])
pclass = synonym('pclass_str', descriptor=pclass)
# Relationships
# Housekeeping
def __repr__(self):
return "<SourcingVendor " \
"(id = %s, name='%s')>" % (self.id, self.name)
[docs]class SourcingVendorDetail(DeclBase, BaseMixin):
dname = Column(String, unique=False, nullable=False)
currency_code = Column(String, unique=False, nullable=False)
currency_symbol = Column(String, unique=False, nullable=False)
# Relationships
vendor_id = Column(Integer, ForeignKey('SourcingVendor.id'),
unique=True, nullable=False)
vendor = relationship(
"SourcingVendor",
backref=backref('detail', cascade='all, delete-orphan'),
lazy='joined'
)
[docs]class VendorPartMap(DeclBase, BaseMixin, TimestampMixin):
ident = Column(String, unique=False, nullable=False)
strategy = Column(String, unique=False, nullable=True)
# Derived Fields
@property
def umap(self):
return [x for x in self.vpnos if x.type == 'manual']
@property
def amap(self):
return [x for x in self.vpnos if x.type == 'auto']
@property
def map(self):
return self.vpnos
# Relationships
vendor_id = Column(Integer, ForeignKey('SourcingVendor.id'),
unique=False, nullable=False)
vendor = relationship(
"SourcingVendor",
backref=backref('maps', cascade='all, delete-orphan')
)
# Constraints
__table_args__ = (
UniqueConstraint('vendor_id', 'ident', name="constraint_vmap_ident"),
Index('ix_vid_ident', 'vendor_id', 'ident')
)
[docs]class VendorPartNumber(DeclBase, BaseMixin, TimestampMixin):
vpno = Column(String, unique=False, nullable=False)
type = Column(
Enum('auto', 'manual', name='map_type'),
nullable=False,
default='auto',
server_default='auto'
)
# Relationships
vpmap_id = Column(Integer, ForeignKey('VendorPartMap.id'),
unique=False, nullable=False, index=True)
vpmap = relationship(
"VendorPartMap",
backref=backref('vpnos', cascade='all, delete-orphan'),
)
# Constraints
__table_args__ = (
UniqueConstraint('vpmap_id', 'vpno', name="constraint_vmap_vpno"),
Index('ix_vpmap_vpno', 'vpmap_id', 'vpno')
)
# TODO Add vpno <-> vendor constraint?
[docs]class VendorPartDetail(DeclBase, BaseMixin, TimestampMixin):
vqtyavail = Column(Integer, unique=False, nullable=True)
manufacturer = Column(String, unique=False, nullable=True)
mpartno = Column(String, unique=False, nullable=True)
vpartdesc = Column(String, unique=False, nullable=True)
pkgqty = Column(Integer, unique=False, nullable=True)
vparturl = Column(String, unique=False, nullable=True)
# Relationships
vpno_id = Column(Integer,
ForeignKey('VendorPartNumber.id'),
unique=True, nullable=False, index=True)
vpno = relationship(
"VendorPartNumber",
backref=backref('detail', cascade='all, delete-orphan', uselist=False),
lazy='joined',
)
[docs]class VendorElnPartDetail(DeclBase, BaseMixin):
package = Column(String, unique=False, nullable=True)
datasheet = Column(String, unique=False, nullable=True)
# Relationships
vpno_id = Column(Integer,
ForeignKey('VendorPartNumber.id'),
unique=True, nullable=False, index=True)
vpno = relationship(
"VendorPartNumber",
backref=backref('detail_eln', cascade='all, delete-orphan', uselist=False),
lazy='joined',
)
[docs]class VendorPrice(DeclBase, BaseMixin, TimestampMixin):
moq = Column(Integer, unique=False, nullable=False)
price = Column(String, unique=False, nullable=False)
oqmultiple = Column(Integer, unique=False, nullable=False)
# Relationships
vpno_id = Column(Integer, ForeignKey('VendorPartNumber.id'),
unique=False, nullable=False, index=True)
vpno = relationship(
"VendorPartNumber",
backref=backref('prices', cascade='all, delete-orphan'),
lazy='joined',
)