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# This file is part of Tryton. The COPYRIGHT file at the top level of
# this repository contains the full copyright notices and license terms.
from trytond.i18n import gettext
from trytond.model import ModelSQL, ModelView, fields
from trytond.pool import Pool
from trytond.pyson import Equal, Eval, If, In, Not
from trytond.transaction import Transaction
from .exceptions import OrderPointValidationError
class OrderPoint(ModelSQL, ModelView):
"""
Order Point
Provide a way to define a supply policy for each
product on each locations. Order points on warehouse are
considered by the supply scheduler to generate purchase requests.
"""
__name__ = 'stock.order_point'
product = fields.Many2One(
'product.product', "Product", required=True,
domain=[
('type', '=', 'goods'),
('consumable', '=', False),
('purchasable', 'in', If(Equal(Eval('type'), 'purchase'),
[True], [True, False])),
],
context={
'company': Eval('company', -1),
},
depends={'company'})
warehouse_location = fields.Many2One(
'stock.location', 'Warehouse Location',
domain=[('type', '=', 'warehouse')],
states={
'invisible': Not(Equal(Eval('type'), 'purchase')),
'required': Equal(Eval('type'), 'purchase'),
})
storage_location = fields.Many2One(
'stock.location', "Storage Location",
domain=[('type', '=', 'storage')],
states={
'invisible': Not(Equal(Eval('type'), 'internal')),
'required': Equal(Eval('type'), 'internal'),
})
location = fields.Function(fields.Many2One('stock.location', 'Location'),
'get_location', searcher='search_location')
provisioning_location = fields.Many2One(
'stock.location', 'Provisioning Location',
domain=[('type', 'in', ['storage', 'view'])],
states={
'invisible': Not(Equal(Eval('type'), 'internal')),
'required': ((Eval('type') == 'internal')
& (Eval('min_quantity', None) != None)), # noqa: E711
})
overflowing_location = fields.Many2One(
'stock.location', 'Overflowing Location',
domain=[('type', 'in', ['storage', 'view'])],
states={
'invisible': Eval('type') != 'internal',
'required': ((Eval('type') == 'internal')
& (Eval('max_quantity', None) != None)), # noqa: E711
})
type = fields.Selection(
[('internal', 'Internal'),
('purchase', 'Purchase')],
"Type", required=True)
min_quantity = fields.Float(
"Minimal Quantity", digits='unit',
states={
# required for purchase and production types
'required': Eval('type') != 'internal',
},
domain=['OR',
('min_quantity', '=', None),
('min_quantity', '<=', Eval('target_quantity', 0)),
])
target_quantity = fields.Float(
"Target Quantity", digits='unit', required=True,
domain=[
['OR',
('min_quantity', '=', None),
('target_quantity', '>=', Eval('min_quantity', 0)),
],
['OR',
('max_quantity', '=', None),
('target_quantity', '<=', Eval('max_quantity', 0)),
],
])
max_quantity = fields.Float(
"Maximal Quantity", digits='unit',
states={
'invisible': Eval('type') != 'internal',
},
domain=['OR',
('max_quantity', '=', None),
('max_quantity', '>=', Eval('target_quantity', 0)),
])
company = fields.Many2One('company.company', 'Company', required=True,
domain=[
('id', If(In('company', Eval('context', {})), '=', '!='),
Eval('context', {}).get('company', -1)),
])
unit = fields.Function(fields.Many2One('product.uom', 'Unit'), 'get_unit')
@staticmethod
def default_type():
return "purchase"
@classmethod
def default_warehouse_location(cls):
return Pool().get('stock.location').get_default_warehouse()
@fields.depends('product', '_parent_product.default_uom')
def on_change_product(self):
self.unit = None
if self.product:
self.unit = self.product.default_uom
def get_unit(self, name):
return self.product.default_uom.id
@classmethod
def validate(cls, orderpoints):
super(OrderPoint, cls).validate(orderpoints)
cls.check_concurrent_internal(orderpoints)
cls.check_uniqueness(orderpoints)
@classmethod
def check_concurrent_internal(cls, orders):
"""
Ensure that there is no 'concurrent' internal order
points. I.E. no two order point with opposite location for the
same product and same company.
"""
internals = cls.browse([o for o in orders if o.type == 'internal'])
if not internals:
return
for location_name in [
'provisioning_location', 'overflowing_location']:
query = []
for op in internals:
if getattr(op, location_name, None) is None:
continue
arg = ['AND',
('product', '=', op.product.id),
(location_name, '=', op.storage_location.id),
('storage_location', '=',
getattr(op, location_name).id),
('company', '=', op.company.id),
('type', '=', 'internal')]
query.append(arg)
if query and cls.search(['OR'] + query):
raise OrderPointValidationError(
gettext('stock_supply'
'.msg_order_point_concurrent_%s_internal' %
location_name))
@staticmethod
def _type2field(type=None):
t2f = {
'purchase': 'warehouse_location',
'internal': 'storage_location',
}
if type is None:
return t2f
else:
return t2f[type]
@classmethod
def check_uniqueness(cls, orders):
"""
Ensure uniqueness of order points. I.E that there is no several
order point for the same location, the same product and the
same company.
"""
query = ['OR']
for op in orders:
field = cls._type2field(op.type)
arg = ['AND',
('product', '=', op.product.id),
(field, '=', getattr(op, field).id),
('id', '!=', op.id),
('company', '=', op.company.id),
]
query.append(arg)
if cls.search(query):
raise OrderPointValidationError(
gettext('stock_supply.msg_order_point_unique'))
def get_rec_name(self, name):
return "%s @ %s" % (self.product.name, self.location.name)
@classmethod
def search_rec_name(cls, name, clause):
_, operator, value = clause
if operator.startswith('!') or operator.startswith('not '):
bool_op = 'AND'
else:
bool_op = 'OR'
return [bool_op,
('location.rec_name', *clause[1:]),
('product.rec_name', *clause[1:]),
]
def get_location(self, name):
if self.type == 'purchase':
return self.warehouse_location.id
elif self.type == 'internal':
return self.storage_location.id
@classmethod
def search_location(cls, name, domain=None):
clauses = ['OR']
for type, field in cls._type2field().items():
clauses.append([
('type', '=', type),
(field,) + tuple(domain[1:]),
])
return clauses
@staticmethod
def default_company():
return Transaction().context.get('company')
@classmethod
def supply_stock(cls):
pool = Pool()
StockSupply = pool.get('stock.supply', type='wizard')
session_id, _, _ = StockSupply.create()
StockSupply.execute(session_id, {}, 'create_')
StockSupply.delete(session_id)
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