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tryton/modules/stock/product.py
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2022-12-16 15:33:29 +01:00

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45 KiB
Python

# This file is part of Tryton. The COPYRIGHT file at the top level of
# this repository contains the full copyright notices and license terms.
import datetime
import functools
from decimal import Decimal
from collections import defaultdict
from copy import deepcopy
from simpleeval import simple_eval
from sql import Literal, Select, Window, With
from sql.aggregate import Max, Sum
from sql.conditionals import Coalesce, Case
from sql.functions import CurrentTimestamp
from sql.operators import Concat
from trytond.i18n import gettext
from trytond.model import ModelSQL, ModelView, fields
from trytond.model.exceptions import AccessError
from trytond.wizard import (
Wizard, StateTransition, StateAction, StateView, Button)
from trytond.pyson import Eval, If, Bool, PYSONEncoder
from trytond.tools import decistmt
from trytond.transaction import Transaction
from trytond.pool import Pool, PoolMeta
from trytond.tools import grouped_slice
from trytond.modules.product import round_price, price_digits
from .exceptions import ProductCostPriceError
from .move import StockMixin
from .shipment import ShipmentAssignMixin
def check_no_move(func):
def find_moves(cls, records):
pool = Pool()
Move = pool.get('stock.move')
if cls.__name__ == 'product.template':
field = 'product.template'
else:
field = 'product'
for sub_records in grouped_slice(records):
moves = Move.search([
(field, 'in', list(map(int, sub_records))),
],
limit=1, order=[])
if moves:
return moves
return False
@functools.wraps(func)
def decorator(cls, *args):
pool = Pool()
Template = pool.get('product.template')
transaction = Transaction()
if (transaction.user != 0
and transaction.context.get('_check_access')):
actions = iter(args)
for records, values in zip(actions, actions):
for field, msg in Template._modify_no_move:
if field in values:
if find_moves(cls, records):
raise AccessError(gettext(msg))
# No moves for those records
break
if not values.get('template'):
continue
template = Template(values['template'])
for record in records:
for field, msg in Template._modify_no_move:
if isinstance(
getattr(Template, field), fields.Function):
continue
if getattr(record, field) != getattr(template, field):
if find_moves(cls, [record]):
raise AccessError(gettext(msg))
# No moves for this record
break
func(cls, *args)
return decorator
class Template(metaclass=PoolMeta):
__name__ = "product.template"
quantity = fields.Function(fields.Float('Quantity',
help="The amount of stock in the location."),
'sum_product')
forecast_quantity = fields.Function(fields.Float('Forecast Quantity',
help="The amount of stock expected to be in the location."),
'sum_product')
cost_value = fields.Function(fields.Numeric('Cost Value',
help="The value of the stock in the location."),
'sum_product')
def sum_product(self, name):
if name not in ('quantity', 'forecast_quantity', 'cost_value'):
raise Exception('Bad argument')
sum_ = 0. if name != 'cost_value' else Decimal(0)
for product in self.products:
sum_ += getattr(product, name)
return sum_
@classmethod
def __setup__(cls):
super().__setup__()
cls._modify_no_move = [
('default_uom', 'stock.msg_product_change_default_uom'),
('type', 'stock.msg_product_change_type'),
('cost_price', 'stock.msg_product_change_cost_price'),
]
@classmethod
@check_no_move
def write(cls, *args):
super(Template, cls).write(*args)
@classmethod
def recompute_cost_price(cls, templates, start=None):
pool = Pool()
Product = pool.get('product.product')
products = [p for t in templates for p in t.products]
Product.recompute_cost_price(products, start=start)
class Product(StockMixin, object, metaclass=PoolMeta):
__name__ = "product.product"
quantity = fields.Function(fields.Float(
"Quantity", digits=(16, Eval('default_uom_digits', 2)),
depends=['default_uom_digits'],
help="The amount of stock in the location."),
'get_quantity', searcher='search_quantity')
forecast_quantity = fields.Function(fields.Float(
"Forecast Quantity", digits=(16, Eval('default_uom_digits', 2)),
depends=['default_uom_digits'],
help="The amount of stock expected to be in the location."),
'get_quantity', searcher='search_quantity')
cost_value = fields.Function(fields.Numeric(
"Cost Value", digits=price_digits,
help="The value of the stock in the location."),
'get_cost_value')
@classmethod
def get_quantity(cls, products, name):
location_ids = Transaction().context.get('locations')
product_ids = list(map(int, products))
return cls._get_quantity(
products, name, location_ids, grouping_filter=(product_ids,))
@classmethod
def search_quantity(cls, name, domain=None):
location_ids = Transaction().context.get('locations')
return cls._search_quantity(name, location_ids, domain)
@classmethod
def get_cost_value(cls, products, name):
cost_values = {p.id: None for p in products}
context = {}
trans_context = Transaction().context
if trans_context.get('stock_date_end'):
# Use the last cost_price of the day
context['_datetime'] = datetime.datetime.combine(
trans_context['stock_date_end'], datetime.time.max)
# The date could be before the product creation
products = [p for p in products
if p.create_date <= context['_datetime']]
with Transaction().set_context(context):
for product in cls.browse(products):
# The product may not have a cost price
if product.cost_price is not None:
cost_values[product.id] = round_price(
Decimal(str(product.quantity)) * product.cost_price)
return cost_values
@classmethod
@check_no_move
def write(cls, *args):
super(Product, cls).write(*args)
@classmethod
def products_by_location(cls, location_ids,
with_childs=False, grouping=('product',), grouping_filter=None):
"""
Compute for each location and product the stock quantity in the default
uom of the product.
The context with keys:
stock_skip_warehouse: if set, quantities on a warehouse are no more
quantities of all child locations but quantities of the storage
zone.
Return a dictionary with location id and grouping as key
and quantity as value.
"""
pool = Pool()
Location = pool.get('stock.location')
Move = pool.get('stock.move')
# Skip warehouse location in favor of their storage location
# to compute quantities. Keep track of which ids to remove
# and to add after the query.
storage_to_remove = set()
wh_to_add = {}
if Transaction().context.get('stock_skip_warehouse'):
location_ids = set(location_ids)
for location in Location.browse(list(location_ids)):
if location.type == 'warehouse':
location_ids.remove(location.id)
if location.storage_location.id not in location_ids:
storage_to_remove.add(location.storage_location.id)
location_ids.add(location.storage_location.id)
wh_to_add[location.id] = location.storage_location.id
location_ids = list(location_ids)
query = Move.compute_quantities_query(location_ids, with_childs,
grouping=grouping, grouping_filter=grouping_filter)
if query is None:
return {}
quantities = Move.compute_quantities(query, location_ids, with_childs,
grouping=grouping, grouping_filter=grouping_filter)
if wh_to_add:
for wh, storage in wh_to_add.items():
for key in list(quantities.keys()):
if key[0] == storage:
quantities[(wh,) + key[1:]] = quantities[key]
if storage in storage_to_remove:
del quantities[key]
return quantities
@classmethod
def recompute_cost_price_from_moves(cls):
pool = Pool()
Move = pool.get('stock.move')
products = set()
for move in Move.search([
('unit_price_updated', '=', True),
cls._domain_moves_cost(),
],
order=[('effective_date', 'ASC')]):
if move.product not in products:
cls.__queue__.recompute_cost_price(
[move.product], start=move.effective_date)
products.add(move.product)
@classmethod
def recompute_cost_price(cls, products, start=None):
pool = Pool()
Move = pool.get('stock.move')
costs = defaultdict(list)
for product in products:
if product.type == 'service':
continue
cost = getattr(
product, 'recompute_cost_price_%s' %
product.cost_price_method)(start)
cost = round_price(cost)
costs[cost].append(product)
updated = []
for sub_products in grouped_slice(products):
domain = [
('unit_price_updated', '=', True),
cls._domain_moves_cost(),
('product', 'in', [p.id for p in sub_products]),
]
if start:
domain.append(('effective_date', '>=', start))
updated += Move.search(domain, order=[])
if updated:
Move.write(updated, {'unit_price_updated': False})
if costs:
cls.update_cost_price(costs)
@classmethod
def update_cost_price(cls, costs):
"Update cost price of products from costs re-computation dictionary"
to_write = []
for cost, products in costs.items():
to_write.append(products)
to_write.append({'cost_price': cost})
with Transaction().set_context(_check_access=False):
cls.write(*to_write)
def recompute_cost_price_fixed(self, start=None):
return self.cost_price
@classmethod
def _domain_moves_cost(cls):
"Returns the domain for moves to use in cost computation"
context = Transaction().context
return [
('company', '=', context.get('company')),
('state', '=', 'done'),
]
@classmethod
def _domain_in_moves_cost(cls):
"Return the domain for incoming moves in cost computation"
return [
('to_location.type', '=', 'storage'),
('from_location.type', '!=', 'storage'),
]
@classmethod
def _domain_out_moves_cost(cls):
"Return the domain for outgoing moves in cost computation"
return [
('from_location.type', '=', 'storage'),
('to_location.type', '!=', 'storage'),
]
@classmethod
def _domain_storage_quantity(cls):
"Returns the domain for locations to use in cost computation"
return [('type', '=', 'storage')]
def _get_storage_quantity(self, date=None):
pool = Pool()
Location = pool.get('stock.location')
locations = Location.search(self._domain_storage_quantity())
if not date:
date = datetime.date.today()
location_ids = [l.id for l in locations]
with Transaction().set_context(
locations=location_ids,
with_childs=False,
stock_date_end=date):
return self.__class__(self.id).quantity
def recompute_cost_price_average(self, start=None):
pool = Pool()
Move = pool.get('stock.move')
Uom = pool.get('product.uom')
Revision = pool.get('product.cost_price.revision')
domain = [
('product', '=', self.id),
self._domain_moves_cost(),
['OR',
self._domain_in_moves_cost(),
self._domain_out_moves_cost(),
]
]
if start:
domain.append(('effective_date', '>=', start))
moves = Move.search(
domain, order=[('effective_date', 'ASC'), ('id', 'ASC')])
_in_moves = Move.search([
('product', '=', self.id),
self._domain_moves_cost(),
self._domain_in_moves_cost(),
], order=[])
_in_moves = set(m.id for m in _in_moves)
revisions = Revision.get_for_product(self)
cost_price = Decimal(0)
quantity = 0
if start:
domain.remove(('effective_date', '>=', start))
domain.append(('effective_date', '<', start))
domain.append(self._domain_in_moves_cost())
prev_moves = Move.search(
domain,
order=[('effective_date', 'DESC'), ('id', 'DESC')],
limit=1)
if prev_moves:
move, = prev_moves
cost_price = move.cost_price
quantity = self._get_storage_quantity(
date=start - datetime.timedelta(days=1))
quantity = Decimal(str(quantity))
def in_move(move):
return move.id in _in_moves
def out_move(move):
return not in_move(move)
current_moves = []
current_cost_price = cost_price
for move in moves:
if (current_moves
and current_moves[-1].effective_date
!= move.effective_date):
Move.write([
m for m in current_moves
if m.cost_price != current_cost_price],
dict(cost_price=current_cost_price))
current_moves.clear()
current_moves.append(move)
cost_price = Revision.apply_up_to(
revisions, cost_price, move.effective_date)
qty = Uom.compute_qty(move.uom, move.quantity, self.default_uom)
qty = Decimal(str(qty))
if out_move(move):
qty *= -1
if in_move(move):
unit_price = move.get_cost_price(product_cost_price=cost_price)
if quantity + qty > 0 and quantity >= 0:
cost_price = (
(cost_price * quantity) + (unit_price * qty)
) / (quantity + qty)
elif qty > 0:
cost_price = unit_price
current_cost_price = round_price(cost_price)
quantity += qty
Move.write([
m for m in current_moves
if m.cost_price != current_cost_price],
dict(cost_price=current_cost_price))
for revision in revisions:
cost_price = revision.get_cost_price(cost_price)
return cost_price
@classmethod
def view_attributes(cls):
return super().view_attributes() + [
('/tree/field[@name="quantity"]',
'visual', If(Eval('quantity', 0) < 0, 'danger', '')),
('/tree/field[@name="forecast_quantity"]',
'visual', If(Eval('forecast_quantity', 0) < 0, 'warning', '')),
]
class ProductByLocationContext(ModelView):
'Product by Location'
__name__ = 'product.by_location.context'
forecast_date = fields.Date(
'At Date',
help="The date for which the stock quantity is calculated.\n"
"* An empty value calculates as far ahead as possible.\n"
"* A date in the past will provide historical values.")
stock_date_end = fields.Function(fields.Date('At Date'),
'on_change_with_stock_date_end')
@staticmethod
def default_forecast_date():
Date = Pool().get('ir.date')
return Date.today()
@fields.depends('forecast_date')
def on_change_with_stock_date_end(self, name=None):
if self.forecast_date is None:
return datetime.date.max
return self.forecast_date
class OpenProductQuantitiesByWarehouse(Wizard):
"Open Product Quantities By Warehouse"
__name__ = 'stock.product_quantities_warehouse.open'
start_state = 'open_'
open_ = StateAction('stock.act_product_quantities_warehouse')
def do_open_(self, action):
encoder = PYSONEncoder()
action['pyson_context'] = encoder.encode(self.get_context())
action['pyson_search_value'] = encoder.encode(self.get_search_value())
action['pyson_domain'] = encoder.encode(self.get_domain())
action['name'] += '(' + self.record.rec_name + ')'
return action, {}
def get_context(self):
context = {}
if issubclass(self.model, ShipmentAssignMixin):
context['product_template'] = None
context['product'] = [
m.product.id for m in self.record.assign_moves]
warehouse = getattr(self.record, 'warehouse', None)
if self.model == 'stock.shipment.internal':
warehouse = self.record.from_location.warehouse
if warehouse:
context['warehouse'] = warehouse.id
return context
def get_search_value(self):
pool = Pool()
Date = pool.get('ir.date')
today = Date.today()
value = [('date', '>=', today)]
if (getattr(self.record, 'planned_date', None)
and self.record.planned_date >= today):
value.append(('date', '<=', self.record.planned_date))
return value
def get_domain(self):
if issubclass(self.model, ShipmentAssignMixin):
return [('product', 'in', [
str(m.product) for m in self.record.assign_moves])]
return []
class ProductQuantitiesByWarehouse(ModelSQL, ModelView):
'Product Quantities By Warehouse'
__name__ = 'stock.product_quantities_warehouse'
class _Date(fields.Date):
def get(self, ids, model, name, values=None):
if values is None:
values = {}
result = {}
for v in values:
date = v[name]
# SQLite does not convert to date
if isinstance(date, str):
date = datetime.date(*map(int, date.split('-', 2)))
result[v['id']] = date
return result
product = fields.Reference("Product", [
('product.product', "Variant"),
('product.template', "Product"),
])
date = _Date('Date')
quantity = fields.Function(fields.Float('Quantity'), 'get_quantity')
company = fields.Many2One('company.company', "Company")
del _Date
@classmethod
def __setup__(cls):
super(ProductQuantitiesByWarehouse, cls).__setup__()
cls._order.insert(0, ('date', 'ASC'))
@classmethod
def table_query(cls):
pool = Pool()
Move = pool.get('stock.move')
Location = pool.get('stock.location')
Product = pool.get('product.product')
Date = pool.get('ir.date')
move = from_ = Move.__table__()
context = Transaction().context
today = Date.today()
if context.get('product_template') is not None:
product_template = context['product_template']
if isinstance(product_template, int):
product_template = [product_template]
product = Product.__table__()
from_ = move.join(product, condition=move.product == product.id)
product_clause = product.template.in_(product_template or [-1])
product_column = Concat('product.template,', product.template)
products = [('product.template', i) for i in product_template]
else:
product = context.get('product')
if product is None:
product = []
if isinstance(product, int):
product = [product]
product_clause = move.product.in_(product or [-1])
product_column = Concat('product.product,', move.product)
products = [('product.product', i) for i in product]
if 'warehouse' in context:
warehouse = Location(context.get('warehouse'))
if context.get('stock_skip_warehouse'):
location_id = warehouse.storage_location.id
else:
location_id = warehouse.id
else:
location_id = -1
warehouse = With('id', query=Location.search([
('parent', 'child_of', [location_id]),
], query=True, order=[]))
date_column = Coalesce(move.effective_date, move.planned_date)
query = (from_.select(
Max(move.id * 3).as_('id'),
Literal(0).as_('create_uid'),
CurrentTimestamp().as_('create_date'),
Literal(None).as_('write_uid'),
Literal(None).as_('write_date'),
product_column.as_('product'),
date_column.as_('date'),
move.company.as_('company'),
where=product_clause
& (
(move.from_location.in_(
warehouse.select(warehouse.id))
& ~move.to_location.in_(
warehouse.select(warehouse.id)))
| (~move.from_location.in_(
warehouse.select(warehouse.id))
& move.to_location.in_(
warehouse.select(warehouse.id))))
& ((date_column < today) & (move.state == 'done')
| (date_column > today)),
group_by=(date_column, product_column, move.company),
with_=warehouse))
for model, id_ in products:
gap = ['product.template', 'product.product'].index(model) + 1
query |= Select([
Literal(id_ * 3 + gap).as_('id'),
Literal(0).as_('create_uid'),
CurrentTimestamp().as_('create_date'),
Literal(None).as_('write_uid'),
Literal(None).as_('write_date'),
Literal('%s,%s' % (model, id_)).as_('product'),
Literal(today).as_('date'),
Literal(context.get('company', -1)).as_('company'),
])
return query
@classmethod
def parse_view(cls, tree, type, *args, **kwargs):
pool = Pool()
Product = pool.get('product.product')
Template = pool.get('product.template')
context = Transaction().context
if kwargs.get('view_depends') is None:
view_depends = []
else:
view_depends = kwargs['view_depends'].copy()
kwargs['view_depends'] = view_depends
if type == 'graph':
encoder = PYSONEncoder()
if context.get('product_template') is not None:
product_template = context['product_template']
if isinstance(product_template, int):
product_template = [product_template]
records = Template.browse(product_template)
elif context.get('product'):
product = context['product']
if product is None:
product = -1
if isinstance(product, int):
product = [product]
records = Product.browse(product)
else:
records = []
if len(records) > 1:
quantity_node, = tree.xpath('//y/field[@name="quantity"]')
parent = quantity_node.getparent()
parent.remove(quantity_node)
for record in records:
node = deepcopy(quantity_node)
node.set('key', str(record.id))
node.set('string', record.rec_name)
node.set('domain', encoder.encode(
Eval('product') == str(record)))
node.set('fill', '0')
parent.append(node)
graph, = tree.xpath('/graph')
graph.set('legend', '1')
view_depends.append('product')
return super().parse_view(tree, type, *args, **kwargs)
@classmethod
def get_quantity(cls, lines, name):
Product = Pool().get('product.product')
trans_context = Transaction().context
if trans_context.get('product_template') is not None:
grouping = ('product.template',)
product_template = trans_context['product_template']
if isinstance(product_template, int):
product_template = [product_template]
grouping_filter = (product_template,)
else:
grouping = ('product',)
product = trans_context.get('product', -1)
if product is None:
product = -1
if isinstance(product, int):
product = [product]
grouping_filter = (product,)
warehouse_id = trans_context.get('warehouse')
def cast_date(date):
if isinstance(date, str):
date = datetime.date(*map(int, date.split('-', 2)))
return date
dates = sorted({cast_date(l.date) for l in lines})
quantities = {}
keys = set()
date_start = None
for date in dates:
context = {
'stock_date_start': date_start,
'stock_date_end': date,
'forecast': True,
}
with Transaction().set_context(**context):
quantities[date] = Product.products_by_location(
[warehouse_id],
grouping=grouping,
grouping_filter=grouping_filter,
with_childs=True)
keys.update(quantities[date])
try:
date_start = date + datetime.timedelta(1)
except OverflowError:
pass
cumulate = defaultdict(lambda: 0)
for date in dates:
for key in keys:
cumulate[key] += quantities[date][key]
quantities[date][key] = cumulate[key]
return {
l.id: quantities[cast_date(l.date)].get(
(warehouse_id, int(l.product)), 0)
for l in lines}
def get_rec_name(self, name):
return self.product.rec_name if self.product else ''
class ProductQuantitiesByWarehouseContext(ModelView):
'Product Quantities By Warehouse'
__name__ = 'stock.product_quantities_warehouse.context'
warehouse = fields.Many2One('stock.location', 'Warehouse', required=True,
domain=[
('type', '=', 'warehouse'),
],
help="The warehouse for which the quantities will be calculated.")
stock_skip_warehouse = fields.Boolean(
"Only storage zone",
help="Check to use only the quantity of the storage zone.")
@classmethod
def default_warehouse(cls):
Location = Pool().get('stock.location')
return Location.get_default_warehouse()
@classmethod
def default_stock_skip_warehouse(cls):
return Transaction().context.get('stock_skip_warehouse')
class OpenProductQuantitiesByWarehouseMove(Wizard):
"Open Product Quantities By Warehouse Moves"
__name__ = 'stock.product_quantities_warehouse.move.open'
start_state = 'open_'
open_ = StateAction('stock.act_product_quantities_warehouse_move')
def do_open_(self, action):
encoder = PYSONEncoder()
action['pyson_context'] = '{}'
action['pyson_search_value'] = encoder.encode(
[('date', '>=', self.record.date)])
action['pyson_domain'] = encoder.encode(
[('product', '=', str(self.record.product))])
action['name'] += ' (' + self.record.rec_name + ')'
return action, {}
class ProductQuantitiesByWarehouseMove(ModelSQL, ModelView):
"Product Quantities By Warehouse Moves"
__name__ = 'stock.product_quantities_warehouse.move'
product = fields.Reference("Product", [
('product.product', "Variant"),
('product.template', "Product"),
])
date = fields.Date("Date")
move = fields.Many2One('stock.move', "Move")
origin = fields.Reference("Origin", selection='get_origin')
document = fields.Function(
fields.Reference("Document", selection='get_documents'),
'get_document')
quantity = fields.Float("Quantity")
cumulative_quantity_start = fields.Function(
fields.Float("Cumulative Quantity Start"), 'get_cumulative_quantity')
cumulative_quantity_delta = fields.Float("Cumulative Quantity Delta")
cumulative_quantity_end = fields.Function(
fields.Float("Cumulative Quantity End"), 'get_cumulative_quantity')
company = fields.Many2One('company.company', "Company")
@classmethod
def __setup__(cls):
super().__setup__()
cls._order.insert(0, ('date', 'ASC'))
@classmethod
def table_query(cls):
pool = Pool()
Date = pool.get('ir.date')
Location = pool.get('stock.location')
Move = pool.get('stock.move')
Product = pool.get('product.product')
move = from_ = Move.__table__()
transaction = Transaction()
context = transaction.context
database = transaction.database
today = Date.today()
if context.get('product_template') is not None:
product_template = context['product_template']
if isinstance(product_template, int):
product_template = [product_template]
product = Product.__table__()
from_ = move.join(product, condition=move.product == product.id)
product_clause = product.template.in_(product_template or [-1])
product_column = Concat('product.template,', product.template)
else:
product = context.get('product', -1)
if product is None:
product = -1
if isinstance(product, int):
product = [product]
product_clause = move.product.in_(product or [-1])
product_column = Concat('product.product,', move.product)
if 'warehouse' in context:
warehouse = Location(context.get('warehouse'))
if context.get('stock_skip_warehouse'):
location_id = warehouse.storage_location.id
else:
location_id = warehouse.id
else:
location_id = -1
warehouse = With('id', query=Location.search([
('parent', 'child_of', [location_id]),
], query=True, order=[]))
date_column = Coalesce(move.effective_date, move.planned_date)
quantity = Case(
(move.to_location.in_(warehouse.select(warehouse.id)),
move.internal_quantity),
else_=-move.internal_quantity)
if database.has_window_functions():
cumulative_quantity_delta = Sum(
quantity,
window=Window(
[product_column, date_column], order_by=[move.id.asc]))
else:
cumulative_quantity_delta = Literal(0)
return (from_.select(
move.id.as_('id'),
Literal(0).as_('create_uid'),
CurrentTimestamp().as_('create_date'),
Literal(None).as_('write_uid'),
Literal(None).as_('write_date'),
product_column.as_('product'),
date_column.as_('date'),
move.id.as_('move'),
move.origin.as_('origin'),
quantity.as_('quantity'),
cumulative_quantity_delta.as_('cumulative_quantity_delta'),
move.company.as_('company'),
where=product_clause
& (
(move.from_location.in_(
warehouse.select(warehouse.id))
& ~move.to_location.in_(
warehouse.select(warehouse.id)))
| (~move.from_location.in_(
warehouse.select(warehouse.id))
& move.to_location.in_(
warehouse.select(warehouse.id))))
& ((date_column < today) & (move.state == 'done')
| (date_column >= today) & (move.state != 'cancelled')),
with_=warehouse))
@classmethod
def get_origin(cls):
pool = Pool()
Move = pool.get('stock.move')
return Move.get_origin()
@classmethod
def _get_document_models(cls):
pool = Pool()
Move = pool.get('stock.move')
return [m for m, _ in Move.get_shipment() if m]
@classmethod
def get_documents(cls):
pool = Pool()
Model = pool.get('ir.model')
get_name = Model.get_name
models = cls._get_document_models()
return [(None, '')] + [(m, get_name(m)) for m in models]
def get_document(self, name):
if self.move and self.move.shipment:
return str(self.move.shipment)
@classmethod
def get_cumulative_quantity(cls, records, names):
pool = Pool()
Product = pool.get('product.product')
transaction = Transaction()
database = transaction.database
trans_context = transaction.context
if trans_context.get('product_template') is not None:
grouping = ('product.template',)
product_template = trans_context['product_template']
if isinstance(product_template, int):
product_template = [product_template]
grouping_filter = (product_template,)
else:
grouping = ('product',)
product = trans_context.get('product', -1)
if product is None:
product = -1
if isinstance(product, int):
product = [product]
grouping_filter = (product,)
warehouse_id = trans_context.get('warehouse')
def cast_date(date):
if isinstance(date, str):
date = datetime.date(*map(int, date.split('-', 2)))
return date
dates = sorted({cast_date(r.date) for r in records})
quantities = {}
keys = set()
date_start = None
for date in dates:
try:
context = {
'stock_date_start': date_start,
'stock_date_end': date - datetime.timedelta(days=1),
'forecast': True,
}
except OverflowError:
pass
with Transaction().set_context(**context):
quantities[date] = Product.products_by_location(
[warehouse_id],
grouping=grouping,
grouping_filter=grouping_filter,
with_childs=True)
keys.update(quantities[date])
date_start = date
cumulate = defaultdict(lambda: 0)
for date in dates:
for key in keys:
cumulate[key] += quantities[date][key]
quantities[date][key] = cumulate[key]
result = {}
if database.has_window_functions():
if 'cumulative_quantity_start' in names:
result['cumulative_quantity_start'] = {
r.id: (
quantities[cast_date(r.date)].get(
(warehouse_id, int(r.product)), 0)
+ r.cumulative_quantity_delta
- r.quantity)
for r in records}
if 'cumulative_quantity_end' in names:
result['cumulative_quantity_end'] = {
r.id: (
quantities[cast_date(r.date)].get(
(warehouse_id, int(r.product)), 0)
+ r.cumulative_quantity_delta)
for r in records}
else:
values = {
r.id: quantities[cast_date(r.date)].get(
(warehouse_id, int(r.product)), 0)
for r in records}
for name in names:
result[name] = values
return result
def get_rec_name(self, name):
return self.move.rec_name
class RecomputeCostPrice(Wizard):
'Recompute Cost Price'
__name__ = 'product.recompute_cost_price'
start = StateView(
'product.recompute_cost_price.start',
'stock.recompute_cost_price_start_view_form', [
Button("Cancel", 'end'),
Button("Recompute", 'recompute', default=True)])
recompute = StateTransition()
def default_start(self, fields):
pool = Pool()
Move = pool.get('stock.move')
Product = pool.get('product.product')
if self.model.__name__ == 'product.product':
products = self.records
elif self.model.__name__ == 'product.template':
templates = self.records
products = sum((t.products for t in templates), ())
else:
products = []
from_ = None
for sub_products in grouped_slice(products):
moves = Move.search([
('unit_price_updated', '=', True),
Product._domain_moves_cost(),
('product', 'in', [p.id for p in sub_products]),
],
order=[('effective_date', 'ASC')],
limit=1)
if moves:
move, = moves
from_ = min(from_ or datetime.date.max, move.effective_date)
return {'from_': from_}
def transition_recompute(self):
self.model.recompute_cost_price(self.records, start=self.start.from_)
return 'end'
class RecomputeCostPriceStart(ModelView):
"Recompute Cost Price"
__name__ = 'product.recompute_cost_price.start'
from_ = fields.Date("From")
class ModifyCostPrice(Wizard):
"Modify Cost Price"
__name__ = 'product.modify_cost_price'
start = StateView(
'product.modify_cost_price.start',
'stock.product_modify_cost_price_start_form', [
Button("Cancel", 'end', 'tryton-cancel'),
Button("OK", 'modify', default=True),
])
modify = StateTransition()
def transition_modify(self):
pool = Pool()
Product = pool.get('product.product')
Revision = pool.get('product.cost_price.revision')
Date = pool.get('ir.date')
today = Date.today()
revisions = []
costs = defaultdict(list)
if self.model.__name__ == 'product.product':
records = list(self.records)
for product in list(records):
revision = self.get_revision(Revision)
revision.product = product
revision.template = product.template
revisions.append(revision)
if ((
product.cost_price_method == 'fixed'
and revision.date == today)
or product.type == 'service'):
cost = revision.get_cost_price(product.cost_price)
costs[cost].append(product)
records.remove(product)
elif self.model.__name__ == 'product.template':
records = list(self.records)
for template in list(records):
revision = self.get_revision(Revision)
revision.template = template
revisions.append(revision)
if ((
template.cost_price_method == 'fixed'
and revision.date == today)
or template.type == 'service'):
for product in template.products:
cost = revision.get_cost_price(product.cost_price)
costs[cost].append(product)
records.remove(template)
Revision.save(revisions)
if costs:
Product.update_cost_price(costs)
if records:
start = min((r.date for r in revisions), default=None)
self.model.recompute_cost_price(records, start=start)
return 'end'
def get_revision(self, Revision):
return Revision(
company=Transaction().context.get('company'),
date=self.start.date,
cost_price=self.start.cost_price,
)
class ModifyCostPriceStart(ModelView):
"Modify Cost Price"
__name__ = 'product.modify_cost_price.start'
date = fields.Date("Date", required=True)
cost_price = fields.Char(
"New Cost Price", required=True,
help="Python expression that will be evaluated with:\n"
"- cost_price: the current cost price of the product")
@classmethod
def default_date(cls):
pool = Pool()
Date = pool.get('ir.date')
return Date.today()
@classmethod
def default_cost_price(cls):
return 'cost_price'
class CostPriceRevision(ModelSQL, ModifyCostPriceStart):
"Product Cost Price Revision"
__name__ = 'product.cost_price.revision'
template = fields.Many2One(
'product.template', "Product",
ondelete='CASCADE', select=True, required=True,
domain=[
If(Bool(Eval('product')),
('products', '=', Eval('product')),
()),
],
context={
'company': Eval('company', -1),
},
depends=['product', 'company'])
product = fields.Many2One(
'product.product', "Variant",
ondelete='CASCADE', select=True,
domain=[
If(Bool(Eval('template')),
('template', '=', Eval('template')),
()),
],
context={
'company': Eval('company', -1),
},
depends=['template', 'company'])
company = fields.Many2One(
'company.company', "Company", ondelete='CASCADE', required=True)
@classmethod
def __setup__(cls):
super().__setup__()
cls._order.insert(0, ('date', 'DESC'))
@classmethod
def default_company(cls):
return Transaction().context.get('company')
@fields.depends('product', '_parent_product.template')
def on_change_product(self):
if self.product:
self.template = self.product.template
@classmethod
def validate(cls, revisions):
super().validate(revisions)
for revision in revisions:
revision.check_cost_price()
def check_cost_price(self):
try:
if not isinstance(self.get_cost_price(Decimal(0)), Decimal):
raise ValueError
except Exception as exception:
raise ProductCostPriceError(
gettext('stock.msg_invalid_cost_price',
cost_price=self.cost_price,
product=(self.product or self.template).rec_name,
exception=exception)) from exception
def get_cost_price(self, cost_price, **context):
context.setdefault('names', {})['cost_price'] = cost_price
context.setdefault('functions', {})['Decimal'] = Decimal
return simple_eval(decistmt(self.cost_price), **context)
@classmethod
def _get_for_product_domain(cls):
context = Transaction().context
return [
('company', '=', context.get('company')),
]
@classmethod
def get_for_product(cls, product):
revisions = cls.search([
cls._get_for_product_domain(),
['OR',
('product', '=', product.id),
[
('template', '=', product.template.id),
('product', '=', None),
],
],
],
order=[('date', 'ASC'), ('id', 'ASC')])
return revisions
@classmethod
def apply_up_to(cls, revisions, cost_price, date):
"""Apply revision to cost price up to date
revisions list is modified"""
try:
while True:
revision = revisions.pop(0)
if revision.date <= date:
cost_price = revision.get_cost_price(cost_price)
else:
revisions.insert(0, revision)
break
except IndexError:
pass
return cost_price