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Oscar Andres Alvarez committed 2012-09-24 22:09:23 +02:00
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commit 760eff2bfe
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__init__.py
+8 -1
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@@ -1,5 +1,12 @@
#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.pool import Pool
from .product import *
from .move import *
def register():
Pool.register(
Template,
Move,
module='product_cost_fifo', type_='model')
move.py
+62 -66
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@@ -1,73 +1,69 @@
#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 decimal import Decimal
from trytond.model import ModelView, ModelSQL, fields
from trytond.model import fields
from trytond.pyson import Eval
from trytond.pool import Pool
from trytond.pool import Pool, PoolMeta
__all__ = ['Move']
__metaclass__ = PoolMeta
class Move(ModelSQL, ModelView):
_name = 'stock.move'
class Move:
__name__ = 'stock.move'
fifo_quantity = fields.Float('FIFO Quantity',
digits=(16, Eval('unit_digits', 2)),
depends=['unit_digits'])
def __init__(self):
super(Move, self).__init__()
self._sql_constraints += [
('check_fifo_quantity_out',
'CHECK(quantity >= fifo_quantity)',
'FIFO quantity can not be greater than quantity!'),
]
self._error_messages.update({
'del_move_fifo': 'You can not delete move that is used ' \
@classmethod
def __setup__(cls):
super(Move, cls).__setup__()
cls._sql_constraints += [
('check_fifo_quantity_out',
'CHECK(quantity >= fifo_quantity)',
'FIFO quantity can not be greater than quantity!'),
]
cls._error_messages.update({
'del_move_fifo': 'You can not delete move that is used '\
'for FIFO cost price!',
})
})
def default_fifo_quantity(self):
@staticmethod
def default_fifo_quantity():
return 0.0
def _update_fifo_out_product_cost_price(self, product, quantity, uom,
@classmethod
def _update_fifo_out_product_cost_price(cls, product, quantity, uom,
date):
'''
Update the product cost price of the given product. Update
fifo_quantity on the concerned incomming moves. Return the
cost price for outputing the given product and quantity.
:param product: a BrowseRecord of the product
:param quantity: the quantity of the outgoing product
:param uom: the uom id or a BrowseRecord of the uom
:param date: the date for the currency rate calculation
:return: cost_price (of type decimal)
'''
template_obj = Pool().get('product.template')
uom_obj = Pool().get('product.uom')
Uom = Pool().get('product.uom')
if isinstance(uom, (int, long)):
uom = uom_obj.browse(uom)
total_qty = uom_obj.compute_qty(uom, quantity, product.default_uom,
total_qty = Uom.compute_qty(uom, quantity, product.default_uom,
round=False)
fifo_moves = template_obj.get_fifo_move(product.template.id, total_qty)
fifo_moves = product.template.get_fifo_move(total_qty)
cost_price = Decimal("0.0")
consumed_qty = 0.0
for move, move_qty in fifo_moves:
consumed_qty += move_qty
move_unit_price = uom_obj.compute_price(move.uom, move.unit_price,
move_unit_price = Uom.compute_price(move.uom, move.unit_price,
move.product.default_uom)
cost_price += move_unit_price * Decimal(str(move_qty))
self._update_product_cost_price(product.id, -move_qty,
cls._update_product_cost_price(product.id, -move_qty,
product.default_uom, move_unit_price, move.currency,
move.company, date)
move_qty = uom_obj.compute_qty(product.default_uom, move_qty,
move_qty = Uom.compute_qty(product.default_uom, move_qty,
move.uom, round=False)
self.write(move.id, {
cls.write([move], {
'fifo_quantity': (move.fifo_quantity or 0.0) + move_qty,
})
@@ -75,71 +71,71 @@ class Move(ModelSQL, ModelView):
cost_price = cost_price / Decimal(str(consumed_qty))
if cost_price != Decimal("0"):
digits = self.cost_price.digits
digits = cls.cost_price.digits
return cost_price.quantize(
Decimal(str(10.0 ** -digits[1])))
else:
return product.cost_price
def create(self, vals):
@classmethod
def create(cls, vals):
pool = Pool()
location_obj = pool.get('stock.location')
product_obj = pool.get('product.product')
date_obj = pool.get('ir.date')
Location = pool.get('stock.location')
Product = pool.get('product.product')
Date = pool.get('ir.date')
today = date_obj.today()
today = Date.today()
effective_date = vals.get('effective_date') or today
if vals.get('state') == 'done':
from_location = location_obj.browse(vals['from_location'])
to_location = location_obj.browse(vals['to_location'])
product = product_obj.browse(vals['product'])
from_location = Location(vals['from_location'])
to_location = Location(vals['to_location'])
product = Product(vals['product'])
if (from_location.type in ('supplier', 'production')
and to_location.type == 'storage'
and product.cost_price_method == 'fifo'):
self._update_product_cost_price(vals['product'],
cls._update_product_cost_price(vals['product'],
vals['quantity'], vals['uom'], vals['unit_price'],
vals['currency'], effective_date)
if (to_location.type == 'supplier'
and from_location.type == 'storage'
and product.cost_price_method == 'fifo'):
self._update_product_cost_price(vals['product'],
cls._update_product_cost_price(vals['product'],
-vals['quantity'], vals['uom'], vals['unit_price'],
vals['currency'], effective_date)
if to_location.type != 'storage' \
and to_location.type != 'supplier' \
and product.cost_price_method == 'fifo':
cost_price = self._update_fifo_out_product_cost_price(product,
cost_price = cls._update_fifo_out_product_cost_price(product,
vals['quantity'], vals['uom'], effective_date)
if not vals.get('cost_price'):
vals['cost_price'] = cost_price
return super(Move, self).create(vals)
return super(Move, cls).create(vals)
def write(self, ids, vals):
date_obj = Pool().get('ir.date')
@classmethod
def write(cls, moves, vals):
Date = Pool().get('ir.date')
if isinstance(ids, (int, long)):
ids = [ids]
today = date_obj.today()
today = Date.today()
effective_date = vals.get('effective_date') or today
if 'state' in vals and vals['state'] == 'done':
for move in self.browse(ids):
for move in moves:
if vals['state'] == 'cancel':
if (move.from_location.type in ('supplier', 'production')
and move.to_location.type == 'storage'
and move.state != 'cancel'
and move.product.cost_price_method == 'fifo'):
self._update_product_cost_price(move.product.id,
cls._update_product_cost_price(move.product.id,
-move.quantity, move.uom, move.unit_price,
move.currency, move.company, effective_date)
if (move.to_location.type == 'supplier'
and move.from_location.type == 'storage'
and move.state != 'cancel'
and move.product.cost_price_method == 'fifo'):
self._update_product_cost_price(move.product.id,
cls._update_product_cost_price(move.product.id,
move.quantity, move.uom, move.unit_price,
move.currency, move.company, effective_date)
@@ -148,31 +144,31 @@ class Move(ModelSQL, ModelView):
and move.to_location.type == 'storage'
and move.state != 'done'
and move.product.cost_price_method == 'fifo'):
self._update_product_cost_price(move.product.id,
cls._update_product_cost_price(move.product.id,
move.quantity, move.uom, move.unit_price,
move.currency, move.company, effective_date)
if (move.to_location.type == 'supplier'
and move.from_location.type == 'storage'
and move.state != 'done'
and move.product.cost_price_method == 'fifo'):
self._update_product_cost_price(move.product.id,
cls._update_product_cost_price(move.product.id,
-move.quantity, move.uom, move.unit_price,
move.currency, move.company, effective_date)
if move.to_location.type != 'storage' \
and move.to_location.type != 'supplier' \
and move.product.cost_price_method == 'fifo':
cost_price = self._update_fifo_out_product_cost_price(
cost_price = cls._update_fifo_out_product_cost_price(
move.product, move.quantity, move.uom,
effective_date)
if not vals.get('cost_price'):
vals['cost_price'] = cost_price
return super(Move, self).write(ids, vals)
super(Move, cls).write(moves, vals)
def delete(self, ids):
if self.search([
('id', 'in', ids),
('fifo_quantity', '!=', 0.0),
]):
self.raise_user_error('del_move_fifo')
return super(Move, self).delete(ids)
Move()
@classmethod
def delete(cls, moves):
if cls.search([
('id', 'in', [m.id for m in moves]),
('fifo_quantity', '!=', 0.0),
]):
cls.raise_user_error('del_move_fifo')
super(Move, cls).delete(moves)
product.py
+23 -30
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@@ -1,66 +1,61 @@
#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 copy
import datetime
from trytond.model import ModelView, ModelSQL
from trytond.transaction import Transaction
from trytond.pool import Pool
from trytond.pool import Pool, PoolMeta
__all__ = ['Template']
__metaclass__ = PoolMeta
class Template(ModelSQL, ModelView):
_name = "product.template"
class Template:
__name__ = 'product.template'
def __init__(self):
super(Template, self).__init__()
@classmethod
def __setup__(cls):
super(Template, cls).__setup__()
new_sel = ('fifo', 'FIFO')
if new_sel not in self.cost_price_method.selection:
self.cost_price_method = copy.copy(self.cost_price_method)
self.cost_price_method.selection.append(new_sel)
self._reset_columns()
if new_sel not in cls.cost_price_method.selection:
cls.cost_price_method.selection.append(new_sel)
def get_fifo_move(self, template_id, quantity=0.0):
def get_fifo_move(self, quantity=0.0):
'''
Return a list of (move, qty) where move is the move to be
consumed and qty is the quantity (in the product default uom)
to be consumed on this move. The list contains the "first in"
moves for the given quantity.
:param template_id: the product template id
:param quantity: the quantity to be removed from the stock
:return: list of (move, qty) where move is a browse record,
qty is a float
'''
pool = Pool()
move_obj = pool.get('stock.move')
uom_obj = pool.get('product.uom')
location_obj = pool.get('stock.location')
Move = pool.get('stock.move')
Uom = pool.get('product.uom')
Location = pool.get('stock.location')
locations = location_obj.search([
locations = Location.search([
('type', '=', 'storage'),
])
stock_date_end = datetime.date.today()
with Transaction().set_context(locations=locations,
location_ids = [l.id for l in locations]
with Transaction().set_context(locations=location_ids,
stock_date_end=stock_date_end):
template = self.browse(template_id)
template = Template(self.id)
offset = 0
limit = Transaction().cursor.IN_MAX
avail_qty = template.quantity
fifo_moves = []
while avail_qty > 0.0:
move_ids = move_obj.search([
moves = Move.search([
('product.template.id', '=', template.id),
('state', '=', 'done'),
('from_location.type', '=', 'supplier'),
], offset=offset, limit=limit,
order=[('effective_date', 'DESC'), ('id', 'DESC')])
if not move_ids:
if not moves:
break
offset += limit
for move in move_obj.browse(move_ids):
qty = uom_obj.compute_qty(move.uom,
for move in moves:
qty = Uom.compute_qty(move.uom,
move.quantity - move.fifo_quantity,
template.default_uom, round=False)
avail_qty -= qty
@@ -76,5 +71,3 @@ class Template(ModelSQL, ModelView):
fifo_moves.reverse()
return fifo_moves
Template()