175 lines
7.3 KiB
Python
175 lines
7.3 KiB
Python
#This file is part of Tryton. The COPYRIGHT file at the top level of
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#this repository contains the full copyright notices and license terms.
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from decimal import Decimal
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from trytond.model import fields
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from trytond.pyson import Eval
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from trytond.pool import Pool, PoolMeta
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__all__ = ['Move']
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__metaclass__ = PoolMeta
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class Move:
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__name__ = 'stock.move'
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fifo_quantity = fields.Float('FIFO Quantity',
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digits=(16, Eval('unit_digits', 2)),
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depends=['unit_digits'])
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@classmethod
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def __setup__(cls):
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super(Move, cls).__setup__()
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cls._sql_constraints += [
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('check_fifo_quantity_out',
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'CHECK(quantity >= fifo_quantity)',
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'FIFO quantity can not be greater than quantity!'),
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]
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cls._error_messages.update({
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'del_move_fifo': 'You can not delete move that is used '\
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'for FIFO cost price!',
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})
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@staticmethod
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def default_fifo_quantity():
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return 0.0
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@classmethod
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def _update_fifo_out_product_cost_price(cls, product, quantity, uom,
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date):
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'''
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Update the product cost price of the given product. Update
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fifo_quantity on the concerned incomming moves. Return the
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cost price for outputing the given product and quantity.
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'''
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Uom = Pool().get('product.uom')
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total_qty = Uom.compute_qty(uom, quantity, product.default_uom,
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round=False)
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fifo_moves = product.template.get_fifo_move(total_qty)
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cost_price = Decimal("0.0")
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consumed_qty = 0.0
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for move, move_qty in fifo_moves:
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consumed_qty += move_qty
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move_unit_price = Uom.compute_price(move.uom, move.unit_price,
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move.product.default_uom)
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cost_price += move_unit_price * Decimal(str(move_qty))
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cls._update_product_cost_price(product.id, -move_qty,
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product.default_uom, move_unit_price, move.currency,
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move.company, date)
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move_qty = Uom.compute_qty(product.default_uom, move_qty,
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move.uom, round=False)
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cls.write([move], {
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'fifo_quantity': (move.fifo_quantity or 0.0) + move_qty,
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})
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if Decimal(str(consumed_qty)) != Decimal("0"):
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cost_price = cost_price / Decimal(str(consumed_qty))
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if cost_price != Decimal("0"):
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digits = cls.cost_price.digits
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return cost_price.quantize(
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Decimal(str(10.0 ** -digits[1])))
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else:
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return product.cost_price
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@classmethod
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def create(cls, vals):
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pool = Pool()
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Location = pool.get('stock.location')
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Product = pool.get('product.product')
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Date = pool.get('ir.date')
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today = Date.today()
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effective_date = vals.get('effective_date') or today
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if vals.get('state') == 'done':
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from_location = Location(vals['from_location'])
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to_location = Location(vals['to_location'])
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product = Product(vals['product'])
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if (from_location.type in ('supplier', 'production')
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and to_location.type == 'storage'
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and product.cost_price_method == 'fifo'):
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cls._update_product_cost_price(vals['product'],
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vals['quantity'], vals['uom'], vals['unit_price'],
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vals['currency'], effective_date)
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if (to_location.type == 'supplier'
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and from_location.type == 'storage'
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and product.cost_price_method == 'fifo'):
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cls._update_product_cost_price(vals['product'],
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-vals['quantity'], vals['uom'], vals['unit_price'],
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vals['currency'], effective_date)
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if to_location.type != 'storage' \
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and to_location.type != 'supplier' \
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and product.cost_price_method == 'fifo':
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cost_price = cls._update_fifo_out_product_cost_price(product,
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vals['quantity'], vals['uom'], effective_date)
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if not vals.get('cost_price'):
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vals['cost_price'] = cost_price
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return super(Move, cls).create(vals)
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@classmethod
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def write(cls, moves, vals):
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Date = Pool().get('ir.date')
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today = Date.today()
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effective_date = vals.get('effective_date') or today
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if 'state' in vals and vals['state'] == 'done':
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for move in moves:
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if vals['state'] == 'cancel':
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if (move.from_location.type in ('supplier', 'production')
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and move.to_location.type == 'storage'
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and move.state != 'cancel'
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and move.product.cost_price_method == 'fifo'):
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cls._update_product_cost_price(move.product.id,
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-move.quantity, move.uom, move.unit_price,
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move.currency, move.company, effective_date)
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if (move.to_location.type == 'supplier'
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and move.from_location.type == 'storage'
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and move.state != 'cancel'
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and move.product.cost_price_method == 'fifo'):
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cls._update_product_cost_price(move.product.id,
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move.quantity, move.uom, move.unit_price,
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move.currency, move.company, effective_date)
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elif vals['state'] == 'done':
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if (move.from_location.type in ('supplier', 'production')
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and move.to_location.type == 'storage'
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and move.state != 'done'
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and move.product.cost_price_method == 'fifo'):
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cls._update_product_cost_price(move.product.id,
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move.quantity, move.uom, move.unit_price,
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move.currency, move.company, effective_date)
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if (move.to_location.type == 'supplier'
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and move.from_location.type == 'storage'
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and move.state != 'done'
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and move.product.cost_price_method == 'fifo'):
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cls._update_product_cost_price(move.product.id,
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-move.quantity, move.uom, move.unit_price,
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move.currency, move.company, effective_date)
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if move.to_location.type != 'storage' \
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and move.to_location.type != 'supplier' \
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and move.product.cost_price_method == 'fifo':
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cost_price = cls._update_fifo_out_product_cost_price(
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move.product, move.quantity, move.uom,
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effective_date)
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if not vals.get('cost_price'):
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vals['cost_price'] = cost_price
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super(Move, cls).write(moves, vals)
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@classmethod
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def delete(cls, moves):
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if cls.search([
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('id', 'in', [m.id for m in moves]),
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('fifo_quantity', '!=', 0.0),
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]):
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cls.raise_user_error('del_move_fifo')
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super(Move, cls).delete(moves)
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