Bertrand Chenal
4bb1796e7a
The cost price is no more the price of the last "fist in" move considered but the weighted average price of the all the "first in" moves used to balance the requested quantity.
81 lines
3.0 KiB
Python
81 lines
3.0 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 trytond.model import ModelView, ModelSQL, fields
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import copy
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import datetime
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class Template(ModelSQL, ModelView):
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_name = "product.template"
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def __init__(self):
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super(Template, self).__init__()
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new_sel = ('fifo', 'FIFO')
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if new_sel not in self.cost_price_method.selection:
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self.cost_price_method = copy.copy(self.cost_price_method)
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self.cost_price_method.selection.append(new_sel)
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self._reset_columns()
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def get_fifo_move(self, cursor, user, template_id, quantity=0.0,
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context=None):
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'''
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Return a list of (move, qty) where move is the move to be
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consumed and qty is the quantity (in the product default uom)
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to be consumed on this move. The list contains the "first in"
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moves for the given quantity.
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:param cursor: the database cursor
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:param user: the user id
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:param template_id: the product template id
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:param quantity: the quantity to be removed from the stock
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:param context: the context
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:return: list of (move, qty) where move is a browse record,
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qty is a float
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'''
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move_obj = self.pool.get('stock.move')
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uom_obj = self.pool.get('product.uom')
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location_obj = self.pool.get('stock.location')
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ctx = context and context.copy() or {}
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ctx['locations'] = location_obj.search(cursor, user, [
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('type', '=', 'storage'),
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], context=context)
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ctx['stock_date_end'] = datetime.date.today()
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template = self.browse(cursor, user, template_id, context=ctx)
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offset = 0
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limit = cursor.IN_MAX
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avail_qty = template.quantity
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fifo_moves = []
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while avail_qty > 0.0:
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move_ids = move_obj.search(cursor, user, [
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('product.template.id', '=', template.id),
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('state', '=', 'done'),
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('from_location.type', '=', 'supplier'),
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], offset=offset, limit=limit,
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order=[('effective_date', 'DESC'), ('id', 'DESC')],
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context=context)
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if not move_ids:
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break
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offset += limit
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for move in move_obj.browse(cursor, user, move_ids,
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context=context):
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qty = uom_obj.compute_qty(cursor, user, move.uom,
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move.quantity - move.fifo_quantity,
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template.default_uom, round=False, context=context)
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avail_qty -= qty
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if avail_qty <= quantity:
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if avail_qty > 0.0:
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fifo_moves.append((move, min(qty, quantity - avail_qty)))
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else:
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fifo_moves.append((move, min(quantity, qty + avail_qty)))
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break
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fifo_moves.reverse()
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return fifo_moves
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Template()
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