378 lines
13 KiB
Python
378 lines
13 KiB
Python
#This file is part of Tryton. The COPYRIGHT file at the top level
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#of this repository contains the full copyright notices and license terms.
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from trytond.model import Workflow, ModelView, ModelSQL, fields
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from trytond.pyson import Not, Equal, Eval, Or, Bool
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from trytond import backend
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from trytond.transaction import Transaction
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from trytond.pool import Pool
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__all__ = ['Inventory', 'InventoryLine']
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STATES = {
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'readonly': Not(Equal(Eval('state'), 'draft')),
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}
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DEPENDS = ['state']
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class Inventory(Workflow, ModelSQL, ModelView):
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'Stock Inventory'
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__name__ = 'stock.inventory'
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location = fields.Many2One(
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'stock.location', 'Location', required=True,
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domain=[('type', '=', 'storage')], states={
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'readonly': Or(Not(Equal(Eval('state'), 'draft')),
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Bool(Eval('lines', [0]))),
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},
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depends=['state'])
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date = fields.Date('Date', required=True, states={
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'readonly': Or(Not(Equal(Eval('state'), 'draft')),
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Bool(Eval('lines', [0]))),
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},
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depends=['state'])
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lost_found = fields.Many2One(
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'stock.location', 'Lost and Found', required=True,
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domain=[('type', '=', 'lost_found')], states=STATES, depends=DEPENDS)
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lines = fields.One2Many(
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'stock.inventory.line', 'inventory', 'Lines', states=STATES,
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depends=DEPENDS)
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company = fields.Many2One('company.company', 'Company', required=True,
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states={
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'readonly': Or(Not(Equal(Eval('state'), 'draft')),
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Bool(Eval('lines', [0]))),
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},
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depends=['state'])
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state = fields.Selection([
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('draft', 'Draft'),
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('done', 'Done'),
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('cancel', 'Canceled'),
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], 'State', readonly=True, select=True)
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@classmethod
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def __setup__(cls):
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super(Inventory, cls).__setup__()
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cls._order.insert(0, ('date', 'DESC'))
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cls._error_messages.update({
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'delete_cancel': ('Inventory "%s" must be cancelled before '
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'deletion.'),
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'unique_line': ('Line "%s" is not unique '
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'on Inventory "%s".'),
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})
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cls._transitions |= set((
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('draft', 'done'),
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('draft', 'cancel'),
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))
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cls._buttons.update({
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'confirm': {
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'invisible': Eval('state').in_(['done', 'cancel']),
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},
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'cancel': {
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'invisible': Eval('state').in_(['cancel', 'done']),
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},
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'complete_lines': {
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'readonly': Eval('state') != 'draft',
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},
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})
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@classmethod
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def __register__(cls, module_name):
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TableHandler = backend.get('TableHandler')
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super(Inventory, cls).__register__(module_name)
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cursor = Transaction().cursor
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# Add index on create_date
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table = TableHandler(cursor, cls, module_name)
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table.index_action('create_date', action='add')
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@staticmethod
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def default_state():
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return 'draft'
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@staticmethod
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def default_date():
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Date = Pool().get('ir.date')
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return Date.today()
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@staticmethod
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def default_company():
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return Transaction().context.get('company')
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@classmethod
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def default_lost_found(cls):
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Location = Pool().get('stock.location')
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locations = Location.search(cls.lost_found.domain)
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if len(locations) == 1:
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return locations[0].id
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@classmethod
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def delete(cls, inventories):
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# Cancel before delete
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cls.cancel(inventories)
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for inventory in inventories:
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if inventory.state != 'cancel':
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cls.raise_user_error('delete_cancel', inventory.rec_name)
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super(Inventory, cls).delete(inventories)
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@classmethod
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@ModelView.button
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@Workflow.transition('done')
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def confirm(self, inventories):
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Move = Pool().get('stock.move')
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moves = []
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for inventory in inventories:
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keys = set()
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for line in inventory.lines:
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key = line.unique_key
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if key in keys:
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self.raise_user_error('unique_line',
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(line.rec_name, inventory.rec_name))
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keys.add(key)
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move = line.get_move()
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if move:
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moves.append(move)
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if moves:
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moves = Move.create([m._save_values for m in moves])
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Move.do(moves)
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@classmethod
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@ModelView.button
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@Workflow.transition('cancel')
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def cancel(self, inventories):
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Line = Pool().get("stock.inventory.line")
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Line.cancel_move([l for i in inventories for l in i.lines])
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@classmethod
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def copy(cls, inventories, default=None):
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pool = Pool()
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Date = pool.get('ir.date')
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Line = pool.get('stock.inventory.line')
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if default is None:
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default = {}
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default = default.copy()
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default['date'] = Date.today()
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default['lines'] = None
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new_inventories = []
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for inventory in inventories:
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new_inventory, = super(Inventory, cls).copy([inventory],
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default=default)
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Line.copy(inventory.lines,
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default={
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'inventory': new_inventory.id,
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'moves': None,
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})
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cls.complete_lines([new_inventory])
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new_inventories.append(new_inventory)
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return new_inventories
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@staticmethod
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def complete_lines(inventories):
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'''
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Complete or update the inventories
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'''
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pool = Pool()
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Line = pool.get('stock.inventory.line')
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Product = pool.get('product.product')
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to_create = []
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for inventory in inventories:
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# Compute product quantities
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with Transaction().set_context(stock_date_end=inventory.date):
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pbl = Product.products_by_location([inventory.location.id])
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# Index some data
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product2uom = {}
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product2type = {}
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product2consumable = {}
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for product in Product.browse([line[1] for line in pbl]):
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product2uom[product.id] = product.default_uom.id
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product2type[product.id] = product.type
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product2consumable[product.id] = product.consumable
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product_qty = {}
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for (location, product), quantity in pbl.iteritems():
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product_qty[product] = (quantity, product2uom[product])
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# Update existing lines
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for line in inventory.lines:
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if not (line.product.active and
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line.product.type == 'goods'
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and not line.product.consumable):
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Line.delete([line])
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continue
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if line.product.id in product_qty:
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quantity, uom_id = product_qty.pop(line.product.id)
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elif line.product.id in product2uom:
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quantity, uom_id = 0.0, product2uom[line.product.id]
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else:
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quantity, uom_id = 0.0, line.product.default_uom.id
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values = line.update_values4complete(quantity, uom_id)
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if values:
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Line.write([line], values)
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# Create lines if needed
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for product_id in product_qty:
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if (product2type[product_id] != 'goods'
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or product2consumable[product_id]):
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continue
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quantity, uom_id = product_qty[product_id]
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values = Line.create_values4complete(product_id, inventory,
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quantity, uom_id)
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to_create.append(values)
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if to_create:
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Line.create(to_create)
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class InventoryLine(ModelSQL, ModelView):
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'Stock Inventory Line'
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__name__ = 'stock.inventory.line'
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_rec_name = 'product'
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product = fields.Many2One('product.product', 'Product', required=True,
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domain=[
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('type', '=', 'goods'),
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('consumable', '=', False),
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])
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uom = fields.Function(fields.Many2One('product.uom', 'UOM'), 'get_uom')
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unit_digits = fields.Function(fields.Integer('Unit Digits'),
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'get_unit_digits')
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expected_quantity = fields.Float('Expected Quantity', required=True,
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digits=(16, Eval('unit_digits', 2)), readonly=True,
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depends=['unit_digits'])
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quantity = fields.Float('Quantity', required=True,
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digits=(16, Eval('unit_digits', 2)), depends=['unit_digits'])
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moves = fields.One2Many('stock.move', 'origin', 'Moves', readonly=True)
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inventory = fields.Many2One('stock.inventory', 'Inventory', required=True,
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ondelete='CASCADE')
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@classmethod
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def __setup__(cls):
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super(InventoryLine, cls).__setup__()
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cls._sql_constraints += [
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('check_line_qty_pos',
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'CHECK(quantity >= 0.0)', 'Line quantity must be positive.'),
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]
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cls._order.insert(0, ('product', 'ASC'))
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@classmethod
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def __register__(cls, module_name):
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TableHandler = backend.get('TableHandler')
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cursor = Transaction().cursor
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pool = Pool()
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Move = pool.get('stock.move')
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sql_table = cls.__table__()
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move_table = Move.__table__()
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super(InventoryLine, cls).__register__(module_name)
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table = TableHandler(cursor, cls, module_name)
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# Migration from 2.8: Remove constraint inventory_product_uniq
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table.drop_constraint('inventory_product_uniq')
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# Migration from 3.0: use Move origin
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if table.column_exist('move'):
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cursor.execute(*sql_table.select(sql_table.id, sql_table.move,
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where=sql_table.move != None))
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for line_id, move_id in cursor.fetchall():
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cursor.execute(*move_table.update(
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columns=[move_table.origin],
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values=['%s,%s' % (cls.__name__, line_id)],
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where=move_table.id == move_id))
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table.drop_column('move')
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@staticmethod
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def default_unit_digits():
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return 2
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@staticmethod
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def default_expected_quantity():
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return 0.
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@fields.depends('product')
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def on_change_product(self):
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change = {}
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change['unit_digits'] = 2
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if self.product:
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change['uom'] = self.product.default_uom.id
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change['uom.rec_name'] = self.product.default_uom.rec_name
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change['unit_digits'] = self.product.default_uom.digits
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return change
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def get_rec_name(self, name):
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return self.product.rec_name
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def get_uom(self, name):
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return self.product.default_uom.id
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def get_unit_digits(self, name):
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return self.product.default_uom.digits
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@property
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def unique_key(self):
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return (self.product,)
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@classmethod
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def cancel_move(cls, lines):
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Move = Pool().get('stock.move')
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moves = [m for l in lines for m in l.moves if l.moves]
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Move.cancel(moves)
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Move.delete(moves)
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def get_move(self):
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'''
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Return Move instance for the inventory line
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'''
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pool = Pool()
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Move = pool.get('stock.move')
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Uom = pool.get('product.uom')
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delta_qty = Uom.compute_qty(self.uom,
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self.expected_quantity - self.quantity,
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self.uom)
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if delta_qty == 0.0:
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return
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from_location = self.inventory.location
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to_location = self.inventory.lost_found
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if delta_qty < 0:
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(from_location, to_location, delta_qty) = \
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(to_location, from_location, -delta_qty)
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return Move(
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from_location=from_location,
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to_location=to_location,
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quantity=delta_qty,
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product=self.product,
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uom=self.uom,
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company=self.inventory.company,
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effective_date=self.inventory.date,
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origin=self,
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)
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def update_values4complete(self, quantity, uom_id):
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'''
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Return update values to complete inventory
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'''
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values = {}
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# if nothing changed, no update
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if self.quantity == self.expected_quantity == quantity \
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and self.uom.id == uom_id:
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return values
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values['expected_quantity'] = quantity
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values['uom'] = uom_id
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# update also quantity field if not edited
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if self.quantity == self.expected_quantity:
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values['quantity'] = max(quantity, 0.0)
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return values
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@classmethod
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def create_values4complete(cls, product_id, inventory, quantity, uom_id):
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'''
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Return create values to complete inventory
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'''
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return {
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'inventory': inventory.id,
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'product': product_id,
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'expected_quantity': quantity,
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'quantity': max(quantity, 0.0),
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'uom': uom_id,
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}
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