/usr/lib/python3/dist-packages/trytond/modules/stock/inventory.py is in tryton-modules-stock 4.6.2-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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# this repository contains the full copyright notices and license terms.
from sql import Null
from trytond.model import Workflow, Model, ModelView, ModelSQL, fields, Check
from trytond.pyson import Eval, Bool
from trytond import backend
from trytond.transaction import Transaction
from trytond.pool import Pool
__all__ = ['Inventory', 'InventoryLine']
STATES = {
'readonly': Eval('state') != 'draft',
}
DEPENDS = ['state']
INVENTORY_STATES = [
('draft', 'Draft'),
('done', 'Done'),
('cancel', 'Canceled'),
]
class Inventory(Workflow, ModelSQL, ModelView):
'Stock Inventory'
__name__ = 'stock.inventory'
_rec_name = 'number'
number = fields.Char('Number', readonly=True)
location = fields.Many2One(
'stock.location', 'Location', required=True,
domain=[('type', '=', 'storage')], states={
'readonly': (Eval('state') != 'draft') | Eval('lines', [0]),
},
depends=['state'])
date = fields.Date('Date', required=True, states={
'readonly': (Eval('state') != 'draft') | Eval('lines', [0]),
},
depends=['state'])
lost_found = fields.Many2One(
'stock.location', 'Lost and Found', required=True,
domain=[('type', '=', 'lost_found')], states=STATES, depends=DEPENDS)
lines = fields.One2Many(
'stock.inventory.line', 'inventory', 'Lines', states=STATES,
depends=DEPENDS)
company = fields.Many2One('company.company', 'Company', required=True,
states={
'readonly': (Eval('state') != 'draft') | Eval('lines', [0]),
},
depends=['state'])
state = fields.Selection(
INVENTORY_STATES, 'State', readonly=True, select=True)
@classmethod
def __setup__(cls):
super(Inventory, cls).__setup__()
cls._order.insert(0, ('date', 'DESC'))
cls._error_messages.update({
'delete_cancel': ('Inventory "%s" must be cancelled before '
'deletion.'),
'unique_line': ('Line "%s" is not unique '
'on Inventory "%s".'),
})
cls._transitions |= set((
('draft', 'done'),
('draft', 'cancel'),
))
cls._buttons.update({
'confirm': {
'invisible': Eval('state').in_(['done', 'cancel']),
},
'cancel': {
'invisible': Eval('state').in_(['cancel', 'done']),
},
'complete_lines': {
'readonly': Eval('state') != 'draft',
},
})
@classmethod
def __register__(cls, module_name):
TableHandler = backend.get('TableHandler')
super(Inventory, cls).__register__(module_name)
# Add index on create_date
table = TableHandler(cls, module_name)
table.index_action('create_date', action='add')
@staticmethod
def default_state():
return 'draft'
@staticmethod
def default_date():
Date = Pool().get('ir.date')
return Date.today()
@staticmethod
def default_company():
return Transaction().context.get('company')
@classmethod
def default_lost_found(cls):
Location = Pool().get('stock.location')
locations = Location.search(cls.lost_found.domain)
if len(locations) == 1:
return locations[0].id
@classmethod
def delete(cls, inventories):
# Cancel before delete
cls.cancel(inventories)
for inventory in inventories:
if inventory.state != 'cancel':
cls.raise_user_error('delete_cancel', inventory.rec_name)
super(Inventory, cls).delete(inventories)
@classmethod
@ModelView.button
@Workflow.transition('done')
def confirm(cls, inventories):
Move = Pool().get('stock.move')
moves = []
for inventory in inventories:
keys = set()
for line in inventory.lines:
key = line.unique_key
if key in keys:
cls.raise_user_error('unique_line',
(line.rec_name, inventory.rec_name))
keys.add(key)
move = line.get_move()
if move:
moves.append(move)
if moves:
Move.save(moves)
Move.do(moves)
@classmethod
@ModelView.button
@Workflow.transition('cancel')
def cancel(cls, inventories):
Line = Pool().get("stock.inventory.line")
Line.cancel_move([l for i in inventories for l in i.lines])
@classmethod
def create(cls, vlist):
pool = Pool()
Sequence = pool.get('ir.sequence')
Configuration = pool.get('stock.configuration')
config = Configuration(1)
vlist = [x.copy() for x in vlist]
for values in vlist:
if values.get('number') is None:
values['number'] = Sequence.get_id(
config.inventory_sequence.id)
inventories = super(Inventory, cls).create(vlist)
cls.complete_lines(inventories, fill=False)
return inventories
@classmethod
def write(cls, inventories, values):
super(Inventory, cls).write(inventories, values)
cls.complete_lines(inventories, fill=False)
@classmethod
def copy(cls, inventories, default=None):
pool = Pool()
Date = pool.get('ir.date')
Line = pool.get('stock.inventory.line')
if default is None:
default = {}
default = default.copy()
default['date'] = Date.today()
default['lines'] = None
default.setdefault('number')
new_inventories = []
for inventory in inventories:
new_inventory, = super(Inventory, cls).copy([inventory],
default=default)
Line.copy(inventory.lines,
default={
'inventory': new_inventory.id,
'moves': None,
})
cls.complete_lines([new_inventory], fill=False)
new_inventories.append(new_inventory)
return new_inventories
@staticmethod
def grouping():
return ('product',)
@classmethod
@ModelView.button
def complete_lines(cls, inventories, fill=True):
'''
Complete or update the inventories
'''
pool = Pool()
Line = pool.get('stock.inventory.line')
Product = pool.get('product.product')
grouping = cls.grouping()
to_create, to_write = [], []
for inventory in inventories:
# Once done computation is wrong because include created moves
if inventory.state == 'done':
continue
# Compute product quantities
if fill:
product_ids = None
else:
product_ids = [l.product.id for l in inventory.lines]
with Transaction().set_context(stock_date_end=inventory.date):
pbl = Product.products_by_location(
[inventory.location.id], product_ids=product_ids,
grouping=grouping)
# Index some data
product2type = {}
product2consumable = {}
for product in Product.browse([line[1] for line in pbl]):
product2type[product.id] = product.type
product2consumable[product.id] = product.consumable
# Update existing lines
for line in inventory.lines:
if not (line.product.type == 'goods'
and not line.product.consumable):
Line.delete([line])
continue
key = (inventory.location.id,) + line.unique_key
if key in pbl:
quantity = pbl.pop(key)
else:
quantity = 0.0
values = line.update_values4complete(quantity)
if values:
to_write.extend(([line], values))
if not fill:
continue
# Create lines if needed
for key, quantity in pbl.items():
product_id = key[grouping.index('product') + 1]
if (product2type[product_id] != 'goods'
or product2consumable[product_id]):
continue
if not quantity:
continue
values = Line.create_values4complete(inventory, quantity)
for i, fname in enumerate(grouping, 1):
values[fname] = key[i]
to_create.append(values)
if to_create:
Line.create(to_create)
if to_write:
Line.write(*to_write)
class InventoryLine(ModelSQL, ModelView):
'Stock Inventory Line'
__name__ = 'stock.inventory.line'
_states = {
'readonly': Eval('inventory_state') != 'draft',
}
_depends = ['inventory_state']
product = fields.Many2One('product.product', 'Product', required=True,
domain=[
('type', '=', 'goods'),
('consumable', '=', False),
], states=_states, depends=_depends)
uom = fields.Function(fields.Many2One('product.uom', 'UOM'), 'get_uom')
unit_digits = fields.Function(fields.Integer('Unit Digits'),
'get_unit_digits')
expected_quantity = fields.Float('Expected Quantity', required=True,
digits=(16, Eval('unit_digits', 2)), readonly=True,
depends=['unit_digits'])
quantity = fields.Float('Quantity', required=True,
digits=(16, Eval('unit_digits', 2)),
states=_states, depends=['unit_digits'] + _depends)
moves = fields.One2Many('stock.move', 'origin', 'Moves', readonly=True)
inventory = fields.Many2One('stock.inventory', 'Inventory', required=True,
ondelete='CASCADE',
states={
'readonly': _states['readonly'] & Bool(Eval('inventory')),
},
depends=_depends)
inventory_state = fields.Function(
fields.Selection(INVENTORY_STATES, 'Inventory State'),
'on_change_with_inventory_state')
@classmethod
def __setup__(cls):
super(InventoryLine, cls).__setup__()
t = cls.__table__()
cls._sql_constraints += [
('check_line_qty_pos', Check(t, t.quantity >= 0),
'Line quantity must be positive.'),
]
cls._order.insert(0, ('product', 'ASC'))
@classmethod
def __register__(cls, module_name):
TableHandler = backend.get('TableHandler')
cursor = Transaction().connection.cursor()
pool = Pool()
Move = pool.get('stock.move')
sql_table = cls.__table__()
move_table = Move.__table__()
super(InventoryLine, cls).__register__(module_name)
table = TableHandler(cls, module_name)
# Migration from 2.8: Remove constraint inventory_product_uniq
table.drop_constraint('inventory_product_uniq')
# Migration from 3.0: use Move origin
if table.column_exist('move'):
cursor.execute(*sql_table.select(sql_table.id, sql_table.move,
where=sql_table.move != Null))
for line_id, move_id in cursor.fetchall():
cursor.execute(*move_table.update(
columns=[move_table.origin],
values=['%s,%s' % (cls.__name__, line_id)],
where=move_table.id == move_id))
table.drop_column('move')
@staticmethod
def default_unit_digits():
return 2
@staticmethod
def default_expected_quantity():
return 0.
@fields.depends('product')
def on_change_product(self):
self.unit_digits = 2
if self.product:
self.uom = self.product.default_uom
self.unit_digits = self.product.default_uom.digits
@fields.depends('inventory', '_parent_inventory.state')
def on_change_with_inventory_state(self, name=None):
if self.inventory:
return self.inventory.state
return 'draft'
def get_rec_name(self, name):
return self.product.rec_name
@classmethod
def search_rec_name(cls, name, clause):
return [('product.rec_name',) + tuple(clause[1:])]
def get_uom(self, name):
return self.product.default_uom.id
def get_unit_digits(self, name):
return self.product.default_uom.digits
@property
def unique_key(self):
key = []
for fname in self.inventory.grouping():
value = getattr(self, fname)
if isinstance(value, Model):
value = value.id
key.append(value)
return tuple(key)
@classmethod
def cancel_move(cls, lines):
Move = Pool().get('stock.move')
moves = [m for l in lines for m in l.moves if l.moves]
Move.cancel(moves)
Move.delete(moves)
def get_move(self):
'''
Return Move instance for the inventory line
'''
pool = Pool()
Move = pool.get('stock.move')
Uom = pool.get('product.uom')
delta_qty = Uom.compute_qty(self.uom,
self.expected_quantity - self.quantity,
self.uom)
if delta_qty == 0.0:
return
from_location = self.inventory.location
to_location = self.inventory.lost_found
if delta_qty < 0:
(from_location, to_location, delta_qty) = \
(to_location, from_location, -delta_qty)
return Move(
from_location=from_location,
to_location=to_location,
quantity=delta_qty,
product=self.product,
uom=self.uom,
company=self.inventory.company,
effective_date=self.inventory.date,
origin=self,
)
def update_values4complete(self, quantity):
'''
Return update values to complete inventory
'''
values = {}
# if nothing changed, no update
if self.quantity == self.expected_quantity == quantity:
return values
values['expected_quantity'] = quantity
# update also quantity field if not edited
if self.quantity == self.expected_quantity:
values['quantity'] = max(quantity, 0.0)
return values
@classmethod
def create_values4complete(cls, inventory, quantity):
'''
Return create values to complete inventory
'''
return {
'inventory': inventory.id,
'expected_quantity': quantity,
'quantity': max(quantity, 0.0),
}
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