/usr/lib/python2.7/dist-packages/trytond/modules/purchase_request/purchase_request.py is in tryton-modules-purchase-request 4.2.0-1.
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.
import datetime
from decimal import Decimal
from itertools import groupby
from functools import partial
from sql import Null
from sql.conditionals import Case
from trytond import backend
from trytond.model import ModelView, ModelSQL, fields
from trytond.wizard import Wizard, StateView, StateTransition, Button
from trytond.pyson import If, In, Eval, Bool
from trytond.transaction import Transaction
from trytond.pool import Pool
__all__ = ['PurchaseRequest',
'CreatePurchaseAskParty', 'CreatePurchase',
'HandlePurchaseCancellationException',
'HandlePurchaseCancellationExceptionStart',
]
STATES = {
'readonly': Eval('state') != 'draft',
}
DEPENDS = ['state']
class PurchaseRequest(ModelSQL, ModelView):
'Purchase Request'
__name__ = 'purchase.request'
product = fields.Many2One('product.product', 'Product',
select=True, readonly=True, domain=[('purchasable', '=', True)])
description = fields.Text('Description', readonly=True,
states={
'required': ~Eval('product'),
'readonly': STATES['readonly'],
},
depends=['product'] + DEPENDS)
party = fields.Many2One('party.party', 'Party', select=True, states=STATES,
depends=DEPENDS)
quantity = fields.Float('Quantity', required=True, states=STATES,
digits=(16, Eval('uom_digits', 2)), depends=DEPENDS + ['uom_digits'])
uom = fields.Many2One('product.uom', 'UOM', select=True,
states={
'required': Bool(Eval('product')),
'readonly': STATES['readonly'],
},
depends=['product'] + DEPENDS)
uom_digits = fields.Function(fields.Integer('UOM Digits'),
'on_change_with_uom_digits')
computed_quantity = fields.Float('Computed Quantity', readonly=True)
computed_uom = fields.Many2One('product.uom', 'Computed UOM',
readonly=True)
purchase_date = fields.Date('Best Purchase Date', readonly=True)
supply_date = fields.Date('Expected Supply Date', readonly=True)
default_uom_digits = fields.Function(fields.Integer('Default UOM Digits'),
'on_change_with_default_uom_digits')
stock_level = fields.Float('Stock at Supply Date', readonly=True,
digits=(16, Eval('default_uom_digits', 2)),
depends=['default_uom_digits'])
warehouse = fields.Many2One(
'stock.location', "Warehouse",
states={
'required': Eval('warehouse_required', False),
},
domain=[('type', '=', 'warehouse')], depends=['warehouse_required'],
readonly=True)
warehouse_required = fields.Function(fields.Boolean('Warehouse Required'),
'get_warehouse_required')
purchase_line = fields.Many2One('purchase.line', 'Purchase Line',
readonly=True)
purchase = fields.Function(fields.Many2One('purchase.purchase',
'Purchase'), 'get_purchase', searcher='search_purchase')
company = fields.Many2One('company.company', 'Company', required=True,
readonly=True, domain=[
('id', If(In('company', Eval('context', {})), '=', '!='),
Eval('context', {}).get('company', -1)),
])
origin = fields.Reference('Origin', selection='get_origin', readonly=True,
required=True)
exception_ignored = fields.Boolean('Ignored Exception')
state = fields.Function(fields.Selection([
('purchased', 'Purchased'),
('done', 'Done'),
('draft', 'Draft'),
('cancel', 'Cancel'),
('exception', 'Exception'),
], 'State'), 'get_state', searcher='search_state')
@classmethod
def __setup__(cls):
super(PurchaseRequest, cls).__setup__()
cls._order[0] = ('id', 'DESC')
cls._error_messages.update({
'create_request': ('Purchase requests are only created '
'by the system.'),
'delete_purchase_line': ('You can not delete purchased '
'request.'),
})
cls._buttons.update({
'handle_purchase_cancellation_exception': {
'invisible': Eval('state') != 'exception',
},
})
@classmethod
def __register__(cls, module_name):
pool = Pool()
ModelData = pool.get('ir.model.data')
TableHandler = backend.get('TableHandler')
model_data = ModelData.__table__()
super(PurchaseRequest, cls).__register__(module_name)
# Migration from 3.6: removing the constraint on the quantity
tablehandler = TableHandler(cls, module_name)
tablehandler.drop_constraint('check_purchase_request_quantity')
# Migration from 3.8: renaming module of Purchase Request group entry
cursor = Transaction().connection.cursor()
cursor.execute(*model_data.update(
columns=[model_data.module],
values=['purchase_request'],
where=((model_data.fs_id == 'group_purchase_request')
& (model_data.module == 'stock_supply'))))
# Migration from 4.0: remove required on product and uom
tablehandler.not_null_action('product', action='remove')
tablehandler.not_null_action('uom', action='remove')
def get_rec_name(self, name):
product_name = (self.product.name if self.product else
self.description.splitlines()[0])
if self.warehouse:
return "%s@%s" % (product_name, self.warehouse.name)
else:
return product_name
@classmethod
def search_rec_name(cls, name, clause):
res = []
names = clause[2].split('@', 1)
res.append(('product.template.name', clause[1], names[0]))
if len(names) != 1 and names[1]:
res.append(('warehouse', clause[1], names[1]))
return ['OR', res,
('description',) + tuple(clause[1:]),
]
@staticmethod
def default_company():
return Transaction().context.get('company')
@staticmethod
def default_exception_ignored():
return False
def get_purchase(self, name):
if self.purchase_line:
return self.purchase_line.purchase.id
@classmethod
def search_purchase(cls, name, clause):
return [('purchase_line.purchase',) + tuple(clause[1:])]
@property
def currency(self):
return self.company.currency
def get_state(self, name):
if self.purchase_line:
if (self.purchase_line.purchase.state == 'cancel'
and not self.exception_ignored):
return 'exception'
elif self.purchase_line.purchase.state == 'cancel':
return 'cancel'
elif self.purchase_line.purchase.state == 'done':
return 'done'
else:
return 'purchased'
return 'draft'
@classmethod
def search_state(cls, name, clause):
pool = Pool()
Purchase = pool.get('purchase.purchase')
PurchaseLine = pool.get('purchase.line')
request = cls.__table__()
purchase_line = PurchaseLine.__table__()
purchase = Purchase.__table__()
_, operator_, state = clause
Operator = fields.SQL_OPERATORS[operator_]
state_case = Case(
((purchase.state == 'cancel')
& (request.exception_ignored == False), 'exception'),
((purchase.state == 'cancel')
& (request.exception_ignored == True), 'cancel'),
(purchase.state == 'done', 'done'),
(request.purchase_line != Null, 'purchased'),
else_='draft')
state_query = request.join(
purchase_line, type_='LEFT',
condition=request.purchase_line == purchase_line.id
).join(purchase, type_='LEFT',
condition=purchase_line.purchase == purchase.id
).select(
request.id,
where=Operator(state_case, state))
return [('id', 'in', state_query)]
def get_warehouse_required(self, name):
return self.product and self.product.type in ('goods', 'assets')
@fields.depends('uom')
def on_change_with_uom_digits(self, name=None):
if self.uom:
return self.uom.digits
return 2
@fields.depends('product')
def on_change_with_default_uom_digits(self, name=None):
if self.product:
return self.product.default_uom.digits
return 2
@classmethod
def _get_origin(cls):
'Return the set of Model names for origin Reference'
return set()
@classmethod
def get_origin(cls):
pool = Pool()
IrModel = pool.get('ir.model')
models = IrModel.search([
('model', 'in', list(cls._get_origin())),
])
return [(m.model, m.name) for m in models]
@classmethod
def create(cls, vlist):
for vals in vlist:
for field_name in ('quantity', 'company'):
if vals.get(field_name) is None:
cls.raise_user_error('create_request')
return super(PurchaseRequest, cls).create(vlist)
@classmethod
def delete(cls, requests):
if any(r.purchase_line for r in requests):
cls.raise_user_error('delete_purchase_line')
super(PurchaseRequest, cls).delete(requests)
@classmethod
def find_best_supplier(cls, product, date):
'''
Return the best supplier and purchase_date for the product.
'''
Date = Pool().get('ir.date')
supplier = None
today = Date.today()
for product_supplier in product.product_suppliers:
supply_date = product_supplier.compute_supply_date(date=today)
timedelta = date - supply_date
if not supplier and timedelta >= datetime.timedelta(0):
supplier = product_supplier.party
break
if supplier:
purchase_date = product_supplier.compute_purchase_date(date)
else:
purchase_date = today
return supplier, purchase_date
@classmethod
@ModelView.button_action(
'purchase_request.wizard_purchase_cancellation_handle_exception')
def handle_purchase_cancellation_exception(cls, purchases):
pass
class CreatePurchaseAskParty(ModelView):
'Create Purchase Ask Party'
__name__ = 'purchase.request.create_purchase.ask_party'
product = fields.Many2One('product.product', 'Product', readonly=True)
description = fields.Text('Description', readonly=True)
company = fields.Many2One('company.company', 'Company', readonly=True)
party = fields.Many2One('party.party', 'Supplier', required=True)
class CreatePurchase(Wizard):
'Create Purchase'
__name__ = 'purchase.request.create_purchase'
start = StateTransition()
ask_party = StateView('purchase.request.create_purchase.ask_party',
'purchase_request.purchase_request_create_purchase_ask_party', [
Button('Cancel', 'end', 'tryton-cancel'),
Button('Continue', 'start', 'tryton-go-next', default=True),
])
@classmethod
def __setup__(cls):
super(CreatePurchase, cls).__setup__()
cls._error_messages.update({
'missing_price': 'Purchase price is missing for product "%s".',
'please_update': ('This price is necessary for creating '
'purchases.'),
})
def default_ask_party(self, fields):
Request = Pool().get('purchase.request')
requests = Request.browse(Transaction().context['active_ids'])
for request in requests:
if request.purchase_line:
continue
if not request.party:
break
return {
'product': request.product.id if request.product else None,
'description': request.description,
'company': request.company.id,
}
@staticmethod
def _group_purchase_key(requests, request):
'''
The key to group lines by purchases
A list of key-value as tuples of the purchase
'''
return (
('company', request.company),
('party', request.party),
('payment_term', request.party.supplier_payment_term),
('warehouse', request.warehouse),
('currency', request.currency),
('invoice_address', request.party.address_get(type='invoice')),
)
def _group_purchase_line_key(self, request):
'''
The key to group requests by lines
A list of key-value as tuples of the purchase line
'''
return (
('product', request.product),
('description', request.description),
('unit', request.uom),
)
def transition_start(self):
pool = Pool()
Request = pool.get('purchase.request')
Purchase = pool.get('purchase.purchase')
Date = pool.get('ir.date')
request_ids = Transaction().context['active_ids']
if (getattr(self.ask_party, 'party', None)
and getattr(self.ask_party, 'company', None)):
reqs = Request.search([
('id', 'in', request_ids),
('purchase_line', '=', None),
('party', '=', None),
('product', '=', (self.ask_party.product.id
if self.ask_party.product else None)),
('description', '=', self.ask_party.description),
])
if reqs:
Request.write(reqs, {
'party': self.ask_party.party.id,
})
self.ask_party.product = None
self.ask_party.description = None
self.ask_party.party = None
self.ask_party.company = None
reqs = Request.search([
('id', 'in', request_ids),
('purchase_line', '=', None),
('party', '=', None),
])
if reqs:
return 'ask_party'
today = Date.today()
requests = Request.browse(request_ids)
requests = [r for r in requests if not r.purchase_line]
keyfunc = partial(self._group_purchase_key, requests)
requests = sorted(requests, key=keyfunc)
for key, grouped_requests in groupby(requests, key=keyfunc):
grouped_requests = list(grouped_requests)
try:
purchase_date = min(r.purchase_date
for r in grouped_requests
if r.purchase_date)
except ValueError:
purchase_date = today
if purchase_date < today:
purchase_date = today
purchase = Purchase(purchase_date=purchase_date)
for f, v in key:
setattr(purchase, f, v)
purchase.save()
for line_key, line_requests in groupby(
grouped_requests, key=self._group_purchase_line_key):
line_requests = list(line_requests)
line = self.compute_purchase_line(
line_key, line_requests, purchase)
line.purchase = purchase
line.save()
Request.write(line_requests, {
'purchase_line': line.id,
})
return 'end'
@staticmethod
def _get_tax_rule_pattern(line, purchase):
'''
Get tax rule pattern
'''
return {}
@classmethod
def compute_purchase_line(cls, key, requests, purchase):
pool = Pool()
Product = pool.get('product.product')
Line = pool.get('purchase.line')
line = Line()
for f, v in key:
setattr(line, f, v)
if not line.description:
line.description = line.product.name
line.quantity = sum(r.quantity for r in requests)
if not getattr(line, 'unit_price', None):
if line.product and line.unit:
with Transaction().set_context(uom=line.unit.id,
supplier=purchase.party.id,
currency=purchase.currency.id):
product_price = Product.get_purchase_price(
[line.product], line.quantity)[line.product.id]
else:
product_price = Decimal(0)
product_price = product_price.quantize(
Decimal(1) / 10 ** Line.unit_price.digits[1])
line.unit_price = product_price
if line.product:
taxes = []
for tax in line.product.supplier_taxes_used:
if purchase.party and purchase.party.supplier_tax_rule:
pattern = cls._get_tax_rule_pattern(line, purchase)
tax_ids = purchase.party.supplier_tax_rule.apply(
tax, pattern)
if tax_ids:
taxes.extend(tax_ids)
continue
taxes.append(tax.id)
line.taxes = taxes
return line
class HandlePurchaseCancellationException(Wizard):
'Handle Purchase Cancellation Exception'
__name__ = 'purchase.request.handle.purchase.cancellation'
start = StateView('purchase.request.handle.purchase.cancellation.start',
'purchase_request.handle_purchase_cancellation_start', [
Button('Cancel', 'end', 'tryton-cancel'),
Button('Reset to draft', 'reset', 'tryton-clear'),
Button('Cancel Request', 'cancel_request', 'tryton-delete',
default=True),
])
reset = StateTransition()
cancel_request = StateTransition()
def transition_reset(self):
pool = Pool()
PurchaseRequest = pool.get('purchase.request')
requests = PurchaseRequest.browse(Transaction().context['active_ids'])
PurchaseRequest.write(requests, {
'purchase_line': None,
})
return 'end'
def transition_cancel_request(self):
pool = Pool()
PurchaseRequest = pool.get('purchase.request')
requests = PurchaseRequest.browse(Transaction().context['active_ids'])
PurchaseRequest.write(requests, {
'exception_ignored': True,
})
return 'end'
class HandlePurchaseCancellationExceptionStart(ModelView):
'Handle Purchase Cancellation Exception - Start'
__name__ = 'purchase.request.handle.purchase.cancellation.start'
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