151 lines
5.6 KiB
Python
151 lines
5.6 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.i18n import gettext
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from trytond.model import fields
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from trytond.pool import PoolMeta
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from trytond.pyson import Eval, Bool
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from trytond.modules.product import uom_conversion_digits
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from trytond.modules.product.exceptions import UOMValidationError
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class PurchaseSecondaryMixin:
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__slots__ = ()
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purchase_secondary_uom = fields.Many2One(
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'product.uom', "Purchase Secondary UOM",
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domain=[
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('category', '!=', Eval('default_uom_category')),
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],
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depends=['default_uom_category'])
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purchase_secondary_uom_factor = fields.Float(
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"Purchase Secondary UOM Factor", digits=uom_conversion_digits,
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states={
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'required': Bool(Eval('purchase_secondary_uom')),
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'invisible': ~Eval('purchase_secondary_uom'),
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},
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depends=['purchase_secondary_uom'],
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help="The coefficient for the formula:\n"
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"1 (purchase unit) = coefficient (secondary unit)")
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purchase_secondary_uom_rate = fields.Float(
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"Purchase Secondary UOM Rate", digits=uom_conversion_digits,
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states={
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'required': Bool(Eval('purchase_secondary_uom')),
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'invisible': ~Eval('purchase_secondary_uom'),
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},
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depends=['purchase_secondary_uom'],
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help="The coefficient for the formula:\n"
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"coefficient (purchase unit) = 1 (secondary unit)")
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@fields.depends('purchase_secondary_uom_factor')
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def on_change_purchase_secondary_uom_factor(self):
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if not self.purchase_secondary_uom_factor:
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self.purchase_secondary_uom_rate = None
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else:
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self.purchase_secondary_uom_rate = round(
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1. / self.purchase_secondary_uom_factor,
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uom_conversion_digits[1])
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@fields.depends('purchase_secondary_uom_rate')
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def on_change_purchase_secondary_uom_rate(self):
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if not self.purchase_secondary_uom_rate:
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self.purchase_secondary_uom_factor = None
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else:
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self.purchase_secondary_uom_factor = round(
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1. / self.purchase_secondary_uom_rate,
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uom_conversion_digits[1])
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@property
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def purchase_secondary_uom_normal_rate(self):
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uom = self.purchase_secondary_uom
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rate = self.purchase_secondary_uom_rate
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if self.purchase_uom and rate and uom:
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if self.purchase_uom.accurate_field == 'factor':
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rate *= self.purchase_uom.factor
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else:
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rate /= self.purchase_uom.rate
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if uom.accurate_field == 'factor':
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rate /= uom.factor
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else:
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rate *= uom.rate
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return rate
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@property
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def purchase_secondary_uom_normal_factor(self):
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uom = self.purchase_secondary_uom
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factor = self.purchase_secondary_uom_factor
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if self.purchase_uom and factor and uom:
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if uom.accurate_field == 'factor':
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factor *= uom.factor
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else:
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factor /= uom.rate
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if self.purchase_uom.accurate_field == 'factor':
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factor /= self.purchase_uom.factor
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else:
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factor *= self.purchase_uom.rate
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return factor
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@classmethod
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def validate(cls, records):
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super().validate(records)
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for record in records:
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record.check_purchase_secondary_uom_factor_and_rate()
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def check_purchase_secondary_uom_factor_and_rate(self):
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factor = self.purchase_secondary_uom_factor
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rate = self.purchase_secondary_uom_rate
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if factor and rate:
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if ((rate != round(1. / factor, uom_conversion_digits[1]))
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and factor != round(1. / rate, uom_conversion_digits[1])):
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raise UOMValidationError(
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gettext('purchase_secondary_unit'
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'.msg_secondary_uom_incompatible_factor_rate',
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record=self))
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class Template(PurchaseSecondaryMixin, metaclass=PoolMeta):
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__name__ = 'product.template'
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@classmethod
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def __setup__(cls):
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super().__setup__()
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cls.purchase_secondary_uom.states = {
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'invisible': ~Eval('purchasable', False),
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}
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cls.purchase_secondary_uom.depends.append('purchasable')
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class Product(metaclass=PoolMeta):
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__name__ = 'product.product'
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@property
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def purchase_secondary_uom_normal_rate(self):
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return self.template.purchase_secondary_uom_normal_rate
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@property
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def purchase_secondary_uom_normal_factor(self):
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return self.template.purchase_secondary_uom_normal_factor
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class ProductSupplier(PurchaseSecondaryMixin, metaclass=PoolMeta):
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__name__ = 'purchase.product_supplier'
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default_uom_category = fields.Function(
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fields.Many2One('product.uom.category', "Default UOM Category"),
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'on_change_with_default_uom_category')
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@fields.depends('template', '_parent_template.purchase_uom',
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'product', '_parent_product.purchase_uom')
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def on_change_with_default_uom_category(self, name=None):
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if self.product and self.product.purchase_uom:
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return self.product.purchase_uom.category.id
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elif self.template and self.template.purchase_uom:
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return self.template.purchase_uom.category.id
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@property
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def purchase_uom(self):
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if self.product and self.product.purchase_uom:
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return self.product.purchase_uom
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elif self.template and self.template.purchase_uom:
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return self.template.purchase_uom
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