94 lines
3.1 KiB
Python
94 lines
3.1 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 sql import Null
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from sql.conditionals import Case
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from trytond.model import ModelView, ModelSQL, fields
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from trytond.pyson import Eval, Get, If, Bool
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from trytond.pool import PoolMeta
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__all__ = ['Product', 'ProductBom']
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class Product:
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__metaclass__ = PoolMeta
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__name__ = 'product.product'
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boms = fields.One2Many('product.product-production.bom', 'product',
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'BOMs', order=[('sequence', 'ASC'), ('id', 'ASC')],
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states={
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'invisible': (Eval('type', 'service').in_(['service', None])
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& (Eval('_parent_template', {}).get(
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'type', 'service').in_(['service', None]))),
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},
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depends=['type'])
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@classmethod
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def __setup__(cls):
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super(Product, cls).__setup__()
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cls._error_messages.update({
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'recursive_bom': ('You are trying to create a recursive BOM '
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'with product "%s" which is not allowed.'),
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})
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@classmethod
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def validate(cls, products):
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super(Product, cls).validate(products)
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for product in products:
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product.check_bom_recursion()
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def check_bom_recursion(self, product=None):
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'''
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Check BOM recursion
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'''
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if product is None:
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product = self
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for product_bom in self.boms:
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for input_ in product_bom.bom.inputs:
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if (input_.product == product or
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input_.product.check_bom_recursion(product=product)):
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self.raise_user_error('recursive_bom', (product.rec_name,))
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@classmethod
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def copy(cls, products, default=None):
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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.setdefault('boms', None)
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return super(Product, cls).copy(products, default=default)
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class ProductBom(ModelSQL, ModelView):
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'Product - BOM'
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__name__ = 'product.product-production.bom'
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product = fields.Many2One('product.product', 'Product',
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ondelete='CASCADE', select=1, required=True,
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domain=[
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('type', '!=', 'service'),
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])
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bom = fields.Many2One('production.bom', 'BOM', ondelete='CASCADE',
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select=1, required=True, domain=[
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('output_products', '=', If(Bool(Eval('product')),
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Eval('product', 0),
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Get(Eval('_parent_product', {}), 'id', 0))),
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], depends=['product'])
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sequence = fields.Integer('Sequence')
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@classmethod
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def __setup__(cls):
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super(ProductBom, cls).__setup__()
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cls._order.insert(0, ('sequence', 'ASC'))
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def get_rec_name(self, name):
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return self.bom.rec_name
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@classmethod
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def search_rec_name(cls, name, clause):
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return [('bom.rec_name',) + tuple(clause[1:])]
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@staticmethod
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def order_sequence(tables):
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table, _ = tables[None]
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return [Case((table.sequence == Null, 0), else_=1), table.sequence]
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