/usr/lib/python3/dist-packages/trytond/modules/production/bom.py is in tryton-modules-production 4.6.1-1.
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 trytond.model import ModelView, ModelSQL, fields, Unique
from trytond.wizard import Wizard, StateView, Button
from trytond.transaction import Transaction
from trytond.pyson import Eval
from trytond.pool import Pool
__all__ = ['BOM', 'BOMInput', 'BOMOutput', 'BOMTree', 'OpenBOMTreeStart',
'OpenBOMTreeTree', 'OpenBOMTree']
class BOM(ModelSQL, ModelView):
"Bill of Material"
__name__ = 'production.bom'
name = fields.Char('Name', required=True, translate=True)
active = fields.Boolean('Active', select=1)
inputs = fields.One2Many('production.bom.input', 'bom', 'Inputs')
outputs = fields.One2Many('production.bom.output', 'bom', 'Outputs')
output_products = fields.Many2Many('production.bom.output',
'bom', 'product', 'Output Products')
@staticmethod
def default_active():
return True
def compute_factor(self, product, quantity, uom):
'''
Compute factor for an output product
'''
Uom = Pool().get('product.uom')
for output in self.outputs:
if output.product == product:
if not output.quantity:
return 0.0
quantity = Uom.compute_qty(uom, quantity,
output.uom, round=False)
return quantity / output.quantity
@classmethod
def copy(cls, records, default=None):
if default is None:
default = {}
else:
default = default.copy()
default['output_products'] = False
return super(BOM, cls).copy(records, default=default)
class BOMInput(ModelSQL, ModelView):
"Bill of Material Input"
__name__ = 'production.bom.input'
bom = fields.Many2One('production.bom', 'BOM', required=True,
select=1, ondelete='CASCADE')
product = fields.Many2One('product.product', 'Product',
required=True, domain=[
('type', '!=', 'service'),
])
uom_category = fields.Function(fields.Many2One(
'product.uom.category', 'Uom Category'), 'on_change_with_uom_category')
uom = fields.Many2One('product.uom', 'Uom', required=True,
domain=[
('category', '=', Eval('uom_category')),
], depends=['uom_category'])
unit_digits = fields.Function(fields.Integer('Unit Digits'),
'on_change_with_unit_digits')
quantity = fields.Float('Quantity', required=True,
domain=['OR',
('quantity', '>=', 0),
('quantity', '=', None),
],
digits=(16, Eval('unit_digits', 2)),
depends=['unit_digits'])
@classmethod
def __setup__(cls):
super(BOMInput, cls).__setup__()
t = cls.__table__()
cls._sql_constraints = [
('product_bom_uniq', Unique(t, t.product, t.bom),
'product_bom_uniq'),
]
cls._error_messages.update({
'product_bom_uniq': 'Product must be unique per BOM.',
'recursive_bom': 'You can not create recursive BOMs.',
})
@fields.depends('product', 'uom')
def on_change_product(self):
if self.product:
category = self.product.default_uom.category
if not self.uom or self.uom.category != category:
self.uom = self.product.default_uom
self.unit_digits = self.product.default_uom.digits
else:
self.uom = None
self.unit_digits = 2
@fields.depends('product')
def on_change_with_uom_category(self, name=None):
if self.product:
return self.product.default_uom.category.id
@fields.depends('uom')
def on_change_with_unit_digits(self, name=None):
if self.uom:
return self.uom.digits
return 2
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:])]
@classmethod
def validate(cls, boms):
super(BOMInput, cls).validate(boms)
for bom in boms:
bom.check_bom_recursion()
def check_bom_recursion(self):
'''
Check BOM recursion
'''
self.product.check_bom_recursion()
def compute_quantity(self, factor):
return self.uom.ceil(self.quantity * factor)
class BOMOutput(BOMInput):
"Bill of Material Output"
__name__ = 'production.bom.output'
_table = 'production_bom_output' # Needed to override BOMInput._table
def compute_quantity(self, factor):
return self.uom.floor(self.quantity * factor)
@classmethod
def delete(cls, outputs):
pool = Pool()
ProductBOM = pool.get('product.product-production.bom')
bom_products = [b for o in outputs for b in o.product.boms]
super(BOMOutput, cls).delete(outputs)
# Validate that output_products domain on bom is still valid
ProductBOM._validate(bom_products, ['bom'])
class BOMTree(ModelView):
'BOM Tree'
__name__ = 'production.bom.tree'
product = fields.Many2One('product.product', 'Product')
quantity = fields.Float('Quantity', digits=(16, Eval('unit_digits', 2)),
depends=['unit_digits'])
uom = fields.Many2One('product.uom', 'Uom')
unit_digits = fields.Integer('Unit Digits')
childs = fields.One2Many('production.bom.tree', None, 'Childs')
@classmethod
def tree(cls, product, quantity, uom, bom=None):
Input = Pool().get('production.bom.input')
result = []
if bom is None:
if not product.boms:
return result
bom = product.boms[0].bom
factor = bom.compute_factor(product, quantity, uom)
for input_ in bom.inputs:
quantity = Input.compute_quantity(input_, factor)
childs = cls.tree(input_.product, quantity, input_.uom)
values = {
'product': input_.product.id,
'product.rec_name': input_.product.rec_name,
'quantity': quantity,
'uom': input_.uom.id,
'uom.rec_name': input_.uom.rec_name,
'unit_digits': input_.uom.digits,
'childs': childs,
}
result.append(values)
return result
class OpenBOMTreeStart(ModelView):
'Open BOM Tree'
__name__ = 'production.bom.tree.open.start'
quantity = fields.Float('Quantity', required=True,
digits=(16, Eval('unit_digits', 2)), depends=['unit_digits'])
uom = fields.Many2One('product.uom', 'Unit', required=True,
domain=[
('category', '=', Eval('category')),
], depends=['category'])
unit_digits = fields.Integer('Unit Digits', readonly=True)
category = fields.Many2One('product.uom.category', 'Category',
readonly=True)
bom = fields.Many2One('product.product-production.bom',
'BOM', required=True, domain=[
('product', '=', Eval('product')),
], depends=['product'])
product = fields.Many2One('product.product', 'Product', readonly=True)
@fields.depends('uom')
def on_change_with_unit_digits(self):
if self.uom:
return self.uom.digits
return 2
class OpenBOMTreeTree(ModelView):
'Open BOM Tree'
__name__ = 'production.bom.tree.open.tree'
bom_tree = fields.One2Many('production.bom.tree', None, 'BOM Tree',
readonly=True)
@classmethod
def tree(cls, bom, product, quantity, uom):
pool = Pool()
Tree = pool.get('production.bom.tree')
childs = Tree.tree(product, quantity, uom, bom=bom)
bom_tree = [{
'product': product.id,
'product.rec_name': product.rec_name,
'quantity': quantity,
'uom': uom.id,
'uom.rec_name': uom.rec_name,
'unit_digits': uom.digits,
'childs': childs,
}]
return {
'bom_tree': bom_tree,
}
class OpenBOMTree(Wizard):
'Open BOM Tree'
__name__ = 'production.bom.tree.open'
start = StateView('production.bom.tree.open.start',
'production.bom_tree_open_start_view_form', [
Button('Cancel', 'end', 'tryton-cancel'),
Button('OK', 'tree', 'tryton-ok', True),
])
tree = StateView('production.bom.tree.open.tree',
'production.bom_tree_open_tree_view_form', [
Button('Change', 'start', 'tryton-go-previous'),
Button('Close', 'end', 'tryton-close'),
])
def default_start(self, fields):
Product = Pool().get('product.product')
defaults = {}
product = Product(Transaction().context['active_id'])
defaults['category'] = product.default_uom.category.id
if getattr(self.start, 'uom', None):
defaults['uom'] = self.start.uom.id
defaults['unit_digits'] = self.start.unit_digits
else:
defaults['uom'] = product.default_uom.id
defaults['unit_digits'] = product.default_uom.digits
defaults['product'] = product.id
if getattr(self.start, 'bom', None):
defaults['bom'] = self.start.bom.id
elif product.boms:
defaults['bom'] = product.boms[0].id
defaults['quantity'] = getattr(self.start, 'quantity', None)
return defaults
def default_tree(self, fields):
pool = Pool()
BomTree = pool.get('production.bom.tree.open.tree')
return BomTree.tree(self.start.bom.bom, self.start.product,
self.start.quantity, self.start.uom)
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