59 lines
2.1 KiB
Python
59 lines
2.1 KiB
Python
from trytond.model import ModelSQL, ModelView, fields, Unique
|
|
from trytond.pyson import Eval, Bool
|
|
from trytond.pool import PoolMeta, Pool
|
|
|
|
|
|
class BOM(metaclass=PoolMeta):
|
|
__name__ = 'production.bom'
|
|
drawing = fields.Many2One('production.drawing', 'Drawing',
|
|
ondelete='RESTRICT')
|
|
drawing_lines = fields.One2Many('production.bom.drawing.line',
|
|
'bom', 'Drawing Positions', states={
|
|
'invisible': ~Bool(Eval('drawing')),
|
|
})
|
|
drawing_image = fields.Function(fields.Binary('Drawing Image'),
|
|
'on_change_with_drawing_image')
|
|
|
|
@fields.depends('drawing', 'drawing_lines')
|
|
def on_change_with_drawing_lines(self):
|
|
DrawingLine = Pool().get('production.bom.drawing.line')
|
|
if not self.drawing:
|
|
return []
|
|
res = []
|
|
for position in self.drawing.positions:
|
|
res.append(DrawingLine(position=position))
|
|
return res
|
|
|
|
@fields.depends('drawing')
|
|
def on_change_with_drawing_image(self, name=None):
|
|
return self.drawing.image if self.drawing else None
|
|
|
|
|
|
class BOMDrawingLine(ModelSQL, ModelView):
|
|
'Production BOM Drawing Line'
|
|
__name__ = 'production.bom.drawing.line'
|
|
bom = fields.Many2One('production.bom', 'BOM', required=True,
|
|
ondelete='CASCADE')
|
|
position = fields.Many2One('production.drawing.position',
|
|
'Drawing Position', required=True, ondelete='RESTRICT', domain=[
|
|
('drawing', '=', Eval('drawing', -1)),
|
|
], states={
|
|
'readonly': True,
|
|
}, depends=['drawing'])
|
|
drawing = fields.Function(fields.Many2One('production.drawing', 'Drawing'),
|
|
'get_drawing')
|
|
product = fields.Many2One('product.product', 'Product',
|
|
ondelete='RESTRICT')
|
|
|
|
@classmethod
|
|
def __setup__(cls):
|
|
super(BOMDrawingLine, cls).__setup__()
|
|
t = cls.__table__()
|
|
cls._sql_constraints += [
|
|
('check_bom_drawing_line_uniq', Unique(t, t.bom, t.position),
|
|
'Drawing Position must be unique per BOM.'),
|
|
]
|
|
|
|
def get_drawing(self, name):
|
|
return self.bom.drawing.id if self.bom.drawing else None
|