221 lines
8.3 KiB
Python
221 lines
8.3 KiB
Python
#This file is part of Tryton. The COPYRIGHT file at the top level of this repository contains the full copyright notices and license terms.
|
|
from trytond.osv import fields, OSV, OPERATORS
|
|
from decimal import Decimal
|
|
|
|
STATES = {
|
|
'readonly': "active == False",
|
|
}
|
|
|
|
class UomCategory(OSV):
|
|
'Product uom category'
|
|
_name = 'product.uom.category'
|
|
_description = __doc__
|
|
name = fields.Char('Name', required=True, translate=True)
|
|
uoms = fields.One2Many('product.uom', 'category', 'Unit of Measures')
|
|
|
|
def __init__(self):
|
|
super(UomCategory, self).__init__()
|
|
self._order.insert(0, ('name', 'ASC'))
|
|
|
|
UomCategory()
|
|
|
|
|
|
class Uom(OSV):
|
|
'Unit of measure'
|
|
_name = 'product.uom'
|
|
_description = __doc__
|
|
name = fields.Char('Name', size=None, required=True, states=STATES,
|
|
translate=True)
|
|
symbol = fields.Char('Symbol', size=10, required=True, states=STATES,
|
|
translate=True)
|
|
category = fields.Many2One('product.uom.category', 'UOM Category',
|
|
required=True, ondelete='cascade', states=STATES)
|
|
rate = fields.Float('Rate', digits=(12, 6), required=True,
|
|
on_change=['rate'], states=STATES,
|
|
help='The coefficient for the formula:\n' \
|
|
'1 (base unit) = coef (this unit)')
|
|
factor = fields.Float('Factor', digits=(12, 6), states=STATES,
|
|
on_change=['factor'], required=True,
|
|
help='The coefficient for the formula:\n' \
|
|
'coef (base unit) = 1 (this unit)')
|
|
rounding = fields.Float('Rounding Precision', digits=(12, 6),
|
|
required=True, states=STATES)
|
|
digits = fields.Integer('Display Digits')
|
|
active = fields.Boolean('Active')
|
|
|
|
def __init__(self):
|
|
super(Uom, self).__init__()
|
|
self._order.insert(0, ('name', 'ASC'))
|
|
|
|
def check_xml_record(self, cursor, user, ids, values, context=None):
|
|
return True
|
|
|
|
def default_rate(self, cursor, user, context=None):
|
|
return 1.0
|
|
|
|
def default_factor(self, cursor, user, context=None):
|
|
return 1.0
|
|
|
|
def default_active(self, cursor, user, context=None):
|
|
return 1
|
|
|
|
def default_rounding(self, cursor, user, context=None):
|
|
return 0.01
|
|
|
|
def default_digits(self, cursor, user, context=None):
|
|
return 2
|
|
|
|
def on_change_factor(self, cursor, user, ids, value, context=None):
|
|
if value.get('factor', 0.0) == 0.0:
|
|
return {'rate': 0.0}
|
|
return {'rate': round(1.0/value['factor'], 6)}
|
|
|
|
def on_change_rate(self, cursor, user, ids, value, context=None):
|
|
if value.get('rate', 0.0) == 0.0:
|
|
return {'factor': 0.0}
|
|
return {'factor': round(1.0/value['rate'], 6)}
|
|
|
|
|
|
def __init__(self):
|
|
super(Uom, self).__init__()
|
|
self._sql_constraints += [
|
|
('non_zero_rate_factor', 'CHECK((rate != 0.0) or (factor != 0.0))',
|
|
'Rate and factor can not be both equal to zero.')
|
|
]
|
|
|
|
|
|
@staticmethod
|
|
def round(number, precision=1.0):
|
|
return round(number / precision) * precision
|
|
|
|
@staticmethod
|
|
def check_factor_and_rate(values):
|
|
factor = None
|
|
rate = None
|
|
if ('factor' not in values) and ('rate' not in values):
|
|
return values
|
|
elif 'factor' in values and 'rate' in values:
|
|
if values['rate'] == 0.0 and values['factor'] == 0.0:
|
|
return values
|
|
elif values['factor'] != 0.0 and \
|
|
values['rate'] != 0.0:
|
|
if values['rate'] == round(1.0/values['factor'], 6) or \
|
|
values['factor'] == round(1.0/values['rate'], 6):
|
|
return values
|
|
else:
|
|
factor = round(1.0/values['rate'], 6)
|
|
elif values['rate'] != 0.0 and \
|
|
values['factor'] != round(1.0/values['rate'], 6):
|
|
factor = round(1.0/values['rate'], 6)
|
|
elif values['factor'] != 0.0 and \
|
|
values['rate'] != round(1.0/values['factor'], 6):
|
|
rate = round(1.0/values['factor'], 6)
|
|
else:
|
|
return values
|
|
elif 'rate' in values:
|
|
if values['rate'] != 0.0:
|
|
factor = round(1.0/values['rate'], 6)
|
|
else:
|
|
factor = 0.0
|
|
elif 'factor' in values:
|
|
if values['factor'] != 0.0:
|
|
rate = round(1.0/values['factor'], 6)
|
|
else:
|
|
rate = 0.0
|
|
|
|
if rate != None or factor != None:
|
|
values = values.copy()
|
|
if rate != None: values['rate'] = rate
|
|
if factor != None: values['factor'] = factor
|
|
return values
|
|
|
|
def create(self, cursor, user, values, context=None):
|
|
values = self.check_factor_and_rate(values)
|
|
return super(Uom, self).create(cursor, user, values, context)
|
|
|
|
def write(self, cursor, user, ids, values, context=None):
|
|
values = self.check_factor_and_rate(values)
|
|
return super(Uom, self).write(cursor, user, ids, values, context)
|
|
|
|
def compute_qty(self, cursor, user, from_uom, qty, to_uom=False,
|
|
context=None):
|
|
"""
|
|
Convert quantity for given uom's. from_uom and to_uom should
|
|
be browse records.
|
|
"""
|
|
if not from_uom or not qty or not to_uom:
|
|
return qty
|
|
if from_uom.category.id <> to_uom.category.id:
|
|
return qty
|
|
if from_uom.factor >= 1.0: # Choose the more precise field.
|
|
amount = qty * from_uom.factor
|
|
else:
|
|
amount = qty / from_uom.rate
|
|
if to_uom:
|
|
if to_uom.factor >= 1.0:
|
|
amount = self.round(amount / to_uom.factor, to_uom.rounding)
|
|
else:
|
|
amount = self.round(amount * to_uom.rate, to_uom.rounding)
|
|
return amount
|
|
|
|
def compute_price(self, cursor, user, from_uom, price, to_uom=False,
|
|
context=None):
|
|
"""
|
|
Convert price for given uom's. from_uom and to_uom should be
|
|
browse records.
|
|
"""
|
|
if not from_uom or not price or not to_uom:
|
|
return price
|
|
if from_uom.category.id <> to_uom.category.id:
|
|
return price
|
|
|
|
if from_uom.factor >= 1.0:
|
|
new_price = price / Decimal(str(from_uom.factor))
|
|
else:
|
|
new_price = price * Decimal(str(from_uom.rate))
|
|
|
|
if to_uom.factor >= 1.0:
|
|
new_price = new_price * Decimal(str(to_uom.factor))
|
|
else:
|
|
new_price = new_price / Decimal(str(to_uom.rate))
|
|
|
|
return new_price
|
|
|
|
def search(self, cursor, user, args, offset=0, limit=None, order=None,
|
|
context=None, count=False, query_string=False):
|
|
product_obj = self.pool.get('product.product')
|
|
args = args[:]
|
|
def process_args(args):
|
|
i = 0
|
|
while i < len(args):
|
|
#add test for xmlrpc that doesn't handle tuple
|
|
if (isinstance(args[i], tuple) \
|
|
or (isinstance(args[i], list) and len(args[i]) > 2 \
|
|
and args[i][1] in OPERATORS)) \
|
|
and args[i][0] == 'category' \
|
|
and isinstance(args[i][2], (list, tuple)) \
|
|
and len(args[i][2]) == 2 \
|
|
and args[i][2][1] in ('product.default_uom.category',
|
|
'uom.category'):
|
|
if not args[i][2][0]:
|
|
args[i] = ('id', '!=', '0')
|
|
else:
|
|
if args[i][2][1] == 'product.default_uom.category':
|
|
product = product_obj.browse(cursor, user,
|
|
args[i][2][0], context=context)
|
|
category_id = product.default_uom.category.id
|
|
else:
|
|
uom = self.browse(cursor, user, args[i][2][0],
|
|
context=context)
|
|
category_id = uom.category.id
|
|
args[i] = (args[i][0], args[i][1], category_id)
|
|
elif isinstance(args[i], list):
|
|
process_args(args[i])
|
|
i += 1
|
|
process_args(args)
|
|
return super(Uom, self).search(cursor, user, args, offset=offset,
|
|
limit=limit, order=order, context=context, count=count,
|
|
query_string=query_string)
|
|
|
|
Uom()
|