1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
|
#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 decimal import Decimal
from trytond.model import ModelView, ModelSQL, fields
from trytond.model.modelstorage import OPERATORS
from trytond.pyson import Eval
from trytond.transaction import Transaction
from trytond.pool import Pool
STATES = {
'readonly': ~Eval('active', True),
}
DEPENDS = ['active']
class UomCategory(ModelSQL, ModelView):
'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(ModelSQL, ModelView):
'Unit of measure'
_name = 'product.uom'
_description = __doc__
name = fields.Char('Name', size=None, required=True, states=STATES,
translate=True, depends=DEPENDS)
symbol = fields.Char('Symbol', size=10, required=True, states=STATES,
translate=True, depends=DEPENDS)
category = fields.Many2One('product.uom.category', 'UOM Category',
required=True, ondelete='RESTRICT', states=STATES, depends=DEPENDS)
rate = fields.Float('Rate', digits=(12, 12), required=True,
on_change=['rate'], states=STATES, depends=DEPENDS,
help='The coefficient for the formula:\n' \
'1 (base unit) = coef (this unit)')
factor = fields.Float('Factor', digits=(12, 12), states=STATES,
on_change=['factor'], required=True, depends=DEPENDS,
help='The coefficient for the formula:\n' \
'coef (base unit) = 1 (this unit)')
rounding = fields.Float('Rounding Precision', digits=(12, 12),
required=True, states=STATES, depends=DEPENDS)
digits = fields.Integer('Display Digits')
active = fields.Boolean('Active')
def init(self, module_name):
cursor = Transaction().cursor
# Migration from 1.6: corrected misspelling of ounce (was once)
cursor.execute("UPDATE ir_model_data "\
"SET fs_id = REPLACE(fs_id, 'uom_once', 'uom_ounce') "\
"WHERE fs_id = 'uom_once' AND module = 'product'")
super(Uom, self).init(module_name)
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.')
]
self._constraints += [
('check_factor_and_rate', 'invalid_factor_and_rate'),
]
self._order.insert(0, ('name', 'ASC'))
self._error_messages.update({
'change_uom_rate_title': 'You cannot change Rate, Factor or '
'Category on a Unit of Measure. ',
'change_uom_rate': 'If the UOM is still not used, you can '
'delete it otherwise you can deactivate it '
'and create a new one.',
'invalid_factor_and_rate': 'Invalid Factor and Rate values!',
})
def check_xml_record(self, ids, values):
return True
def default_rate(self):
return 1.0
def default_factor(self):
return 1.0
def default_active(self):
return 1
def default_rounding(self):
return 0.01
def default_digits(self):
return 2
def default_category(self):
category_obj = Pool().get('product.uom.category')
product_obj = Pool().get('product.product')
context = Transaction().context
if 'category' in context:
if isinstance(context['category'], (tuple, list)) \
and len(context['category']) > 1 \
and context['category'][1] in ('uom.category',
'product.default_uom.category'):
if context['category'][1] == 'uom.category':
if not context['category'][0]:
return False
uom = self.browse(context['category'][0])
return uom.category.id
else:
if not context['category'][0]:
return False
product = product_obj.browse(context['category'][0])
return product.default_uom.category.id
return False
def on_change_factor(self, value):
if value.get('factor', 0.0) == 0.0:
return {'rate': 0.0}
return {'rate': round(1.0 / value['factor'], self.rate.digits[1])}
def on_change_rate(self, value):
if value.get('rate', 0.0) == 0.0:
return {'factor': 0.0}
return {'factor': round(1.0 / value['rate'], self.factor.digits[1])}
def search_rec_name(self, name, clause):
ids = self.search(['OR',
(self._rec_name,) + clause[1:],
('symbol',) + clause[1:],
], order=[])
return [('id', 'in', ids)]
@staticmethod
def round(number, precision=1.0):
return round(number / precision) * precision
def check_factor_and_rate(self, ids):
"Check coherence between factor and rate"
for uom in self.browse(ids):
if uom.rate == uom.factor == 0.0:
continue
if uom.rate != round(1.0 / uom.factor, self.rate.digits[1]) and \
uom.factor != round(1.0 / uom.rate, self.factor.digits[1]):
return False
return True
def write(self, ids, values):
if Transaction().user == 0:
return super(Uom, self).write(ids, values)
if 'rate' not in values and 'factor' not in values \
and 'category' not in values:
return super(Uom, self).write(ids, values)
if isinstance(ids, (int, long)):
ids = [ids]
uoms = self.browse(ids)
old_uom = dict((uom.id, (uom.factor, uom.rate, uom.category.id)) \
for uom in uoms)
res = super(Uom, self).write(ids, values)
uoms = self.browse(ids)
for uom in uoms:
if uom.factor != old_uom[uom.id][0] \
or uom.rate != old_uom[uom.id][1] \
or uom.category.id != old_uom[uom.id][2]:
self.raise_user_error('change_uom_rate_title',
error_description='change_uom_rate')
return res
def select_accurate_field(self, uom):
"""
Select the more accurate field.
It chooses the field that has the least decimal.
:param uom: a BrowseRecord of UOM.
:return: 'factor' or 'rate'.
"""
lengths = {}
for field in ('rate', 'factor'):
format = '%%.%df' % getattr(self, field).digits[1]
lengths[field] = len((format % getattr(uom,
field)).split('.')[1].rstrip('0'))
if lengths['rate'] < lengths['factor']:
return 'rate'
elif lengths['factor'] < lengths['rate']:
return 'factor'
elif uom.factor >= 1.0:
return 'factor'
else:
return 'rate'
def compute_qty(self, from_uom, qty, to_uom=None, round=True):
"""
Convert quantity for given uom's.
:param from_uom: a BrowseRecord of product.uom
:param qty: an int or long or float value
:param to_uom: a BrowseRecord of product.uom
:param round: a boolean to round or not the result
:return: the converted quantity
"""
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 self.select_accurate_field(from_uom) == 'factor':
amount = qty * from_uom.factor
else:
amount = qty / from_uom.rate
if to_uom is not None:
if self.select_accurate_field(to_uom) == 'factor':
amount = amount / to_uom.factor
else:
amount = amount * to_uom.rate
if round:
amount = self.round(amount, to_uom.rounding)
return amount
def compute_price(self, from_uom, price, to_uom=False):
"""
Convert price for given uom's.
:param from_uom: a BrowseRecord of product.uom
:param price: a Decimal value
:param to_uom: a BrowseRecord of product.uom
:return: the converted price
"""
if not from_uom or not price or not to_uom:
return price
if from_uom.category.id != to_uom.category.id:
return price
factor_format = '%%.%df' % self.factor.digits[1]
rate_format = '%%.%df' % self.rate.digits[1]
if self.select_accurate_field(from_uom) == 'factor':
new_price = price / Decimal(factor_format % from_uom.factor)
else:
new_price = price * Decimal(rate_format % from_uom.rate)
if self.select_accurate_field(to_uom) == 'factor':
new_price = new_price * Decimal(factor_format % to_uom.factor)
else:
new_price = new_price / Decimal(rate_format % to_uom.rate)
return new_price
def search(self, args, offset=0, limit=None, order=None,
count=False, query_string=False):
product_obj = 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(args[i][2][0])
category_id = product.default_uom.category.id
else:
uom = self.browse(args[i][2][0])
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(args, offset=offset, limit=limit,
order=order, count=count,
query_string=query_string)
Uom()
|
