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
|
# This file is part of Tryton. The COPYRIGHT file at the top level of
# this repository contains the full copyright notices and license terms.
import datetime
from sql.functions import AtTimeZone, Function
from trytond import backend
from trytond.pyson import PYSON, PYSONEncoder
from trytond.tools import cached_property
from .field import Field, get_eval_fields
class SQLite_Date(Function):
__slots__ = ()
_function = 'DATE'
class SQLite_DateTime(Function):
__slots__ = ()
_function = 'DATETIME'
class SQLite_Time(Function):
__slots__ = ()
_function = 'TIME'
class Date(Field):
'''
Define a date field (``date``).
'''
_type = 'date'
_sql_type = 'DATE'
_py_type = datetime.date
def sql_format(self, value):
if isinstance(value, str):
value = datetime.date.fromisoformat(value)
elif isinstance(value, datetime.datetime):
if value.time() != datetime.time():
raise ValueError("Date field can not have time")
return super().sql_format(value)
def sql_cast(self, expression, timezone=None):
if backend.name == 'sqlite':
return SQLite_Date(expression)
if timezone:
expression = AtTimeZone(expression, 'utc')
expression = AtTimeZone(expression, timezone)
return super(Date, self).sql_cast(expression)
def __set__(self, inst, value):
if isinstance(value, str):
value = datetime.date.fromisoformat(value)
super().__set__(inst, value)
class FormatMixin(Field):
def definition(self, model, language):
encoder = PYSONEncoder()
definition = super().definition(model, language)
definition['format'] = encoder.encode(self.format)
return definition
@cached_property
def display_depends(self):
depends = super().display_depends
if isinstance(self.format, PYSON):
depends |= get_eval_fields(self.format)
return depends
@cached_property
def validation_depends(self):
depends = super().display_depends
if isinstance(self.format, PYSON):
depends |= get_eval_fields(self.format)
return depends
class Timestamp(FormatMixin, Field):
'''
Define a timestamp field (``datetime``).
'''
_type = 'timestamp'
_sql_type = 'TIMESTAMP'
_py_type = datetime.datetime
format = '%H:%M:%S.%f'
def sql_format(self, value):
if isinstance(value, str):
value = datetime.datetime.fromisoformat(value)
return super().sql_format(value)
def sql_cast(self, expression):
if backend.name == 'sqlite':
return SQLite_DateTime(expression)
return super().sql_cast(expression)
def __set__(self, inst, value):
if isinstance(value, str):
value = datetime.datetime.fromisoformat(value)
super().__set__(inst, value)
class DateTime(Timestamp):
'''
Define a datetime field (``datetime``).
'''
_type = 'datetime'
_sql_type = 'DATETIME'
def __init__(self, string='', format='%H:%M:%S', help='', required=False,
readonly=False, domain=None, states=None,
on_change=None, on_change_with=None, depends=None,
context=None, loading='eager'):
'''
:param format: The validation format as used by strftime.
'''
super(DateTime, self).__init__(string=string, help=help,
required=required, readonly=readonly, domain=domain, states=states,
on_change=on_change, on_change_with=on_change_with,
depends=depends, context=context, loading=loading)
self.format = format
__init__.__doc__ += Field.__init__.__doc__
def sql_format(self, value):
value = super().sql_format(value)
if isinstance(value, datetime.datetime):
value = value.replace(microsecond=0)
return value
class Time(FormatMixin, Field):
'''
Define a time field (``time``).
'''
_type = 'time'
_sql_type = 'TIME'
_py_type = datetime.time
def __init__(self, string='', format='%H:%M:%S', help='', required=False,
readonly=False, domain=None, states=None,
on_change=None, on_change_with=None, depends=None,
context=None, loading='eager'):
'''
:param format: The validation format as used by strftime.
'''
super().__init__(string=string, help=help,
required=required, readonly=readonly, domain=domain, states=states,
on_change=on_change, on_change_with=on_change_with,
depends=depends, context=context, loading=loading)
self.format = format
def sql_format(self, value):
if isinstance(value, str):
value = datetime.time.fromisoformat(value)
value = super().sql_format(value)
if isinstance(value, datetime.time):
value = value.replace(microsecond=0)
return value
def sql_cast(self, expression):
if backend.name == 'sqlite':
return SQLite_Time(expression)
return super(Time, self).sql_cast(expression)
def __set__(self, inst, value):
if isinstance(value, str):
value = datetime.time.fromisoformat(value)
super().__set__(inst, value)
class TimeDelta(Field):
'''
Define a timedelta field (``timedelta``).
'''
_type = 'timedelta'
_sql_type = 'INTERVAL'
_py_type = datetime.timedelta
def __init__(self, string='', converter=None, help='', required=False,
readonly=False, domain=None, states=None,
on_change=None, on_change_with=None, depends=None,
context=None, loading='eager'):
'''
:param converter: The name of the context key containing
the time converter.
'''
super(TimeDelta, self).__init__(string=string, help=help,
required=required, readonly=readonly, domain=domain, states=states,
on_change=on_change, on_change_with=on_change_with,
depends=depends, context=context, loading=loading)
self.converter = converter
def sql_format(self, value):
if isinstance(value, (int, float)):
value = datetime.timedelta(seconds=value)
elif isinstance(value, str):
hours, minutes, seconds = (value.split(":") + ['00'])[:3]
value = datetime.timedelta(
hours=int(hours), minutes=int(minutes), seconds=float(seconds))
return super().sql_format(value)
def __set__(self, inst, value):
if isinstance(value, (int, float)):
value = datetime.timedelta(seconds=value)
elif isinstance(value, str):
hours, minutes, seconds = (value.split(":") + ['00'])[:3]
value = datetime.timedelta(
hours=int(hours), minutes=int(minutes), seconds=float(seconds))
super().__set__(inst, value)
@classmethod
def get(cls, ids, model, name, values=None):
result = {}
for row in values:
value = row[name]
if (value is not None
and not isinstance(value, datetime.timedelta)):
if value >= datetime.timedelta.max.total_seconds():
value = datetime.timedelta.max
elif value <= datetime.timedelta.min.total_seconds():
value = datetime.timedelta.min
else:
value = datetime.timedelta(seconds=value)
result[row['id']] = value
else:
result[row['id']] = value
return result
def definition(self, model, language):
definition = super().definition(model, language)
definition['converter'] = self.converter
return definition
|
