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1# pysqlite2/dbapi2.py: the DB-API 2.0 interface
2#
3# Copyright (C) 2004-2005 Gerhard Häring <gh@ghaering.de>
4#
5# This file is part of pysqlite.
6#
7# This software is provided 'as-is', without any express or implied
8# warranty.  In no event will the authors be held liable for any damages
9# arising from the use of this software.
10#
11# Permission is granted to anyone to use this software for any purpose,
12# including commercial applications, and to alter it and redistribute it
13# freely, subject to the following restrictions:
14#
15# 1. The origin of this software must not be misrepresented; you must not
16#    claim that you wrote the original software. If you use this software
17#    in a product, an acknowledgment in the product documentation would be
18#    appreciated but is not required.
19# 2. Altered source versions must be plainly marked as such, and must not be
20#    misrepresented as being the original software.
21# 3. This notice may not be removed or altered from any source distribution.
22
23import datetime
24import time
25import collections.abc
26
27from _sqlite3 import *
28
29paramstyle = "qmark"
30
31threadsafety = 1
32
33apilevel = "2.0"
34
35Date = datetime.date
36
37Time = datetime.time
38
39Timestamp = datetime.datetime
40
41def DateFromTicks(ticks):
42    return Date(*time.localtime(ticks)[:3])
43
44def TimeFromTicks(ticks):
45    return Time(*time.localtime(ticks)[3:6])
46
47def TimestampFromTicks(ticks):
48    return Timestamp(*time.localtime(ticks)[:6])
49
50version_info = tuple([int(x) for x in version.split(".")])
51sqlite_version_info = tuple([int(x) for x in sqlite_version.split(".")])
52
53Binary = memoryview
54collections.abc.Sequence.register(Row)
55
56def register_adapters_and_converters():
57    def adapt_date(val):
58        return val.isoformat()
59
60    def adapt_datetime(val):
61        return val.isoformat(" ")
62
63    def convert_date(val):
64        return datetime.date(*map(int, val.split(b"-")))
65
66    def convert_timestamp(val):
67        datepart, timepart = val.split(b" ")
68        year, month, day = map(int, datepart.split(b"-"))
69        timepart_full = timepart.split(b".")
70        hours, minutes, seconds = map(int, timepart_full[0].split(b":"))
71        if len(timepart_full) == 2:
72            microseconds = int('{:0<6.6}'.format(timepart_full[1].decode()))
73        else:
74            microseconds = 0
75
76        val = datetime.datetime(year, month, day, hours, minutes, seconds, microseconds)
77        return val
78
79
80    register_adapter(datetime.date, adapt_date)
81    register_adapter(datetime.datetime, adapt_datetime)
82    register_converter("date", convert_date)
83    register_converter("timestamp", convert_timestamp)
84
85register_adapters_and_converters()
86
87# bpo-24464: enable_shared_cache was deprecated in Python 3.10.  It's
88# scheduled for removal in Python 3.12.
89def enable_shared_cache(enable):
90    from _sqlite3 import enable_shared_cache as _old_enable_shared_cache
91    import warnings
92    msg = (
93        "enable_shared_cache is deprecated and will be removed in Python 3.12. "
94        "Shared cache is strongly discouraged by the SQLite 3 documentation. "
95        "If shared cache must be used, open the database in URI mode using"
96        "the cache=shared query parameter."
97    )
98    warnings.warn(msg, DeprecationWarning, stacklevel=2)
99    return _old_enable_shared_cache(enable)
100
101# Clean up namespace
102
103del(register_adapters_and_converters)
104