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[1.8.x] Fixed #26498 -- Fixed TimeField microseconds round-tripping on MySQL and SQLite. 

Thanks adamchainz for the report and review.

Backport of d3c87a2425 from master
This commit is contained in:
Lukasz Wiecek 2016-04-13 17:31:31 +01:00 committed by Tim Graham
parent a61b26a651
commit 0a411b2224
3 changed files with 6 additions and 2 deletions
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2
django/db/backends/utils.py
View File

@ -125,7 +125,7 @@ def typecast_time(s): # does NOT store time zone information
seconds, microseconds = seconds.split('.')
else:
microseconds = '0'
return datetime.time(int(hour), int(minutes), int(seconds), int(float('.' + microseconds) * 1000000))
return datetime.time(int(hour), int(minutes), int(seconds), int((microseconds + '000000')[:6]))
def typecast_timestamp(s): # does NOT store time zone information

3
docs/releases/1.8.13.txt
View File

@ -9,4 +9,5 @@ Django 1.8.13 fixes several bugs in 1.8.12.
Bugfixes
========
* ...
* Fixed ``TimeField`` microseconds round-tripping on MySQL and SQLite
(:ticket:`26498`).

3
tests/db_typecasts/tests.py
View File

@ -27,6 +27,9 @@ TEST_CASES = {
('00:00:12', datetime.time(0, 0, 12)),
('00:00:12.5', datetime.time(0, 0, 12, 500000)),
('7:22:13.312', datetime.time(7, 22, 13, 312000)),
('12:45:30.126631', datetime.time(12, 45, 30, 126631)),
('12:45:30.126630', datetime.time(12, 45, 30, 126630)),
('12:45:30.123456789', datetime.time(12, 45, 30, 123456)),
),
'typecast_timestamp': (
('', None),