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DateTimeField to_representation can handle strings. Fixes #4013.

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This commit is contained in:
cabbagenom 2016-03-26 18:10:02 +00:00
parent c1802db1eb
commit ead620521e
2 changed files with 23 additions and 0 deletions
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14
rest_framework/fields.py
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@ -1072,10 +1072,24 @@ class DateTimeField(Field):
return value
if output_format.lower() == ISO_8601:
if isinstance(value, str):
format_strings = (format_prefix + timezone_extension
for format_prefix in ('%Y-%m-%dT%H:%M', '%Y-%m-%dT%H:%M:%S', '%Y-%m-%dT%H:%M:%S.%f')
for timezone_extension in ('', '%Z', '%z'))
for format_string in format_strings:
try:
value = datetime.datetime.strptime(value, format_string)
break
except ValueError:
pass
else:
raise ValueError('DateTime String %s did not match any valid format string.' % value)
value = value.isoformat()
if value.endswith('+00:00'):
value = value[:-6] + 'Z'
return value
return value.strftime(output_format)

9
tests/test_fields.py
View File

@ -978,6 +978,15 @@ class TestDateTimeField(FieldValues):
outputs = {
datetime.datetime(2001, 1, 1, 13, 00): '2001-01-01T13:00:00',
datetime.datetime(2001, 1, 1, 13, 00, tzinfo=timezone.UTC()): '2001-01-01T13:00:00Z',
'2001-01-01T01:01': '2001-01-01T01:01:00',
'2001-01-01T01:01:01': '2001-01-01T01:01:01',
'2001-01-01T01:01:01.01': '2001-01-01T01:01:01.010000',
'2001-01-01T01:01+0100': '2001-01-01T01:01:00+01:00',
'2001-01-01T01:01:01+0100': '2001-01-01T01:01:01+01:00',
'2001-01-01T01:01:01.01+0100': '2001-01-01T01:01:01.010000+01:00',
'2001-01-01T01:01UTC': '2001-01-01T01:01:00',
'2001-01-01T01:01:01UTC': '2001-01-01T01:01:01',
'2001-01-01T01:01:01.01UTC': '2001-01-01T01:01:01.010000',
None: None,
'': None,
}