def test_might_have_changes_returns_true(self):
justin = Person(first_name='Justin', last_name='Trudeau')
justin.save()
serializer = PersonSerializer(justin, data={
'first_name': 'Justin',
'last_name': 'Trudeau2',
'partner': ''
})
might_have_changes = serializers.might_have_changes(serializer)
self.assertTrue(might_have_changes)
def process_row(self, row, data, context):
if data.processed:
return
serializer = self.serializer(instance=data.instance,
data=row.data.copy(),
context=context,
partial=data.instance is not None)
if not serializers.might_have_changes(serializer):
row.status = RowStatus.unchanged
data.processed = True
return
is_valid = serializer.is_valid()
has_changes = serializers.has_changes(serializer)
cannot_update = (
data.instance
and (has_changes or not is_valid)
and not self.can_update_object(data.instance)
)
if cannot_update:
row.set_error(self.error_messages['cannot_update'])
data.processed = True
return
if not is_valid:
row.set_errors(serializer.errors)
data.processed = True
return
if not has_changes:
row.status = RowStatus.unchanged
data.processed = True
return
if serializer.instance:
row.status = RowStatus.update
row.diff = serializers.get_diff_data(serializer)
serializer.save()
data.processed = True
else:
row.status = RowStatus.new
row.diff = serializers.get_diff_data(serializer)
data.instance = serializer.save()
data.processed = True
self.cache_instance(context, data.instance)