Grades are not consistently sync'd from Moodle to Arlo about moodle-enrol_arlo HOT 10 CLOSED

Encountered the same issue on Multi-session event. No grades were synced
event: https://arlomoodleqa.builds.arlosoftware.net/management/Console/#/events/1031/registrations
moodle course: https://dev-arlo.elearning.ac.nz/grade/report/grader/index.php?id=26

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Looking at API log the update result request returning a 400. Maybe date precision for last access.

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XML Request

<?xml version="1.0" encoding="utf-8"?>
<diff>
    <add sel="Registration">
        <LastActivityDateTime>2017-08-01T15:04:20.000+00:00</LastActivityDateTime>
    </add>
    <add sel="Registration">
        <ProgressStatus>Not started</ProgressStatus>
    </add>
</diff>

@fentosi Looks to be failing on DateTime. I guessing this is the DateTime precision patch?

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Did a retest on multi-region online activity to confirm that the issue was not caused by the load testing (10k registrations)

Moodle:
https://9-7-17213-1001-bravo.builds.arlosoftware.net/management/Console/#/onlineactivities/6/registrations
Arlo:
https://dev-arlo.elearning.ac.nz/enrol/users.php?id=33

Aside from Grades, the following are also not coming through:

1. Result

2. Last accessed

   • Should get the value from Users list > Last access to course column
     

3. Progress status

4. Comments

   • Should we get the value from Grade administration > Grader report > Course Total (edit) > Feedback value?
     
     

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@ArloSoftwareTeam I have pushed precision fix b4e6b63 to UAT. I have also increased the frequency of the completion mark as started task. It will now run hourly rather than daily. Can you please retest.

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4. Gradebook feedback does not get pushed to Arlo as a comment. Out of scope for this project.

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Failed retest on latest build. Grades have not synced after an hour and 30 mins:
https://dev-arlo.elearning.ac.nz/enrol/users.php?id=36
https://arlomoodledemo.arlo.co/management/Console/#/onlineactivities/1014

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@ArloSoftwareTeam This relates to DateTime precision issue. Current platform being used is arlomoodledemo.arlo.co which is using format: Y-m-d\TH:i:s.000+00:00

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I've set the datetimeprecision setting for the arlomoodledemo.arlo.co platform. Please retest now.

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It's syncing grades now. Testing basic and online activity. Any bugs found will be outside of sync issue so closing this bug

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