Does Numbas 4.0 resolve linking issues with course cloning? (Moodle)

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joshua...@gmail.com

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Aug 11, 2025, 10:45:54 PMAug 11
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Hi Numbas Users,

We haven't started using Numbas 4.0 at our institution yet, but I noticed the announcement for Numbas 4.0 says it supports deep linking (https://www.numbas.org.uk/blog/2024/07/numbas-lti-provider-v4-0/).

Does deep linking mean copied courses in Moodle would automatically link to the correct material on the LTI? This is what occurs for our Möbius material using that platform's LTI.

I notice GitHub issue #128 is still open, so this suggests the material still needs to be set up again after a course is imported: https://github.com/numbas/numbas-lti-provider/issues/128 (but that was about Blackboard, so it may not be relevant to Moodle).

Regards,
Joshua Capel

Christian Lawson-Perfect

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Aug 26, 2025, 5:35:52 AMAug 26
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Hi Josh,
Sorry it's taken a while to respond to this - I was busy with the Numbas v9 release.

No, deep linking doesn't solve the problem.

The root of the problem is that there isn't a standard way for the platform to tell us when a link is copied from somewhere else. So while the new LTI 1.3 deep linking scheme means that a copied link still sends us enough information to work out which resource to show, we don't know it's copied. You don't want last year's attempts mixed up with this year's, so the ideal behaviour would be for it to automatically make a copy of the resource, using the same exam but with a fresh empty list of attempts.

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