RDFa schema.org Course issues on Google Search Console

[igobranco]

Bug Report

Problematic Behavior The Google Search Console complains about missing some information.

Errors / problems:

• [ ] Missing field 'offers'
• [ ] Missing field 'hasCourseInstance'
• [ ] Either 'courseWorkload' or 'courseSchedule' should be specified (in 'hasCourseInstance')

Using https://search.google.com/test/rich-results/result online tool to validate and view the details of RDFa fields crawled by Google.

Expected behavior/code Missing the courseSchedule https://schema.org/CourseInstance or a courseWorkload.

CourseSchedule Testing a different MOOC platform using course page link on https://search.google.com/test/rich-results/result: it shows CourseSchedule example data.

offers Testing a different MOOC platform using course page link on https://search.google.com/test/rich-results/result: It shows an offers example data.

Missing field hasCourseInstance The archived couse pages didn't contains a hasCourseInstance tag.

Steps to Reproduce Use https://search.google.com/test/rich-results/result tool.

[igobranco]

Google recommends the use of JSON-LD instead of using RDFa, reference: https://developers.google.com/search/docs/appearance/structured-data/intro-structured-data

I also think that generating this information on python would be easier than managing it on tags at the middle of the page. But this change would be a major change.

[igobranco]

Currently we still have issues on the 'offers'. After the merge of https://github.com/openfun/richie/pull/2549 then we just need to fix the 'offers'.