Use the database for docs rendering

[charlesroelli]

This is steps 1-2 of #1630, i.e. database-backed load for documentation and its environment (globalcontext).

[pauloxnet]

Thanks for working on this PR.

If you think is still a draft please mark it as draft PR in the Github interface.

[pauloxnet]

Are this changes related to the PR?

[charlesroelli]

Yes. The document.metadata parents field doesn't correspond to the original JSON file's parents field, so apparently we have to adapt this part of the template to use the breadcrumbs property instead.

See e.g.

>>> import json
>>> doc
<Document: en/dev/releases/1.10.1>
>>> doc.metadata["parents"]
'releases'
>>> with doc.full_path.open() as doc_file:
...     json.load(doc_file)["parents"]
[{'link': '../', 'title': 'Release notes'}]
>>> doc.metadata["breadcrumbs"]
[{'path': 'releases', 'title': 'Release notes'}]

[pauloxnet]

Thanks for checking

[codecov-commenter]

⚠️ Please install the to ensure uploads and comments are reliably processed by Codecov.

Codecov Report

❌ Patch coverage is 82.66667% with 13 lines in your changes missing coverage. Please review.
⚠️ Please upload report for BASE (main@c7c0a47). Learn more about missing BASE report.

Files with missing lines	Patch %	Lines
.../migrations/0008_documentrelease_global_context.py	50.00%	7 Missing and 1 partial ⚠️
docs/management/commands/update_docs.py	0.00%	3 Missing ⚠️
docs/views.py	84.61%	2 Missing ⚠️
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Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2615   +/-   ##
=======================================
  Coverage        ?   86.21%           
=======================================
  Files           ?      185           
  Lines           ?     6760           
  Branches        ?      384           
=======================================
  Hits            ?     5828           
  Misses          ?      852           
  Partials        ?       80           

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[pauloxnet]

The PR seems good to me. When you are ready for a complete review, update a bit the PR description, squash commit and squash also the 2 migrations in one, and add test to cover the changes.