datasette/template_contexts.py is now a thin index with no
documentation strings of its own - the docs live next to the code:
- Each page's Context class (DatabaseContext, QueryContext,
TableContext, RowContext) carries a docstring, its template name and
help metadata on view-added fields, in the view module itself
- extra_field() fields document themselves from the Extra classes
- The keys render_template() adds to every page are documented in
TEMPLATE_BASE_CONTEXT in app.py, next to the code that adds them,
with the contract tests keeping the two in sync
docs/template_context.rst is regenerated from the dataclasses, so the
table and row pages now include field types like the others.
Refs #2127
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
docs/template_context.rst is generated by cog from the manifest in
datasette/template_contexts.py, following the json_api_doc.py pattern.
It documents the base context available on every page plus the
database, query, table and row pages, including the stability policy
for custom template authors.
Refs #2127
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
