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CodeTailor: let a question opt out of personalization by label suffix (-ct-static) #1616

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Merged
bnmnetp merged 1 commit into from
Oct 16, 2026
Merged

CodeTailor: let a question opt out of personalization by label suffix (-ct-static) #1616

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20 changes: 18 additions & 2 deletions bases/rsptx/book_server_api/routers/coach.py
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Original file line number Diff line number Diff line change
Expand Up @@ -62,6 +62,18 @@
tags=["coach"],
)

# Questions whose label ends with this suffix always get the instructor's
# backup Parsons problem, never a personalized one, whatever their
# data-parsons-personalized says. PreTeXt's @codetailor can only ask for
# personalization, so this lets a PreTeXt book pair a personalized and a
# non-personalized copy of an exercise in an A/B <select>. Added for a
# CodeTailor study in Fall 2026; it can be removed once that study ends.
STATIC_ARM_SUFFIX = "-ct-static"


def _is_static_arm(problem_id):
return bool(problem_id) and problem_id.endswith(STATIC_ARM_SUFFIX)


@router.post("/python_check")
async def python_check(request: Request):
Expand Down Expand Up @@ -532,7 +544,9 @@ async def parsons_scaffolding(
parsonsexample = data.get("parsonsexample")
problem_description = data.get("problem_description")
internal_test_case = data.get("internal_test_case")
parsons_personalized = data.get("parsons_personalized", True)
parsons_personalized = data.get(
"parsons_personalized", True
) and not _is_static_arm(problem_id)

adaptive_attr = 'data-adaptive="true"'
no_indent_attr = 'data-noindent="false"'
Expand Down Expand Up @@ -665,7 +679,9 @@ async def parsons_scaffolding(
personalization_level = data.get("personalization_level")
parsonsexample = data.get("parsonsexample")
problem_description = data.get("problem_description")
parsons_personalized = data.get("parsons_personalized", True)
parsons_personalized = data.get(
"parsons_personalized", True
) and not _is_static_arm(problem_id)

if not problem_id:
return JSONResponse(
Expand Down
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