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exercise_has_answer_files

headless_lms_models::exercise_task_submission_files

Function exercise_has_answer_files 

Source 
pub async fn exercise_has_answer_files(
    conn: &mut PgConnection,
    exercise_id: Uuid,
) -> ModelResult<bool>
Expand description

Whether the exercise has at least one file-typed answer whose files still exist.

Matches the rows get_answer_files_by_exercise_id would return, without reading them: the caller only decides whether to offer the bulk download.