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General: Fix counting of participating students in exercise #11624

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General: Fix counting of participating students in exercise #11624

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9fb2759
fix data base query
vivienxr Nov 11, 2025
98da534
add test
vivienxr Nov 17, 2025
b0671d1
change test
vivienxr Nov 18, 2025
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4 changes: 2 additions & 2 deletions src/main/java/de/tum/cit/aet/artemis/exercise/repository/ExerciseRepository.java
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Expand Up @@ -463,13 +463,13 @@ AND TYPE(e) <> de.tum.cit.aet.artemis.quiz.domain.QuizExercise
* Fetches the number of student participations in the given exercise
*
* @param exerciseId the id of the exercise to get the amount for
* @return The number of participations as <code>Long</code>
* @return The number of student participations as <code>Long</code>
*/
@Query("""
SELECT COUNT(DISTINCT p.student.id)
FROM Exercise e
JOIN e.studentParticipations p
WHERE e.id = :exerciseId
WHERE e.id = :exerciseId AND e.course.studentGroupName MEMBER OF p.student.groups
""")
Long getStudentParticipationCountById(@Param("exerciseId") Long exerciseId);

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