Boost Azure Demo

Backend/db/migrations/006_assignment_level_feedback.sql

@@ -0,0 +1,53 @@
+-- +goose Up
+
+ALTER TABLE assignment_assignees
+    ADD COLUMN ai_feedback TEXT,
+    ADD COLUMN teacher_feedback TEXT;
+
+UPDATE assignment_assignees aa
+SET ai_feedback = aggregated.ai_feedback
+FROM (
+    SELECT
+        sa.assignment_id,
+        sa.student_id,
+        string_agg(
+            format('Question %s: %s', aq.position, btrim(sa.ai_feedback)),
+            E'\n\n'
+            ORDER BY aq.position ASC
+        ) AS ai_feedback
+    FROM student_answers sa
+    JOIN assignment_questions aq
+        ON aq.assignment_id = sa.assignment_id
+       AND aq.question_id = sa.question_id
+    WHERE NULLIF(btrim(sa.ai_feedback), '') IS NOT NULL
+    GROUP BY sa.assignment_id, sa.student_id
+) AS aggregated
+WHERE aa.assignment_id = aggregated.assignment_id
+  AND aa.student_id = aggregated.student_id;
+
+UPDATE assignment_assignees aa
+SET teacher_feedback = aggregated.teacher_feedback
+FROM (
+    SELECT
+        sa.assignment_id,
+        sa.student_id,
+        string_agg(
+            format('Question %s: %s', aq.position, btrim(sa.teacher_feedback)),
+            E'\n\n'
+            ORDER BY aq.position ASC
+        ) AS teacher_feedback
+    FROM student_answers sa
+    JOIN assignment_questions aq
+        ON aq.assignment_id = sa.assignment_id
+       AND aq.question_id = sa.question_id
+    WHERE NULLIF(btrim(sa.teacher_feedback), '') IS NOT NULL
+    GROUP BY sa.assignment_id, sa.student_id
+) AS aggregated
+WHERE aa.assignment_id = aggregated.assignment_id
+  AND aa.student_id = aggregated.student_id;
+
+-- +goose Down
+
+ALTER TABLE assignment_assignees
+    DROP COLUMN IF EXISTS teacher_feedback,
+    DROP COLUMN IF EXISTS ai_feedback;