feat(tests): общие тесты с автором, в истории только результаты ученика (для всех ролей)

Made-with: Cursor

backend/prisma/migrations/20260402180000_tests_shared_author_student_results/migration.sql

@@ -0,0 +1,26 @@
+-- Общие тесты в контексте пары: studentId = id назначенного ученика; authorId = кто создал.
+-- Результаты (TestResult) привязаны к ученику (studentId).
+
+ALTER TABLE "Test" ADD COLUMN "authorId" INTEGER;
+
+UPDATE "Test" SET "authorId" = "studentId";
+
+UPDATE "Test" AS t
+SET "studentId" = ta."studentId"
+FROM "TutorAssignment" AS ta
+WHERE t."authorId" = ta."tutorId";
+
+ALTER TABLE "Test" ALTER COLUMN "authorId" SET NOT NULL;
+
+ALTER TABLE "Test" ADD CONSTRAINT "Test_authorId_fkey" FOREIGN KEY ("authorId") REFERENCES "User"("id") ON DELETE CASCADE ON UPDATE CASCADE;
+
+ALTER TABLE "TestResult" ADD COLUMN "studentId" INTEGER;
+
+UPDATE "TestResult" AS tr
+SET "studentId" = t."studentId"
+FROM "Test" AS t
+WHERE tr."testId" = t."id";
+
+ALTER TABLE "TestResult" ALTER COLUMN "studentId" SET NOT NULL;
+
+ALTER TABLE "TestResult" ADD CONSTRAINT "TestResult_studentId_fkey" FOREIGN KEY ("studentId") REFERENCES "User"("id") ON DELETE CASCADE ON UPDATE CASCADE;