deletions update

SurveyLib.Infrastructure.EFCore/Repositories/AnswerRepository.cs

@@ -36,9 +36,15 @@ public class AnswerRepository : IAnswerRepository
         await _context.SaveChangesAsync();
     }
 
-    public async Task DeleteAsync(Answer entity)
+    public async Task DeleteAsync(int id)
     {
-        _context.Answers.Remove(entity);
+        throw new NotImplementedException();
+    }
+
+    public async Task DeleteAsync(int questionId, int completionId)
+    {
+        await _context.Answers.Where(a => a.QuestionId == questionId && a.CompletionId == completionId)
+            .ExecuteDeleteAsync();
         await _context.SaveChangesAsync();
     }
 }