project done, not tested

Flashcards.Dreamfxx/Flashcards.Dreamfxx/Data/DatabaseManager.cs

@@ -50,7 +50,7 @@ public List<Stack> GetStacks()
             Console.ReadKey();
             return null;
         }
-        return stacks;
+        return new();
     }
 
     public List<Flashcard> GetCards()
@@ -77,7 +77,7 @@ public List<Flashcard> GetCards()
         if (cards.Count == 0)
         {
             AnsiConsole.MarkupLine("No cards found");
-            return null;
+            return new();
         }
         return cards;
     }
@@ -199,14 +199,14 @@ public StackDto GetStackDtos(int stackId)
         var stackDetails = new StackDto
         {
             StackName = null,
-            FlashcardsDto = new List<Flashcard>() // Change the type to FlashcardDto
+            FlashcardsDto = new() // Change the type to FlashcardDto
         };
 
         var query = $@"
                 SELECT 
                     Stacks.Name,
                     Cards.Id,
-                    Cards.Question, 
+                    Cards.Question,
                     Cards.Answer
                 FROM Stacks
                 JOIN Cards ON Stacks.Id = Cards.StackId
@@ -448,6 +448,8 @@ FOREIGN KEY (StackId) REFERENCES Stacks(Id) ON DELETE CASCADE
                     )
                 END
             ";
+
+        ExecuteNonQuery(query);
         SeedData();
     }
 

Flashcards.Dreamfxx/Flashcards.Dreamfxx/Dtos/SessionPivotDto.cs

@@ -2,7 +2,7 @@
 public class SessionPivotDto
 {
     public int Id { get; set; }
-    public required string StackName { get; set; }
+    public string? StackName { get; set; }
     public int? January { get; set; }
     public int? February { get; set; }
     public int? March { get; set; }

Flashcards.Dreamfxx/Flashcards.Dreamfxx/Dtos/StackDto.cs

@@ -1,8 +1,7 @@
-using Flashcards.Dreamfxx.Models;
-namespace Flashcards.Dreamfxx.Dtos;
+namespace Flashcards.Dreamfxx.Dtos;
 
 public class StackDto
 {
     public string? StackName { get; set; }
-    public List<Flashcard>? FlashcardsDto { get; set; }
+    public List<FlashcardDto>? FlashcardsDto { get; set; }
 }

Flashcards.Dreamfxx/Flashcards.Dreamfxx/Models/Session.cs

@@ -7,9 +7,9 @@ public class Session
 
     [ForeignKey("Stack")]
     public int StackId { get; set; }
-    public List<Flashcard> Cards { get; set; }
+    public List<Flashcard>? Flashcards { get; set; }
     public DateTime EndTime { get; set; }
     public int CorrectAnswers { get; set; }
     public int WrongAnswers { get; set; }
-    public Stack Stack { get; set; }
+    public Stack? Stack { get; set; }
 }