重构试卷相关内容

Entities/Contracts/Question.cs

@@ -29,6 +29,9 @@ namespace Entities.Contracts
 		[MaxLength(65535)]
 		public string CorrectAnswer { get; set; }
 
+		[Column("question_group_id")]
+		public Guid? QuestionGroupId { get; set; }
+
 		[Column("difficulty_level")]
 		[MaxLength(10)] 
 		public DifficultyLevel DifficultyLevel { get; set; } 
@@ -36,6 +39,9 @@ namespace Entities.Contracts
 		[Column("subject_area")]
 		public SubjectAreaEnum SubjectArea { get; set; }
 
+		[Column("options")]
+		public string? Options { get; set; }
+
 		[Required]
 		[Column("created_by")]
 		[ForeignKey("Creator")]
@@ -55,6 +61,7 @@ namespace Entities.Contracts
 
 		// Navigation Properties
 		public User Creator { get; set; }
+		public QuestionGroup QuestionGroup { get; set; }
 		public ICollection<AssignmentQuestion> AssignmentQuestions { get; set; }
 
 		public Question()