public static List <Question> GetAllQuestionsWithoutAnswers(DBConnection connection)
{
SqlCommand command = connection.GetCommand(QuestionTable.SQL_SELECT_ALL_QUESTIONS_NO_ANSWERS);
using (SqlDataReader reader = command.ExecuteReader())
{
List <Question> questions = new List <Question>();
while (reader.Read())
{
questions.Add(QuestionTable.ReadQuestion(reader));
}
return(questions);
}
}
public static Question GetQuestionById(DBConnection connection, int questionId)
{
SqlCommand command = connection.GetCommand(QuestionTable.SQL_SELECT_QUESTION_BY_ID);
command.AddParameter("@questionId", SqlDbType.Int, questionId);
try
{
Question question = null;
using (SqlDataReader reader = command.ExecuteReader())
{
while (reader.Read())
{
if (question == null)
{
question = QuestionTable.ReadQuestion(reader);
}
QuestionAnswer answer = new QuestionAnswer(question.Id, reader.GetColumnValue <int>("index"), reader.GetColumnValue <string>("qa_text"), reader.GetColumnValue <bool>("correct"));
question.AddAnswer(answer);
}
}
if (question == null)
{
throw new DatabaseException("Question does not exist");
}
return(question);
}
catch (Exception e)
{
throw new DatabaseException(e.Message);
}
}
public static Question InsertQuestion(DBConnection connection, User creator, string text, string type, List <QuestionAnswer> answers)
{
return(QuestionTable.InsertQuestion(connection, creator.Id, text, type, answers));
}
public Question GetQuestion(DBConnection connection)
{
return(QuestionTable.GetQuestionById(connection, this.QuestionId));
}