public void AddTemplateQuestion(TestTemplate template, Guid questionId)
{
var question = FetchQuestion(questionId);
if (question.IsInTestTemplate(template))
throw new BusinessRuleException("Question already exists in the test template");
else if (!question.Isvalid)
throw new BusinessRuleException("Question does not contain either at least 2 choices or 1 choice with answer");
else
question.AddToTemplate(template);
}
public TestInstance UpdateTestInstance(Guid instanceId, TestTemplate newTestTemplate, bool isPractice, int timeLimit)
{
var result = FetchTestInstance(instanceId);
if (!result.IsOpen)
{
throw new BusinessRuleException("Unable to update once Test Instance is Open.");
}
result.TestTemplate = newTestTemplate;
result.IsPractice = isPractice;
result.TimeLimit = timeLimit;
return result;
}
public void RemoveTemplateQuestion(TestTemplate template, Guid questionId)
{
var question = FetchQuestion(questionId);
if (question.IsInTestTemplate(template))
question.RemoveFromTemplate(template);
else
throw new RecordNotFoundException("Question does not exists in the template");
}
public List<Question> FetchQuestionsNotInTheTestTemplate(TestTemplate template)
{
return Questions.Where(q => !q.TestTemplates.Contains(template)).ToList();
}
public void AddToTemplate(TestTemplate template)
{
TestTemplates.Add(template);
}
public void RemoveFromTemplate(TestTemplate template)
{
TestTemplates.Remove(template);
}
public bool IsInTestTemplate(TestTemplate template)
{
return TestTemplates.FirstOrDefault(t => t.Id.Equals(template.Id)) != null ? true : false;
}
public void DeleteTestTemplate(Action action, TestTemplate template)
{
if (template.IsBeingUsedInTestInstance)
throw new BusinessRuleException("Unable to update Test Template because it is being used in a Test Instance");
action();
}
public TestTemplate CreateTestTemplate(string name)
{
try
{
return FetchTestTemplate(name);
throw new BusinessRuleException("Test Template name already exists");
}
catch (RecordNotFoundException)
{
var template = new TestTemplate(name);
TestTemplates.Add(template);
return template;
}
}
private void deleteTestTemplate(TestTemplate template)
{
template.Questions.Clear();
_context.TestTemplates.Remove(template);
}