public async Task <ResponseModel> UnlockContent(int currentContentNo, int levelNo, Guid traineeId)
{
int serialNumber = currentContentNo + 1;
/*
* is the content is allowed to be unlocked by this user?
* did the user finished the previous content/quiz? skip if the previous is 0
* insert new history entry
*/
Level currentLevel = await Db.Levels.FirstOrDefaultAsync(x => x.No == levelNo);
Content nextContent = await Db.Contents.FirstOrDefaultAsync(x => x.No == serialNumber && x.LevelId == currentLevel.Id);
ResponseModel response = await validationService.IsValidRequestAsync(nextContent.Id, traineeId);
if (response.IsSuccess)
{
if (currentContentNo > 0)
{
Content currentContent = await Db.Contents.FirstOrDefaultAsync(x => x.No == currentContentNo && x.LevelId == currentLevel.Id);
TraineeQuizHistory prevHistory = await
Db.TraineeQuizHistories.FirstOrDefaultAsync(
x => x.ContentId == currentContent.Id && x.TraineeId == traineeId);
if (!prevHistory.IsCompleted)
{
response = new ResponseModel(null, false, MessageContainer.PreviousContentIsUncompleted);
}
}
if (response.IsSuccess)
{
var history = new TraineeHistory()
{
ContentId = nextContent.Id,
TraineeId = traineeId,
LastAccessed = DateTime.Now,
Unlocked = DateTime.Now,
Point = 0,
};
Db.TraineeHistories.Add(history);
await Db.SaveChangesAsync();
response =
new ResponseModel(new TraineeHistory()
{
Id = history.Id,
ContentId = history.ContentId,
TraineeId = history.TraineeId
});
}
}
return(response);
}
public async Task <bool> IsUnlocked(Guid contentId, Guid traineeId)
{
TraineeHistory history = await Db.TraineeHistories.FirstOrDefaultAsync(x => x.ContentId == contentId && x.TraineeId == traineeId);
return(history != null);
}
