/// <summary>
/// Gets the most recent shown survey, can be active/completed, or null if none was found
/// </summary>
/// <param name="tid">The user to whom the survey was shown</param>
/// <returns></returns>
public static async Task <Survey?> GetMostRecent(long tid)
{
using (var db = new MessagingDb())
{
var ss = await(from survs in db.Surveys.Include(x => x.Questions) //.ThenInclude(y => y.FieldType)
where tid == survs.TelegramUserId
select survs).OrderByDescending(x => x.TelegramMessageId).OrderByDescending(x => x.Id).FirstOrDefaultAsync();
if (ss != null)
{
ss.Questions = ss.Questions.OrderBy(x => x.Id).ToList();
}
return(ss);
}
}
/// <summary>
/// Retrieves the most recent Active and not Completed survey or null if there is not
/// </summary>
/// <returns></returns>
public static async Task <Survey?> GetCurrentSurvey(long telegramUserId)
{
using (var db = new MessagingDb())
{
var ss = await(from survs in db.Surveys.Include(x => x.Questions) //.ThenInclude(y => y.FieldType)
where survs.IsActive && survs.IsCompleted == false && survs.IsCancelled == false &&
survs.LastInteractionUtc.AddSeconds(SURVEY_EXPIRES_AFTER_SECONDS) > DateTime.UtcNow &&
telegramUserId == survs.TelegramUserId
select survs).OrderByDescending(x => x.TelegramMessageId).OrderByDescending(x => x.Id).FirstOrDefaultAsync();
if (ss != null)
{
ss.Questions = ss.Questions.OrderBy(x => x.Id).ToList();
}
return(ss);
}
}
/// <summary>
/// Retrieves the Survey through the answer id
/// </summary>
/// <returns></returns>
public static async Task <Survey?> GetSurveyByQuestionId(int questionId)
{
using (var db = new MessagingDb())
{
var ss = await(from survs in db.Surveys.Include(x => x.Questions) //.ThenInclude(y => y.FieldType)
join quests in db.Questions on survs.Id equals quests.SurveyId
where quests.Id == questionId
select survs).OrderByDescending(x => x.TelegramMessageId).OrderByDescending(x => x.Id).FirstOrDefaultAsync();
if (ss != null)
{
ss.Questions = ss.Questions.OrderBy(x => x.Id).ToList();
}
return(ss);
}
}
/// <summary>
/// Adds a survey to the DB
/// </summary>
/// <param name="telegramMessageId"></param>
/// <param name="userId"></param>
/// <returns></returns>
public static async Task <Survey?> AddSurvey(int?telegramMessageId, long userId)
{
using (var db = new MessagingDb())
{
var survey = new Survey()
{
CreatedUtc = DateTime.UtcNow,
IsActive = true,
IsCancelled = false,
IsCompleted = false,
TelegramMessageId = telegramMessageId,
TelegramUserId = userId
};
db.Surveys.Add(survey);
await db.SaveChangesAsync();
return(survey);
}
}
public static async Task <FieldType?> CreateOrGet(string name)
{
using (var db = new MessagingDb())
{
var ft = new FieldType()
{
Name = name
};
try
{
db.FieldTypes.Add(ft);
await db.SaveChangesAsync();
}
catch (Exception)
{
ft = await(from fts in db.FieldTypes where fts.Name == name select fts).SingleOrDefaultAsync();
}
return(ft);
}
}
/// <summary>
/// Updates this survey to the DB
/// </summary>
/// <param name="updateQuestions">Whether the answers should be updated</param>
/// <returns></returns>
public async Task UpdateSurvey(bool updateQuestions)
{
using (var db = new MessagingDb())
{
db.Entry(this).State = EntityState.Modified;
LastInteractionUtc = DateTime.UtcNow;
if (updateQuestions)
{
Questions.ForEach(q =>
{
db.Attach(q);
var entry = db.Entry(q);
if (entry.State != EntityState.Added)
{
entry.State = EntityState.Modified;
}
});
}
await db.SaveChangesAsync();
}
}
