private async Task <Word> GetWordByFlashcardWord(FlashcardWord flashcardWord)
{
var query = new StoreIndexQuery <string>
{
Storename = DbConstants.StoreName,
IndexName = DbConstants.Chinese,
QueryValue = flashcardWord.Chinese
};
return(await DbManager.GetRecordByIndex <string, Word>(query));
}
public async Task MoveFlashcard(FlashcardWord flashcardWord, int group)
{
StoreRecord <FlashcardWord> record;
flashcardWord.Day = group;
flashcardWord.LastTrainDate = DateTime.Now.Ticks;
record = new StoreRecord <FlashcardWord>
{
Storename = DbConstants.FlashcardsStoreName,
Data = flashcardWord
};
await DbManager.UpdateRecord(record);
}
private async Task <Word> GetRandomWordByGroup(int group)
{
var query = new StoreIndexQuery <int>
{
Storename = DbConstants.FlashcardsStoreName,
IndexName = DbConstants.Day,
QueryValue = group
};
var flashcardWords = await DbManager.GetAllRecordsByIndex <int, FlashcardWord>(query);
FlashcardWord flashcardWord = flashcardWords[rand.Next(flashcardWords.Count)];
return(await GetWordByFlashcardWord(flashcardWord));
}
public async Task <string> NextTrainDate(Word word)
{
FlashcardWord flashcardWord = await GetFlashcardWordByWord(word);
DateTime lastTrainDate = new DateTime(flashcardWord.LastTrainDate);
TimeSpan groupDays = new TimeSpan(flashcardWord.Day, 0, 0, 0);
DateTime nextTrainDate = lastTrainDate.Add(groupDays);
if (nextTrainDate > DateTime.Now)
{
return(lastTrainDate.Add(groupDays).ToLongDateString());
}
else
{
return(ContentConstants.MessageWordCanTrain);
}
}
