public WordList GetTodoWords(int num)
{
User user = User.GetUser();
List <Word> todoWordList = new List <Word>();
bool isLastWords;
if (user.current_time == 0)
{
List <Word> totalWordList = GetTotalWords();
Dictionary <string, Word> totalWordDic = new Dictionary <string, Word>();
foreach (var i in totalWordList)
{
totalWordDic.Add(i.word, i);
}
List <string> doneWords = User_WordDb.GetList(x => x.user_id == user.id).ConvertAll <string>(x => x.word);
foreach (var i in doneWords)
{
totalWordDic.Remove(i);
}
Word[] tempArr = new Word[totalWordDic.Count];
totalWordDic.Values.CopyTo(tempArr, 0);
todoWordList = new List <Word>(tempArr);
//todoWordList = Db.Queryable<User_Word, Word>((x, y) => new object[] { JoinType.Right, x.user_id == user.id && x.word == y.word }).Where((x, y) => x == null).Select((x, y) => y).ToList();
isLastWords = WordDb.AsSugarClient().Queryable <Word>().Count() - doneWords.Count <= num;
}
else
{
todoWordList = Db.Queryable <User_Word, Word>((x, y) => new object[] {
JoinType.Inner, x.user_id == user.id && x.learn_time <= user.current_time && x.word == y.word
}).Select((x, y) => y).ToList();
isLastWords = num + User_WordDb.Count(x => x.user_id == user.id && x.learn_time > user.current_time) >= WordDb.Count(x => true);
}
List <Word> wordList = new List <Word>();
if (!isLastWords)
{
Random rand = new Random();
while (wordList.Count < num)
{
int t = rand.Next(todoWordList.Count);
wordList.Add(todoWordList[t]);
todoWordList.RemoveAt(t);
}
}
else
{
wordList = todoWordList;
}
return(new WordList(wordList, isLastWords));
}
public int TotalWordNum()
{
return(WordDb.Count(x => true));
}