//TODO: удалить метод после конвертации
public bool Convert()
{
bool result = false;
Adapter.ActionByContext(c => {
var newHashes = new HashSet <string>();
List <UserKnowledge> userKnowledges =
c.UserKnowledge.Where(e => e.Hash != null && e.UserId == _userId && e.LanguageId == _languageId).
ToList();
foreach (UserKnowledge userKnowledge in userKnowledges)
{
var item = new UserKnowledgeItem(userKnowledge);
userKnowledge.Hash = GetUniqueHash(item);
newHashes.Add(userKnowledge.Hash);
}
c.SaveChanges();
List <UserKnowledge> afterSaveKnowledges =
c.UserKnowledge.Where(e => e.Hash != null && e.UserId == _userId && e.LanguageId == _languageId).
ToList();
result = userKnowledges.Count == afterSaveKnowledges.Count &&
afterSaveKnowledges.All(e => newHashes.Contains(e.Hash));
});
return(result);
}
private Tuple <KnowledgeAddStatus, UserKnowledge> ConvertItemToEntity(string hash,
UserKnowledgeItem knowledgeItem,
StudyLanguageContext c)
{
if (IsInvalid(knowledgeItem))
{
LoggerWrapper.LogTo(LoggerName.Errors).ErrorFormat(
"UserKnowledgeQuery.Add переданы некорректные данные пользователю. Идентификатор пользователя {0}, идентификатор языка {1}, новый пункт знаний {2}",
_userId, _languageId, KnowledgeToLogString(knowledgeItem));
return(new Tuple <KnowledgeAddStatus, UserKnowledge>(KnowledgeAddStatus.Error, null));
}
UserKnowledge userKnowledge = c.UserKnowledge.FirstOrDefault(e => e.Hash == hash);
if (userKnowledge != null)
{
if (GetDefaultDeletedDate() == userKnowledge.DeletedDate)
{
return(new Tuple <KnowledgeAddStatus, UserKnowledge>(KnowledgeAddStatus.AlreadyExists, userKnowledge));
}
userKnowledge.CreationDate = DateTime.Now;
userKnowledge.DeletedDate = GetDefaultDeletedDate();
}
else
{
userKnowledge = AddKnowledge(knowledgeItem, c);
}
return(new Tuple <KnowledgeAddStatus, UserKnowledge>(KnowledgeAddStatus.Ok, userKnowledge));
}
private static string KnowledgeToLogString(UserKnowledgeItem knowledgeItem)
{
return(knowledgeItem != null
? string.Format("dataId={0}, dataType={1}, data={2}, tip={3}",
knowledgeItem.DataId, knowledgeItem.DataType, knowledgeItem.Data,
knowledgeItem.Tip)
: "<NULL>");
}
private string GetUniqueHash(UserKnowledgeItem knowledgeItem)
{
const string SEPARATOR = "_";
string data = _userId.ToString(CultureInfo.InvariantCulture) + SEPARATOR
+ _languageId.ToString(CultureInfo.InvariantCulture)
+ SEPARATOR + (knowledgeItem.Data ?? "<NULL>")
+ SEPARATOR + knowledgeItem.DataId.ToString(CultureInfo.InvariantCulture) + SEPARATOR
+ ((int)knowledgeItem.DataType).ToString(CultureInfo.InvariantCulture);
var md5Helper = new Md5Helper();
return(md5Helper.GetHash(data, 1));
}
private UserKnowledge AddKnowledge(UserKnowledgeItem knowledgeItem, StudyLanguageContext c)
{
var userKnowledge = new UserKnowledge {
UserId = _userId,
LanguageId = _languageId,
Data = knowledgeItem.Data,
DataId = knowledgeItem.DataId,
DataType = (int)knowledgeItem.DataType,
Tip = knowledgeItem.Tip,
Status = (byte)KnowledgeStatus.New,
CreationDate = DateTime.Now,
DeletedDate = GetDefaultDeletedDate(),
SystemData = knowledgeItem.SystemData,
Hash = GetUniqueHash(knowledgeItem)
};
c.UserKnowledge.Add(userKnowledge);
return(userKnowledge);
}
public JsonResult Add(long userId, UserKnowledgeItem knowledgeItem)
{
return(AddMany(userId, new List <UserKnowledgeItem> {
knowledgeItem
}));
}
public bool IsInvalid(UserKnowledgeItem knowledgeItem)
{
return(IdValidator.IsInvalid(_userId) || IdValidator.IsInvalid(_languageId) || knowledgeItem == null ||
IdValidator.IsInvalid(knowledgeItem.DataId) ||
EnumValidator.IsInvalid(knowledgeItem.DataType));
}
