private static ItemType GetOrAdd(string caption, string uniqueKey, bool registerIfNoFound)
{
return(ItemTypes.GetOrAdd(uniqueKey, k =>
{
using (var db = new Db.DataContext())
using (var scope = db.CreateScope(TransactionScopeOption.Suppress))
{
var r = db.ItemType.Where(x => x.UniqueKey == uniqueKey).FirstOrDefault();
if (r == null && registerIfNoFound)
{
var r_ = new ItemType()
{
NameItemType = caption, UniqueKey = uniqueKey
};
db.ItemType.Add(r_);
db.SaveChanges();
r = r_;
}
if (r != null && r.NameItemType != caption)
{
r.NameItemType = caption;
db.SaveChanges();
}
ItemTypes[uniqueKey] = r;
return r;
}
}));
//var r = ItemTypes.Where(x => x.Value.UniqueKey == uniqueKey).Select(x => x.Value).FirstOrDefault();
//if (r == null)
//{
// using (var db = new Db.DataContext())
// using (var scope = db.CreateScope(TransactionScopeOption.Suppress))
// {
// r = db.ItemType.Where(x => x.UniqueKey == uniqueKey).FirstOrDefault();
// if (r == null && registerIfNoFound)
// {
// var r_ = new ItemType() { NameItemType = caption, UniqueKey = uniqueKey };
// db.ItemType.Add(r_);
// db.SaveChanges();
// r = r_;
// }
// if (r != null && r.NameItemType != caption)
// {
// r.NameItemType = caption;
// db.SaveChanges();
// }
// ItemTypes[uniqueKey] = r;
// }
//}
//return r;
}
private static Tuple <DateTime, ConcurrentDictionary <string, ItemType> > ItemsTypesProvide()
{
try
{
var types = new ConcurrentDictionary <string, ItemType>();
using (var db = new Db.DataContext())
{
db.ItemType.Where(x => !string.IsNullOrEmpty(x.UniqueKey)).ForEach(x => types[x.UniqueKey] = x);
}
var expires = DateTime.Now.AddMinutes(2);
//Debug.WriteLineNoLog("ItemTypeFactory: generate new cache with {0} types, expires at {1}", types.Count, expires.ToString("yyyy-MM-dd HH:mm:ss"));
return(new Tuple <DateTime, ConcurrentDictionary <string, ItemType> >(DateTime.Now.AddMinutes(2), types));
}
catch
{
return(new Tuple <DateTime, ConcurrentDictionary <string, ItemType> >(DateTime.Now, new ConcurrentDictionary <string, ItemType>()));
}
}
/// <summary>
/// Возвращает тип объектов для идентификатора <paramref name="type"/>.
/// </summary>
/// <param name="type">Идентификатор, для которого следует получить тип объектов.</param>
public static ItemType GetItemType(int type)
{
if (type <= 0)
{
return(NotFound);
}
var _r = ItemTypes.Where(x => x.Value.IdItemType == type).Select(x => x.Value).FirstOrDefault();
if (_r == null)
{
using (var db = new Db.DataContext())
using (var scope = db.CreateScope(TransactionScopeOption.Suppress))
_r = db.ItemType.Where(x => x.IdItemType == type).FirstOrDefault();
}
if (_r != null)
{
return(_r);
}
return(NotFound);
}
