/// <summary>
/// Случайно генерирует начальную популяцию. Количество особей равно сумме диапазона всех параметров * на мощность
/// </summary>
/// <param name="selection"></param>
/// <param name="multiplier">Мощность</param>
/// <returns></returns>
public static List<InstanceModel> CreateFirstGeneration(SelectionModel selection, int multiplier = 1)
{
List<InstanceModel> res = new List<InstanceModel>();
List<ParamSelection> integralParams = selection.SelectionParams.Where(p => p.ValueMin.IsIntegral() && (dynamic)p.ValueMax > (dynamic)p.ValueMin).ToList();
List<ParamEntity> otherParams = selection.SelectionParams.Where(p => !p.ValueMin.IsIntegral()).Select(p => {
var param = new ParamEntity { FieldValue = p.ValueMin };
param.CopyObject(p);
return param;
}
).ToList();
//заполняеем всеми возможными значениями
var fieldResults = integralParams.AsParallel()
.Select(p => new KeyValuePair<string, IEnumerable<int>>(p.FieldName, (IEnumerable<int>)Enumerable.Range(0, (dynamic)p.ValueMax - (dynamic)p.ValueMin + 1)));
foreach (KeyValuePair<string, IEnumerable<int>> pair in fieldResults)
{
for (int j = 0; j < multiplier; j++)
{
foreach (int i in pair.Value)
{
InstanceModel newInstance = new InstanceModel();
newInstance.CopyObject(selection);
newInstance.SelectionId = selection.Id;
newInstance.StrategyParams.AddRange(otherParams);
foreach (ParamSelection paramSelection in integralParams)
{
ParamEntity newParam = new ParamEntity();
newParam.CopyObject(paramSelection);
if (paramSelection.FieldName == pair.Key)
{
// Сохраним у значения исходный тип
newParam.FieldValue = Convert.ChangeType((dynamic)paramSelection.ValueMin + i, Type.GetType(paramSelection.TypeName));
}
else
{
Random rnd = new Random();
newParam.FieldValue = Convert.ChangeType(rnd.Next(paramSelection.ValueMin.ToIntSave(), paramSelection.ValueMax.ToIntSave()), Type.GetType(paramSelection.TypeName));
}
newInstance.StrategyParams.Add(newParam);
}
res.Add(newInstance);
}
}
}
return res;
}
public ActionResult Edit(InstanceModel instance, IEnumerable<ParamEntity> strategyParams)
{
instance.StrategyParams = strategyParams.ToList();
if (ModelState.IsValid)
{
//Сохранение
instanceService.Save(instance);
TempData["message"] = String.Format("Сохранены изменения в экземпляре: {0}", instance.Name);
return RedirectToAction("Index");
}
else
{
return _Edit(instance);
}
}
public ActionResult Edit(int instanceId = 0)
{
InitializeLists();
InstanceModel model = null;
if (instanceId != 0)
{
model = instanceService.GetById(instanceId, true);
if (model == null)
{
TempData["error"] = String.Format("Экземпляр стратегии \"{0}\" не найден!", instanceId);
return RedirectToAction("Index");
}
}
else
model = new InstanceModel();
return View("Edit", model);
}
private void LoadNavigationProperties(InstanceModel model)
{
if (model.StrategyInfo == null && model.StrategyInfoId != 0)
model.StrategyInfo = strategyInfoRepository.GetById(model.StrategyInfoId);
if (model.Ticker == null && model.TickerId != 0)
model.Ticker = tickerRepository.GetById(model.TickerId);
if (model.TimeFrame == null && model.TimeFrameId != 0)
model.TimeFrame = timeFrameRepository.GetById(model.TimeFrameId);
//if (model.Selection == null && model.SelectionId.HasValue)
// model.Selection = selectionService.GetById(model.SelectionId.Value);
}
/// <summary>
/// Редактирование стратегии
/// </summary>
/// <param name="instanceId">Если 0 - создание нвого варианта</param>
/// <returns></returns>
private ActionResult _Edit(InstanceModel model)
{
InitializeLists();
LoadNavigationProperties(model);
model.StrategyParams = StrategyHelper.GetEntityParams(model.StrategyInfo, model.StrategyParams).ToList();
return View("Edit", model);
}
public ActionResult Details(int instanceId)
{
InstanceModel model = new InstanceModel();
if (instanceId != 0)
{
model = instanceService.GetById(instanceId, true);
if (model == null)
{
TempData["error"] = String.Format("Экземпляр стратегии \"{0}\" не найден!", instanceId);
return RedirectToAction("Index");
}
}
return View(model);
}