public static void RevertLastActivity()
{
using (var ctx = new EFExamples2Context())
{
var parcel = ctx.Parcels.First();
var lastActivity = parcel.Activities.OrderByDescending(x => x.Timestamp).First();
var previousActivity = parcel.Activities.OrderByDescending(x => x.Timestamp).Skip(1).First();
var typeOfTheLastActivity = lastActivity.GetType().Name;
switch (typeOfTheLastActivity)
{
case "SendActivity":
parcel.Werehouse = lastActivity.Werehouse;
parcel.DeliveryFee -= (lastActivity as SendActivity).AdditionaldDeliveryFee.Value;
break;
case "ReadyForSend":
// apply reready-for-send-specific actions
break;
case "Retrieve":
// apply send-specific delivery actions
break;
}
ctx.SaveChanges();
}
}
public static void ProcessedAndSentByCustoms()
{
using (var ctx = new EFExamples2Context())
{
var parcel = ctx.Parcels.First();
var customs = ctx.Werehouses.Single(x => x.Name == "Customs");
var kyiv = ctx.Werehouses.Single(x => x.City == "Kyiv");
var lastActivity = parcel.Activities.OrderByDescending(x => x.Timestamp).First();
var readyActivity = new ReadyForSendActivity()
{
Werehouse = customs,
Timestamp = lastActivity.Timestamp.AddDays(1),
};
var sendActivity = new SendActivity()
{
Werehouse = customs,
Timestamp = lastActivity.Timestamp.AddDays(1).AddHours(1),
SentToWerehouse = kyiv,
AdditionaldDeliveryFee = 4m,
};
parcel.Activities.Add(readyActivity);
parcel.Activities.Add(sendActivity);
parcel.Werehouse = null;
parcel.DeliveryFee += 4m;
ctx.SaveChanges();
}
}
public static void RetreivedByCustoms()
{
using (var ctx = new EFExamples2Context()) {
var parcel = ctx.Parcels.First();
var customs = ctx.Werehouses.Single(x => x.Name == "Customs");
var lastActivity = parcel.Activities.OrderByDescending(x => x.Timestamp).First();
var sentActivity = lastActivity as SendActivity;
if (sentActivity == null)
{
throw new NotImplementedException("Unable to retreive the parcell which was never sent");
}
if (sentActivity.SentToWerehouse != customs)
{
throw new NotImplementedException("parcel has been delivered to wrong werehouse!");
}
var retrieveActivity = new RetrieveActivity()
{
Werehouse = customs,
Timestamp = lastActivity.Timestamp.AddDays(1),
};
parcel.Werehouse = customs;
parcel.Activities.Add(retrieveActivity);
ctx.SaveChanges();
}
}
public static void ProcessedAndSentByCustoms()
{
using (var ctx = new EFExamples2Context())
{
var parcel = ctx.Parcels.Find(1);
var customs = ctx.Werehouses.Single(x => x.Name == "Customs");
var lastActivity = parcel.Activities.OrderByDescending(x => x.Timestamp).First();
var readyActivity = new ReadyForSendActivity()
{
Werehouse = customs,
Timestamp = lastActivity.Timestamp.AddDays(1),
};
var sendActivity = new SendActivity()
{
Werehouse = customs,
Timestamp = lastActivity.Timestamp.AddDays(1).AddHours(1),
};
var handlerFactory = new ActivityHandlersFactory();
handlerFactory.GetActivityHandler(readyActivity).Apply(parcel, readyActivity);
handlerFactory.GetActivityHandler(sendActivity).Apply(parcel, sendActivity);
ctx.SaveChanges();
}
}
public static void RevertLastActivity()
{
using (var ctx = new EFExamples2Context())
{
var parcel = ctx.Parcels.Find(1);
var lastActivity = parcel.Activities.OrderByDescending(x => x.Timestamp).First();
var handlerFactory = new ActivityHandlersFactory();
var handler = handlerFactory.GetActivityHandler(lastActivity);
handler.Revert(lastActivity);
ctx.SaveChanges();
}
}
public static void RetreivedByCustoms()
{
using (var ctx = new EFExamples2Context()) {
var parcel = ctx.Parcels.First();
var customs = ctx.Werehouses.Single(x => x.Name == "Customs");
var lastActivity = parcel.Activities.OrderByDescending(x => x.Timestamp).First();
var retrieveActivity = new RetrieveActivity()
{
Werehouse = customs,
Timestamp = lastActivity.Timestamp.AddDays(1),
};
var handlerFactory = new ActivityHandlersFactory();
handlerFactory.GetActivityHandler(retrieveActivity).Apply(parcel, retrieveActivity);
ctx.SaveChanges();
}
}
