I am attempting to add some entities that I have created. When I try and add the entity in question to the set (see code below) I get the following error:
"The object could not be added or attached because its EntityReference has an EntityKey property value that does not match the EntityKey for this object."
I can't tell what entitykey it's referring to though. Here is the code, there is probably a much better way to pull this off as well:
public Internship CreateInternship(Internship internshipToCreate)
{
try
{
Contact contactToCreate = new Contact();
contactToCreate.Fax = internshipToCreate.contacts.Fax;
contactToCreate.Extension = internshipToCreate.contacts.Extension;
contactToCreate.FirstName = internshipToCreate.contacts.FirstName;
contactToCreate.MiddleName = internshipToCreate.contacts.MiddleName;
contactToCreate.LastName = internshipToCreate.contacts.LastName;
contactToCreate.PhoneNumber = internshipToCreate.contacts.PhoneNumber;
contactToCreate.StreetAddress = internshipToCreate.contacts.StreetAddress;
contactToCreate.PostalCode = internshipToCreate.contacts.PostalCode;
contactToCreate.ContactEmail = internshipToCreate.contacts.ContactEmail;
contactToCreate.statesReference.EntityKey =
new EntityKey("InternshipEntities.StateSet", "ID", internshipToCreate.contacts.states.ID);
contactToCreate.countriesReference.EntityKey =
new EntityKey("InternshipEntities.CountrySet", "ID", internshipToCreate.contacts.countries.ID);
_internshipEntities.AddToContactSet(contactToCreate);
_internshipEntities.SaveChanges();
try
{
Availability availabilityToCreate = new Availability();
availabilityToCreate.StartDate = internshipToCreate.availability.StartDate;
availabilityToCreate.EndDate = internshipToCreate.availability.EndDate;
availabilityToCreate.Negotiable = internshipToCreate.availability.Negotiable;
_internshipEntities.AddToAvailabilitySet(availabilityToCreate);
_internshipEntities.SaveChanges();
try
{
internshipToCreate.contactsReference.EntityKey =
new EntityKey("InternshipEntities.ContactSet", "ID", contactToCreate.ID);
internshipToCreate.availabilityReference.EntityKey =
new EntityKey("InternshipEntities.AvailabilitySet", "ID", availabilityToCreate.ID);
internshipToCreate.classificationsReference.EntityKey =
new EntityKey("InternshipEntities.ClassificationSet", "ID", internshipToCreate.classifications.ID);
internshipToCreate.educationReference.EntityKey =
new EntityKey("InternshipEntities.EducationSet", "ID", internshipToCreate.education.ID);
_internshipEntities.AddToInternshipSet(internshipToCreate); //exception here
_internshipEntities.SaveChanges();
return internshipToCreate;
}
catch(Exception e)
{
throw e;
}
}
catch(Exception e)
{
throw e;
}
}
catch(Exception e)
{
throw e;
}
}
There is no other information given besides the error when I trace through so I'm not even sure which Key is the issue.
EDIT: Here is the version that ended up working:
using (TransactionScope scope = new TransactionScope())
{
try
{
Contact contactToCreate = new Contact();
Availability availabilityToCreate = new Availability();
Internship i = new Internship();
// Set the contact entity values;
contactToCreate.Fax = internshipToCreate.contacts.Fax;
//...
//ommited for brevity
//...
contactToCreate.ContactEmail = internshipToCreate.contacts.ContactEmail;
// Set the contact entity references to existing tables
contactToCreate.statesReference.EntityKey =
new EntityKey("InternshipEntities.StateSet", "ID", internshipToCreate.contacts.states.ID);
contactToCreate.countriesReference.EntityKey =
new EntityKey("InternshipEntities.CountrySet", "ID", internshipToCreate.contacts.countries.ID);
// Add contact
_internshipEntities.AddToContactSet(contactToCreate);
// Set the availability entity values;
availabilityToCreate.StartDate = internshipToCreate.availability.StartDate;
availabilityToCreate.EndDate = internshipToCreate.availability.EndDate;
availabilityToCreate.Negotiable = internshipToCreate.availability.Negotiable;
// Add availability
_internshipEntities.AddToAvailabilitySet(availabilityToCreate);
//Add contact and availability entities to new internship entity
i.contacts = contactToCreate;
i.availability = availabilityToCreate;
// Set internship entity values;
i.UserID = internshipToCreate.UserID;
//...
//ommited for brevity
//...
i.Created = DateTime.Now;
// Set the internship entity references to existing tables
i.classificationsReference.EntityKey =
new EntityKey("InternshipEntities.ClassificationSet", "ID", internshipToCreate.classifications.ID);
i.educationReference.EntityKey =
new EntityKey("InternshipEntities.EducationSet", "ID", internshipToCreate.education.ID);
// Add internship and save
_internshipEntities.AddToInternshipSet(i);
_internshipEntities.SaveChanges();
//commit transaction
scope.Complete();
return internshipToCreate;
}
catch (Exception e)
{
throw e;
}
}
Hallo,
although I'm not sure what the problem is I have a suggestion. The Internship object that you are passing into method (internshipToCreate) is used to transfer values to other entities (Contact, Availability) that you instantiated inside of the method, and their creation works just fine.
Maybe you should try to do the same with Internship? Create new Internship object and set all values you have by taking them from internshipToCreate object, and than that newly created object pass to the _internshipEntities.AddToInternshipSet method.
It is possible that you've set some values on internshipToCreate object that you needed for other purposes, and that some of those is actually causing the exception.
And, I don't know what you business logic is, but it would be better if you put all under one transaction, because like this it may happen that first two entities are created, and third one not.
This code isn't making a lot of sense to me. In two cases, you're going through an EntityKey when you could just assign an object reference. I.e, change this:
internshipToCreate.contactsReference.EntityKey =
new EntityKey("InternshipEntities.ContactSet", "ID", contactToCreate.ID);
internshipToCreate.availabilityReference.EntityKey =
new EntityKey("InternshipEntities.AvailabilitySet", "ID", availabilityToCreate.ID);
...to:
internshipToCreate.contacts = contactToCreate;
internshipToCreate.availability = availabilityToCreate;
In the other two cases you seem to be attempting to assign the ID of the object which is already there. These two lines, even if successful, it seems to me, would do nothing:
internshipToCreate.classificationsReference.EntityKey =
new EntityKey("InternshipEntities.ClassificationSet", "ID", internshipToCreate.classifications.ID);
internshipToCreate.educationReference.EntityKey =
new EntityKey("InternshipEntities.EducationSet", "ID", internshipToCreate.education.ID);
So you can just get rid of them.
What happens when you make these two changes?
Related
I have an object with several really large string properties. In addition, it has a simple timestamp property.
What I trying to achieve is to update only timestamp property without getting the whole huge object to the server.
Eventually, I would like to use EF and to do in the most performant way something equivalent to this:
update [...]
set [...] = [...]
where [...]
Using the following, you can update a single column:
var yourEntity = new YourEntity() { Id = id, DateProp = dateTime };
using (var db = new MyEfContextName())
{
db.YourEntities.Attach(yourEntity);
db.Entry(yourEntity).Property(x => x.DateProp).IsModified = true;
db.SaveChanges();
}
OK, I managed to handle this. The solution is the same as proposed by Seany84, with the only addition of disabling validation, in order to overcome issue with required fields. Basically, I had to add the following line just before 'SaveChanges():
db.Configuration.ValidateOnSaveEnabled = false;
So, the complete solution is:
var yourEntity = new YourEntity() { Id = id, DateProp = dateTime };
using (var db = new MyEfContextName())
{
db.YourEntities.Attach(yourEntity);
db.Entry(yourEntity).Property(x => x.DateProp).IsModified = true;
db.Configuration.ValidateOnSaveEnabled = false;
db.SaveChanges();
}
I'm having to write a app that effectively copies data from one databaseA.table to databaseB.table but there are a few fields in databaseB that aren't in databaseA.
I've come up with basic code below. The insert works and the update doesn't trow an error, however, the update doesn't actually update any records.
I've confirmed that the bcEmployee object in the update has the new values from databaseA like it should. The employee object is the record from databaseA.
Am I missing something to make this update?
BC_employee bcEmployee = new BC_employee();
bcEmployee.emp_id = employee.emp_id;
bcEmployee.emp_firstname = employee.emp_firstname;
bcEmployee.emp_lastname = employee.emp_lastname;
using (BCcontext ctx = new BCcontext())
{
var existBCemployee = ctx.employee.Find(employee.emp_id);
if (existBCemployee == null) //Insert
{
//Set default values that aren't in the original database
bcEmployee.emp_paystat = null;
bcEmployee.password = null;
bcEmployee.enroll_date = null;
ctx.employee.Add(bcEmployee);
}
else
{
ctx.Entry(existBCemployee).CurrentValues.SetValues(bcEmployee);
}
ctx.SaveChanges();
}
I have a plugin in post-operation witch need to create a folder on sharepoint via webservice, to do that, my plugin calls a webservice to execute a FechXML to get the info from the entity, but the problem is that entity still not exist, and it give me Null.
How do i force the plugin to submit/save the data to my FechXml to work?
PLUGIN CODE:
try
{
Entity entity;
if (context.InputParameters.Contains("Target") && context.InputParameters["Target"] is Entity)
{
entity = (Entity)context.InputParameters["Target"];
if (entity.LogicalName != "fcg_processos")
{
throw new InvalidPluginExecutionException("Ocorreu um erro no PlugIn Create Folder.");
}
}
else
{
throw new InvalidPluginExecutionException("Ocorreu um erro no PlugIn Create Folder.");
}
processosid = (Guid)((Entity)context.InputParameters["Target"])["fcg_processosid"];
string processoid2 = processosid.ToString();
PluginSharepointProcessos.ServiceReference.PrxActivityResult result = log.CreateFolderSP("Processo", processoid2);
string resultado = result.xmlContent;
if (result.retCode > 0)
{
throw new InvalidPluginExecutionException("Ocorreu um erro na criação do Folder do Processo.");
}
WEBSERVICE CODE:
{
//WEBSERVICE TO CALL XML FROM ENTITY
PrxActivityResult Processo = ProcessoFetch2("", "", guid);
string stxml;
stxml = Processo.XmlContent;
XmlDocument xmlDoc = new XmlDocument();
xmlDoc.LoadXml(stxml);
XmlNodeList nodeList = xmlDoc.SelectNodes("resultset/result");
List<string[]> lista = new List<string[]>();
string[] strs = new string[7];
if (nodeList.Count != 0)//verificar o numero de registos
{
foreach (XmlNode xmlnode in nodeList)
{
if (xmlnode.SelectSingleNode("//fcg_numero") != null)
strs[2] = xmlnode.SelectSingleNode("//fcg_numero").InnerText;
else
strs[2] = "";
if (xmlnode.SelectSingleNode("//Concurso.fcg_numero") != null)
strs[3] = xmlnode.SelectSingleNode("//Concurso.fcg_numero").InnerText;
else
strs[3] = "";
}
}
IwsspClient FmwSharepoint = new IwsspClient();
PrxActivityResult folderresult = new PrxActivityResult();
List<ws.fcg.sipp.svc.ServiceReferenceSharePoint.PareChave> arrayfields = new List<ws.fcg.sipp.svc.ServiceReferenceSharePoint.PareChave>();
ws.fcg.sipp.svc.ServiceReferenceSharePoint.PareChave nprocesso = new ws.fcg.sipp.svc.ServiceReferenceSharePoint.PareChave();
nprocesso.Key = "FCG_Numero_Processo";
nprocesso.value = strs[2];
arrayfields.Add(nprocesso);
ws.fcg.sipp.svc.ServiceReferenceSharePoint.PareChave npconcurso = new ws.fcg.sipp.svc.ServiceReferenceSharePoint.PareChave();
npconcurso.Key = "FCG_Numero_Concurso";
npconcurso.value = strs[3];
arrayfields.Add(npconcurso);
ws.fcg.sipp.svc.ServiceReferenceSharePoint.PareChave npguid = new ws.fcg.sipp.svc.ServiceReferenceSharePoint.PareChave();
npguid.Key = "FCG_Guid_CRM";
npguid.value = guid;
arrayfields.Add(npguid);
folderresult = FmwSharepoint.CreateFolder("http://localhost/folder", "Processos", strs[2], arrayfields.ToArray());
res = folderresult;
}
When a plugin runs on the Post-Operation, it is still within the database transaction, and it hasn't actually been committed to the database. Any calls done with the service reference passed in as a part of the Plugin Context will be executed within the context on the database transaction and you will be able to retrieve the newly created/updated values. If you create a brand new OrganizationServiceProxy (Which I'm guessing is what you're doing), it will execute outside of the database transaction, and will not see the newly created / updated values.
As #AndyMeyers suggests in his comment (which really should be an answer IMHO), grabbing the data from the plugin context either via a pre/post image or the target is ideal since it eliminates another database call. If you're having to lookup records that may have been created by another plugin that fired earlier, you'll need to use the IOrganizationService that is included in the plugin context.
I had no option and I used this code to run webservice based on image and forget the FecthXml, as mentioned, i get all info from the Image on the post operation and send back to the WebService. Thanks, here is the code:
entity = (Entity)context.InputParameters["Target"];
concursid = (Guid)entity.Attributes["fcg_concursid"];
guid = concursid.ToString();
string npconcurs = (string)entity.Attributes["fcg_numer"];
nconcurs= npconcurs;
EntityReference nprograma = (EntityReference)entity.Attributes["fcg_unidadeorganica"];
program = nprogram.Name;
if (entity.LogicalName != "fcg_concurs")
I am having a real issue with the EF v1. I have quite a big EDMX with maybe 50 entities mapped, but this one entity is causing me grief.
The entity has mappings to other entities which in effect are reference tables, but for some reason it is trying to do an insert and not just update itself.
Here is a fragment of my code:
using (var context = new someEntities()) {
var studentCourseJoin =
context.StudentCourseJoinSet.Where(o => o.Code == scjCode).First();
studentCourseJoin.EntryStatus = new EntryStatus { Code = viewModel.StudentDetails.EntryStatusCode };
studentCourseJoin.ParentalInHigherEducation = new ParentalInHigherEducation { Code = viewModel.StudentDetails.ParentalInHigherEducationCode };
studentCourseJoin.School = new School { Code = viewModel.StudentDetails.SchoolCode };
studentCourseJoin.Institution = new Institution { Code = viewModel.StudentDetails.InstitutionCode };
studentCourseJoin.LastSchoolEndYear = viewModel.StudentDetails.LastSchoolEndYear;
studentCourseJoin.LastInstitutionEndYear = viewModel.StudentDetails.LastInstitutionEndYear;
// Blows up here trying to do an insert on the studentCourseJoin.Institution.
// But if I removed this one, then it will blow up on another one.
context.SaveChanges(true);
}
If anyone has ANY ideas please, they would help a lot.
Try adding those lines before calling SaveChanges:
ObjectStateEntry entry = context.ObjectStateManager.GetObjectStateEntry(studentCourseJoin);
entry.ChangeState(EntityState.Modified);
Update:
Try this for Institution instead:
studentCourseJoin.Institution = context.Institutions.FirstOrDefault(i => i.Code == viewModel.StudentDetails.InstitutionCode);
I have an entity with two fk's. I've been trying to insert a record to the database without success. This are the approaches I've used:
valuePaymentBetToAdd.BetType = db.BetTypes.First(betType => betType.Id == valuePaymentBetToAdd.BetType.Id);
valuePaymentBetToAdd.Lottery = db.Lotteries.First(lotto => lotto.Id == valuePaymentBetToAdd.Lottery.Id);
In this case the second object gets assigned but when calling the SaveChanges method I get an error saying that the properties of the Lottery object were null.
valuePaymentBetToAdd.BetTypeReference.EntityKey = new EntityKey(db.DefaultContainerName + ".BetType", "Id", valuePaymentBetToAdd.BetType.Id);
valuePaymentBetToAdd.LotteryReference.EntityKey = new EntityKey(db.DefaultContainerName + ".Lottery", "Id", valuePaymentBetToAdd.Lottery.Id);
In this case I get another weird error. When the object is being added to the collection.
The object could not be added or attached because its EntityReference has an EntityKey property value that does not match the EntityKey for this object.
Am I missing something in this case?
Try setting the EntityReference like this:
valuePaymentBetToAdd.BetTypeReference.EntityKey = b.BetTypes.First(betType => betType.Id == valuePaymentBetToAdd.BetType.Id).EntityKey;
It works for me
How about creating a stub object for BetType and Lottery where you set only the Id property, and then attach those to their respective EntitySets, and then setting these objects on you Bet object, and save - something like:
Lottery lottery = new Lottery() { Id = valuePaymentBetToAdd.Lottery.Id };
BetType betType = new BetType() { Id = valuePaymentBetToAdd.BetType.Id };
MyContext.AttachTo("Lottery", lottery);
MyContext.AttachTo("BetType", betType);
valuePaymentBetToAdd.Lottery = lottery;
valuePaymentBetToAdd.BetType = betType;
MyContext.AddToBet(valuePaymentBetToAdd);
MyContext.SaveChanges();