I am having a problem with repeating previous operations when there is an error in the SaveChanges method of Entity Framework.
Below is the code block
public static int SaveChangesTask(this DbContext db)
{
int result = -1;int countLoop = 0;
bool continueLoop = true;
var modifiedOrAddedEntities = db.ChangeTracker.Entries().Where(a => a.State != EntityState.Detached
&& a.State != EntityState.Unchanged).ToList();
while (continueLoop && countLoop<3)
{
try
{
result= db.SaveChanges();
continueLoop = false;
}
catch(Exception ex)
{
string error = ex.ToSystemException();
if(error.ToLowerInvariant().Contains("ORA-00060".ToLowerInvariant()) || error.ToLowerInvariant().Contains("deadlock"))
{
foreach (var item in modifiedOrAddedEntities)
{
db.Entry(item).State = item.State;
}
countLoop++;
Random rnd = new Random();
System.Threading.Thread.Sleep(rnd.Next(1, 5)* 1000);
}
else
{
throw ex;
}
}
}
return result;
}
But when I want to add old tracking objects to context, Entity Framework Throws Exception like that
"The entity type DbEntityEntry is not part of the model for the current context"
Related
I have company table where values are inserted
public int SaveCompany(Company objCompany)
{
int CompanyID = 0
try
{
using (var context = new Cubicle_EntityEntities())
{
context.Companies.Add(objCompany); //add entity to the add method
int res = context.SaveChanges(); //insert it into table
if (res > 0)
{
Debug.WriteLine("Data Inserted Successfully");
}
else
{
Debug.WriteLine("Try Again");
}
CompanyID = objCompany.CompanyId;
Debug.WriteLine("CompanyId " + CompanyID);
}
}
catch (Exception ex)
{
CompanyID = 0;
bool rethrow = UserInterfaceExceptionHandler.HandleException(ref ex);
throw ex;
}
return CompanyID;
}
Every time I get res 1,but data not inserted in table.
I have created two new fields named "Price" for quote and quote product and I want to update the second every time I update the first.
Here is my code:
protected void ExecutePostAccountUpdateContacts(LocalPluginContext localContext)
{
if (localContext == null)
{
throw new ArgumentNullException("localContext");
}
string oldPrice = "";
string newPrice = "";
IPluginExecutionContext context = localContext.PluginExecutionContext;
IOrganizationService service = localContext.OrganizationService;
var ServiceContext = new OrganizationServiceContext(service);
ITracingService tracingService = localContext.TracingService;
if (context.InputParameters.Contains("Target") &&
context.InputParameters["Target"] is Entity)
{
Entity entity = (Entity)context.InputParameters["Target"];
Entity preImageEntity = (context.PreEntityImages != null && context.PreEntityImages.Contains(this.preImageAlias)) ? context.PreEntityImages[this.preImageAlias] : null;
// get the post entity image
Entity postImageEntity = (context.PostEntityImages != null && context.PostEntityImages.Contains(this.postImageAlias)) ? context.PostEntityImages[this.postImageAlias] : null;
if (preImageEntity.Attributes.Contains("Price"))
{
oldPrice = (string)preImageEntity.Attributes["Price"];
}
if (postImageEntity.Attributes.Contains("Price"))
{
newPrice = (string)postImageEntity.Attributes["Price"];
}
if (newPrice != oldPrice)
{
try
{
//Create query to get the related contacts
var res = from c in ServiceContext.CreateQuery("Products")
where c["parentQuoteid"].Equals(entity.Id)
select c;
foreach (var c in res)
{
Entity e = (Entity)c;
e["Price"] = newPrice;
ServiceContext.UpdateObject(e);
}
ServiceContext.SaveChanges();
}
catch (FaultException ex)
{
throw new InvalidPluginExecutionException("An error occurred in the plug-in.", ex);
}
}
}
}
Although you haven't asked a question, your query isn't quite right. So I am assuming your plugin fails when querying for product with a parentquoteid.
Not all linq operators are implemented, also , pass the entity logical name to the create query as a parameter, so instead of Products, just product. There is no out of the box field called parentquoteid, are you missing your custom attribute prefix?
var res = from c in ServiceContext.CreateQuery("product")
where c.GetAttributeValue<Guid>("new_parentquoteid") == entity.Id
select c;
I have migrated my project from EF4 to EF6. I am facing trouble while updating the records. Below is my code
public int SaveApplicantData(Applicant objApplicant, bool isEdit)
{
DBEntities context = new DBEntities();
int applicantId = 0;
try
{
if (objApplicant.Id > 0)
{
var applicant = context.Applicants.Where(a => ((a.Id != objApplicant.Id) && (a.SSN == objApplicant.SSN))).FirstOrDefault();
if (applicant != null)
{
return -1;
}
else
{
applicant = context.Applicants.Find(objApplicant.Id);
}
if (applicant != null)
{
applicant.FirstName = "TEST NAME";
context.SaveChanges();
}
}
return objApplicant.Id;
}
}
I have also tried context.Entry(applicant).CurrentValues.SetValues(objApplicant) but does not work for me. Spending lot of hours in finding solution. Please assists with appropriate solution.
UPDATE
Also I tried
context.Applicants.Attach(objApplicant);
context.Entry(objApplicant).State = EntityState.Modified;
context.SaveChanges();
but no success!
Try the below code instead of adding in context.Applicants.Add(objApplicant);
context.Entry(objApplicant).State = EntityState.Modified;
context.SaveChanges();
Update: Try this code block.
if (applicant != null)
{
applicant.FirstName = "TEST NAME";
context.Entry(applicant).State = EntityState.Modified;
context.SaveChanges();
}
I have a generic repository for my Entities, all my entities (generated by the Code generation Item) have a personalized partial that implements an IID interface, at this point all of my entites must have a Int32 Id property.
So, my problems is with the update, here is my code
public class RepositorioPersistencia<T> where T : class
{
public static bool Update(T entity)
{
try
{
using (var ctx = new FisioKinectEntities())
{
// here a get the Entity from the actual context
var currentEntity = ctx.Set<T>().Find(((BLL.Interfaces.IID)entity).Id);
var propertiesFromNewEntity = entity.GetType().GetProperties();
var propertiesFromCurrentEntity = currentEntity.GetType().GetProperties();
for (int i = 0; i < propertiesFromCurrentEntity.Length; i++)
{
//I'am trying to update my current entity with the values of the new entity
//but this code causes an exception
propertiesFromCurrentEntity[i].SetValue(currentEntity, propertiesFromNewEntity[i].GetValue(entity, null), null);
}
ctx.SaveChanges();
return true;
}
}
catch
{
return false;
}
}
}
Someone can help me? this driving me crazy.
You can use the EF API to update the values of an entity as follows.
public static bool Update(T entity)
{
try
{
using (var ctx = new FisioKinectEntities())
{
var currentEntity = ctx.Set<T>().Find(((BLL.Interfaces.IID)entity).Id);
var entry = ctx.Entry(currentEntity);
entry.CurrentValues.SetValues(entity);
ctx.SaveChanges();
return true;
}
}
catch
{
return false;
}
}
I am writing crm2011 plugin in "Email" entity with "Send" Message of Pre_operation. What i want to do is when i click "Send" button in email entity, I do the necessary checking before send. If the checking is not correct, I want to prevent and stop the sending email and show "the alert message" and stop the second plugin(this plugin send email and create the associated entity to convert "Case"). Please give me some suggestion for that plugin?
Should i use pre-Validation stage or Pre_operation state? And how can I return false to stop plugin.
public void Execute(IServiceProvider serviceProvider)
{
try
{
string message = null;
_serviceProvider = serviceProvider;
_context = (IPluginExecutionContext)
serviceProvider.GetService(typeof(IPluginExecutionContext));
_serviceFactory = (IOrganizationServiceFactory)serviceProvider.GetService(typeof(IOrganizationServiceFactory));
_currentUser = _context.UserId;
message = _context.MessageName.ToLower();
if (message == "send")
{
if (_context.InputParameters != null && _context.InputParameters.Contains("EmailId"))
{
object objEmailId = _context.InputParameters["EmailId"];
if (objEmailId != null)
{
_emailId = new Guid(objEmailId.ToString());
FindEmailInfo();
if (_email != null)
{
if (_email.Attributes.Contains("description") && _email.Attributes["description"] != null)//Email descritpion is not null
{
string emaildescription = StripHTML();
//Find KB Article prefix no in system config entity
serviceguideprefix = "ServiceGuidesPrefix";
QueryByAttribute query = new QueryByAttribute("ppp_systemconfig");
query.ColumnSet = new ColumnSet(true);
query.AddAttributeValue(sysconfig_name, serviceguideprefix);
EntityCollection sysconfig = _service.RetrieveMultiple(query);
if (sysconfig.Entities.Count > 0)
{
Entity e = sysconfig.Entities[0];
if (e.Attributes.Contains("ppp_value"))
{
ppp_value = e.Attributes["ppp_value"].ToString();
}
}
if (ppp_value != null && ppp_value != string.Empty)
{
//var matches = Regex.Matches(emaildescription, #"KBA-\d*-\w*").Cast<Match>().ToArray();
var matches = Regex.Matches(emaildescription, ppp_value + #"-\d*-\w*").Cast<Match>().ToArray();
//ReadKBNo(emaildescription);
foreach (Match kbnumber in matches)
{
EntityCollection kbarticlecol = FindKBArticleIds(kbnumber.ToString());
if (kbarticlecol.Entities.Count > 0)
{
Entity kbariticle = kbarticlecol.Entities[0];
if (kbariticle.Attributes.Contains("mom_internalkm"))
{
bool internalserviceguide = (bool)kbariticle.Attributes["mom_internalkm"];
if (internalserviceguide) found = true;
else found = false;
}
else found = false;
}
}
}
if (found)
{
//-----
}
}
}
}
}
}
}
catch (Exception ex)
{
throw new InvalidPluginExecutionException(ex.Message, ex);
}
}
Well stopping the plugin is dead easy you just throw InvalidPluginException, the message you give it will be shown to the user in a alert window. You will have to do this on the pre of the send. In this case I don't think it will matter if its pre-validation or pre-operation.
Edit:
Yes, you should throw an InvalidPluginException even if no exception has happened in code. I accept this isnt what we would normally do, but its the way its meant to work. Msdn has more details: http://msdn.microsoft.com/en-us/library/gg334685.aspx
So for example the code would look like:
public void Execute(IServiceProvider serviceProvider)
{
try
{
//This is where we validate the email send
if(emailIsOkay)
{
//Do something
}
else if(emailIsNotOkay)
{
//Throw and exception that will stop the plugin and the message will be shown to the user (if its synchronous)
throw new InvalidPluginExecutionException("Hello user, your email is not correct!!");
}
}
catch (InvalidPluginExecutionException invalid)
{
//We dont to catch exception for InvalidPluginExecution, so just throw them on
throw;
}
catch (Exception ex)
{
//This exception catches if something goes wrong in the code, or some other process.
throw new InvalidPluginExecutionException(ex.Message, ex);
}
}
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Microsoft.Crm;
using Microsoft.Xrm.Sdk;
using System.ServiceModel;
using Microsoft.Xrm.Sdk.Query;
using Microsoft.Crm.Sdk.Messages;
using System.Text.RegularExpressions;
using System.Xml.Linq;
namespace SendEmail
{
public class Email : IPlugin
{
public void Execute(IServiceProvider serviceprovider)
{
IPluginExecutionContext context = (IPluginExecutionContext)serviceprovider.GetService(typeof(IPluginExecutionContext));
if (!(context.InputParameters.Contains("Target") && context.InputParameters["Target"] is Entity))
return;
//entity
Entity ent = (Entity)context.InputParameters["Target"];
if (ent.LogicalName != "entityName")//EntityName
throw new InvalidPluginExecutionException("Not a Service Request record! ");
//service
IOrganizationServiceFactory serviceFactory = (IOrganizationServiceFactory)serviceprovider.GetService(typeof(IOrganizationServiceFactory));
IOrganizationService _service = serviceFactory.CreateOrganizationService(context.UserId);
string Email="";
if (ent.Contains("emailidfiled"))
Email = (string)ent["emailidfiled"];
#region email template
QueryExpression query = new QueryExpression()
{
EntityName = "template",
Criteria = new FilterExpression(LogicalOperator.And),
ColumnSet = new ColumnSet(true)
};
query.Criteria.AddCondition("title", ConditionOperator.Equal, "templateName");
EntityCollection _coll = _service.RetrieveMultiple(query);
if (_coll.Entities.Count == 0)
throw new InvalidPluginExecutionException("Unable to find the template!");
if (_coll.Entities.Count > 1)
throw new InvalidPluginExecutionException("More than one template found!");
var subjectTemplate = "";
if (_coll[0].Contains("subject"))
{
subjectTemplate = GetDataFromXml(_coll[0]["subject"].ToString(), "match");
}
var bodyTemplate = "";
if (_coll[0].Contains("body"))
{
bodyTemplate = GetDataFromXml(_coll[0]["body"].ToString(), "match");
}
#endregion
#region email prep
Entity email = new Entity("email");
Entity entTo = new Entity("activityparty");
entTo["addressused"] =Email;
Entity entFrom = new Entity("activityparty");
entFrom["partyid"] = "admin#admin.com";
email["to"] = new Entity[] { entTo };
email["from"] = new Entity[] { entFrom };
email["regardingobjectid"] = new EntityReference(ent.LogicalName, ent.Id);
email["subject"] = subjectTemplate;
email["description"] = bodyTemplate;
#endregion
#region email creation & sending
try
{
var emailid = _service.Create(email);
SendEmailRequest req = new SendEmailRequest();
req.EmailId = emailid;
req.IssueSend = true;
GetTrackingTokenEmailRequest wod_GetTrackingTokenEmailRequest = new GetTrackingTokenEmailRequest();
GetTrackingTokenEmailResponse wod_GetTrackingTokenEmailResponse = (GetTrackingTokenEmailResponse)
_service.Execute(wod_GetTrackingTokenEmailRequest);
req.TrackingToken = wod_GetTrackingTokenEmailResponse.TrackingToken;
_service.Execute(req);
}
catch (Exception ex)
{
throw new InvalidPluginExecutionException("Email can't be saved / sent." + Environment.NewLine + "Details: " + ex.Message);
}
#endregion
}
private static string GetDataFromXml(string value, string attributeName)
{
if (string.IsNullOrEmpty(value))
{
return string.Empty;
}
XDocument document = XDocument.Parse(value);
// get the Element with the attribute name specified
XElement element = document.Descendants().Where(ele => ele.Attributes().Any(attr => attr.Name == attributeName)).FirstOrDefault();
return element == null ? string.Empty : element.Value;
}
}
}