BusinessManager.Delete() doesn&#39;t work

BusinessManager.Delete() doesn't work

Konrad

Vote:

Hello,

I would like to implement a function for deleting users. For this purpose, I have written the following piece of code:

ContactEntity target =
    (ContactEntity)BusinessManager.Load("Contact", (PrimaryKeyId)entityObject.PrimaryKeyId);
if (target != null)
{
    target.PreferredBillingAddressId = new PrimaryKeyId?();
    target.PreferredShippingAddressId = new PrimaryKeyId?();
    BusinessManager.Update((EntityObject)target);
}

BusinessManager.Delete("Contact", (PrimaryKeyId)entityObject.PrimaryKeyId);

Apart from the BusinessManager.Delete() method, I also used other methods:

BusinessManager.Delete(entityObject);

var contact = entityObject.CastTo<CustomerContact>(null);
contact.DeleteCustomerContactOnly();

Each of them was returning a Null Exception. After debugging, I noticed that this is happening because the MapUserKey class has a empty "_converters" list. It's worth adding that when I call the MapUserKey class explicitly in my application, it works correctly, and the "_converters" list has 5 elements.

Stack Trace:

System.NullReferenceException: Object reference not set to an instance of an object.
at Mediachase.Commerce.Customers.MapUserKey.ToUserKey(String typedUserKey)
at Mediachase.Commerce.Customers.CustomerContext.GetUserForContactId(PrimaryKeyId customerContactId)
at Mediachase.Commerce.Customers.Handlers.ContactRequestHandler.PreDelete(BusinessContext context)
at Mediachase.BusinessFoundation.Data.Business.BusinessManager.Execute(Request request)
at Mediachase.BusinessFoundation.Data.Business.BusinessManager.Delete(String metaClassName, PrimaryKeyId primaryKeyId)

Have any of you encountered such an issue? If so, how did you solve it?

#306361

Aug 07, 2023 10:32

Quan Mai

Vote:

You should not have to set the PreferredBillingAddressId and PreferredShippingAddressId to empty before deleting. why do you do that?

#306362

Aug 07, 2023 11:35

Konrad

Vote:

I did this because I traced the code in Commerce Manager, and there's a piece of code there:

Of course, I also tried deleting a user without changing the PreferredBillingAddressId and PreferredShippingAddressId, but the result is the same. I still receive a Null Exception.

#306368

Aug 07, 2023 11:42

Konrad

Vote:

I found a workaround by overwriting the UserId.

public bool DeleteUser(CustomerContact contact, MapUserKey mapUserKey)

{

var userId = mapUserKey.ToUserKey(contact?.UserId);

if (Membership.DeleteUser(userId.ToString()))

{

OverwriteUserId(contact);

BusinessManager.Delete(StringConstants.CustomFields.ContactClassName, (PrimaryKeyId)contact.PrimaryKeyId);

return true;

}

return false;

}

private void OverwriteUserId(CustomerContact contact)

{

contact.UserId = Guid.NewGuid().ToString();

contact.SaveChanges();

}

#309604

Edited, Sep 27, 2023 11:41