The Insert statement conflict with the FOREIGN KEY constraint. Entity Framework - sql-server

Question

my models are as follows...
public class Company
{
[Key, DatabaseGenerated(DatabaseGeneratedOption.Identity)]
public Guid Id { get; set; }
[Required]
[MaxLength(50)]
public string Name { get; set; }
[Required]
[MaxLength(255)]
public string Fullname { get; set; }
public bool HasFuneralInsuranceParlours { get; set; }
public bool HasFuneralInsurancePolicies { get; set; }
public bool HasLifeInsurancePolicies { get; set; }
public bool IsDeleted { get; set; }
public virtual List<Office> Offices { get; set; }
}
public class Office
{
[Key, DatabaseGenerated(DatabaseGeneratedOption.Identity)]
public Guid Id { get; set; }
[MaxLength(50)]
public string Name { get; set; }
[MaxLength(100)]
public string Address1 { get; set; }
[MaxLength(100)]
public string Address2 { get; set; }
[MaxLength(100)]
public string Address3 { get; set; }
[MaxLength(20)]
public string Telephone { get; set; }
[MaxLength(20)]
public string Fax { get; set; }
[MaxLength(255)]
public string Email { get; set; }
public bool IsDeleted { get; set; }
public Guid CompanyId { get; set; }
public virtual Company Companies { get; set; }
public virtual List<Employee> Employees { get; set; }
}
and controllers
[HttpPost]
[ValidateAntiForgeryToken]
public ActionResult Create(OfficeModel model)
{
bool success = false;
string message = "";
byte[] logo = null;
var user = SecurityHelper.GetAuthenticatedUser(this.HttpContext);
try
{
if (ModelState.IsValid)
{
if (model.Name.IsNullOrWhitespace()) throw new Exception("Unable to create this Employee Name. The Type cannot be blank or spaces.");
if (models.Offices.Any(x => x.Name.ToLower() == model.Name.ToLower())) throw new Exception(string.Format("This Office's Name '{0}' already exists. Please check your data.", model.Name.ToUpperCase()));
var entry = new Office
{
Id = Guid.NewGuid(),
Name = model.Name.ToUpperCase(),
Address1 = model.Address1.ToUpperCase(),
Address2 = model.Address2.ToUpperCase(),
Address3 = model.Address3.ToUpperCase(),
Telephone = model.Telephone.ToUpperCase(),
Fax = model.Fax.ToUpperCase(),
Email = model.Email.ToUpperCase(),
IsDeleted = false,
CompanyId = user.CompanyId,
Bankings = new List<Banking>()
{
new Banking
{
Bank = model.OfficeBank.ToUpperCase(),
Account = model.BankAccount.ToUpperCase(),
Branch = model.Branch.ToUpperCase(),
BranchNo = model.BranchNo.ToUpperCase(),
AccountType = model.AccountType.ToUpperCase()
}
}
};
models.Offices.Add(entity);
success = true;
return RedirectToAction("Index");
}
else
{
message = "An error was cought please check your data and retry";
}
}
catch (Exception ex)
{
message = ex.Message;
}
return View(model);
}
when l debug the above code l return the following error
"The INSERT statement conflicted with the FOREIGN KEY constraint
\"FK_dbo.Offices_dbo.Companies_CompanyId\". The conflict occurred in
database \"PolicyManager\", table \"dbo.Companies\", column
'Id'.\r\nThe statement has been terminated."
When l hover model.Name l am return a value but the rest return me a null value which l suspect the thus the cause of the the above error.
What problem can it possible be because l have used the similar code before and it worked. May anyone help. Thank you in advance

Answer 1

You are adding a New Office.
The error says that there is a referential integrity problem With the Foreign key constraint to the Company table.
When you create the Order you add the following Company key:
CompanyId = user.CompanyId
So it appears that user.CompanyId is not an id that is registered against an existing Company.