How to insert values into a table with optional relationship in ef? - entity-framework-core

Question

I have those two entities, PatientRegistry and PatientAccount. The relationship between them is 1-0..1. I am trying to seed in my primary table PatientRegistry but I keep getting null errors for required fields in my optional table PatientAccount, How can I insert values in my primary table without the need to seed in my optional table as well?
Unhandled Exception: Microsoft.EntityFrameworkCore.DbUpdateException:
An error occurred while updating the entries. See the inner exception
for details. ---> System.Data.SqlClient.SqlException: Cannot insert
the value NULL into column 'Password', table
'ArtCoreDb.dbo.AspPatientsAccount'; column does not allow nulls.
UPDATE fails.
public class PatientRegistry {
[DatabaseGenerated (DatabaseGeneratedOption.Identity)]
[Display (Name = "Record Id")]
public long RecordId { get; set; }
[Key, DatabaseGenerated (DatabaseGeneratedOption.None)]
[Display (Name = "Patient File Number")]
public long PatientFileId { get; set; }
[Required, StringLength (50)]
[Display (Name = "First Name")]
public string FirstName { get; set; }
public virtual ICollection<PartnerRegistry> Partners { get; set; }
public virtual PatientAccount PatientAccount { get; set; }
}
public class PatientAccount {
[Key, DatabaseGenerated (DatabaseGeneratedOption.Identity)]
public long RecordId { get; set; }
[Required]
public string Password { get; set; }
[Required, StringLength (15)]
public string MobileNo { get; set; }
public bool IsConfirmedPhoneNumber { get; set; } = false;
public bool IsConfirmedEmailAddress { get; set; } = false;
public bool IsLocked { get; set; } = false;
public int? FailedAttempts { get; set; }
public DateTimeOffset? LastLoggedIn { get; set; }
public DateTimeOffset DateCreated { get; set; }
[Timestamp]
public byte[] RowVersion { get; set; }
public long? PatientFileId { get; set; }
public virtual PatientRegistry PatientFile { get; set; }
}
And my fluent API,
protected override void OnModelCreating (ModelBuilder builder) {
base.OnModelCreating (builder);
builder.Entity<PatientRegistry> ()
.HasOne (a => a.PatientAccount)
.WithOne (b => b.PatientFile)
.HasForeignKey<PatientAccount> (c => c.PatientFileId)
.OnDelete (DeleteBehavior.Cascade);
}
And I seed,
if (!context.PatientsRegistry.Any ()) {
context.PatientsRegistry.AddRange (
new PatientRegistry {
PatientFileId = 1111,
FirstName = "John"
}
);
context.SaveChanges ();
}
works only if I add ,,
PatientAccount =
new PatientAccount {
PatientFileId = 1111,
CountryCodeId = context.Countries.Where (g => g.Name == "United States of America").SingleOrDefault ().Id,
AreaCode = 424,
Email = "aamaizar#gmail.com",
MobileNo = "3244990",
IsConfirmedEmailAddress = false,
IsConfirmedPhoneNumber = false,
IsLocked = false,
Password = "213123",
},
in reality, I want to be able to insert in PatientsRegistry table without the need to insert into PatientAccount

Answer 1

Using Add (or AddRange) marks all reachable entities in the graph in added state, I just have to added PatientAccount prop to my object during seeding
new PatientRegistry { PatientFileId = 1111, FirstName = "John", PatientAccount = {.......} }
Ref