public int EnsureSeedData()
{
if (!AllMigrationsApplied())
{
throw new Exception("Migrations not applied.");
}
EntityTable.AddRange(Models.EntityTable.EnsureSeedData());
Database.OpenConnection();
Database.ExecuteSqlCommand("SET IDENTITY_INSERT dbo.EntityTable ON");
var changeCount = SaveChanges();
Database.CloseConnection();
return(changeCount);
}