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Start your free trialJohn Fouts
12,234 PointsNot sure what I am doing wrong with this one? As far as I can tell I followed along with the video example to a <T>.
I tried two different ways of coding for this code challenge, I was unable to pass using either coding method as illustrated in the video. I included a comment in my code to show the other way that I tried to code to pass the challenge.
using System.Data.Entity.Migrations;
namespace Treehouse.CodeChallenges
{
public class Configuration : DbMigrationsConfiguration<Context>
{
public Configuration()
{
AutomaticMigrationsEnabled = false;
}
protected override void Seed(Context context)
{
//const int studentId1 = 1;
//const int studentId2 = 2;
context.Students.AddorUpdate(
s => s.Id,
new Student() {Id=1, FirstName = "John", LastName = "Smith"}
new Student() {Id=2, FirstName = "Sally", LastName = "Jones"}
);
//Tried two different ways the first way I tried involved using the constants above with the constant field names placed where the
//Id fields are. e.g. new Student() {Id=studentId1, FirstName = "John", LastName = "Smith"}
//Make a call to the context's Students DbSet property's AddOrUpdate method
//For the first parameter, pass in a lambda expression that returns the Student entity class' Id property as the property that EF should use to determine if an add or update should be done
//Pass in a Student entity object instance with the values "1", "John", and "Smith" respectively for the properties Id, FirstName, and LastName
//Pass in a second Student entity object instance with the values "2", "Sally", and "Jones" respectively for the properties Id, FirstName, and LastName
// TODO Add student test data.
}
}
}
using System.Data.Entity;
namespace Treehouse.CodeChallenges
{
public class Context : DbContext
{
public Context()
{
Database.SetInitializer<Context>(null);
}
public virtual DbSet<Student> Students { get; set; }
}
}
namespace Treehouse.CodeChallenges
{
public class Student
{
public int Id { get; set; }
public string FirstName { get; set; }
public string LastName { get; set; }
}
}
3 Answers
Steven Parker
231,210 PointsYou're very close! Just two tiny errors:
- you wrote "AddorUpdate" (with small "o") instead of "AddOrUpdate" (with capital "O")
- you're missing a comma after the second parameter (first Student object)
Amy Shah
25,337 PointsGreat job Fouts!
John Fouts
12,234 PointsThank you Amy.
Larry Singleton
18,946 PointsRemoved, I didn't mean to step over the line.