Question

The error I am getting is “Cannot open database “NerdlyDB” requested by the login. The login failed.
Login failed for user ‘ComputerName\User Name’.

This is my connection string:

<add name="NerdlyDB" connectionString="Data Source=(LocalDb)\v11.0; Integrated Security=SSPI; initial catalog= NerdlyDB" providerName="System.Data.SqlClient"/>

This database was generates by using EF code first approach. I am new to this one, so I will show you what I did in case it is off somewhere:

On of my Entity Classes:

namespace NerdlyThings.Models
{
public class Post
{
    public int ID { get; set; }
    public string Title { get; set; }
    public string Description { get; set; }
    public string Content { get; set; }
    public DateTime Date { get; set; }
    public string Tags { get; set; }
}
}

DBContext Class

namespace NerdlyThings.Models
{
public class NerdlyDB : DbContext
{
    public DbSet<Post> Posts { get; set; }
    public DbSet<Comment> Comments { get; set; }
    public DbSet<Image> Images { get; set; }
    public DbSet<Quote> Quotes { get; set; }
}
}

I see that the error is obvious an authentication issue, but I don’t know where to set it using code first, only via setting up a db in sql server management studio.

*EDIT***

Ok, so I am not by the computer I originally did this on, but I had some time to kill at work so gave this another go by following the simple instructions here

I did this in Visual Studio 2012 RC in an MVC4 internet application template. Works like a dream and I can only assume I have either some strange configuration issue on my other computer, or something got messed up along the way. Anyway here is what I did:

Classes:

namespace CodeFirstBlog.Models
{
public class Blog
{
    public int Id { get; set; }
    public string Title { get; set; }
    public string BloggerName { get; set; }
    public virtual ICollection<Post> Posts { get; set; }
}

public class Post
{
    public int Id { get; set; }
    public string Title { get; set; }
    public DateTime DateCreated { get; set; }
    public string Content { get; set; }
    public int BlogId { get; set; }
    public ICollection<Comment> Comments { get; set; }
}

public class Comment
{
    public int Id { get; set; }
    public DateTime DateCreated { get; set; }
    public string Content { get; set; }
    public int PostId { get; set; }
    public Post Post { get; set; }
}
}

DBContext Class:

namespace CodeFirstBlog.Models
{
public class BlogContext : DbContext
{
    public DbSet<Blog> Blogs { get; set; }
    public DbSet<Post> Posts { get; set; }
    public DbSet<Comment> Comments { get; set; }
}
}

I set these up and then created a controller like so (Just had it generated my selecting my context and the class):

public class BlogController : Controller
{
    private BlogContext db = new BlogContext();

    //
    // GET: /Blog/

    public ActionResult Index()
    {
        return View(db.Blogs.ToList());
    }

    //
    // GET: /Blog/Details/5

    public ActionResult Details(int id = 0)
    {
        Blog blog = db.Blogs.Find(id);
        if (blog == null)
        {
            return HttpNotFound();
        }
        return View(blog);
    }

    //
    // GET: /Blog/Create

    public ActionResult Create()
    {
        return View();
    }

    //
    // POST: /Blog/Create

    [HttpPost]
    public ActionResult Create(Blog blog)
    {
        if (ModelState.IsValid)
        {
            db.Blogs.Add(blog);
            db.SaveChanges();
            return RedirectToAction("Index");
        }

        return View(blog);
    }

    //
    // GET: /Blog/Edit/5

    public ActionResult Edit(int id = 0)
    {
        Blog blog = db.Blogs.Find(id);
        if (blog == null)
        {
            return HttpNotFound();
        }
        return View(blog);
    }

    //
    // POST: /Blog/Edit/5

    [HttpPost]
    public ActionResult Edit(Blog blog)
    {
        if (ModelState.IsValid)
        {
            db.Entry(blog).State = EntityState.Modified;
            db.SaveChanges();
            return RedirectToAction("Index");
        }
        return View(blog);
    }

    //
    // GET: /Blog/Delete/5

    public ActionResult Delete(int id = 0)
    {
        Blog blog = db.Blogs.Find(id);
        if (blog == null)
        {
            return HttpNotFound();
        }
        return View(blog);
    }

    //
    // POST: /Blog/Delete/5

    [HttpPost, ActionName("Delete")]
    public ActionResult DeleteConfirmed(int id)
    {
        Blog blog = db.Blogs.Find(id);
        db.Blogs.Remove(blog);
        db.SaveChanges();
        return RedirectToAction("Index");
    }

    protected override void Dispose(bool disposing)
    {
        db.Dispose();
        base.Dispose(disposing);
    }
}

Then I simply ran the application, used the generated views to create a new Blog. Works great. The database was generated in my App_Data folder, I can access it fine and see the generated schema. So problem solved, maybe? From this point I can use your suggested answers to tweak db settings and whatnot, so thank you.

Answer 1

The best approach I have found so far is to create my own IDatabaseInitializer to run commands that I need to create indices and create users.

public class MyContext : DbContext
{
    static private Initializer DbInitializer;
    static MyContext()
    {
        DbInitializer = new MyContext.Initializer();
        Database.SetInitializer<MyContext>(DbInitializer);
    }
}
public class Initializer : IDatabaseInitializer<MyContext>
{
    public void InitializeDatabase(MyContext context)
    {
        string ddl = "(Some SQL command to e.g. create an index or create a user)";
        context.Database.ExecuteSqlCommand(ddl);
    }
}