ASP.NET MVC-根据用户角色获取数据库数据

Question

I'm fairly new to the MVC and database stuff.

What I need to do is retrieve data depending on a user's role. I can get all the data from the table below but I need to only show specific data.

  1            1         some data    some data    some data
  2            1         some data    some data    some data 
  3            1         some data    some data    some data
  4            2         some data    some data    some data 
  5            2         some data    some data    some data
  6            3         some data    some data    some data

So if a user is logged in and assigned a role, how would I fetch data from the table for that role? If I am assigned roleId 1, I should only see data from the table with roleId = 1.

I'm still learning and this would be awesome help.

THANKS!

My Code:

Controller

    private projectEntities db = new projectEntities();

    // GET: /Assessment/
    public ActionResult Index()
    {
        //return View(db.Scales.ToList());
        var data = new ModelServices().GetScale();
        return View(data);


    }

Model

public class ModelServices : IDisposable
{
    private readonly projectEntities entities = new projectEntities();
    public IEnumerable GetScale()
    {
        return entities.Scales.ToList();
    }
    public void Dispose()
    {
        entities.Dispose();
    }
}

View:

@model IEnumerable<project.Models.Scale>
@{
WebGrid grid = new WebGrid(Model);   
}

@grid.GetHtml()

Answer 1

I'd create a new services method like so:

public IEnumerable<Scale> GetScalesWithRole(int roleId)
{
    return entities.Scales.Where(s => s.RoleId == roleId).ToList();
}