CODEWITHSUNDEEP
c#asp.net-mvcentity-framework
jr3000
jr3000

Reputation: 428

How to add more user data to ASP.NET MVC user.Identity

How can I extend or add more methods to the user identity?

When a user is registered, in the header nav, the username is specified to be the user email. How can I customized the user identity to add more data eg. User.Identity.GetFullname(). I am using ASP.NET MVC.

Upvotes: 2

Views: 1892

Answers (1)

Burak
Burak

Reputation: 507

If you just want to add more fields to your IdentityUser, then you can just simply extend it with a help of a class.

For example, create a new class:

public class ApplicationUser : IdentityUser{

   public string FullName { get; set;}

}

When will you apply the migrations to your database you'll see that there will be an extra column which is FullName.

You shouldn't recreate the properties which are already stored in your existing AspNetUsers table.(Ex: Id, Email, Username etc..) Because this will not regenerate your whole table but just adds the new columns to the AspNetUsers table.

But there is another approach, and this part is important I think.

Lets assume that you have a Product.cs : 

public class Product {
   public int Id { get; set;}
   public string ProductNo { get; set; } 
   public string ProductName { get; set;}
}

and you have already using a DbContext to apply your migrations about your Product Model.

Possible DbContext.cs would be : 

public class DataContext : DbContext
{
    protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
    {
       optionsBuilder.UseSqlServer(@"Server=YourServer; Database=DbName; integrated security=true;");
    }

    protected override void OnModelCreating(ModelBuilder modelBuilder)
    {
         //This can be used.  
    }

    public DbSet<Product> Products { get; set; }
}

And in general, your DataContext for your ApplicationUser would be like this:

public class ApplicationIdentityDbContext : IdentityDbContext<ApplicationUser>
{
   public ApplicationIdentityDbContext(DbContextOptions<ApplicationIdentityDbContext> options) : base(options){}
}

This is a simple way of creating Data Contexts. But when you would like to define a relationship with those 2 tables(Products and AspNetUsers), It can be a relation where all the users have his/her own Product, then high possibility you'll get an error or you wont be able to control 2 different DataContexts.

So, for avoiding these kind of struggles, using only 1 Data Context would be a better solution and it should look like this:

public class DataContext: IdentityDbContext<ApplicationUser>
    {
        public DataContext(DbContextOptions<DataContext> options)
            : base(options)
        {

        }

        public DbSet<Product> Products { get; set; }

        protected override void OnModelCreating(ModelBuilder modelBuilder)
        {

            base.OnModelCreating(modelBuilder);
        }
}

Now you can simply define ForeignKeys between your ApplicationUser and Product.

For example:

public class ApplicationUser: IdentityUser{
    public string FullName { get; set; }

    public int? ProductId { get; set; }
    public Product Product { get; set; }
}

Upvotes: 1

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