/// <summary>
/// Add an new area for an <see cref="User"/> to the MongoDB
/// </summary>
/// <param name="areaName">The AREA's name to be created</param>
/// <returns>A redirect to the "Index" action</returns>
public ActionResult AddArea(string areaName)
{
string name = "";
DataAccess db = DataAccess.Instance;
if (User.Identity is ClaimsIdentity claimId)
{
name = claimId.FindFirst(ClaimTypes.NameIdentifier).Value;
db.AddAreaToUser(name, areaName);
}
return(RedirectToAction("Index"));
}