public IHttpActionResult RemoveRoleFromUser(UserAndRoleJsonModel deleteData)
        {
            var role = _unitOfWork.Roles.SingleOrDefault(r => r.Name.Equals(deleteData.roleName));
            var user = _unitOfWork.Users.SingleOrDefault(u => u.Id.Equals(deleteData.userId));

            user.AspNetRoles.Remove(role);
            _unitOfWork.Complete();

            var usersRoles = user.AspNetRoles.Select(r => new RoleDto
            {
                Id   = r.Id,
                Name = r.Name
            });

            return(Ok(usersRoles));
        }
        public IHttpActionResult AddRoleToTheUser(UserAndRoleJsonModel postData)
        {
            var user = _unitOfWork.Users.SingleOrDefault(u => u.Id.Equals(postData.userId));
            var role = _unitOfWork.Roles.SingleOrDefault(r => r.Name.Equals(postData.roleName));

            if (user.AspNetRoles.Contains(role))
            {
                return(BadRequest("User is already in that role!"));
            }

            user.AspNetRoles.Add(role);

            _unitOfWork.Complete();

            var usersRoles = user.AspNetRoles.Select(r => new RoleDto
            {
                Id   = r.Id,
                Name = r.Name
            });

            return(Ok(usersRoles));
        }