public static async Task <IStatusGeneric <UserToRole> > AddRoleToUserAsync(
string userId,
string roleName,
IAuthorizationRepository repository)
{
if (userId == null)
{
throw new ArgumentNullException(nameof(userId));
}
if (roleName == null)
{
throw new ArgumentNullException(nameof(roleName));
}
if (repository == null)
{
throw new ArgumentNullException(nameof(repository));
}
var status = new StatusGenericHandler <UserToRole>();
UserToRole userToRole = await repository.GetUserToRoleAsync(userId, roleName);
if (userToRole != null)
{
status.AddError($"The user already has the Role '{roleName}'.");
return(status);
}
RoleToPermissions roleToAdd = await repository.GetRoleToPermissionAsync(roleName);
if (roleToAdd == null)
{
status.AddError($"Could not find the Role '{roleName}'.");
return(status);
}
return(status.SetResult(new UserToRole(userId, roleToAdd)));
}