+ def register_changeset(struct, params \\ %{}) do
+ changeset = struct
+ |> cast(params, [:bio, :email, :name, :nickname, :password, :password_confirmation])
+ |> validate_required([:bio, :email, :name, :nickname, :password, :password_confirmation])
+ |> validate_confirmation(:password)
+ |> unique_constraint(:email)
+ |> unique_constraint(:nickname)
+
+ if changeset.valid? do
+ hashed = Comeonin.Pbkdf2.hashpwsalt(changeset.changes[:password])
+ ap_id = User.ap_id(%User{nickname: changeset.changes[:nickname]})
+ followers = User.ap_followers(%User{nickname: changeset.changes[:nickname]})
+ changeset
+ |> put_change(:password_hash, hashed)
+ |> put_change(:ap_id, ap_id)
+ |> put_change(:following, [followers])
+ else
+ changeset
+ end
+ end
+