+ def upgrade_changeset(struct, params \\ %{}) do
+ struct
+ |> cast(params, [:bio, :name, :info, :follower_address, :avatar])
+ |> unique_constraint(:nickname)
+ |> validate_format(:nickname, ~r/^[a-zA-Z\d]+$/)
+ |> validate_length(:bio, max: 5000)
+ |> validate_length(:name, max: 100)
+ end
+