I’m working on an application that requires me to fill a model through several pages.

Hence, I need to validate each portion of attributes presented in each form.

I’ve found a way to do so, but I’m wondering if this seems correct, and if I could improve my code ?

def general
  @user = User.new
end

def save_general
  session[:user] ||= {}
  @user = User.new(params[:user].permit(:first_name))
  
  #Apparently, I need to run this once, to populate the errors array.
  @user.valid?

  unless @user.errors[:first_name].empty?
    render :general, status: :unprocessable_entity
  else
    session[:user][:first_name] = params[:user][:first_name]
  end
end