Jquery Tokens - custom tokens on the fly

jquery-tokens-custom-tokens

Use this fork https://github.com/kusmierz/jquery-tokeninput/
See this discussion about idea http://railscasts.com/episodes/258-token-fields?view=comments#comment_152978


  #model (idea 100% stolen from ryanb)
  def author_tokens=(ids)
    ids.gsub!(/CREATE_(.+?)_END/) do
      Author.create!(:name => $1).id
    end
    self.author_ids = ids.split(",")
  end  

  # jquery.tokeninput.js

  # line 598, change this line:
  # var this_token = settings.tokenFormatter(item)
  # to this:
  # var this_token = settings.tokenFormatter(item).replace('Add: ', '');

  # comment line 1028 to
  # //if(settings.allowCustomEntry == false) {
  # and also comment ending bracket to
  # //}

  # add  allowCustomEntry: true to your book_author_tokens.js file
  $(function() {
  $("#book_author_tokens").tokenInput("/authors.json", {
    crossDomain: false,
    prePopulate: $("#book_author_tokens").data("pre"),
    theme: "facebook",
    allowCustomEntry: true
  });
});
  

  # controller
  def index
    @authors = Author.where("name like ?", "%#{params[:q]}%")
    results = @authors.map(&:attributes)
    
    results << {:name => "Add: #{params[:q]}", :id => "CREATE_#{params[:q]}_END"}

    respond_to do |format|
      format.html
      format.json { render :json => results }
    end
  end