NestedSortable

This plugin adds drag and drop functionality using json.

Credits

Almost all the code of this plugin originates from: code.google.com/p/nestedsortables/ so the credits should go there.

Installation

To install use:

git@github.com:bterkuile/nested_sortable.git

Done!

Assumptions

• You are using jQuery, this will not work with another library

• You have git installed

• You use this on your own risk

Simple setup example

There are some assumptions/defaults for this plugin. Based on these I will give a simple setup of an example use.

rails g scaffold Page title:string parent_id:integer position:integer

Make sure that the position has a default value, otherwise errors may occur

rake db:migrate

in app/controllers/pages_controller :

nested_sortable_data_source_for :page, :columns => [[:title, 'My title'], [:created_at, 'Created:']]

in your layout in the head section (haml style):

= include_nested_sortable_if_needed

config/routes.rb

resources :pages do
  collection do
    get :order
    post :order
  end
end

app/views/pages/index.html.haml

In your view (assuming jQuery is already used in the project, and haml) :javascript

$(function(){
  $('#pages_tree').NestedSortableWidget({
    loadUrl: "#{url_for(:action => :order, :format => :json)}",
    saveUrl: "#{url_for(:action => :order, :format => :json)}",
    handle: true,
    text:{
      handle: "[drag]",
      saveButton: "Update hierarchy"
    },
    colsWidth: [300]
  });
});

And now you’re done