DatatableState

Installation

Add this line to your application's Gemfile:

gem 'datatable_state'

Then execute:

bundle

Copy migrations and run them:

rake datatable_state:install:migrations
rake db:migrate

Add routes:

# config/routes.rb
mount DatatableState::Engine => "/datatable_states"

Add helpers:

# app/controllers/application_controller.rb
helper DatatableState::ApplicationHelper

Javascripts:

//app/assets/javascripts/application.js
//= require datatable_state/store

Insert callbacks and utilites into DataTables definition:

{
  ...
  "pageLength": datatableStateDefaultPageLength(),
  "stateLoadCallback": datatableStateLoad,
  "stateSaveCallback": datatableStateSave,
  "stateSaveParams": datatableStateSkipPerColumn,
  ...
}

Use saved_display_length helper with server-side datatable

<table class="datatable datatable_ajax" ... <%= saved_display_length %>>