Mongoid: Data Table

Makes it easy to ship data to a jQuery DataTable from Mongoid.

Quick example:

Javascript

$(".providers-data-table").dataTable({
  "bJQueryUI"       : true,
  "bProcessing"     : true,
  "bAutoWidth"      : false,
  "sPaginationType" : "full_numbers",
  "aoColumns"       : [{"sType" : "html"}, null, null, null, null],
  "aaSorting"       : [[0, 'asc'], [1, 'asc']],
  "bServerSide"     : true,
  "sAjaxSource"     : "/providers.json"
}).fnSetFilteringDelay();

Note: the fnSetFilteringDelay() call isn't required but highly recommended: http://datatables.net/plug-ins/api#fnSetFilteringDelay

Model

class Provider

  include Mongoid::Documenta
  include Mongoid::DataTable

  ## fields ##
  field :name
  field :fein
  field :country
  field :state

  ## associations ##
  referenced_in :category

  ## data_table ##
  data_table_options.merge!({
    :fields => %w(name fein category country state),
    :searchable => %w(name fein),
    :dataset => lambda do |provider|
      {
        0 => "<%= link_to(provider.name, provider) %>",
        1 => provider.fein,
        2 => provider.category.name,
        3 => provider.country,
        4 => provider.state,
        :DT_RowId => provider._id
      }
    end
  })

end

Controller (InheritedResources::Base)

class PrividersController < InheritedResources::Base

  respond_to :json, :only => :index

  protected

  def collection
    @providers ||= end_of_association_chain.to_data_table(self)
  end

end

Controller (ActionController::Base)

class ProvidersController < ApplicationController

  def index
    respond_to do |format|
      format.html
      format.json do
        render :json => Provider.to_data_table(self)
      end
    end
  end

end

View (HAML)

%table.providers-data-table
  %thead
    %tr
      %th Name
      %th FEIN
      %th Category
      %th County
      %th State

  %tbody

Patches welcome, enjoy!