gistfile1.rb

class StatisticsController < ApplicationController

  layout "statistics"

  def search
    params.merge!({q: {id_eq: 0}}) if params[:q].blank? #so we avoid displaying all the elements at the first load...
    @search = OrganizationalUnit.search(params[:q])

    if @search.result.length > 0 
      @organizational_unit_paginated = @search.result(distinct: true).page(params[:page])
      @organizational_units = OrganizationalUnit.items_list(@organizational_unit_paginated.map(&:id))

      @stats = {}
      result1 = @search.result.group_by(&:organizational_unit_kind_id).reject{|k,v|  k == :nil || k == nil} 
      ok = OrganizationalUnitKind.where{id.in(result1.keys)}.all 
      @stats[:organizational_unit_kinds] = result1.inject({}){|h,(k,v)| h.merge({ok.select{|o| o.id == k.to_i}.try(:first).try(:name) => v})} 

      result1 = @search.result.group_by(&:brand_id).reject{|k,v| k == :nil || k == nil} 
      ok = Brand.where{id.in(result1.keys)}.all 
      @stats[:brands] = result1.inject({}){|h,(k,v)| h.merge({ok.select{|o| o.id == k.to_i}.try(:first).try(:name) => v})} 

    end

  end

  def overview
  	@organizational_unit_kinds = OrganizationalUnitKind.includes([:brands,:categories, :organizational_units]).all
  end

end