DataListHelper

data_list_helper.rb

module DataListHelper
  def list_headers(args=[])
    args    = Array.new(args)
    columns = []
    args.map { |o| columns << content_tag(:li, o.split(":").first, :style=>"width:#{o.split(":").second}px;") }
    content_tag(:ul, columns.join(" ").html_safe, :class=>"list-headers")
  end

  def data_list_for(object, headers=[], &block)
    if object.is_a? Array
      if object.length == 0
        list_headers(headers).concat(content_tag(:strong, "<br />No records found".html_safe))
      else
        arr = []
        object.each do |o|
          arr << content_tag(:li, content_tag(:ul, capture(DataListBuilder.new(o), &block), :id=>o.id, :class=>"list-row #{cycle('odd', 'even')}"))
        end
        data_list_total_records(object).concat(content_tag(:ol, content_tag(:li, list_headers(headers)) + arr.join().html_safe, :class=>"data-list")).concat(data_list_pagination(object)).html_safe
      end
    else
      list_headers(headers).concat(content_tag(:strong, " <br />Not available."))
    end
  end

  def data_list_pagination(array)
    will_paginate array
  end

  def data_list_total_records(array)
    content_tag(:div, page_entries_info(array).html_safe, :class=>"total-records")
  end

  class DataListBuilder
    include ActionView::Helpers::TagHelper
    include ActionView::Helpers::CaptureHelper
    include ActionView::Helpers::UrlHelper
    attr_accessor :object, :output_buffer

    def initialize(object)
      @object, @output_buffer = object, nil
    end

    def column (&block)
      if block_given?
        content_tag(:li, block.call(self))
      else
        content_tag(:li, "")
      end
    end

    def options_column(&link_block)
      if block_given?
        content_tag(:li, content_tag(:dl, "<dt><a href='#'>&nbsp;</a></dt><dd><ul>#{link_block.call(self)}</ul></dd>".html_safe, :class=>'options'))
      else
        content_tag(:li, "")
      end
    end

    def link_item(title, url, options={})
      content_tag :li, link_to(title, url, options)
    end
  end
end

data_list_helper_use.rb

<%= data_list_for @leads, [" :10", "Age:30", "Contact:140", "Phone:140", "Email:180", "Company:100", ""] do |l| %>
    <%= l.column { |c| link_to "&nbsp;".html_safe, "leads/details/#{c.object.id}", :class=>:plus, :remote=>true } %>
    <%= l.column { |c| c.object.age } %>
    <%= l.column { |c| c.object.contact.complete_name } %>
    <%= l.column { |c| c.object.contact.phones.blank? ? "-" : c.object.contact.phones.first.phone_number } %>
    <%= l.column { |c| c.object.contact.emails.blank? ? "-" : c.object.contact.emails.first.email } %>
    <%= l.column { |c| c.object.company.title } %>
    <%= l.options_column do |c| %>
        <%= c.link_item 'Show', lead_path(c.object) %>
        <%= c.link_item 'Edit', edit_lead_path(c.object) %>
        <%= c.link_item 'New Note', "leads/#{c.object.id}/notes/new", :class=>"display-newxdoc", :id=>c.object.id %>
        <%= c.link_item 'Create Opportunity', new_lead_opportunity_path(c.object) %>
    <% end %>
<% end %>