inspect_helper.rb

###
# helper_name:inspect_helper
# author: Whien_Liou
# time: 2014/07/23
#
# usage
# 請在增加 config/initializers/inspect_helper.rb
# 加入下列幾行代碼
# 在 controller 使用
# 
# @product = Product.all
# render html: @product.inspect_helper_model 即可
# ..
# Peace :D
#
# 對了！記得要安裝 bootstrap-sass XD

require 'action_view'
module ActiveRecord
  module Core

    include ActionView::Helpers::FormTagHelper

    def inspect_helper_model
      result = ""
      inspection = if defined?(@attributes) && @attributes
                     self.class.column_names.collect do |name|
                       if has_attribute?(name)
                         %{<h3><span class="label label-success">#{name}</span></h3><p class="text-center">#{attribute_for_inspect_helper(name)}</p>}
                       end
                     end
                   else
                     %{<p>not initialized</p>}
                   end
      inspection.each do |value|
        result << %[<td class="text-center">#{value}</td>]
      end
      inspect_helper_table_create(%{<h1 class="text-center"><span class="label label-danger">##{self.class}</span></h1>}, result).html_safe
    end

    def inspect_helper_table_create(title_attr, tag_result)
      %{#{create_css}<table class="table table-hover">#{title_attr}#{tag_result}</table>}
    end

  end
end

module ActiveRecord
  # = Active Record Attribute Methods
  module AttributeMethods
    extend ActiveSupport::Concern
    include ActiveModel::AttributeMethods

    def attribute_for_inspect_helper(attr_name)
      read_attribute(attr_name)
    end

  end
end

module ActiveRecord
  class Relation
    def inspect_helper_model
      result = ""
      gsub_reg = /(#<)/
      gsub_reg_last = /(\"\>)/
      entries = to_a.take([limit_value, 11].compact.min).map!(&:inspect)
      #entries[10] = '...' if entries.size == 11

      entries.each do |entry|
        result << "<tr><td>#{entry}</td></tr>"
      end

      tag_result = %{<h1><span class="label label-danger">#{self.class.name}</span></h1><table class="table table-hover">#{result.gsub!(gsub_reg, "").gsub!(gsub_reg_last, "")}</table>}
      %{#{create_css}#{tag_result}}.html_safe
    end
  end
end

def create_css
  %{<link data-turbolinks-track="true" href="/assets/bootstrap.css?body=1" media="all" rel="stylesheet" />}
end