sample.rb

module REXMLInspector
  def to_obj_inspector kw
    [
      {
        type: :tree,
        data: get_tree(self)
      }
    ]
  end

  def get_tree elems
    ary = []
    elems.each_element{|elem|
      hash = {}
      key = elem.name
      childs = []
      if elem.attributes.size > 0
        attrs = {}
        elem.attributes.each_attribute{|attribute|
          attrs[attribute.name] = attribute.value
        }
        childs << attrs
      end
      if elem.has_elements?
        childs.push *get_tree(elem)
      end
      if childs.size == 0
        hash[key] = elem.text
      else
        if elem.text && elem.text.strip != ""
          key = "#{key} #{elem.text}"
        end
        hash[key] = childs
      end
      ary << hash
    }
    ary
  end
end

begin
  require 'rexml'
  REXML::Document.prepend REXMLInspector
rescue LoadError
end

module ActiveRecordInspector
  def to_obj_inspector kw
    ary = self.to_a
    table_data = ary[kw['offset'], kw['pageSize']].map{|elem| elem.attributes}
    x_keys = []
    y_keys = []
    table_data.first.each{|key, val|
      if key == 'id' || !val.is_a?(Numeric)
        x_keys << key
      else
        y_keys << key
      end
    }
    [
      {
        type: :table,
        data: table_data,
        paginate: {
          totalLen: ary.size
        }
      },
      {
        type: :barChart,
          data: table_data,
          xAxisKeys: x_keys,
          yAxisKeys: y_keys
      },
      {
        type: :lineChart,
          data: table_data,
          xAxisKeys: x_keys,
          yAxisKeys: y_keys
      }
    ]
  end
end

begin
  require 'active_support'
  ActiveSupport.on_load(:active_record) do
    ActiveRecord::Relation.include ActiveRecordInspector
  end
rescue LoadError
end