Rails - Aug 2013 - Adwords API get keywords with ruby on rails

Hello,

I took the ruby on rails example, and tried to add to it a view which is 
displaying the keywords from an AdGroup, I am able to get the keywords, and 
the total no of keywords from a campaign but I don''t know why I can not
display them in the view.

keyword model:

class Keyword
  attr_reader :id
  attr_reader :criteriaType
  attr_reader :keywordText

  def initialize(api_campaign)
    @id = api_campaign[:id]
    @criteriaType = api_campaign[:criteriaType]
    @keywordText = api_campaign[:keywordText]
  end

  def self.get_keywords_list(response)
    result = {}
    if response[:entries]
      response[:entries].each do |api_keyword|
        keyword = Keyword.new(api_keyword)
        result[keyword.id] = keyword
      end
    end
    return result
  end
end

keyword_controller
class KeywordController < ApplicationController

  PAGE_SIZE = 50

  def index()
    @selected_account = selected_account
    if @selected_account
      response = request_keywords_list(''AdGroupID'')
      if response
        @keywords = Keyword.get_keywords_list(response)
        @keyword_count = response[:total_num_entries]
      end
    end
  end

  private

  def request_keywords_list(ad_group_id)
   logger.debug ad_group_id
    api = get_adwords_api()
    service = api.service(:AdGroupCriterionService, get_api_version())
    selector = {
      :fields => [''Id'', ''CriteriaType'',
''KeywordText''],
      :ordering => [{:field => ''Id'', :sort_order =>
''ASCENDING''}],
      :predicates => [{:field => ''AdGroupId'', :operator
=> ''EQUALS'',
:values => [ad_group_id]},
   {:field => ''CriteriaType'', :operator =>
''EQUALS'', :values =>
[''KEYWORD'']}],
      :paging => {:start_index => 0, :number_results => PAGE_SIZE}
    }
    result = nil
    begin
      result = service.get(selector)
      logger.debug service.get(selector)
    rescue AdwordsApi::Errors::ApiException => e
      logger.fatal("Exception occurred: %s\n%s" % [e.to_s, e.message])
      flash.now[:alert]           ''API request failed with an error,
see logs for details''
    end
    return result
  end
end

keyword/index.html.erb

<h1>Keywords list</h1>

<% if @selected_account.nil? %>
  <div class="notice">No account selected!</div>

<% else %>

  <% if @keywords.nil? or @keywords.empty? %>
    <ul><li>No keywords available.</ul>
  <% else %>
    <ul><li>Total number of keywords: <%= @keyword_count
%></ul>
    <table>
      <tr>
        <th>ID
        <th>KeywordText
        <th>CriteriaType
    <% @keywords.each do |id, keyword| %>
      <tr>
        <td><%= keyword.id %>
        <td><%= keyword.keywordText %>
        <td><%= keyword.criteriaType %>

    <% end %>
    </table>
  <% end %>


If someone can help me with some pointers, I''ll be grateful.

So I discovered what I did wrong, 

def self.get_keywords_list(response)
    result = {}
    if response[:entries]
      response[:entries].each do |api_keyword|
        keyword = Keyword.new(api_keyword)
        result[keyword.id] = keyword
      end
    end
    return result
  end

In my response loop I need to have something like 
[keyword[:criterion][:id],
 keyword[:criterion][:type],
keyword[:criterion][:text]]

but I am such a noob, that I don''t know how to implement that in my
code.

Thank you

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