1class Admin::PetitionsController < Admin::AdminController
  
2  before_action :redirect_to_show_page, only: [:index], if: :petition_id?
  
3  before_action :fetch_petitions, only: [:index]
  
4  before_action :fetch_petition, only: [:show, :resend]
  
5
  
6  rescue_from ActiveRecord::RecordNotFound do
  
7    redirect_to admin_root_url, alert: "Sorry, we couldn't find petition #{params[:id]}"
  
8  end
  
 9
  
10  def index
  
11    respond_to do |format|
  
12      format.html
  
13      format.csv { render_csv }
  
14    end
  
15  end
  
16
  
17  def show
  
18    respond_to do |format|
  
19      format.html
  
20    end
  
21  end
  
22
  
23  def resend
  
24    GatherSponsorsForPetitionEmailJob.perform_later(@petition, Site.feedback_email)
  
25    redirect_to admin_petition_url(@petition), notice: :email_resent_to_creator
  
26  end
  
27
  
28  protected
  
29
  
30  def petition_id?
  
31    /^\d+$/ =~ params[:q].to_s
  
32  end
  
33
  
34  def redirect_to_show_page
  
35    redirect_to admin_petition_url(params[:q].to_i)
  
36  end
  
37
  
38  def scope
  
39    if params[:match] == "none"
  
40      Petition.untagged
  
41    elsif params[:tags].present?
  
42      if params[:match] == "all"
  
43        Petition.tagged_with_all(params[:tags])
  
44      else
  
45        Petition.tagged_with_any(params[:tags])
  
46      end
  
47    else
  
48      Petition.all
  
49    end
  
50  end
  
51
  
52  def fetch_petitions
  
53    @petitions = scope.search(params)
  
54  end
  
55
  
56  def fetch_petition
  
57    @petition = Petition.find(params[:id])
  
58  end
  
59
  
60  def render_csv
  
61    set_file_headers
  
62    set_streaming_headers
  
63
  
64    #setting the body to an enumerator, rails will iterate this enumerator
  
65    self.response_body = PetitionsCSVPresenter.new(@petitions).render
  
66  end
  
67
  
68  def set_file_headers
  
69    headers["Content-Type"] = "text/csv"
  
70    headers["Content-Disposition"] = "attachment; filename=#{csv_filename}"
  
71  end
  
72
  
73  def set_streaming_headers
  
74    #nginx doc: Setting this to "no" will allow unbuffered responses suitable for Comet and HTTP streaming applications
  
75    headers['X-Accel-Buffering'] = 'no'
  
76    headers["Cache-Control"] ||= "no-cache"
  
77    headers.delete("Content-Length")
  
78  end
  
79
  
80  def csv_filename
  
81    "#{@petitions.scope.to_s.dasherize}-petitions-#{Time.current.to_s(:number)}.csv"
  
82  end
  
83end