[selectricity] / app / controllers / quickvote_controller.rb

class QuickvoteController < ApplicationController
  layout 'main'
  require_dependency "quick_voter"
  require_dependency "quick_vote"
  require_dependency "vote"
  require_dependency "election"
  
  #############################################################
  # the following methods pertain to creating quickvotes
  #############################################################

  def create
    if params[:quickvote] 
      @quickvote = QuickVote.new(params[:quickvote])
      # store the candidate grabbed through ajax and stored in flash
      @quickvote.candidate_names = flash[:candidate_names]
      @quickvote.description=@quickvote.description
      # try to save, if it fails, show the page again (the flash should
      # still be intact
      if @quickvote.save
        @quickvote = @quickvote.reload
        render :action => 'success'
      else
        flash.keep(:candidate_names)
      end 

    else
      # if we don't have a quickvote param, it means that the person
      # here has not been hitting this page and we can clear any
      # candidate_names list in the flash
      flash.delete(:candidate_names) if flash.has_key?(:candidate_names)
      @quickvote = QuickVote.new
    end
  end

  def add_candidate
    candidate_name = params[:ajax][:newcandidate]
    unless candidate_name.strip.empty?
      if flash.has_key?(:candidate_names) \
        and flash[:candidate_names].instance_of?(Array) 
        unless flash[:candidate_names].index(candidate_name)
          flash[:candidate_names] << candidate_name
        end
     else
       flash[:candidate_names] = [ candidate_name ]
      end
    end
    flash.keep(:candidate_names)
    render_partial 'candidate_list'
  end
 
  #############################################################
  # the following methods pertain to *voting* in the quickvotes
  #############################################################

  def index
    @election = QuickVote.ident_to_quickvote(params[:ident])
    # if the person has specified an election, we show them the voting
    # page. otherwise, we redirect back to main the page
    if @election
      # look to see that the voter has been created and has voted in
      # this election, and has confirmed their vote
      @voter = QuickVoter.find(:all,
        :conditions => ["session_id = ? and election_id = ?",
                        session.session_id, @election.id])[0]

      # if the voter has not voted we destroy them
      if @voter and not @voter.voted?
        @voter.destroy
        @voter = nil
      end

      # if the voter does not exist or has has been destroyed, lets
      # create a new one
      unless @voter
        # create a new voter and populate it
        @voter = QuickVoter.new
        @voter.election = @election
        @voter.session_id = session.session_id
              
        # create new vote and make it the defaulted sorted list
        @voter.vote = Vote.new
              @voter.save
              @voter.vote.set_defaults!
              @voter.reload
      end
    else
      redirect_to :controller => 'site'
    end
  end

  def confirm
    # we need the election to verify that we have the right voter
    election = QuickVote.ident_to_quickvote(params[:ident])

    # find out who the voter is for this election
    @voter = QuickVoter.find(:all,
      :conditions => ["session_id = ? and election_id = ?", 
                      session.session_id, election.id])[0]
  
    if not @voter
      # we have not seen this  voter before. something is wrong, try
      # again
      redirect_to quickvote_url( :ident => params[:ident] ) 
      
    elsif @voter.voted? 
      # this person has already voted, we try again
      flash[:notice] = "You have already voted!"
      redirect_to quickvote_url( :ident => params[:ident] )
      
    else
      # record the ip address for posterity
      @voter.ipaddress = request.env["REMOTE_ADDR"]
      @voter.save
      
      # save the time the vote was made for statistical use
      @voter.vote.time = Time.now
      
      # toggle the confirmation bit      
      @voter.vote.confirm!
     
      @voter.reload
      render :action => 'thanks'
    end
  end
 
  def change
    voter = QuickVoter.find(:all, :conditions => ["session_id = ?",
                                                  session.session_id])[0]
    voter.destroy
    redirect_to quickvote_url( :ident => params[:ident] )
  end

  def sort_candidates
    @vote = Vote.find(params[:id])

    @vote.rankings.each do |ranking|
      ranking.rank = params['rankings-list'].index(ranking.candidate.id.to_s) + 1
      ranking.save
    end
    render :nothing => true
  end
                
  def mapvoters
    @map = GMap.new("map_div_id") 
    @map.control_init(:large_map => true, :map_type => true) 
    center = nil

    QuickVote.ident_to_quickvote(params[:id]).voters.each do |voter|
      next unless voter.ipaddress

      location = GeoKit::Geocoders::IpGeocoder.geocode(voter.ipaddress)
      next unless location.lng and location.lat

      unless center
        center = [location.lat, location.lng]
        @map.center_zoom_init(center, 4)
      end

      marker = GMarker.new([location.lat,location.lng],
                           :title => "Voter",
                           :info_window => (voter.ipaddress or "unknown") \
                                           + "   " + voter.vote.votestring)
      @map.overlay_init(marker)
    end
  end

  ###############################################################
  # the following method pertains to displaying the results of a
  # quickvote
  ###############################################################

  def results
    unless @election = QuickVote.ident_to_quickvote(params[:ident])
      flash[:notice] = "Cannot find quickvote #{params[:ident]}."
      redirect_to :controller => 'site'
      return
    end
    @results = @election.results
    @candidates = {}
    @election.candidates.each {|c| @candidates[c.id] = c}
  end
  
  
end