[selectricity] / app / controllers / election_controller.rb

class ElectionController < ApplicationController
  model :raw_voter_list, :voter, :vote, :candidate
  layout 'vb'

  before_filter :login_required

  ## methods for displaying, creating,
  ## and manipulating election overview data
  ####################################################################

  def new
    @election = Election.new
  end
  
  def create_election
    @election = Election.new(params[:election])
    
    # default options
    @election.user = session[:user]
    @election.anonymous = 1
    @election.startdate = Time.now

    if @election.save
      flash[:notice] = 'Election was successfully created.'
      redirect_to :action => 'edit_candidates', :id => @election.id
    else
      render :action => 'new'
    end
  end
  
  # add filter to verify that the person working on or looking at
  # something is the owner
  def edit
    @election = Election.find(params[:id])
  end

  def show
    @election = Election.find(params[:id])
  end

  def update
    @election = Election.find(params[:id])
    if @election.update_attributes(params[:election])
      flash[:notice] = 'Election was successfully updated.'
      redirect_to :action => 'show', :id => @election
    else
      render :action => 'edit'
    end
  end

  def destroy
    election = Election.find(params[:id]).destroy
    redirect_to :action => 'list'
  end

  # methods fod display, adding, deleting, and manipulating candidate
  # information for elections
  ####################################################################
  def edit_candidates
    @election = Election.find( params[:id] )
  end

  def add_candidate
    @election = Election.find(params[:id])
    @candidate = Candidate.new(params[:candidate])
    
    if @candidate.save
      @election.candidates << @candidate
      @candidate = Candidate.new
      redirect_to :action => 'edit_candidates', :id => @election.id
    else
      render :action => 'edit_candidates', :id => @election.id
    end
  end
  
  def delete_candidate
    candidate = Candidate.find( params[:id] )
    candidate.destroy
  end

  def lessinfo_candidate
    @show_details = false
    @candidate = Candidate.find( params[:id] )
    render :partial => 'candidate_line'
  end

  def moreinfo_candidate
    @show_details = true
    @candidate = Candidate.find( params[:id] )
    render :partial => 'candidate_line'
  end

  def edit_candidate
    @candidate = Candidate.find( params[:id] )
    @election = @candidate.election
  end

  def update_candidate
    @candidate = Candidate.find(params[:id])

    if @candidate.update_attributes(params[:candidate])
      flash[:notice] = 'Candidate information was successfully updated.'
      redirect_to :action => 'edit_candidates', :id => @candidate.election
    else
      render :action => 'edit_candidates'
    end
  end

  def candidate_picture
    candidate = Candidate.find( params[:id] )
    send_data( candidate.picture_data,
               :filename => candidate.picture_filename,
               :type => candidate.picture_type,
               :disposition => 'inline' )
  end

  ## methods for displaying, adding, deleting, and manipulating voters
  ## for a particular election
  ####################################################################
  def new_voters
    @election = Election.find( params[:id] )
    if params.has_key?[:raw_voter_list]
      process_incoming_voters( params[:raw_voter_list] )
    end
    @raw_voter_list = RawVoterList.new

  end
  
  def edit_voters
    @election = Election.find( params[:id] )
    if params.has_key?( :raw_voter_list )
      process_incoming_voters( params[:raw_voter_list] )
    end

    @raw_voter_list = RawVoterList.new
  end
  
  def delete_voter
    voter = Voter.find( params[:id] )
    voter.destroy
  end
  
  ## methods for computing and printing results
  ####################################################################
  def results
    @election = Election.find( params[:id] )
    votes = []

    @election.voters.each do |voter|
      if voter.vote and voter.vote.confirmed?
        votes << voter.vote.rankings.sort.collect {|vote| vote.candidate_id}
      end
    end
    
    @voteobj = CloneproofSSDVote.new(votes)
    @resultobj = @voteobj.result
    @winners = @resultobj.winners
    
    @candidates_by_id = {}
    @election.candidates.each {|cand| @candidates_by_id[cand.id] = cand}
  end
  
  def detailed_results
   
    self.results

    @voter_list = []
    @vote_list = []
    @election.voters. each do |voter|
      if voter.vote and voter.vote.confirmed?
        @voter_list << voter.email
        @vote_list << voter.vote
      end
    end

    @vote_list.sort!
    @vote_list.sort! { |a,b| a.token <=> b.token }
  end

  ## private methods
  ####################################################################
  private

    def process_incoming_voters(raw_voter_list)
      incoming_voters = RawVoterList.new( raw_voter_list )

      unless incoming_voters.entries.empty?
        incoming_voters.each do |new_voter|

          if incoming_voters.email == 0
            new_voter.contacted = 1
          elsif incoming_voters.email == 1
            email_voter( new_voter )
            new_voter.contacted = 1
          else
            new_voter.contacted = 0
          end
        
          # the new voter should be in good shape. save add to the election
          new_voter.save
          @election.voters << new_voter
        end
      end
 
      # reset the next time to have a the same default value for emailing
      @raw_voter_list = RawVoterList.new
      @raw_voter_list.email = incoming_voters.email
    end

    def email_voter
    end

end