gistfile1.txt

#ERROR 

ActionView::Template::Error (undefined method `voter_emotions' for nil:NilClass):
    1: .subject_box{"data-emotions" => subject.voter_emotions.map{|e| e.name}.join(' ')}
    2: 
    3:   %p.title
    4:     %a{:href => "#"} #{subject.title}
  app/views/profile/_subject_box.haml:1:in `_app_views_profile__subject_box_haml__657605790416744297_2168763000'
  app/controllers/profile_controller.rb:79:in `fetch_subject'

///

#profile_controller.rb

class ProfileController < ApplicationController
  before_filter :authenticate_user!

  # Home page of the user
  def home
    @user = current_user
    followee_ids = current_user.followee_ids_accepted
    @subjects = posted_by_user_id(followee_ids << current_user.id)
    @subjects_pagination_data = @subjects.shift
    @filter_emotions = Emotion.all
    @bond_requests = Bond.find_all_by_followee_id_and_status(current_user.id, 'pending')

    respond_to  do |format|
      format.html {
        if request.xhr?
          render 'home.ajax', :layout => false
        end
      }
    end
  end
  
  # profile page of user, when viewed by other users
  def view_profile
    #if params[:username]
    @user = User.find_by_nickname(params[:username])
    @subjects = posted_by_user_id(@user.id)
    @filter_emotions = Emotion.all
  end

  def follow_or_unfollow
    user = User.find(params[:user_id])
    if current_user.follows?(user)
      current_user.unfollow(user)
      @action = 'unfollowed'
    else
      current_user.follow(user)
      @action = 'followed'
    end
    render :json => {:action => @action}
  end


  def user_votes_via_json
      
    @user = current_user
    @content_voted_on = @user.votes.group(:content_id).select([:url, :content_id])
    
    if params[:filter_emotions]
      filter_emotions = params[:filter_emotions].split(",")
      @content_voted_on = @content_voted_on.find(:all,
        :conditions => ['emotion IN (?)',filter_emotions ])
    end
    render :json => @content_voted_on
  end

  def fetch_subject
    require 'open-uri'
    
    unless params[:url] 
      return render :json => {:error => 'empty url'}
    end

    @subject = []
    @subject << Subject.find_or_create_by_url(params[:url]) do |subject|
      document = Hpricot(open(params[:url]), 'User-Agent' => 'Emot.io/0.1')

      page = {}
        subject.title = (document/"title").first.try(:inner_html)
        subject.description = (document/"meta[subject.name=description]").first.try(:[], :content)
        subject.description ||= ActionController::Base.helpers.strip_tags((document/"p").first.try(:inner_html))
        subject.title ||= nil
        subject.description ||= nil

    end

    @subject.first.via = current_user
    @user = current_user

    render :partial => 'subject_box', :locals => {:subject => @subjects}
  end


  # Displayes subjects the user(s) have voted on
  # @param user_ids [Array] of IDs of the users the subjects will be fetched for
  # @return [Subject] array of the subjects
  def posted_by_user_id(user_ids)
    votes = Vote.select('DISTINCT ON (subject_id) subject_id, *').order('subject_id,
        created_at DESC').where(:user_id => user_ids).page(params[:page]).per(2)
    posts = votes.map {|vote|
      subject = vote.subject
      subject.via = vote.user
      subject.voter_emotions = subject.emotions_felt_by_user(vote.user)
      subject.voter_time_last_voted = vote.updated_at
      subject
    }

    posts.unshift(votes)
  end
  
end