star voting system for proposals

app/assets/javascripts/osem.js

@@ -60,6 +60,12 @@ $(function() {
     $(".comment-reply").hide();
     $(".user-details-popover").popover();
     $("#comments-div").hide();
+    
+    $("#votes-div").hide();
+    $("#votes-link").click(function(){
+      $("#votes-div").toggle();
+      return false;
+    });
 });
 
 function word_count(text, divId, maxcount) {

app/assets/stylesheets/osem.css

@@ -5,6 +5,23 @@
     height: 100%;
     /* The html and body elements cannot have any padding or margin. */
 }
+/* Styling for voting on proposals*/
+.myrating.bright { background-image: url(../assets/star-bright.png); }
+.myrating.glow { background-image: url(../assets/star-glow.png); }
+.othersrating.bright { background-image: url(../assets/star-bright.png); }
+.avgrating.bright { background-image: url(../assets/star-bright.png); }
+.avgrating {
+  background: url(../assets/star.png) 0 0;
+  width: 26px;
+  height: 26px;
+  display: block;
+}
+.myrating, .othersrating {
+  background: url(../assets/star.png) 0 0;
+  width: 26px;
+  height: 26px;
+  float: left;
+}
 
 /* Wrapper for page content to push down footer */
 #wrap {

app/controllers/admin/events_controller.rb

@@ -26,6 +26,7 @@ class Admin::EventsController < ApplicationController
     @event_types = @conference.event_types
     @comments = @event.root_comments
     @comment_count = @event.comment_threads.count
+    @ratings = @event.votes.includes(:person)
   end
 
   def edit
@@ -76,4 +77,18 @@ class Admin::EventsController < ApplicationController
     expire_page :controller => '/schedule', :action => :index
     redirect_to(admin_conference_events_path(:conference_id => @conference.short_title), :notice => "Updated state")
   end
+  
+  def vote
+    event = Event.find(params[:id])
+    
+    if votes = current_user.person.votes.find_by_event_id(params[:id])
+      votes.update_attributes(:rating => params[:rating])
+    else
+      @myvote = event.votes.build
+      @myvote.person = current_user.person
+      @myvote.rating = params[:rating]
+      @myvote.save
+    end
+    redirect_to admin_conference_event_path(@conference.short_title, event)
+  end
 end

app/models/event.rb

@@ -9,8 +9,10 @@ class Event < ActiveRecord::Base
   has_many :event_attachments, :dependent => :destroy
   has_many :people, :through => :event_people
   has_many :speakers, :through => :event_people, :source => :person, :conditions => {"event_people.event_role" => "speaker"}
+  has_many :votes
+  has_many :voters, :through => :votes, :source => :person
   belongs_to :event_type
-  
+
   has_and_belongs_to_many :registrations
 
   belongs_to :track
@@ -62,6 +64,19 @@ class Event < ActiveRecord::Base
     end
   end
 
+  def voted?(event, person)
+    event.votes.where("person_id = ?", person).first
+  end
+  
+  def average_rating
+    @total_rating = 0
+    self.votes.each do |vote|
+      @total_rating = @total_rating + vote.rating
+    end
+    @total = self.votes.size
+    number_with_precision(@total_rating / @total.to_f, :precision => 2, :strip_insignificant_zeros => true)
+  end
+
   def submitter
     result = self.event_people.where(:event_role => "submitter").first
     if !result.nil?

app/models/person.rb

@@ -8,6 +8,8 @@ class Person < ActiveRecord::Base
   has_many :event_people, :dependent => :destroy
   has_many :events, :through => :event_people, :uniq => true
   has_many :registrations, :dependent => :destroy
+  has_many :votes, :dependent => :destroy
+  has_many :voted_events, :through => :votes, :source => :events
 
   validates :first_name, :presence => true
   validates :last_name, :presence => true

app/models/vote.rb

@@ -0,0 +1,10 @@
+class Vote < ActiveRecord::Base
+  attr_accessible :rating
+  
+  belongs_to :person
+  belongs_to :event
+  
+  delegate :first_name, :to => :person
+  delegate :last_name, :to => :person
+  delegate :public_name, :to => :person
+end

app/views/admin/events/_proposal.html.haml

@@ -142,7 +142,10 @@
             %td
               = link_to "Delete", conference_proposal_event_attachment_path(@conference.short_title, @event.id, a.id),
                 :method => :delete, :confirm => "Are you sure you want to delete this attachment?  It's permanant!"
-
+.row-fluid
+  = link_to "Votes (#{@event.voters.length})", "#", :id => "votes-link"
+  #votes-div
+    = render :partial => 'voting'
 .row-fluid
   = link_to "Comments (#{@comment_count})", "#", :id => "event-comment-link"
   #comments-div
@@ -156,4 +159,4 @@
         %br
         - @comments.each do |comment|
           %div
-            = raw format_comments(comment)
+            = raw format_comments(comment)

app/views/admin/events/_voting.html.haml

@@ -0,0 +1,47 @@
+%table#myeventratings{:style=>"width: 20%"}
+  %tr
+    %td
+      %b You voted:
+    %td
+      - @conference.call_for_papers.rating.times do |counter|
+        - voted = @event.voted?(@event, current_user.person)
+        - if voted && voted.rating == counter+1
+          = link_to "", vote_admin_conference_event_path(@conference.short_title, @event, :rating => counter+1), :remote => true, :id =>"label#{counter+1}", :class => "myrating", :voted => true
+        - else
+          = link_to "", vote_admin_conference_event_path(@conference.short_title, @event, :rating => counter+1), :remote => true, :id =>"label#{counter+1}", :class => "myrating"
+      %br
+
+  - if @ratings.length > 0
+    - @ratings.each do |rate|
+      - unless rate.person_id == current_user.person.id
+        %tr
+          %td
+            = rate.first_name
+            = rate.last_name
+          %td
+            - @conference.call_for_papers.rating.times do |counter|
+              - voted = @event.voted?(@event, rate.person)
+              - if voted && voted.rating == counter+1
+                = label_tag "label#{counter+1}", "", :class => "othersrating", :voted => true
+                = javascript_tag "$('label[voted=true]').prevAll().andSelf().addClass('bright');"
+              - else
+                = label_tag "label#{counter+1}", "", :class => "othersrating"
+:javascript   
+  $(function () {
+    var checkedId = $("a[voted='true']").attr('id');
+    $('a[id=' + checkedId + ']').prevAll().andSelf().addClass('bright');
+  });
+
+  $(".myrating").hover(
+    function() {    // mouseover
+        $(this).prevAll().andSelf().addClass('glow');
+    },
+    function() {  // mouseout
+        $(this).siblings().andSelf().removeClass('glow');
+    }
+  );
+
+  $(".myrating").click(function() {
+    $(this).siblings().removeClass("bright");
+    $(this).prevAll().andSelf().addClass("bright");
+  });

app/views/admin/events/index.html.haml

@@ -115,6 +115,18 @@
               = event.id
             %td
               =link_to event.title, admin_conference_event_path(@conference.short_title, event)
+              - if event.average_rating.to_f > 0 
+                Rating: (#{event.average_rating}/#{@conference.call_for_papers.rating})
+              - else
+                Rating: (0/#{@conference.call_for_papers.rating})
+
+              - @conference.call_for_papers.rating.times do |counter|
+                - if event.average_rating.to_f.round == counter+1
+                  = label_tag "label_rating", "", :class => "avgrating", :avgrate => true
+                  = javascript_tag "$('label[avgrate=true]').prevAll().andSelf().addClass('bright');"
+                - else
+                  = label_tag "label_rating", "", :class => "avgrating"
+
             - if event.submitter.registrations.count < 1 
               - bgcolor="#F7819F"
             - else 

app/views/admin/events/vote.js.erb

@@ -0,0 +1 @@
+$('table#myeventratings').replaceWith("<%= escape_javascript(render :partial => 'voting') %>");

config/routes.rb

@@ -40,6 +40,7 @@ Osem::Application.routes.draw do
           post :comment
           put :update_state
           put :update_track
+          get :vote
         end
         resource :speaker, :only => [:edit, :update]
       end

db/migrate/20130815085420_create_votes.rb

@@ -0,0 +1,15 @@
+class CreateVotes < ActiveRecord::Migration
+  def up
+    create_table :votes do |t|
+      t.references :person
+      t.references :event
+      t.integer :rating
+
+      t.timestamps
+    end
+  end
+
+  def down
+    drop_table :votes
+  end
+end

db/migrate/20130815201317_add_rating_to_call_for_papers.rb

@@ -0,0 +1,5 @@
+class AddRatingToCallForPapers < ActiveRecord::Migration
+  def change
+    add_column :call_for_papers, :rating, :integer
+  end
+end

db/migrate/20130815201511_add_rating_desc_to_call_for_papers.rb

@@ -0,0 +1,5 @@
+class AddRatingDescToCallForPapers < ActiveRecord::Migration
+  def change
+    add_column :call_for_papers, :rating_desc, :text
+  end
+end