From 4abd5d218595652fc24531abd226641bffdda610 Mon Sep 17 00:00:00 2001
From: Chrisbr <cbruckmayer@gmx.net>
Date: Mon, 16 Jun 2014 13:51:43 +0200
Subject: [PATCH]  Implements instance dashboard

---
 app/assets/javascripts/dashboard.js           |  70 +--
 app/assets/stylesheets/osem.css               |   8 +
 .../admin/conference_controller.rb            |  62 ++-
 app/models/conference.rb                      | 192 ++++++++-
 .../conference/_doughnut_chart.html.haml      |   6 +
 .../conference/_event_distribution.html.haml  |   8 -
 .../admin/conference/_line_chart.html.haml    |  29 ++
 .../_recent_registrations.html.haml           |  29 +-
 .../conference/_recent_submissions.html.haml  |  35 +-
 .../admin/conference/_recent_users.html.haml  |  35 +-
 .../admin/conference/_registrations.html.haml |  20 -
 .../admin/conference/_submissions.html.haml   |  20 -
 .../admin/conference/_top_boxes.html.haml     |  21 -
 .../admin/conference/_top_submitter.html.haml |  33 +-
 .../conference/_user_distribution.html.haml   |   8 -
 app/views/admin/conference/index.html.haml    | 102 +++--
 app/views/admin/conference/show.html.haml     | 102 ++++-
 spec/models/conference_spec.rb                | 407 ++++++++++++++++++
 18 files changed, 970 insertions(+), 217 deletions(-)
 create mode 100644 app/views/admin/conference/_doughnut_chart.html.haml
 delete mode 100644 app/views/admin/conference/_event_distribution.html.haml
 create mode 100644 app/views/admin/conference/_line_chart.html.haml
 delete mode 100644 app/views/admin/conference/_registrations.html.haml
 delete mode 100644 app/views/admin/conference/_submissions.html.haml
 delete mode 100644 app/views/admin/conference/_top_boxes.html.haml
 delete mode 100644 app/views/admin/conference/_user_distribution.html.haml

diff --git a/app/assets/javascripts/dashboard.js b/app/assets/javascripts/dashboard.js
index a81eec29..f260ef38 100644
--- a/app/assets/javascripts/dashboard.js
+++ b/app/assets/javascripts/dashboard.js
@@ -7,10 +7,9 @@ $(function() {
         clearTimeout(t);
         t = setTimeout(function(){
             $("canvas").each(function(i,el){
-                $(el).attr({
-                    "width":$(el).parent().width(),
-                    "height":$(el).parent().outerHeight()
-                });
+                    $(el).attr({
+                        "width":$(el).parent().width()
+                    });
             });
 
             $(".line_chart").each(function(){
@@ -18,13 +17,11 @@ $(function() {
             });
 
             $(".doughnut_chart").each(function(){
-                draw_doughnut_chart(animate, $(this));
+                if($(this).is(":visible")){
+                    draw_doughnut_chart(animate, $(this));
+                }
             });
 
-            var m = 0;
-            $(".widget").height("");
-            $(".widget").each(function(i,el){ m = Math.max(m,$(el).height()); });
-            $(".widget").height(m);
         }, 30);
     }
 
@@ -57,24 +54,23 @@ $(function() {
         return options;
     }
 
-    function draw_line_chart(animation, $this){
+    function draw_line_chart(animation, $canvas){
         var options = get_animation({}, animation);
-
-        var chart_data = create_dataset($this);
-        var weeks = $this.parent().data('weeks');
+        var chart_data = create_dataset($canvas);
+        var weeks = $canvas.parent().data('weeks');
         var data = {
             labels : weeks,
             datasets : chart_data
         }
 
-        var ctx = $this.get(0).getContext("2d");
+        var ctx = $canvas.get(0).getContext("2d");
         new Chart(ctx).Line(data, options);
     }
 
-    function create_dataset($this){
-        var selected = getSelectedConferences($this);
-        var chart_data = $this.parent().data('chart');
-        var conferences = $this.parent().data('conferences');
+    function create_dataset($canvas){
+        var selected = getSelectedConferences($canvas);
+        var chart_data = $canvas.parent().data('chart');
+        var conferences = $canvas.parent().data('conferences');
         var result = [];
 
         for(var i in conferences){
@@ -89,25 +85,43 @@ $(function() {
         return result
     }
 
-    function getSelectedConferences($this){
-        var name = $this.data('name');
+    function getSelectedConferences($canvas){
+        var name = $canvas.data('name');
         var id = '#' + name + 'Checkboxes'
-        var selected = []
-        $(id + ' input').each(function(){
-            if($(this).is(":checked")) {
-                selected.push($(this).attr('name'));
+        var selected = [];
+        var $checkboxes = $(id + ' input');
+        // If there are checkboxes -> get selected
+        // Else -> use the active conference
+        if($checkboxes.length){
+            $(id + ' input').each(function(){
+                if($(this).is(":checked")) {
+                    selected.push($(this).attr('name'));
+                }
+            });
+        }else{
+            var active = $canvas.parent().data('active');
+            for(i in active){
+                selected.push(active[i].short_title)
             }
-        })
+        }
         return selected;
     }
 
     $('.conferenceCheckboxes input').change(function(){
-        var chart = $(this).parent().data('chart');
-        var $canvas = $('#' + chart + 'Chart');
+        var chart_name = $(this).parent().data('chart');
+        var $canvas = $('#line_chart_' + chart_name);
         draw_line_chart(false, $canvas);
     });
 
-    $(window).on('resize', function(){ size(false); });
+    $(window).on('resize', function(){
+        size(false);
+    });
+
+    $('#doughnut_tabs a').click(function (e) {
+        e.preventDefault();
+        $(this).tab('show');
+        size(false);
+    });
 
     size(true);
 });
diff --git a/app/assets/stylesheets/osem.css b/app/assets/stylesheets/osem.css
index 396957dd..41bde9ff 100644
--- a/app/assets/stylesheets/osem.css
+++ b/app/assets/stylesheets/osem.css
@@ -83,3 +83,11 @@ body {
 .top-submitter img {
     margin: 0 auto;
 }
+
+#doughnut .tab-content {
+    padding-bottom: 20px;
+}
+
+#submissions {
+    padding-bottom: 20px;
+}
diff --git a/app/controllers/admin/conference_controller.rb b/app/controllers/admin/conference_controller.rb
index 50eff4e3..7317252a 100644
--- a/app/controllers/admin/conference_controller.rb
+++ b/app/controllers/admin/conference_controller.rb
@@ -17,8 +17,10 @@ class Admin::ConferenceController < ApplicationController
     @total_submissions = Event.count
     @new_submissions = Event.where('created_at > ?', current_user.last_sign_in_at).count
 
-    @conferences = Conference.select('id, short_title, color, start_date,
-                                      registration_end_date, registration_start_date')
+    @active_conferences = Conference.get_active_conferences_for_dashboard # pending or the last two
+    @deactive_conferences = Conference.
+      get_conferences_without_active_for_dashboard(@active_conferences) # conferences without active
+    @conferences = @active_conferences + @deactive_conferences
 
     @recent_users = User.limit(5).order(created_at: :desc)
     @recent_events = Event.limit(5).order(created_at: :desc)
@@ -86,9 +88,63 @@ class Admin::ConferenceController < ApplicationController
 
   def show
     @conference = Conference.find_by(short_title: params[:id])
+
+    # Overview and since last login information
+    @total_reg = @conference.registrations.count
+    @new_reg = @conference.registrations.where('created_at > ?', current_user.last_sign_in_at).count
+
+    @total_submissions = @conference.events.count
+    @new_submissions = @conference.events.
+        where('created_at > ?', current_user.last_sign_in_at).count
+
+    @program_length = @conference.current_program_hours
+    @new_program_length = @conference.new_program_hours(current_user.last_sign_in_at)
+
+    #  Step by step list
     @conference_progress = @conference.get_status
+
+    # Line charts
+    @registrations = { @conference.short_title => @conference.get_registrations_per_week }
+    @registration_weeks = [0]
+    @registration_weeks.push(@registrations[@conference.short_title].length)
+
+    @registration_weeks = @registration_weeks.max
+    @registrations = normalize_array_length(@registrations, @registration_weeks)
+    @registration_weeks = @registration_weeks > 0 ? (1..@registration_weeks).to_a : 1
+
+    @submissions = Conference.get_event_state_line_colors
+
+    @submissions_data = {}
+    @cfp_weeks = [0]
+    @submissions_data['Submitted'] = @conference.get_submissions_per_week
+    @cfp_weeks.push(@submissions_data['Submitted'].length)
+
+    @submissions_data['Confirmed'] = @conference.get_submissions_per_week_by_status('confirmed')
+    @cfp_weeks.push(@submissions_data['Confirmed'].length)
+
+    @submissions_data['Unconfirmed'] = @conference.get_submissions_per_week_by_status('unconfirmed')
+    @cfp_weeks.push(@submissions_data['Unconfirmed'].length)
+
+    @cfp_weeks = @cfp_weeks.max
+    @submissions_data = normalize_array_length(@submissions_data, @cfp_weeks)
+    @cfp_weeks = @cfp_weeks > 0 ? (1..@cfp_weeks).to_a : 1
+
+    # Doughnut charts
+    @event_type_distribution = @conference.event_type_distribution
+    @event_type_distribution_confirmed = @conference.event_type_distribution(:confirmed)
+
+    @difficulty_levels_distribution = @conference.difficulty_levels_distribution
+    @difficulty_levels_distribution_confirmed = @conference.
+        difficulty_levels_distribution(:confirmed)
+
+    @tracks_distribution = @conference.tracks_distribution
+    @tracks_distribution_confirmed = @conference.tracks_distribution(:confirmed)
+
+    # Recent actions information
+    @recent_events = @conference.events.limit(5).order(created_at: :desc)
+    @recent_registrations = @conference.registrations.limit(5).order(created_at: :desc)
+
     @top_submitter = @conference.get_top_submitter
-    @event_distribution = @conference.event_distribution
 
     respond_to do |format|
       format.html
diff --git a/app/models/conference.rb b/app/models/conference.rb
index 2343b5e1..cdc82963 100644
--- a/app/models/conference.rb
+++ b/app/models/conference.rb
@@ -169,6 +169,23 @@ class Conference < ActiveRecord::Base
     result
   end
 
+  ##
+  # Returns an array with the summarized event submissions per week.
+  #
+  # ====Returns
+  #  * +Array+ -> e.g. [0, 3, 3, 5] -> first week 0 events, second week 3 events.
+  def get_submissions_per_week_by_status(state)
+    result = []
+
+    if call_for_papers && events
+      submissions = events.where('state = ?', state).group("strftime('%W', created_at)").count
+      start_week = call_for_papers.start_week
+      weeks = call_for_papers.weeks
+      result = calculate_items_per_week(start_week, weeks, submissions)
+    end
+    result
+  end
+
   ##
   # Returns an array with the summarized registrations per week.
   #
@@ -326,6 +343,106 @@ class Conference < ActiveRecord::Base
     calculate_user_distribution_hash(active_user, unconfirmed_user, dead_user)
   end
 
+  ##
+  # Calculates the overall programm hours
+  #
+  # ====Returns
+  # * +hash+ -> Fixnum hours
+  def current_program_hours
+    events_grouped = events.group(:event_type_id)
+    events_counted = events_grouped.count
+    calculate_program_hours(events_grouped, events_counted)
+  end
+
+  ##
+  # Calculates the overall programm hours since date
+  #
+  # ====Returns
+  # * +hash+ -> Fixnum hours
+  def new_program_hours(date)
+    events_grouped = events.where('created_at > ?', date).group(:event_type_id)
+    events_counted = events_grouped.count
+    calculate_program_hours(events_grouped, events_counted)
+  end
+
+  ##
+  # Calculates the difficulty level distribution from all events.
+  #
+  # ====Returns
+  # * +hash+ -> difficulty level => {color, value}
+  def difficulty_levels_distribution(state = nil)
+    calculate_event_distribution(:difficulty_level_id, :difficulty_level, state)
+  end
+
+  ##
+  # Calculates the event_type distribution from all events.
+  #
+  # ====Returns
+  # * +hash+ -> event_type => {color, value}
+  def event_type_distribution(state = nil)
+    calculate_event_distribution(:event_type_id, :event_type, state)
+  end
+
+  ##
+  # Calculates the track distribution from all events.
+  #
+  # ====Returns
+  # * +hash+ -> track => {color, value}
+  def tracks_distribution(state = nil)
+    if state
+      tracks_grouped = events.where('state = ?', state).group(:track_id)
+    else
+      tracks_grouped = events.group(:track_id)
+    end
+    tracks_counted = tracks_grouped.count
+
+    calculate_track_distribution_hash(tracks_grouped, tracks_counted)
+  end
+
+  ##
+  # Return all pending conferences. If there are no pending conferences, the last two
+  # past conferences are returned
+  #
+  # ====Returns
+  # * +ActiveRecord+
+  def self.get_active_conferences_for_dashboard
+    result = Conference.where('start_date > ?', Time.now).
+        select('id, short_title, color, start_date,
+        registration_end_date, registration_start_date')
+
+    if result.length == 0
+      result = Conference.
+          select('id, short_title, color, start_date, registration_end_date,
+          registration_start_date').limit(2).
+          order(start_date: :desc)
+    end
+    result
+  end
+
+  ##
+  # Return all conferences minus the active conferences
+  #
+  # ====Returns
+  # * +ActiveRecord+
+  def self.get_conferences_without_active_for_dashboard(active_conferences)
+    result = Conference.select('id, short_title, color, start_date,
+              registration_end_date, registration_start_date').order(start_date: :desc)
+    result - active_conferences
+  end
+
+  ##
+  # A list with the three event states submitted, confirmed, unconfirmed with corresponding colors
+  #
+  # ====Returns
+  # * +List+
+  def self.get_event_state_line_colors
+    result = []
+    result.push(short_title: 'Submitted', color: 'blue')
+    result.push(short_title: 'Confirmed', color: 'green')
+    result.push(short_title: 'Unconfirmed', color: 'orange')
+    result
+  end
+
   private
 
   ##
@@ -407,6 +524,73 @@ class Conference < ActiveRecord::Base
     !!registration_start_date && !!registration_end_date
   end
 
+  # Calculates the distribution from events.
+  #
+  # ====Returns
+  # * +hash+ -> object_type => {color, value}
+  def calculate_event_distribution(group_by_id, association_symbol, state = nil)
+    if state
+      grouped = events.where('state = ?', 'confirmed').group(group_by_id)
+    else
+      grouped = events.group(group_by_id)
+    end
+    counted = grouped.count
+
+    calculate_distribution_hash(grouped, counted, association_symbol)
+  end
+
+  ##
+  # Helper method to calculate the correct data format for the doughnut charts.
+  #
+  # ====Returns
+  # * +hash+ -> object_type => {color, value}
+  def calculate_distribution_hash(grouped, counter, symbol)
+    result = {}
+
+    grouped.each do |event|
+      object = event.send(symbol)
+      if object
+        result[object.title] = {
+          'value' => counter[object.id],
+          'color' => object.color
+        }
+      end
+    end
+    result
+  end
+
+  ##
+  # Helper method to calculate the correct data format for the doughnut charts
+  # for track distribution of events.
+  #
+  # ====Returns
+  # * +hash+ -> object_type => {color, value}
+  def calculate_track_distribution_hash(tracks_grouped, tracks_counter)
+    result = {}
+    tracks_grouped.each do |event|
+      if event.track
+        result[event.track.name] = {
+          'value' => tracks_counter[event.track_id],
+          'color' => event.track.color
+        }
+      end
+    end
+    result
+  end
+
+  ##
+  # Helper method to calculate the program hours.
+  #
+  # ====Returns
+  # * +Fixnums+ summed programm hours
+  def calculate_program_hours(events_grouped, events_counted)
+    result = 0
+    events_grouped.each do |event|
+      result += events_counted[event.event_type_id] * event.event_type.length
+    end
+    result
+  end
+
   ##
   # Helper method for calculating hash with corresponding colors of user distribution states.
   #
@@ -496,14 +680,18 @@ class Conference < ActiveRecord::Base
   #
   def add_color
     if !color
-      self.color = %w(
+      self.color = get_color
+    end
+  end
+
+  def get_color
+    %w(
         #000000 #0000FF #00FF00 #FF0000 #FFFF00 #9900CC
         #CC0066 #00FFFF #FF00FF #C0C0C0 #00008B #FFD700
         #FFA500 #FF1493 #FF00FF #F0FFFF #EE82EE #D2691E
         #C0C0C0 #A52A2A #9ACD32 #9400D3 #8B008B #8B0000
         #87CEEB #808080 #800080 #008B8B #006400
       ).sample
-    end
   end
 
   # Calculates items per week from a hash.
diff --git a/app/views/admin/conference/_doughnut_chart.html.haml b/app/views/admin/conference/_doughnut_chart.html.haml
new file mode 100644
index 00000000..9e2990f9
--- /dev/null
+++ b/app/views/admin/conference/_doughnut_chart.html.haml
@@ -0,0 +1,6 @@
+.text-center
+  %h4 #{title}
+  %canvas.doughnut_chart{"data-chart"=>data.to_json}
+- if data
+  - data.each do |key, value|
+    %span{"style"=>"border-bottom: 3px solid #{value['color']}"} #{key}: #{value['value']}
\ No newline at end of file
diff --git a/app/views/admin/conference/_event_distribution.html.haml b/app/views/admin/conference/_event_distribution.html.haml
deleted file mode 100644
index d88f5934..00000000
--- a/app/views/admin/conference/_event_distribution.html.haml
+++ /dev/null
@@ -1,8 +0,0 @@
-.well
-  .text-center
-    %h4 Event distribution
-    %canvas.doughnut_chart{"data-chart"=>@event_distribution.to_json}
-  .row
-    - if @event_distribution
-      - @event_distribution.each do |key, value|
-        %span{"style"=>"border-bottom: 3px solid #{value['color']}"} #{key}: #{value['value']}
\ No newline at end of file
diff --git a/app/views/admin/conference/_line_chart.html.haml b/app/views/admin/conference/_line_chart.html.haml
new file mode 100644
index 00000000..c57a6e09
--- /dev/null
+++ b/app/views/admin/conference/_line_chart.html.haml
@@ -0,0 +1,29 @@
+.row
+  .col-md-12
+    .text-center
+      %h4
+        = title
+.row
+  .col-md-12
+    .chart_data{ "data-chart"=>"#{y.to_json}", "data-conferences"=>"#{conferences.to_json}",
+                        "data-deactive"=>"#{deactive_conferences.to_json}", "data-weeks"=>"#{x.to_json}",
+                        "data-active"=>"#{active_conferences.to_json}"}
+      %canvas.line_chart{ :id => "line_chart_#{name}", "data-name"=>"#{name}" }
+.row
+  .col-md-12
+    .text-center
+      = unit
+.row
+  .col-md-12
+    .conferenceCheckboxes{ :id => "#{name}Checkboxes", "data-name"=>"#{name}" }
+      - if active_conferences && deactive_conferences && conferences && conferences.length > 1
+        - active_conferences.each do |conference|
+          %div
+            %span{ "style"=>"border-bottom: 3px solid #{conference[:color]};", "data-chart"=> "#{name}" }
+              %input{ "type"=>"checkbox", "name"=>"#{conference[:short_title]}", "checked"=>"checked"}
+              #{conference[:short_title]}
+        - deactive_conferences.each do |conference|
+          %div
+            %span{"style"=>"border-bottom: 3px solid #{conference[:color]};", "data-chart"=> "#{name}" }
+              %input{"type"=>"checkbox", "name"=>"#{conference[:short_title]}" }
+              #{conference[:short_title]}
diff --git a/app/views/admin/conference/_recent_registrations.html.haml b/app/views/admin/conference/_recent_registrations.html.haml
index eefab05a..8211c33f 100644
--- a/app/views/admin/conference/_recent_registrations.html.haml
+++ b/app/views/admin/conference/_recent_registrations.html.haml
@@ -1,18 +1,19 @@
 - if recent_registrations && !recent_registrations.empty?
-  %table.table
-    %thead
-      %tr
-        %th #
-        %th Public Name
-        %th Conference
-        %th Date
-      - recent_registrations.each_with_index do |registration, index|
-        %tbody
-          %tr
-            %td #{index + 1}
-            %td #{registration.public_name}
-            %td #{registration.conference.title}
-            %td #{registration.created_at.strftime('%m/%d/%Y')}
+  .table-responsive
+    %table.table
+      %thead
+        %tr
+          %th #
+          %th Public Name
+          %th Conference
+          %th Date
+        - recent_registrations.each_with_index do |registration, index|
+          %tbody
+            %tr
+              %td #{index + 1}
+              %td #{registration.public_name}
+              %td #{registration.conference.title}
+              %td #{registration.created_at.strftime('%m/%d/%Y')}
 - else
   %h5.text-warning.text-center
     No registrations!
\ No newline at end of file
diff --git a/app/views/admin/conference/_recent_submissions.html.haml b/app/views/admin/conference/_recent_submissions.html.haml
index e13f559a..ac522c5b 100644
--- a/app/views/admin/conference/_recent_submissions.html.haml
+++ b/app/views/admin/conference/_recent_submissions.html.haml
@@ -1,21 +1,22 @@
 - if recent_events && !recent_events.empty?
-  %table.table
-    %thead
-      %tr
-        %th #
-        %th Submitter
-        %th Title
-        %th Conference
-        %th Status
-      - recent_events.each_with_index do |event, index|
-        %tbody
-          %tr
-            %td #{index + 1}
-            %td #{event.submitter}
-            %td #{event.title}
-            %td #{event.conference.title}
-            %td
-              .span{'class'=>label_for(event.state)} #{event.state.humanize}
+  .table-responsive
+    %table.table
+      %thead
+        %tr
+          %th #
+          %th Submitter
+          %th Title
+          %th Conference
+          %th Status
+        - recent_events.each_with_index do |event, index|
+          %tbody
+            %tr
+              %td #{index + 1}
+              %td #{event.submitter}
+              %td #{event.title}
+              %td #{event.conference.title}
+              %td
+                .span{'class'=>label_for(event.state)} #{event.state.humanize}
 - else
   %h5.text-warning.text-center
     No submissions!
\ No newline at end of file
diff --git a/app/views/admin/conference/_recent_users.html.haml b/app/views/admin/conference/_recent_users.html.haml
index 016c08ae..d750f309 100644
--- a/app/views/admin/conference/_recent_users.html.haml
+++ b/app/views/admin/conference/_recent_users.html.haml
@@ -1,22 +1,23 @@
 - if recent_users && !recent_users.empty?
-  %table.table
-    %thead
-      %tr
-        %th #
-        %th E-Mail
-        %th Date registered
-        %th Status
-    - recent_users.each_with_index do |user, index|
-      %tbody
+  .table-responsive
+    %table.table
+      %thead
         %tr
-          %td #{index}
-          %td #{user.email}
-          %td #{user.created_at.strftime('%m/%d/%Y')}
-          %td
-            - if user.confirmed?
-              %span.label.label-success Confirmed
-            -else
-              %span.label.label-danger Unconfirmed
+          %th #
+          %th E-Mail
+          %th Date registered
+          %th Status
+      - recent_users.each_with_index do |user, index|
+        %tbody
+          %tr
+            %td #{index}
+            %td #{user.email}
+            %td #{user.created_at.strftime('%m/%d/%Y')}
+            %td
+              - if user.confirmed?
+                %span.label.label-success Confirmed
+              -else
+                %span.label.label-danger Unconfirmed
 - else
   %h5.text-warning.text-center
     No sign ups!
\ No newline at end of file
diff --git a/app/views/admin/conference/_registrations.html.haml b/app/views/admin/conference/_registrations.html.haml
deleted file mode 100644
index 6f112864..00000000
--- a/app/views/admin/conference/_registrations.html.haml
+++ /dev/null
@@ -1,20 +0,0 @@
-.well#registrations
-  .row
-    .text-center
-      %h4 Conference registrations over time
-  .row
-    .registrationsChart{"data-chart"=>"#{registrations.to_json}", "data-conferences"=>"#{conferences.to_json}", "data-weeks"=>"#{registration_weeks.to_json}"}
-      %canvas.line_chart#registrationsChart{"data-name"=>"registrations"}
-  .row
-    .text-center
-      weeks
-  .row
-    .conferenceCheckboxes#registrationsCheckboxes
-      - conferences.each do |conference|
-        %div
-          %span{"style"=>"border-bottom: 3px solid #{conference.color};", "data-chart"=> "registrations"}
-            - if conference.pending?
-              %input{"type"=>"checkbox", "name"=>"#{conference.short_title}", "checked"=>"checked"}
-            - else
-              %input{"type"=>"checkbox", "name"=>"#{conference.short_title}"}
-            #{conference.short_title}
diff --git a/app/views/admin/conference/_submissions.html.haml b/app/views/admin/conference/_submissions.html.haml
deleted file mode 100644
index 8d7673fa..00000000
--- a/app/views/admin/conference/_submissions.html.haml
+++ /dev/null
@@ -1,20 +0,0 @@
-.well#submissions
-  .row
-    .text-center
-      %h4 Event submissions over time
-  .row
-    .submissionsChart{"data-chart"=>"#{submissions.to_json}", "data-conferences"=>"#{conferences.to_json}", "data-weeks"=>"#{cfp_weeks.to_json}"}
-      %canvas.line_chart#submissionsChart{"data-name"=>"submissions"}
-  .row
-    .text-center
-      weeks
-  .row
-    .conferenceCheckboxes#submissionsCheckboxes
-      - conferences.each do |conference|
-        %div
-          %span{"style"=>"border-bottom: 3px solid #{conference.color};", "data-chart"=> "submissions"}
-            - if conference.pending?
-              %input{"type"=>"checkbox", "name"=>"#{conference.short_title}", "checked"=>"checked"}
-            - else
-              %input{"type"=>"checkbox", "name"=>"#{conference.short_title}"}
-            #{conference.short_title}
diff --git a/app/views/admin/conference/_top_boxes.html.haml b/app/views/admin/conference/_top_boxes.html.haml
deleted file mode 100644
index a5a26000..00000000
--- a/app/views/admin/conference/_top_boxes.html.haml
+++ /dev/null
@@ -1,21 +0,0 @@
-.col-sm-4
-  .dashbox.well.well-sm.text-center
-    .icon
-      %i.glyphicon.glyphicon-user
-    .text
-      %label.text-muted total user: #{@total_user}
-      %label.text-muted new user: #{@new_user}
-.col-sm-4
-  .dashbox.well.well-sm.text-center
-    .icon
-      %i.glyphicon.glyphicon-star
-    .text
-      %label.text-muted total registrations: #{@total_reg}
-      %label.text-muted new registrations: #{@new_reg}
-.col-sm-4
-  .dashbox.well.well-sm.text-center
-    .icon
-      %i.glyphicon.glyphicon-comment
-    .text
-      %label.text-muted total submissions: #{@total_submissions}
-      %label.text-muted new submissions: #{@new_submissions}
\ No newline at end of file
diff --git a/app/views/admin/conference/_top_submitter.html.haml b/app/views/admin/conference/_top_submitter.html.haml
index 0a79ed54..6a072f72 100644
--- a/app/views/admin/conference/_top_submitter.html.haml
+++ b/app/views/admin/conference/_top_submitter.html.haml
@@ -1,17 +1,18 @@
 .row
-  %h3
-    Top Submitter
-  - if @top_submitter && !@top_submitter.empty?
-    - @top_submitter.each do |key, value|
-      .row.top-submitter
-        .col-md-2
-          = image_tag(key.gravatar_url(size: '25'), title: "Yo #{key.public_name}!", :alt => '', 'class'=>'img-circle img-responsive text-center')
-        .col-md-10
-          %h4
-            #{key}
-            %div
-              %small
-                #{pluralize(value, 'submission')}
-  - else
-    %h4.text-warning
-      No submissions!
+  .col-md-12
+    %h3
+      Top Submitter
+    - if @top_submitter && !@top_submitter.empty?
+      - @top_submitter.each do |key, value|
+        .row.top-submitter
+          .col-md-2
+            = image_tag(key.gravatar_url(size: '25'), title: "Yo #{key.public_name}!", :alt => '', 'class'=>'img-circle img-responsive text-center')
+          .col-md-10
+            %h4
+              #{key}
+              %div
+                %small
+                  #{pluralize(value, 'submission')}
+    - else
+      %h4.text-warning
+        No submissions!
diff --git a/app/views/admin/conference/_user_distribution.html.haml b/app/views/admin/conference/_user_distribution.html.haml
deleted file mode 100644
index 272e9d04..00000000
--- a/app/views/admin/conference/_user_distribution.html.haml
+++ /dev/null
@@ -1,8 +0,0 @@
-.well
-  .text-center
-    %h4 User distribution
-    %canvas.doughnut_chart{"data-chart"=>user_distribution.to_json}
-  .row
-    - if user_distribution
-      - user_distribution.each do |key, value|
-        %span{"style"=>"border-bottom: 3px solid #{value['color']}"} #{key}: #{value['value']}
\ No newline at end of file
diff --git a/app/views/admin/conference/index.html.haml b/app/views/admin/conference/index.html.haml
index 7374fa4f..a8d44eae 100644
--- a/app/views/admin/conference/index.html.haml
+++ b/app/views/admin/conference/index.html.haml
@@ -1,46 +1,70 @@
 .row
-  = render partial: 'top_boxes', locals: { total_user: @total_user, new_user: @new_user, active_user: @active_user,
-                                       total_reg: @total_reg, new_reg: @new_reg, submissions_count: @submissions_count }
-.row
+  .col-sm-4
+    .dashbox.text-center
+      .icon
+        %i.glyphicon.glyphicon-user
+      .text
+        %label.text-muted total user: #{@total_user}
+        %label.text-muted new user: #{@new_user}
+  .col-sm-4
+    .dashbox.text-center
+      .icon
+        %i.glyphicon.glyphicon-star
+      .text
+        %label.text-muted total registrations: #{@total_reg}
+        %label.text-muted new registrations: #{@new_reg}
+  .col-sm-4
+    .dashbox.text-center
+      .icon
+        %i.glyphicon.glyphicon-comment
+      .text
+        %label.text-muted total submissions: #{@total_submissions}
+        %label.text-muted new submissions: #{@new_submissions}
+.row#registrations
   .col-md-8
-    = render partial: 'submissions', locals: { conferences: @conferences, submissions: @submissions,
-                                           cfp_weeks: @cfp_weeks }
+    = render partial: 'line_chart', locals: { title: 'Registrations over time',
+                                               name: 'registrations',
+                                               conferences: @conferences,
+                                               active_conferences: @active_conferences,
+                                               deactive_conferences: @deactive_conferences,
+                                               y: @registrations,
+                                               x: @registration_weeks,
+                                               unit: 'weeks' }
   .col-md-4
-    = render partial: 'event_distribution', locals: { event_distribution: @event_distribution }
+    = render partial: 'doughnut_chart', locals: { title: 'Events',data: @event_distribution }
+.row#submissions
+  .col-md-8
+    = render partial: 'line_chart', locals: { title: 'Submissions over time',
+                                               name: 'submissions',
+                                               conferences: @conferences,
+                                               active_conferences: @active_conferences,
+                                               deactive_conferences: @deactive_conferences,
+                                               y: @submissions,
+                                               x: @cfp_weeks,
+                                               unit: 'weeks' }
+  .col-md-4
+    = render partial: 'doughnut_chart', locals: { title: 'User',data: @user_distribution }
 .row
   .col-md-8
-    = render partial: 'registrations', locals: { conferences: @conferences, registrations: @registrations,
-                                             registration_weeks: @registration_weeks }
-  .col-md-4
-    = render partial: 'user_distribution', locals: { user_distribution: @user_distribution }
-  .col-md-8
-    .row
-      %ul.nav.nav-tabs#recentTable
-        %li.active
-          %a{:href=>"#recent_user", "data-toggle"=>"tab"}
-            %span.glyphicon.glyphicon-user
-            Recent Users
-        %li
-          %a{:href=>"#recent_reg", "data-toggle"=>"tab"}
-            %span.glyphicon.glyphicon-star
-            Recent Registrations
-        %li
-          %a{:href=>"#recent_submissions", "data-toggle"=>"tab"}
-            %span.glyphicon.glyphicon-comment
-            Recent Submissions
-      .tab-content
-        .tab-pane.active#recent_user
-          = render partial: 'recent_users', locals: {recent_users: @recent_users}
-        .tab-pane#recent_reg
-          = render partial: 'recent_registrations', locals: {recent_registrations: @recent_registrations}
-        .tab-pane#recent_submissions
-          = render partial: 'recent_submissions', locals: {recent_events: @recent_events}
+    %ul.nav.nav-tabs#recentTable
+      %li.active
+        %a{:href=>"#recent_user", "data-toggle"=>"tab"}
+          %span.glyphicon.glyphicon-user
+          Recent Users
+      %li
+        %a{:href=>"#recent_reg", "data-toggle"=>"tab"}
+          %span.glyphicon.glyphicon-star
+          Recent Registrations
+      %li
+        %a{:href=>"#recent_submissions", "data-toggle"=>"tab"}
+          %span.glyphicon.glyphicon-comment
+          Recent Submissions
+    .tab-content
+      .tab-pane.active#recent_user
+        = render partial: 'recent_users', locals: {recent_users: @recent_users}
+      .tab-pane#recent_reg
+        = render partial: 'recent_registrations', locals: {recent_registrations: @recent_registrations}
+      .tab-pane#recent_submissions
+        = render partial: 'recent_submissions', locals: {recent_events: @recent_events}
   .col-md-4
     = render partial: 'top_submitter', locals: {top_submitter: @top_submitter}
-
-
-:javascript
-  $('#recentTable a').click(function (e) {
-    e.preventDefault();
-    $(this).tab('show');
-  })
diff --git a/app/views/admin/conference/show.html.haml b/app/views/admin/conference/show.html.haml
index 7aa12860..3d0f68b0 100644
--- a/app/views/admin/conference/show.html.haml
+++ b/app/views/admin/conference/show.html.haml
@@ -3,9 +3,103 @@
   Dashboard for #{@conference.title}
 %hr
 .row
-  .col-md-4
-    = render partial: 'todo_list', locals: { conference_progress: @conference_progress }
+  .col-sm-4
+    .dashbox.text-center
+      .icon
+        %i.glyphicon.glyphicon-star
+      .text
+        %label.text-muted total registrations: #{@total_reg}
+        %label.text-muted new registrations: #{@new_reg}
+  .col-sm-4
+    .dashbox.text-center
+      .icon
+        %i.glyphicon.glyphicon-comment
+      .text
+        %label.text-muted total submissions: #{@total_submissions}
+        %label.text-muted new submissions: #{@new_submissions}
+  .col-sm-4
+    .dashbox.text-center
+      .icon
+        %i.glyphicon.glyphicon-user
+      .text
+        %label.text-muted programm hours: #{@program_length} h
+        %label.text-muted new programm hours: #{@new_program_length} h
+.row
+  .col-md-12
+    .row
+      .col-md-8
+        .row#registrations
+          .col-md-12
+            = render partial: 'line_chart', locals: { title: 'Registrations over time',
+                                                       name: 'registrations',
+                                                       conferences: [@conference],
+                                                       active_conferences: [@conference],
+                                                       deactive_conferences: [],
+                                                       y: @registrations,
+                                                       x: @registration_weeks,
+                                                       unit: 'weeks' }
+        .row#submissions
+          .col-md-12
+            = render partial: 'line_chart', locals: { title: 'Submissions over time',
+                                                        name: 'submissions',
+                                                        conferences: @submissions,
+                                                        active_conferences: @submissions,
+                                                        deactive_conferences: [],
+                                                        y: @submissions_data,
+                                                        x: @cfp_weeks,
+                                                        unit: 'weeks' }
+      .col-md-4
+        = render partial: 'todo_list', locals: { conference_progress: @conference_progress }
+.row
+  .col-md-12#doughnut
+    %ul.nav.nav-tabs#doughnut_tabs
+      %li.active
+        %a{:href=>"#distribution_all", "data-toggle"=>"tab"}
+          %span.glyphicon.glyphicon-star
+          All
+      %li
+        %a{:href=>"#distribution_confirmed", "data-toggle"=>"tab"}
+          %span.glyphicon.glyphicon-comment
+          Confirmed
+    .tab-content
+      .tab-pane.active#distribution_all
+        .row
+          .col-md-4
+            = render partial: 'doughnut_chart', locals: {title: 'Event types', data: @event_type_distribution}
+          .col-md-4
+            = render partial: 'doughnut_chart', locals: {title: 'Difficulty levels', data: @difficulty_levels_distribution}
+          .col-md-4
+            = render partial: 'doughnut_chart', locals: {title: 'Tracks', data: @tracks_distribution}
+      .tab-pane#distribution_confirmed
+        .row
+          .col-md-4
+            = render partial: 'doughnut_chart', locals: {title: 'Event types', data: @event_type_distribution_confirmed}
+          .col-md-4
+            = render partial: 'doughnut_chart', locals: {title: 'Difficulty levels', data: @difficulty_levels_distribution_confirmed}
+          .col-md-4
+            = render partial: 'doughnut_chart', locals: {title: 'Tracks', data: @tracks_distribution_confirmed}
+
+.row
+  .col-md-8
+    %ul.nav.nav-tabs#recentTable
+      %li.active
+        %a{:href=>"#recent_reg", "data-toggle"=>"tab"}
+          %span.glyphicon.glyphicon-star
+          Recent Registrations
+      %li
+        %a{:href=>"#recent_submissions", "data-toggle"=>"tab"}
+          %span.glyphicon.glyphicon-comment
+          Recent Submissions
+    .tab-content
+      .tab-pane.active#recent_reg
+        = render partial: 'recent_registrations', locals: {recent_registrations: @recent_registrations}
+      .tab-pane#recent_submissions
+        = render partial: 'recent_submissions', locals: {recent_events: @recent_events}
   .col-md-4
     = render partial: 'top_submitter', locals: {top_submitter: @top_submitter}
-  .col-md-4
-    = render partial: 'event_distribution', locals: { event_distribution: @event_distribution }
+
+:javascript
+  $('#recentTable a').click(function (e) {
+    e.preventDefault();
+    $(this).tab('show');
+  })
diff --git a/spec/models/conference_spec.rb b/spec/models/conference_spec.rb
index ae404f3c..31948ee9 100644
--- a/spec/models/conference_spec.rb
+++ b/spec/models/conference_spec.rb
@@ -6,6 +6,413 @@ describe Conference do
 
   let(:subject) { create(:conference) }
 
+  describe 'program hours' do
+    before(:each) do
+      @long = create(:event_type, length: 100)
+      @short = create(:event_type, length: 10)
+    end
+
+    describe '#actual_program_hours' do
+      it 'calculates correct values with events' do
+        create(:event, conference: subject, event_type: @long)
+        create(:event, conference: subject, event_type: @long)
+        create(:event, conference: subject, event_type: @short)
+        create(:event, conference: subject, event_type: @short)
+        result = 220
+        expect(subject.current_program_hours).to eq(result)
+      end
+
+      it 'calculates correct values without events' do
+        result = 0
+        expect(subject.current_program_hours).to eq(result)
+      end
+    end
+
+    describe '#new_program_hours' do
+      it 'calculates correct values with events' do
+
+        create(:event, conference: subject, event_type: @long, created_at: Time.now - 3.days)
+        create(:event, conference: subject, event_type: @long)
+        create(:event, conference: subject, event_type: @short, created_at: Time.now - 3.days)
+        create(:event, conference: subject, event_type: @short)
+        result = 110
+        expect(subject.new_program_hours(Time.now - 5.minutes)).to eq(result)
+      end
+
+      it 'calculates correct values without events' do
+        result = 0
+        expect(subject.new_program_hours(Time.now - 5.minutes)).to eq(result)
+      end
+    end
+  end
+
+  describe '#difficulty_levels' do
+    before (:each) do
+      subject.email_settings = create(:email_settings)
+      @easy = create(:difficulty_level, title: 'Easy', color: '#000000')
+      @hard = create(:difficulty_level, title: 'Hard', color: '#ffffff')
+    end
+
+    describe '#difficulty_levels_distribution' do
+
+      it 'calculates correct for different difficulty levels' do
+        create(:event, conference: subject, difficulty_level: @easy)
+        create(:event, conference: subject, difficulty_level: @easy)
+        create(:event, conference: subject, difficulty_level: @hard)
+        result = {}
+        result['Hard'] = {
+          'value' => 1,
+          'color' => '#ffffff',
+        }
+        result['Easy'] = {
+          'value' => 2,
+          'color' => '#000000',
+        }
+        expect(subject.difficulty_levels_distribution).to eq(result)
+      end
+
+      it 'calculates correct for one difficulty levels' do
+        create(:event, conference: subject, difficulty_level: @easy)
+        result = {}
+        result['Easy'] = {
+          'value' => 1,
+          'color' => '#000000',
+        }
+        expect(subject.difficulty_levels_distribution).to eq(result)
+      end
+
+      it 'calculates correct for no difficulty levels' do
+        result = {}
+        expect(subject.difficulty_levels_distribution).to eq(result)
+      end
+    end
+
+    describe '#difficulty_levels_distribution_confirmed' do
+      it 'calculates correct for different difficulty levels without confirmed' do
+        create(:event, conference: subject, difficulty_level: @easy)
+        create(:event, conference: subject, difficulty_level: @easy)
+        create(:event, conference: subject, difficulty_level: @hard)
+        result = {}
+
+        expect(subject.difficulty_levels_distribution(:confirmed)).to eq(result)
+      end
+
+      it 'calculates correct for different difficulty levels with confirmed' do
+        confirmed_easy = create(:event, conference: subject, difficulty_level: @easy)
+        create(:event, conference: subject, difficulty_level: @easy)
+        confirmed_hard = create(:event, conference: subject, difficulty_level: @hard)
+
+        options = {}
+        options[:send_mail] = 'false'
+        confirmed_easy.accept!(options)
+        confirmed_hard.accept!(options)
+        confirmed_easy.confirm!
+        confirmed_hard.confirm!
+
+        result = {}
+        result['Hard'] = {
+          'value' => 1,
+          'color' => '#ffffff'
+        }
+        result['Easy'] = {
+          'value' => 1,
+          'color' => '#000000'
+        }
+        expect(subject.difficulty_levels_distribution(:confirmed)).to eq(result)
+      end
+
+      it 'calculates correct for one difficulty levels' do
+        confirmed = create(:event, conference: subject, difficulty_level: @easy)
+        options = {}
+        options[:send_mail] = 'false'
+        confirmed.accept!(options)
+        confirmed.confirm!
+
+        result = {}
+        result['Easy'] = {
+          'value' => 1,
+          'color' => '#000000',
+        }
+        expect(subject.difficulty_levels_distribution(:confirmed)).to eq(result)
+      end
+
+      it 'calculates correct for no difficulty levels' do
+        result = {}
+        expect(subject.difficulty_levels_distribution(:confirmed)).to eq(result)
+      end
+    end
+  end
+
+  describe 'event type distribution' do
+    before (:each) do
+      subject.email_settings = create(:email_settings)
+      @workshop = create(:event_type, title: 'Workshop', color: '#000000')
+      @lecture = create(:event_type, title: 'Lecture', color: '#ffffff')
+    end
+
+    describe '#event_type_distribution' do
+      it 'calculates correct for different event types' do
+        create(:event, conference: subject, event_type: @workshop)
+        create(:event, conference: subject, event_type: @workshop)
+        create(:event, conference: subject, event_type: @lecture)
+        result = {}
+        result['Workshop'] = {
+          'value' => 2,
+          'color' => '#000000',
+        }
+        result['Lecture'] = {
+          'value' => 1,
+          'color' => '#ffffff',
+        }
+        expect(subject.event_type_distribution).to eq(result)
+      end
+
+      it 'calculates correct for one event types' do
+        create(:event, conference: subject, event_type: @workshop)
+        result = {}
+        result['Workshop'] = {
+          'value' => 1,
+          'color' => '#000000',
+        }
+        expect(subject.event_type_distribution).to eq(result)
+      end
+
+      it 'calculates correct for no event types' do
+        result = {}
+        expect(subject.event_type_distribution).to eq(result)
+      end
+    end
+
+    describe '#event_type_distribution_confirmed' do
+      it 'calculates correct for different event types without confirmed' do
+        create(:event, conference: subject, event_type: @workshop)
+        create(:event, conference: subject, event_type: @workshop)
+        create(:event, conference: subject, event_type: @lecture)
+        result = {}
+
+        expect(subject.event_type_distribution(:confirmed)).to eq(result)
+      end
+
+      it 'calculates correct for different event types with confirmed' do
+        confirmed_ws = create(:event, conference: subject, event_type: @workshop)
+        create(:event, conference: subject, event_type: @workshop)
+        confirmed_lt = create(:event, conference: subject, event_type: @lecture)
+
+        options = {}
+        options[:send_mail] = 'false'
+        confirmed_ws.accept!(options)
+        confirmed_lt.accept!(options)
+        confirmed_ws.confirm!
+        confirmed_lt.confirm!
+
+        result = {}
+        result['Lecture'] = {
+          'value' => 1,
+          'color' => '#ffffff'
+        }
+        result['Workshop'] = {
+          'value' => 1,
+          'color' => '#000000'
+        }
+        expect(subject.event_type_distribution(:confirmed)).to eq(result)
+      end
+
+      it 'calculates correct for one event types' do
+        confirmed = create(:event, conference: subject, event_type: @workshop)
+        options = {}
+        options[:send_mail] = 'false'
+        confirmed.accept!(options)
+        confirmed.confirm!
+
+        result = {}
+        result['Workshop'] = {
+          'value' => 1,
+          'color' => '#000000',
+        }
+        expect(subject.event_type_distribution(:confirmed)).to eq(result)
+      end
+
+      it 'calculates correct for no event types' do
+        result = {}
+        expect(subject.event_type_distribution(:confirmed)).to eq(result)
+      end
+    end
+  end
+
+  describe 'tracks_distribution' do
+    before (:each) do
+      subject.email_settings = create(:email_settings)
+      @track_one = create(:track, name: 'Track One', color: '#000000')
+      @track_two = create(:track, name: 'Track Two', color: '#ffffff')
+    end
+
+    describe '#tracks_distribution' do
+      it 'calculates correct for different tracks' do
+        create(:event, conference: subject, track: @track_one)
+        create(:event, conference: subject, track: @track_one)
+        create(:event, conference: subject, track: @track_two)
+        result = {}
+        result['Track One'] = {
+          'value' => 2,
+          'color' => '#000000',
+        }
+        result['Track Two'] = {
+          'value' => 1,
+          'color' => '#ffffff',
+        }
+        expect(subject.tracks_distribution).to eq(result)
+      end
+
+      it 'calculates correct for one track' do
+        create(:event, conference: subject, track: @track_one)
+        result = {}
+        result['Track One'] = {
+          'value' => 1,
+          'color' => '#000000',
+        }
+        expect(subject.tracks_distribution).to eq(result)
+      end
+
+      it 'calculates correct for no track' do
+        result = {}
+        expect(subject.tracks_distribution).to eq(result)
+      end
+    end
+
+    describe '#tracks_distribution_confirmed' do
+      it 'calculates correct for different tracks without confirmed' do
+        create(:event, conference: subject, track: @track_one)
+        create(:event, conference: subject, track: @track_one)
+        create(:event, conference: subject, track: @track_two)
+        result = {}
+
+        expect(subject.tracks_distribution(:confirmed)).to eq(result)
+      end
+
+      it 'calculates correct for different tracks with confirmed' do
+        confirmed_one = create(:event, conference: subject, track: @track_one)
+        create(:event, conference: subject, track: @track_one)
+        confirmed_two = create(:event, conference: subject, track: @track_two)
+
+        options = {}
+        options[:send_mail] = 'false'
+        confirmed_one.accept!(options)
+        confirmed_two.accept!(options)
+        confirmed_one.confirm!
+        confirmed_two.confirm!
+
+        result = {}
+        result['Track One'] = {
+          'value' => 1,
+          'color' => '#000000'
+        }
+        result['Track Two'] = {
+          'value' => 1,
+          'color' => '#ffffff'
+        }
+        expect(subject.tracks_distribution(:confirmed)).to eq(result)
+      end
+
+      it 'calculates correct for one track' do
+        confirmed = create(:event, conference: subject, track: @track_one)
+        options = {}
+        options[:send_mail] = 'false'
+        confirmed.accept!(options)
+        confirmed.confirm!
+
+        result = {}
+        result['Track One'] = {
+          'value' => 1,
+          'color' => '#000000',
+        }
+        expect(subject.tracks_distribution(:confirmed)).to eq(result)
+      end
+
+      it 'calculates correct for no track' do
+        result = {}
+        expect(subject.tracks_distribution(:confirmed)).to eq(result)
+      end
+    end
+  end
+
+  describe '#get_active_conferences' do
+
+    it 'returns pending conferences' do
+      a = create(:conference,
+                 short_title: 'a', start_date: Time.now + 14.days,
+                 end_date: Time.now + 21.days)
+      b = create(:conference,
+                 short_title: 'b', start_date: Time.now + 21.days,
+                 end_date: Time.now + 28.days)
+      c = create(:conference,
+                 short_title: 'c', start_date: Time.now + 21.days,
+                 end_date: Time.now + 28.days)
+      create(:conference,
+             short_title: 'd', start_date: Time.now - 1.year,
+             end_date: Time.now - 360.days)
+      result = [a, b, c]
+
+      expect(Conference.get_active_conferences_for_dashboard).to match_array(result)
+    end
+
+    it 'returns the last two past conferences if there are no pending conferences' do
+      subject.start_date = Time.now - 10.days
+      subject.end_date = Time.now - 5.days
+      c = create(:conference,
+                 short_title: 'c', start_date: Time.now - 1.year,
+                 end_date: Time.now - 360.days)
+      result = [subject, c]
+
+      expect(Conference.get_active_conferences_for_dashboard).to match_array(result)
+    end
+
+    it 'returns empty array if there are no conferences' do
+      expect(Conference.get_active_conferences_for_dashboard).to match_array([])
+    end
+  end
+
+  describe '#get_deactive_conferences' do
+    it 'returns all conferences without the active conferences' do
+      a = create(:conference,  start_date: Time.now - 3.year, end_date: Time.now - 1080.days)
+      b = create(:conference,  start_date: Time.now - 2.year, end_date: Time.now - 720.days)
+      c = create(:conference, start_date: Time.now - 1.year, end_date: Time.now - 360.days)
+      result = [a, b, c]
+
+      expect(Conference.get_conferences_without_active_for_dashboard([subject])).
+          to match_array(result)
+    end
+
+    it 'returns all conferences if there are no active conferences' do
+      subject.start_date = Time.now - 10.days
+      subject.end_date = Time.now - 5.days
+      expect(Conference.get_conferences_without_active_for_dashboard([])).to match_array([subject])
+    end
+
+    it 'returns empty array if there are no conferences' do
+      expect(Conference.get_conferences_without_active_for_dashboard([])).to match_array([])
+    end
+
+    it 'returns no conferences if all conferences are pending' do
+      expect(Conference.get_conferences_without_active_for_dashboard([subject])).to match_array([])
+    end
+
+    it 'return no conferences if there are only two conferences and no pending' do
+      a = create(:conference,  start_date: Time.now - 2.year, end_date: Time.now - 720.days)
+      b = create(:conference, start_date: Time.now - 1.year, end_date: Time.now - 360.days)
+      expect(Conference.get_conferences_without_active_for_dashboard([a, b])).to match_array([])
+    end
+  end
+
+  describe '#get_submission_line_colors' do
+    it ' returns correct values' do
+      result = []
+      result.push(short_title: 'Submitted', color: 'blue')
+      result.push(short_title: 'Confirmed', color: 'green')
+      result.push(short_title: 'Unconfirmed', color: 'orange')
+      expect(Conference.get_event_state_line_colors).to eq(result)
+    end
+  end
+
   describe '#event_distribution' do
 
     before(:each) do