Intial event conflicts implementation

app/assets/javascripts/management/application.js

@@ -4,4 +4,5 @@
 //= require bootstrap-sprockets
 //= require raphael
 //= require morris
+//= require chroma-js/chroma
 //= require_directory .

app/assets/javascripts/management/conferences.js.coffee

@@ -1,11 +1,20 @@
+conflictsScale=chroma.scale(['#469408', '#D9230F']).mode('lab');
+
 $ ->
   $('.cfp-toggle').click ->
     $(this).addClass("disabled")
-  Morris.Line
-    element: 'submissions-chart'
-    data: $('#submissions-chart').data('submissions')
-    xkey: 'created_at'
-    ykeys: ['all_submissions', 'all_confirmations']
-    labels: ['Submissions', 'Confirmed submissions']
-    lineColors: ['#D9230F', '#469408']
-    resize: true
+  if $('#submissions-chart').length > 0
+    Morris.Line
+      element: 'submissions-chart'
+      data: $('#submissions-chart').data('submissions')
+      xkey: 'created_at'
+      ykeys: ['all_submissions', 'all_confirmations']
+      labels: ['Submissions', 'Confirmed submissions']
+      lineColors: ['#D9230F', '#469408']
+      resize: true
+  $('[data-conflicts]').each (e) ->
+    most_conflicts = parseInt($(this).data('most-conflicts'))
+    conflicts = parseInt($(this).data('conflicts'))
+    least_conflicts = parseInt($(this).data('least-conflicts'))
+    console.log 1.0 * (conflicts - least_conflicts) / (most_conflicts - least_conflicts)
+    $(this).css('background-color', conflictsScale(1.0 * (conflicts - least_conflicts) / (most_conflicts - least_conflicts)))

app/helpers/events_helper.rb

@@ -9,7 +9,7 @@ module EventsHelper
         link_to icon('user-plus', participant.email),
           new_management_conference_personal_profile_path(conference_id: event.conference.id,
                                                           user_id: participant.id),
-          title: t('.create_profile'), class: 'bg-danger'
+          title: t('management.events.event.create_profile'), class: 'bg-danger'
       end
     end.join(', ').html_safe
   end

app/models/conference.rb

@@ -14,6 +14,9 @@ class Conference < ActiveRecord::Base
   has_many :halls
   has_many :event_types
   has_many :events
+  has_many :approved_events,
+    -> { joins(:proposition).where(propositions: {status: Proposition.statuses[:approved]}) }, class_name: 'Event'
+  has_many :conflict_counts, through: :events
   has_many :volunteer_teams
   has_many :volunteers
   has_one :call_for_participation, dependent: :destroy
@@ -48,6 +51,28 @@ class Conference < ActiveRecord::Base
     vote_data_endpoint.present?
   end
 
+  def update_conflict_data!
+    update_vote_data! or raise ActiveRecord::Rollback
+    events.all? { |event| event.update_conflict_data(false) } or raise ActiveRecord::Rollback
+  end
+
+  def most_conflicts
+    conflict_counts.order(number_of_conflicts: :desc).first.try(:number_of_conflicts) || 0
+  end
+
+  def least_conflicts
+    conflict_counts.unscoped.order(number_of_conflicts: :asc).first.try(:number_of_conflicts) || 0
+  end
+
+  def most_conflicts_between_approved_events
+    conflict_counts.unscoped.where(left: approved_events, right: approved_events).order(number_of_conflicts: :desc).first.try(:number_of_conflicts) || 0
+  end
+
+  def least_conflicts_between_approved_events
+    conflict_counts.unscoped.where(left: approved_events, right: approved_events).order(number_of_conflicts: :asc).first.try(:number_of_conflicts) || 0
+  end
+
+
   private
 
   def planned_cfp_end_date_is_before_start_date
@@ -75,9 +100,14 @@ class Conference < ActiveRecord::Base
       @ranking ||= remote_summary_data['ranking'].map { |ranking_entry| EventRanking.new ranking_entry }
     end
 
+    def conflicts
+      @conflicts ||= remote_summary_data['conflicts'].map { |conflicts_entry| ConflictsForEvent.new conflicts_entry }
+    end
+
     def save
       conference.transaction do
         conference.number_of_ballots_cast = number_of_ballots
+        conflicts.all?(&:save) or raise ActiveRecord::Rollback
         ranking.all?(&:save) or raise ActiveRecord::Rollback
         conference.touch :vote_data_updated_at
         conference.save or raise ActiveRecord::Rollback
@@ -97,13 +127,28 @@ class Conference < ActiveRecord::Base
                                           end.body)
     end
 
+    class ConflictsForEvent
+      include ActiveModel::Model
+
+      attr_accessor :talk_id, :conflicts
+
+      def save
+        @event = Event.find(talk_id)
+        @event.conflict_counts.destroy_all or raise ActiveRecord::Rollback
+        conflicts.all? do |right_event_id, number_of_conflicts|
+          ConflictCount.create left_id: talk_id, right_id: right_event_id, number_of_conflicts: number_of_conflicts
+        end or raise ActiveRecord::Rollback
+      end
+    end
+
+
     class EventRanking
       include ActiveModel::Model
 
       attr_accessor :talk_id, :votes, :place
 
       def save
-        Event.find(talk_id).update(number_of_votes: votes, rank: place)
+        Event.where(id: talk_id).update_all(number_of_votes: votes, rank: place)
       end
     end
   end

app/models/conflict_count.rb

@@ -0,0 +1,5 @@
+class ConflictCount < ActiveRecord::Base
+  belongs_to :left, class_name: 'Event'
+  belongs_to :right, class_name: 'Event'
+  has_one :conference, through: :left
+end

app/models/event.rb

@@ -9,6 +9,7 @@ class Event < ActiveRecord::Base
   has_many :pending_participations, ->() { pending }, class_name: 'Participation'
   has_many :approved_participations, ->() { approved }, class_name: 'Participation'
   has_many :participants, through: :approved_participations
+  has_many :conflict_counts, -> { order(number_of_conflicts: :desc) }, foreign_key: :left_id
 
   belongs_to :event_type
 

app/views/management/events/show.html.slim

@@ -64,3 +64,51 @@
   .col-xs-12
     h3 = Event.human_attribute_name :participants
     = render partial: 'speaker', collection: @event.participants
+
+- if @conference.has_vote_results? or @conference.has_voting_endpoint?
+.row
+  .col-xs-12
+    h2
+      = t '.conflicts'
+      small< = t '.between_approved_events'
+    .panel.panel-default
+      table.table.table-striped.table-hover.record-table
+        - if @conference.has_vote_results? and @conference.approved_events.count > 2
+          thead
+            tr
+              th.text-right
+                = t '.percent'
+              th
+                = Event.model_name.human.mb_chars.capitalize
+              th
+        tbody
+          - if @conference.has_vote_results?
+            - if @conference.approved_events.count > 2
+              - @event.conflict_counts.where(right_id: @conference.approved_events.pluck(:id)).includes(:right).each do |conflict_count|
+                - conflict_percent = Rational(conflict_count.number_of_conflicts, @conference.number_of_ballots_cast)
+                tr
+                  td.text-right
+                    .large
+                      span.label.label-success data-conflicts="#{conflict_count.number_of_conflicts}" data-most-conflicts="#{@conference.most_conflicts_between_approved_events}" data-least-conflicts="#{@conference.least_conflicts_between_approved_events}"
+                        = number_to_percentage(conflict_percent * 100, strip_insignificant_zeros: true, precision: 2)
+                  td
+                    h4 = conflict_count.right.title
+                    h5  = conflict_count.right.subtitle
+                    = links_to_event_participants_for(conflict_count.right)
+
+                  td.actions
+                    = action_buttons @conference, conflict_count.right, [:show]
+            - else
+              tr
+                td colspan="20"
+                  = t '.no_approved_events'
+          - else
+            tr
+              td colspan="20"
+                = t 'management.conferences.vote_results.vote_data_never_updated'
+                = icon :refresh, t('management.conferences.vote_results.fetch_vote_results')
+      - if @conference.has_vote_results?
+        .panel-footer.text-right
+          .btn-group
+            = link_to update_vote_data_management_conference_path(@conference), method: :patch, class: ['btn', 'btn-primary'] do
+              = icon :refresh, t('management.conferences.vote_results.fetch_vote_results')

config/locales/bg.yml

@@ -51,8 +51,12 @@ bg:
         previous_event_propositions: 'Предишни предложения за събития'
         contacts: "Информация за контакт"
       show:
+        between_approved_events: "Между одобрени събития"
+        no_approved_events: "Няма достатъчно одобрени събития"
         rank: "Класиране"
         review: "Преглед на %{event_type} „%{event_title}“"
+        conflicts: "Конфликти"
+        percent: "Процент"
       index:
         all: "Всички"
         total: "%{current} от общо %{total}"

db/migrate/20161012185931_create_conflict_counts.rb

@@ -0,0 +1,11 @@
+class CreateConflictCounts < ActiveRecord::Migration
+  def change
+    create_table :conflict_counts do |t|
+      t.references :left, index: true
+      t.references :right, index: true
+      t.integer :number_of_conflicts
+    end
+
+    add_index :conflict_counts, [:left_id, :right_id], unique: true
+  end
+end

vendor/assets/javascripts/chroma-js/LICENSE

@@ -0,0 +1,28 @@
+chroma.js - JavaScript library for color conversions
+
+Copyright (c) 2011-2015, Gregor Aisch
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+1. Redistributions of source code must retain the above copyright notice, this
+   list of conditions and the following disclaimer.
+
+2. Redistributions in binary form must reproduce the above copyright notice,
+   this list of conditions and the following disclaimer in the documentation
+   and/or other materials provided with the distribution.
+
+3. The name Gregor Aisch may not be used to endorse or promote products
+   derived from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL GREGOR AISCH OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
+EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

vendor/assets/javascripts/chroma-js/LICENSE-colors

@@ -0,0 +1,22 @@
+
+chroma.js includes colors from colorbrewer2.org,
+which are released under the following license:
+
+
+Copyright (c) 2002 Cynthia Brewer, Mark Harrower, 
+and The Pennsylvania State University.
+
+Licensed under the Apache License, Version 2.0 (the "License"); 
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at	
+http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, 
+software distributed under the License is distributed on an 
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, 
+either express or implied. See the License for the specific 
+language governing permissions and limitations under the License.
+
+
+Named colors are taken from X11 Color Names.
+http://www.w3.org/TR/css3-color/#svg-color