Issue#15: Added Comment Notifications: notification_emails and comments view

app/controllers/admin/comments_controller.rb

@@ -0,0 +1,9 @@
+module Admin
+  class CommentsController < Admin::BaseController
+    load_and_authorize_resource
+
+    def index
+      @ordered_events = Event.order(:title).all
+    end
+  end
+end

app/controllers/admin/conference_controller.rb

@@ -27,7 +27,6 @@ module Admin
       @recent_users = User.limit(5).order(created_at: :desc)
       @recent_events = Event.limit(5).order(created_at: :desc)
       @recent_registrations = Registration.limit(5).order(created_at: :desc)
-
       @top_submitter = Conference.get_top_submitter
 
       @submissions = {}

app/helpers/application_helper.rb

@@ -278,4 +278,8 @@ module ApplicationHelper
       new_user_registration_path
     end
   end
+
+  def unread_notifications(user)
+    @unread_notifications = Comment.find_since_last_login(user)
+  end
 end

app/mailers/mailbot.rb

@@ -80,6 +80,22 @@ class Mailbot < ActionMailer::Base
     end
   end
 
+  def send_notification_email_for_comment(comment)
+    @comment = comment
+    @event = @comment.commentable
+    @conference = @event.conference
+    recipients = User.comment_notifiable(@conference) # with scope
+    recipients.each do |user|
+      @user = user
+      mail(to: @user.email,
+           from: @conference.contact.email,
+           reply_to: @conference.contact.email,
+           template_path: 'admin/emails',
+           template_name: 'comment_template',
+           subject: "New comment has been posted for #{@event.title}")
+    end
+  end
+
   def build_email(conference, to, subject, body)
     mail(to: to,
          from: conference.contact.email,

app/models/ability.rb

@@ -137,6 +137,7 @@ class Ability
     can :manage, Sponsor, conference_id: conf_ids_for_organizer
     can :manage, SponsorshipLevel, conference_id: conf_ids_for_organizer
     can :manage, Ticket, conference_id: conf_ids_for_organizer
+    can :manage, Comment, conference_id: conf_ids_for_organizer
   end
 
   def signed_in_with_cfp_role(user)
@@ -155,6 +156,7 @@ class Ability
     can :manage, CallForPaper, conference_id: conf_ids_for_cfp
     can :manage, Commercial, commercialable_type: 'Event',
                              commercialable_id: Event.where(conference_id: conf_ids_for_cfp).pluck(:id)
+    can :manage, Comment, conference_id: conf_ids_for_cfp
   end
 
   def signed_in_with_info_desk_role(user)

app/models/comment.rb

@@ -3,6 +3,7 @@ class Comment < ActiveRecord::Base
   attr_accessible :commentable, :body, :user_id
   validates_presence_of :body
   validates_presence_of :user
+  after_create :send_notification
 
   # NOTE: install the acts_as_votable plugin if you
   # want user to vote on the quality of comments.
@@ -40,9 +41,18 @@ class Comment < ActiveRecord::Base
     where(commentable_type: commentable_str.to_s, commentable_id: commentable_id).order('created_at DESC')
   }
 
+  scope :find_since_last_login, lambda { |user|
+    where(created_at: (user.last_sign_in_at..Time.now)).order(created_at: :desc)
+  }
   # Helper class method to look up a commentable object
   # given the commentable class name and id
   def self.find_commentable(commentable_str, commentable_id)
     commentable_str.constantize.find(commentable_id)
   end
+
+  private
+
+  def send_notification
+    Mailbot.delay.send_notification_email_for_comment(self)
+  end
 end

app/models/email_settings.rb

@@ -49,7 +49,7 @@ class EmailSettings < ActiveRecord::Base
       h['registration_end_date'] = conference.registration_period.end_date
     end
 
-    if !event.nil?
+    if event
       h['eventtitle'] = event.title
       h['proposalslink'] = Rails.application.routes.url_helpers.conference_proposal_index_url(
                            conference.short_title, host: CONFIG['url_for_emails'])
@@ -67,6 +67,8 @@ class EmailSettings < ActiveRecord::Base
     parse_template(conf_update_template, values)
   end
 
+  private
+
   def parse_template(text, values)
     values.each do |key, value|
       if value.kind_of?(Date)

app/models/user.rb

@@ -11,6 +11,9 @@ class User < ActiveRecord::Base
 
   before_create :setup_role
 
+  # add scope
+  scope :comment_notifiable, ->(conference) {joins(:roles).where('roles.name IN (?)', [:organizer, :cfp]).where('roles.resource_id = ?', conference.id)}
+
   # Include default devise modules. Others available are:
   # :token_authenticatable, :confirmable,
   # :lockable, :timeoutable and :omniauthable

app/views/admin/comments/_all_comments.html.haml

@@ -0,0 +1,16 @@
+.panel.well
+  -@ordered_events.each do |event|
+    - if event.comment_threads.count > 0
+      %panel
+        %panel.panel-header
+          %h4.title
+            = link_to event.title, admin_conference_event_path(event.conference.short_title, event)
+          %hr
+        -event.comment_threads.order(created_at: :desc).each do |comment|
+          %panel-body
+            %ul.list-unstyled
+              %li= comment.body
+              %ul.list-inline
+                %li Posted by: #{comment.user.name}
+                %li Created at: #{comment.created_at}
+        %hr

app/views/admin/comments/_posted_comments.html.haml

@@ -0,0 +1,14 @@
+.panel.well
+  -@ordered_events.each do |event|
+    - if event.comment_threads.find_comments_by_user(current_user).count > 0
+      %panel
+        %panel.panel-header
+          %h4.title
+            = link_to event.title, admin_conference_event_path(event.conference.short_title, event)
+          %hr
+        -event.comment_threads.find_comments_by_user(current_user).each do |comment|
+          %panel-body
+            %ul.list-unstyled
+              %li= comment.body
+              %li Created at: #{comment.created_at}
+        %hr

app/views/admin/comments/_unread_comments.html.haml

@@ -0,0 +1,16 @@
+.panel.well
+  -@ordered_events.each do |event|
+    - if event.comment_threads.find_since_last_login(current_user).count > 0
+      %panel
+        %panel.panel-header
+          %h4.title
+            = link_to event.title, admin_conference_event_path(event.conference.short_title, event)
+          %hr
+        -event.comment_threads.find_since_last_login(current_user).each do |comment|
+          %panel-body
+            %ul.list-unstyled
+              %li= comment.body
+              %ul.list-inline
+                %li Posted by: #{comment.user.name}
+                %li Created at: #{comment.created_at}
+        %hr

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

@@ -0,0 +1,23 @@
+%h1 Comments
+.row
+  .col-lg-12
+    %ul.nav.nav-tabs#commentsTable
+      %li.active
+        %a{:href=>"#unread_comments", "data-toggle"=>"tab"}
+          %span.fa.fa-comment
+          Unread comments
+      %li
+        %a{:href=>"#all_comments", "data-toggle"=>"tab"}
+          %span.fa.fa-comments-o
+          Comments
+      %li
+        %a{:href=>"#posted_comments", "data-toggle"=>"tab"}
+          %span.fa.fa-pencil
+          Posted Comments
+    .tab-content
+      .tab-pane.active#unread_comments
+        = render partial: 'unread_comments'
+      .tab-pane#all_comments
+        = render partial: 'all_comments'
+      .tab-pane#posted_comments
+        = render partial: 'posted_comments'

app/views/admin/emails/comment_template.text.erb

@@ -0,0 +1,10 @@
+Dear <%= @user.name %>,
+
+User <%= @comment.user.name %> posted a new comment for event <%= @event.title %> of <%= @conference.short_title %> .
+
+"<%= @comment.body %>"
+
+To reply to this comment, please go to <%=  h( admin_conference_event_url(@conference.short_title, @event)) %>
+
+Best wishes,
+<%= @conference.short_title %> Team

app/views/layouts/_navigation.html.haml

@@ -13,17 +13,32 @@
         %ul.nav.navbar-nav#splash-nav
           = content_for :splash_nav
       -if user_signed_in?
-        %ul.nav.navbar-nav.navbar-right
-          %li.dropdown
-            %a.dropdown-toggle{"data-toggle" => "dropdown", :href => "#", id: "current-user-detail"}
-              - if not current_user.name.blank?
-                #{current_user.name}
-              -else
-                #{current_user.email}
-              = image_tag(current_user.gravatar_url(size: '18'), title: "Yo #{current_user.name}!", :alt => '')
-              %b.caret
-            %ul.dropdown-menu
-              = render 'layouts/user_menu'
+        .btn-group.pull-right
+          %ul.nav.navbar-nav.navbar-right
+            %li.dropdown
+              %a.dropdown-toggle{"data-toggle" => "dropdown", :href => "#", id: "current-user-detail"}
+                - if not current_user.name.blank?
+                  #{current_user.name}
+                -else
+                  #{current_user.email}
+                = image_tag(current_user.gravatar_url(size: '18'), title: "Yo #{current_user.name}!", :alt => '')
+                %b.caret
+              %ul.dropdown-menu
+                = render 'layouts/user_menu'
+          - if can? :manage, Conference
+            %ul.nav.navbar-nav.navbar-right
+              %li.dropdown
+                %a.dropdown-toggle{"data-toggle" => "dropdown", :href => "#", id: "unread-comments-preview"}
+                  - if unread_notifications(current_user)
+                    Notifications (#{unread_notifications(current_user).length})
+                    %b.caret
+                    %ul.dropdown-menu
+                      - unread_notifications(current_user).limit(5).each do |unread_comment|
+                        %li= link_to("New comment for: #{unread_comment.commentable.title}", admin_conference_event_path(unread_comment.commentable.conference.short_title, unread_comment.commentable_id))
+                      %li.divider
+                      %li= link_to 'See comments', admin_comments_path
+                  -else
+                    No Notifications
       - else
         %ul.nav.navbar-nav.navbar-right
           - if CONFIG['authentication']['ichain']['enabled']

app/views/layouts/_unread_comment.html.haml

@@ -0,0 +1,2 @@
+%li= link_to("New comment for: #{unread_comment.commentable.title}", admin_conference_event_path(unread_comment.commentable.conference.short_title, unread_comment.commentable_id))
+

config/routes.rb

@@ -15,6 +15,7 @@ Osem::Application.routes.draw do
   namespace :admin do
     resources :users
     resources :people
+    resources :comments
     resources :conference do
       member do
         get :roles