Refactor and tests.

app/controllers/communities_controller.rb

@@ -22,4 +22,8 @@ class CommunitiesController < ApplicationController
   def load_topics
     @topics = @community.topics.send("sort_by_#{@order}").page(params[:page])
   end
+
+  def load_participants
+    @participants = @community.participants
+  end
 end

app/controllers/topics_controller.rb

@@ -1,7 +1,9 @@
 class TopicsController < ApplicationController
   include CommentableActions
+  include FlagActions
 
-  before_action :set_community
+  before_action :load_community
+  before_action :load_topic, only: [:show, :edit, :update]
 
   has_orders %w{most_voted newest oldest}, only: :show
 
@@ -13,7 +15,6 @@ class TopicsController < ApplicationController
 
   def create
     @topic = Topic.new(topic_params.merge(author: current_user, community_id: params[:community_id]))
-
     if @topic.save
       redirect_to community_path(@community), notice: I18n.t('flash.actions.create.topic')
     else
@@ -22,20 +23,17 @@ class TopicsController < ApplicationController
   end
 
   def show
-    @topic = Topic.find(params[:id])
     @commentable = @topic
     @comment_tree = CommentTree.new(@commentable, params[:page], @current_order)
     set_comment_flags(@comment_tree.comments)
   end
 
   def edit
-    @topic = Topic.find(params[:id])
   end
 
   def update
-    @topic = Topic.find(params[:id])
     if @topic.update(topic_params)
-      redirect_to community_path(@community), notice: t('topic.update.notice')
+      redirect_to community_path(@community), notice: t('flash.actions.update.topic')
     else
       render :edit
     end
@@ -44,10 +42,14 @@ class TopicsController < ApplicationController
   private
 
   def topic_params
-    params.require(:topic).permit(:title, :community_id, :description_as_comment)
+    params.require(:topic).permit(:title, :description)
   end
 
-  def set_community
+  def load_community
     @community = Community.find(params[:community_id])
   end
+
+  def load_topic
+    @topic = Topic.find(params[:id])
+  end
 end

app/helpers/comments_helper.rb

@@ -50,6 +50,8 @@ module CommentsHelper
       legislation_process_question_path(commentable.process, commentable)
     when "Legislation::Annotation"
       legislation_process_draft_version_annotation_path(commentable.draft_version.process, commentable.draft_version, commentable)
+    when "Topic"
+      community_topic_path(comment.commentable.community, comment.commentable)
     else
       commentable
     end

app/helpers/topics_helper.rb

@@ -0,0 +1,11 @@
+module TopicsHelper
+
+  def disabled_create_topic
+    "disabled" unless current_user
+  end
+
+  def disabled_info_title
+    t("community.show.sidebar.disabled_info_title") unless current_user
+  end
+
+end

app/models/abilities/administrator.rb

@@ -33,7 +33,7 @@ module Abilities
       can :unmark_featured, Debate
 
       can :comment_as_administrator, [Debate, Comment, Proposal, Poll::Question, Budget::Investment,
-                                      Legislation::Question, Legislation::Annotation]
+                                      Legislation::Question, Legislation::Annotation, Topic]
 
       can [:search, :create, :index, :destroy], ::Administrator
       can [:search, :create, :index, :destroy], ::Moderator

app/models/abilities/moderator.rb

@@ -6,7 +6,7 @@ module Abilities
       merge Abilities::Moderation.new(user)
 
       can :comment_as_moderator, [Debate, Comment, Proposal, Budget::Investment, Poll::Question,
-                                  Legislation::Question, Legislation::Annotation]
+                                  Legislation::Question, Legislation::Annotation, Topic]
     end
   end
 end

app/models/community.rb

@@ -3,4 +3,7 @@ class Community < ActiveRecord::Base
   has_one :investment
   has_many :topics
 
+  def participants
+    User.community_participants(self)
+  end
 end

app/models/topic.rb

@@ -1,4 +1,6 @@
 class Topic < ActiveRecord::Base
+  include Flaggable
+
   acts_as_paranoid column: :hidden_at
   include ActsAsParanoidAliases
 
@@ -7,15 +9,12 @@ class Topic < ActiveRecord::Base
 
   has_many :comments, as: :commentable
 
-  after_create :associate_comment
+  validates :title, presence: true
+  validates :description, presence: true
+  validates :author, presence: true
 
   scope :sort_by_newest, -> { order(created_at: :desc) }
   scope :sort_by_oldest, -> { order(created_at: :asc) }
   scope :sort_by_most_commented,   -> { reorder(comments_count: :desc) }
 
-  private
-
-  def associate_comment
-    Comment.create(commentable: self, user: self.author, body: self.description_as_comment)
-  end
 end

app/models/user.rb

@@ -315,7 +315,13 @@ class User < ActiveRecord::Base
 
   def self.community_participants(community)
     topics_ids = community.topics.pluck(:id)
-    User.joins(:comments).where("comments.commentable_id IN (?) and comments.commentable_type = 'Topic'", topics_ids)
+    users_who_commented = User.joins(:comments).where("comments.commentable_id IN (?) and comments.commentable_type = 'Topic'", topics_ids).uniq
+
+    author_ids = community.topics.pluck(:author_id)
+    users_who_authors = User.where("users.id IN (?)", author_ids)
+
+    users_participants = users_who_commented + users_who_authors
+    users_participants.uniq
   end
 
   private

app/views/communities/show.html.erb

@@ -13,8 +13,8 @@
 
     <aside class="show-for-small-only small-12 column">
       <div class="sidebar-divider"></div>
-      <h2><%= t("community.sidebar.topic.title") %></h2>
+      <h2><%= t("community.show.sidebar.participate") %></h2>
-      <%= link_to t("community.sidebar.topic.new_topic"), new_community_topic_path(@community.id), class: 'button expanded' %>
+      <%= link_to t("community.show.sidebar.new_topic"), new_community_topic_path(@community.id), class: "button expanded #{disabled_create_topic}" %>
     </aside>
 
     <div class="small-12 medium-9 column">
@@ -26,8 +26,8 @@
 
     <aside class="small-12 medium-3 hide-for-small-only column">
       <div class="sidebar-divider"></div>
-      <h2><%= t("community.sidebar.topic.title") %></h2>
+      <h2><%= t("community.show.sidebar.participate") %></h2>
-      <%= link_to t("community.sidebar.topic.new_topic"), new_community_topic_path(@community.id), class: 'button expanded' %>
+      <%= link_to t("community.show.sidebar.new_topic"), new_community_topic_path(@community.id), class: "button expanded #{disabled_create_topic}", title: "#{disabled_info_title}" %>
     </aside>
   </div>
 </div>
@@ -35,9 +35,9 @@
 <div class="row column communities-participant">
   <ul class="tabs" data-tabs id="communities-show-tabs">
     <li class="tabs-title is-active">
-      <%= link_to "#tab-participantes" do %>
+      <%= link_to "#tab-participants" do %>
         <h3>
-          <%= t("community.tab.participant") %>
+          <%= t("community.show.tab.participants") %>
           <span class="js-comments-count">(<%= @participants.count %>)</span>
         </h3>
       <% end %>

app/views/topics/_comments.html.erb

@@ -3,9 +3,8 @@
 
     <div id="comments" class="small-12 column">
       <%= render 'shared/wide_order_selector', i18n_namespace: "comments" %>
-      <!-- <p class="first-comment"><%= @topic.description_as_comment %></p> -->
-      <% @comment_tree.root_comments.each do |comment| %>
 
+      <% @comment_tree.root_comments.each do |comment| %>
         <%= render 'comments/comment', comment: comment  %>
       <% end %>
 

app/views/topics/_form.html.erb

@@ -1,11 +1,15 @@
 <%= form_for([@community, @topic]) do |f| %>
 
+  <%= render 'shared/errors', resource: @topic %>
+
     <%= render 'shared/errors', resource: @topic %>
 
     <div class="row">
       <div class="small-12 column">
         <%= f.label :title, t("community.topic.form.topic_title") %>
         <%= f.text_field :title, label: false %>
+        <%= f.label :description, t("community.topic.form.topic_description") %>
+        <%= f.text_area :description, label: false %>
       </div>
 
     <div class="actions small-12 column">

app/views/topics/_recommendations.html.erb

@@ -0,0 +1,9 @@
+<div class="small-12 medium-3 column">
+  <span class="icon-proposals float-right"></span>
+  <h2><%= t("community.topic.sidebar.recommendations_title") %></h2>
+  <ul class="recommendations">
+    <li><%= t("community.topic.sidebar.recommendation_one") %></li>
+    <li><%= t("community.topic.sidebar.recommendation_two") %></li>
+    <li><%= t("community.topic.sidebar.recommendation_three") %></li>
+  </ul>
+</div>

app/views/topics/_topics.html.erb

@@ -11,7 +11,7 @@
         <h3><%= link_to topic.title, community_topic_path(@community, topic) %></h3>
         <p class="topic-info">
           <span class="icon-comments"></span>&nbsp;
-          <%= link_to t("proposals.proposal.comments", count: topic.comments_count), community_topic_path(@community, topic, anchor: "comments") %>
+          <%= link_to t("community.show.topic.comments", count: topic.comments_count), community_topic_path(@community, topic, anchor: "comments") %>
           <span class="bullet">&nbsp;&bull;&nbsp;</span>
           <%= I18n.l topic.created_at.to_date %>
           <span class="bullet">&nbsp;&bull;&nbsp;</span>
@@ -20,11 +20,11 @@
       </div>
       <div class="small-2 column text-right">
         <% if topic.author == current_user %>
-          <%= link_to t("community.topic.edit_button"), edit_community_topic_path(@community.id, topic), class: 'button small hollow' %>
+          <%= link_to t("community.show.topic.edit_button"), edit_community_topic_path(@community.id, topic), class: 'button small hollow' %>
         <% end %>
       </div>
     </div>
   <% end %>
 <% else %>
-  <h4><%= t("community.create_first_community_theme") %></h4>
+  <h4><%= t("community.show.create_first_community_topic") %></h4>
 <% end %>

app/views/topics/edit.html.erb

@@ -2,17 +2,9 @@
 
   <div class="small-12 medium-9 column">
     <%= render "shared/back_link" %>
-    <h1><%= t("topic.edit.editing") %></h1>
+    <h1><%= t("community.topic.edit") %></h1>
     <%= render "form" %>
   </div>
 
-  <div class="small-12 medium-3 column">
+  <%= render "recommendations" %>
-    <span class="icon-proposals float-right"></span>
-    <h2><%= t("community.sidebar.topic.recommendations_title") %></h2>
-    <ul class="recommendations">
-      <li><%= t("community.sidebar.topic.recommendation_one") %></li>
-      <li><%= t("community.sidebar.topic.recommendation_two") %></li>
-      <li><%= t("community.sidebar.topic..recommendation_three") %></li>
-    </ul>
-  </div>
 </div>

app/views/topics/new.html.erb

@@ -2,19 +2,9 @@
   <div class="small-12 medium-9 column">
     <%= render "shared/back_link" %>
     <h1><%= t("community.topic.create") %></h1>
-
+    <%= render 'form' %>
-    <%= render '/topics/form' %>
-    <%#= render '/topics/form', form_url: budget_investments_path(@budget) %>
   </div>
 
-  <div class="small-12 medium-3 column">
+  <%= render "recommendations" %>
-    <span class="icon-proposals float-right"></span>
-    <h2><%= t("community.sidebar.topic.recommendations_title") %></h2>
-    <ul class="recommendations">
-      <li><%= t("community.sidebar.topic.recommendation_one") %></li>
-      <li><%= t("community.sidebar.topic.recommendation_two") %></li>
-      <li><%= t("community.sidebar.topic..recommendation_three") %></li>
-    </ul>
-  </div>
 
 </div>

app/views/topics/show.html.erb

@@ -6,6 +6,7 @@
     <p><%= t("community.topic.show.community_of_the_proposal") %> <strong><%= @community.proposal.title %></strong></p>
     <h1><%= @topic.title %></h1>
     <div class="topic-info">
+      <p><%= @topic.description %></p>
       <%= render '/shared/author_info', resource: @topic %>
 
       <span class="bullet">&nbsp;&bull;&nbsp;</span>

config/i18n-tasks.yml

@@ -37,6 +37,7 @@ data:
     - config/locales/%{locale}/officing.yml
     - config/locales/%{locale}/budgets.yml
     - config/locales/%{locale}/legislation.yml
+    - config/locales/%{locale}/community.yml
     - config/locales/%{locale}/documents.yml
 
   # Locale files to write new keys to, based on a list of key pattern => file rules. Matched from top to bottom:

config/locales/en/community.yml

@@ -1,41 +1,48 @@
 en:
   community:
-    create_first_community_theme: Create the first community theme
-    join_the_community_of_users: Join the community of users, give your opinion.
-    tab:
-      participant: Participants
-
     sidebar:
-      title: Community
+      title: Comunidad
-      description: Join the community of users, give your opinion.
+      description: Partecipa a la comunidad de usuarios, da tu opinión.
       button_to_access: Access the community
-
-      topic:
-        title: Participants
-        new_topic: Create topic
-        edit_topic: Edit theme
-        recommendations_title: Recommendations to create a theme
-        recommendation_one: Do not write the topic title or whole sentences in capital letters. On the internet that is considered shouting. And no one likes to be yelled at.
-        recommendation_two: Any topic or comment that implies an illegal action will be eliminated, also those that intend to sabotage the spaces of the subject, everything else is allowed.
-        recommendation_three: Enjoy this space, the voices that fill it, it's yours too
-        without_topics: Create the first community topic
-
     show:
-      title: User community
+      title: Proposal community
       description: Participate in the community of this proposal
+      create_first_community_topic: Create the first community topic
+      tab:
         participants: Participants
-
+      sidebar:
+        participate: Participate
+        new_topic: Create topic
+        disabled_info_title: You need to be logged to create a new topic
       topic:
-      create: Create a theme
         edit_button: Edit
+        comments:
+          one: 1 comment
+          other: "%{count} comments"
+          zero: No comments
+    topic:
+      create: Create a topic
+      edit: Edit Topic
       form:
         topic_title: Topic Title
-        topic_description_as_comment: Initial comment
+        topic_description: Description
         new:
-          submit_button: Create theme
+          submit_button: Create topic
         edit:
-          submit_button: Edit theme
+          submit_button: Edit topic
+        create:
+          submit_button: Create topic
+        update:
+          submit_button: Update topic
       show:
         community_of_the_proposal: Community of the proposal
         tab:
           comments_tab: Comments
+      sidebar:
+        recommendations_title: Recommendations to create a topic
+        recommendation_one: Do not write the topic title or whole sentences in capital letters. On the internet that is considered shouting. And no one likes to be yelled at.
+        recommendation_two: Any topic or comment that implies an illegal action will be eliminated, also those that intend to sabotage the spaces of the subject, everything else is allowed.
+        recommendation_three: Enjoy this space, the voices that fill it, it's yours too.
+  topics:
+    show:
+      login_to_comment: You must %{signin} or %{signup} to leave a comment.

config/locales/en/general.yml

@@ -179,6 +179,7 @@ en:
     verification/sms: phone
     signature_sheet: Signature sheet
     document: Document
+    topic: Topic
   geozones:
     none: All city
     all: All scopes

config/locales/en/responders.yml

@@ -13,6 +13,7 @@ en:
         spending_proposal: "Spending proposal created successfully. You can access it from %{activity}"
         budget_investment: "Budget Investment created successfully."
         signature_sheet: "Signature sheet created successfully"
+        topic: "Topic created successfully."
       save_changes:
         notice: Changes saved
       update:
@@ -23,6 +24,7 @@ en:
         proposal: "Proposal updated successfully."
         spending_proposal: "Investment project updated succesfully."
         budget_investment: "Investment project updated succesfully."
+        topic: "Topic updated successfully."
       destroy:
         spending_proposal: "Spending proposal deleted succesfully."
         budget_investment: "Investment project deleted succesfully."

config/locales/es/community.yml

@@ -1,39 +1,48 @@
 es:
   community:
-    create_first_community_theme: Crea el primer tema de la comunidad
-    join_the_community_of_users: Partecipa a la comunidad de usuarios, da tu opinión.
-    tab:
-      participant: Participantes
-
     sidebar:
       title: Comunidad
       description: Partecipa a la comunidad de usuarios, da tu opinión.
       button_to_access: Acceder a la comunidad
-      topic:
-        title: Participa
-        new_topic: Crea un tema
-        recommendations_title: Recomendaciones para crear un tema
-        recommendation_one: No escribas el título del tema o frases enteras en mayúsculas. En internet eso se considera gritar. Y a nadie le gusta que le griten.
-        recommendation_two: Cualquier tema o comentario que implique una acción ilegal será eliminada, también las que tengan la intención de sabotear los espacios del tema, todo lo demás está permitido.
-        recommendation_three: Disfruta de este espacio, de las voces que lo llenan, también es tuyo
-        without_topics: Crea el primer tema de la comunidad
-
     show:
-      title: Comunidad de usuarios
+      title: Comunidad de la propuesta
       description: Participa en la comunidad de esta propuesta
+      create_first_community_topic: Crea el primer tema de la comunidad
+      tab:
         paricipants: Participantes
-
+      sidebar:
+        participate: Participa
+        new_topic: Crea un tema
+        disabled_info_title: Necesitas estar logueado para crear un nuevo tema
+      topic:
+        edit_button: Editar
+        comments:
+          one: 1 Comentario
+          other: "%{count} Comentarios"
+          zero: Sin comentarios
     topic:
       create: Crear un tema
-      edit_button: Editar
+      edit: Editar tema
       form:
         topic_title: Titulo del tema
-        topic_description_as_comment: Comentario inicial
+        topic_description: Descripción
         new:
           submit_button: Crear tema
         edit:
           submit_button: Guardar cambios
+        create:
+          submit_button: Crear tema
+        update:
+          submit_button: Actualizar tema
       show:
         community_of_the_proposal: Comunidad de la propuesta
         tab:
           comments_tab: Comentarios
+      sidebar:
+        recommendations_title: Recomendaciones para crear un tema
+        recommendation_one: No escribas el título del tema o frases enteras en mayúsculas. En internet eso se considera gritar. Y a nadie le gusta que le griten.
+        recommendation_two: Cualquier tema o comentario que implique una acción ilegal será eliminada, también las que tengan la intención de sabotear los espacios del tema, todo lo demás está permitido.
+        recommendation_three: Disfruta de este espacio, de las voces que lo llenan, también es tuyo
+  topics:
+    show:
+      login_to_comment: Necesitas %{signin} o %{signup} para comentar.

config/locales/es/general.yml

@@ -179,6 +179,7 @@ es:
     verification/sms: el teléfono
     signature_sheet: la hoja de firmas
     document: el documento
+    topic: Tema
   geozones:
     none: Toda la ciudad
     all: Todos los ámbitos de actuación

config/locales/es/responders.yml

@@ -13,6 +13,7 @@ es:
         spending_proposal: "Propuesta de inversión creada correctamente. Puedes acceder a ella desde %{activity}"
         budget_investment: "Propuesta de inversión creada correctamente."
         signature_sheet: "Hoja de firmas creada correctamente"
+        topic: "Tema creado correctamente."
       save_changes:
         notice: Cambios guardados
       update:
@@ -23,6 +24,7 @@ es:
         poll_booth: "Urna actualizada correctamente."
         spending_proposal: "Propuesta de inversión actualizada correctamente."
         budget_investment: "Propuesta de inversión actualizada correctamente"
+        topic: "Tema actualizado correctamente."
       destroy:
         spending_proposal: "Propuesta de inversión eliminada."
         budget_investment: "Propuesta de inversión eliminada."

db/migrate/20170807082243_create_topics.rb

@@ -2,7 +2,7 @@ class CreateTopics < ActiveRecord::Migration
   def change
     create_table :topics do |t|
       t.string :title, null: false
-      t.text   :description_as_comment
+      t.text   :description
       t.integer :author_id
       t.integer  "comments_count", default: 0
       t.references :community, index: true

db/schema.rb

@@ -892,7 +892,7 @@ ActiveRecord::Schema.define(version: 20170807082243) do
 
   create_table "topics", force: :cascade do |t|
     t.string   "title",                      null: false
-    t.text     "description_as_comment"
+    t.text     "description"
     t.integer  "author_id"
     t.integer  "comments_count", default: 0
     t.integer  "community_id"

spec/factories.rb

@@ -784,4 +784,11 @@ LOREM_IPSUM
     locale "en"
     body "Some top links content"
   end
+
+  factory :topic do
+    sequence(:title) { |n| "Topic title #{n}" }
+    sequence(:description) { |n| "Description as comment #{n}" }
+    association :author, factory: :user
+  end
+
 end

spec/features/comments/proposals_spec.rb

@@ -31,7 +31,7 @@ feature 'Commenting proposals' do
     expect(page).to have_content parent_comment.body
     expect(page).to have_content first_child.body
     expect(page).to have_content second_child.body
-
+    debugger
     expect(page).to have_link "Go back to #{proposal.title}", href: proposal_path(proposal)
   end
 

spec/features/comments/topics_spec.rb

@@ -0,0 +1,548 @@
+require 'rails_helper'
+include ActionView::Helpers::DateHelper
+
+feature 'Commenting topics' do
+  let(:user) { create :user }
+  let(:proposal) { create :proposal }
+
+  scenario 'Index', :js do
+
+    community = proposal.community
+    topic = create(:topic, community: community)
+    3.times { create(:comment, commentable: topic) }
+
+    visit community_topic_path(community, topic)
+
+    expect(page).to have_css('.comment', count: 3)
+
+    comment = Comment.last
+    within first('.comment') do
+      expect(page).to have_content comment.user.name
+      expect(page).to have_content I18n.l(comment.created_at, format: :datetime)
+      expect(page).to have_content comment.body
+    end
+  end
+
+  scenario 'Show', :js do
+    community = proposal.community
+    topic = create(:topic, community: community)
+    parent_comment = create(:comment, commentable: topic)
+    first_child    = create(:comment, commentable: topic, parent: parent_comment)
+    second_child   = create(:comment, commentable: topic, parent: parent_comment)
+
+    visit comment_path(parent_comment)
+
+    expect(page).to have_css(".comment", count: 3)
+    expect(page).to have_content parent_comment.body
+    expect(page).to have_content first_child.body
+    expect(page).to have_content second_child.body
+
+    expect(page).to have_link "Go back to #{topic.title}", href: community_topic_path(community, topic)
+  end
+
+  scenario 'Collapsable comments', :js do
+    community = proposal.community
+    topic = create(:topic, community: community)
+    parent_comment = create(:comment, body: "Main comment", commentable: topic)
+    child_comment  = create(:comment, body: "First subcomment", commentable: topic, parent: parent_comment)
+    grandchild_comment = create(:comment, body: "Last subcomment", commentable: topic, parent: child_comment)
+
+    visit community_topic_path(community, topic)
+
+    expect(page).to have_css('.comment', count: 3)
+
+    find("#comment_#{child_comment.id}_children_arrow").trigger('click')
+
+    expect(page).to have_css('.comment', count: 2)
+    expect(page).to_not have_content grandchild_comment.body
+
+    find("#comment_#{child_comment.id}_children_arrow").trigger('click')
+
+    expect(page).to have_css('.comment', count: 3)
+    expect(page).to have_content grandchild_comment.body
+
+    find("#comment_#{parent_comment.id}_children_arrow").trigger('click')
+
+    expect(page).to have_css('.comment', count: 1)
+    expect(page).to_not have_content child_comment.body
+    expect(page).to_not have_content grandchild_comment.body
+  end
+
+  scenario 'Comment order' do
+    community = proposal.community
+    topic = create(:topic, community: community)
+    c1 = create(:comment, :with_confidence_score, commentable: topic, cached_votes_up: 100,
+                                                  cached_votes_total: 120, created_at: Time.current - 2)
+    c2 = create(:comment, :with_confidence_score, commentable: topic, cached_votes_up: 10,
+                                                  cached_votes_total: 12, created_at: Time.current - 1)
+    c3 = create(:comment, :with_confidence_score, commentable: topic, cached_votes_up: 1,
+                                                  cached_votes_total: 2, created_at: Time.current)
+
+    visit community_topic_path(community, topic, order: :most_voted)
+
+    expect(c1.body).to appear_before(c2.body)
+    expect(c2.body).to appear_before(c3.body)
+
+    visit community_topic_path(community, topic, order: :newest)
+
+    expect(c3.body).to appear_before(c2.body)
+    expect(c2.body).to appear_before(c1.body)
+
+    visit community_topic_path(community, topic, order: :oldest)
+
+    expect(c1.body).to appear_before(c2.body)
+    expect(c2.body).to appear_before(c3.body)
+  end
+
+  scenario 'Creation date works differently in roots and in child comments, when sorting by confidence_score' do
+    community = proposal.community
+    topic = create(:topic, community: community)
+    old_root = create(:comment, commentable: topic, created_at: Time.current - 10)
+    new_root = create(:comment, commentable: topic, created_at: Time.current)
+    old_child = create(:comment, commentable: topic, parent_id: new_root.id, created_at: Time.current - 10)
+    new_child = create(:comment, commentable: topic, parent_id: new_root.id, created_at: Time.current)
+
+    visit community_topic_path(community, topic, order: :most_voted)
+
+    expect(new_root.body).to appear_before(old_root.body)
+    expect(old_child.body).to appear_before(new_child.body)
+
+    visit community_topic_path(community, topic, order: :newest)
+
+    expect(new_root.body).to appear_before(old_root.body)
+    expect(new_child.body).to appear_before(old_child.body)
+
+    visit community_topic_path(community, topic, order: :oldest)
+
+    expect(old_root.body).to appear_before(new_root.body)
+    expect(old_child.body).to appear_before(new_child.body)
+  end
+
+  scenario 'Turns links into html links' do
+    community = proposal.community
+    topic = create(:topic, community: community)
+    create :comment, commentable: topic, body: 'Built with http://rubyonrails.org/'
+
+    visit community_topic_path(community, topic)
+
+    within first('.comment') do
+      expect(page).to have_content 'Built with http://rubyonrails.org/'
+      expect(page).to have_link('http://rubyonrails.org/', href: 'http://rubyonrails.org/')
+      expect(find_link('http://rubyonrails.org/')[:rel]).to eq('nofollow')
+      expect(find_link('http://rubyonrails.org/')[:target]).to eq('_blank')
+    end
+  end
+
+  scenario 'Sanitizes comment body for security' do
+    community = proposal.community
+    topic = create(:topic, community: community)
+    create :comment, commentable: topic,
+                     body: "<script>alert('hola')</script> <a href=\"javascript:alert('sorpresa!')\">click me<a/> http://www.url.com"
+
+    visit community_topic_path(community, topic)
+
+    within first('.comment') do
+      expect(page).to have_content "click me http://www.url.com"
+      expect(page).to have_link('http://www.url.com', href: 'http://www.url.com')
+      expect(page).not_to have_link('click me')
+    end
+  end
+
+  scenario 'Paginated comments' do
+    community = proposal.community
+    topic = create(:topic, community: community)
+    per_page = 10
+    (per_page + 2).times { create(:comment, commentable: topic)}
+
+    visit community_topic_path(community, topic)
+
+    expect(page).to have_css('.comment', count: per_page)
+    within("ul.pagination") do
+      expect(page).to have_content("1")
+      expect(page).to have_content("2")
+      expect(page).to_not have_content("3")
+      click_link "Next", exact: false
+    end
+
+    expect(page).to have_css('.comment', count: 2)
+  end
+
+  feature 'Not logged user' do
+    scenario 'can not see comments forms' do
+      community = proposal.community
+      topic = create(:topic, community: community)
+      create(:comment, commentable: topic)
+
+      visit community_topic_path(community, topic)
+
+      expect(page).to have_content 'You must Sign in or Sign up to leave a comment'
+      within('#comments') do
+        expect(page).to_not have_content 'Write a comment'
+        expect(page).to_not have_content 'Reply'
+      end
+    end
+  end
+
+  scenario 'Create', :js do
+    login_as(user)
+    community = proposal.community
+    topic = create(:topic, community: community)
+    visit community_topic_path(community, topic)
+
+    fill_in "comment-body-topic_#{topic.id}", with: 'Have you thought about...?'
+    click_button 'Publish comment'
+
+    within "#comments" do
+      expect(page).to have_content 'Have you thought about...?'
+    end
+
+    within "#tab-comments-label" do
+      expect(page).to have_content 'Comments (1)'
+    end
+  end
+
+  scenario 'Errors on create', :js do
+    login_as(user)
+    community = proposal.community
+    topic = create(:topic, community: community)
+    visit community_topic_path(community, topic)
+
+    click_button 'Publish comment'
+
+    expect(page).to have_content "Can't be blank"
+  end
+
+  scenario 'Reply', :js do
+    community = proposal.community
+    topic = create(:topic, community: community)
+    citizen = create(:user, username: 'Ana')
+    manuela = create(:user, username: 'Manuela')
+    comment = create(:comment, commentable: topic, user: citizen)
+
+    login_as(manuela)
+    visit community_topic_path(community, topic)
+
+    click_link "Reply"
+
+    within "#js-comment-form-comment_#{comment.id}" do
+      fill_in "comment-body-comment_#{comment.id}", with: 'It will be done next week.'
+      click_button 'Publish reply'
+    end
+
+    within "#comment_#{comment.id}" do
+      expect(page).to have_content 'It will be done next week.'
+    end
+
+    expect(page).to_not have_selector("#js-comment-form-comment_#{comment.id}", visible: true)
+  end
+
+  scenario 'Errors on reply', :js do
+    community = proposal.community
+    topic = create(:topic, community: community)
+    comment = create(:comment, commentable: topic, user: user)
+
+    login_as(user)
+    visit community_topic_path(community, topic)
+
+    click_link "Reply"
+
+    within "#js-comment-form-comment_#{comment.id}" do
+      click_button 'Publish reply'
+      expect(page).to have_content "Can't be blank"
+    end
+
+  end
+
+  scenario "N replies", :js do
+    community = proposal.community
+    topic = create(:topic, community: community)
+    parent = create(:comment, commentable: topic)
+
+    7.times do
+      create(:comment, commentable: topic, parent: parent)
+      parent = parent.children.first
+    end
+
+    visit community_topic_path(community, topic)
+    expect(page).to have_css(".comment.comment.comment.comment.comment.comment.comment.comment")
+  end
+
+  scenario "Flagging as inappropriate", :js do
+    community = proposal.community
+    topic = create(:topic, community: community)
+    comment = create(:comment, commentable: topic)
+
+    login_as(user)
+    visit community_topic_path(community, topic)
+
+    within "#comment_#{comment.id}" do
+      page.find("#flag-expand-comment-#{comment.id}").click
+      page.find("#flag-comment-#{comment.id}").click
+
+      expect(page).to have_css("#unflag-expand-comment-#{comment.id}")
+    end
+
+    expect(Flag.flagged?(user, comment)).to be
+  end
+
+  scenario "Undoing flagging as inappropriate", :js do
+    community = proposal.community
+    topic = create(:topic, community: community)
+    comment = create(:comment, commentable: topic)
+    Flag.flag(user, comment)
+
+    login_as(user)
+    visit community_topic_path(community, topic)
+
+    within "#comment_#{comment.id}" do
+      page.find("#unflag-expand-comment-#{comment.id}").click
+      page.find("#unflag-comment-#{comment.id}").click
+
+      expect(page).to have_css("#flag-expand-comment-#{comment.id}")
+    end
+
+    expect(Flag.flagged?(user, comment)).to_not be
+  end
+
+  scenario "Flagging turbolinks sanity check", :js do
+    community = proposal.community
+    topic = create(:topic, community: community, title: "Should we change the world?")
+    comment = create(:comment, commentable: topic)
+
+    login_as(user)
+    visit community_path(community)
+    click_link "Should we change the world?"
+
+    within "#comment_#{comment.id}" do
+      page.find("#flag-expand-comment-#{comment.id}").click
+      expect(page).to have_selector("#flag-comment-#{comment.id}")
+    end
+  end
+
+  scenario "Erasing a comment's author" do
+    community = proposal.community
+    topic = create(:topic, community: community)
+    comment = create(:comment, commentable: topic, body: "this should be visible")
+    comment.user.erase
+
+    visit community_topic_path(community, topic)
+
+    within "#comment_#{comment.id}" do
+      expect(page).to have_content('User deleted')
+      expect(page).to have_content('this should be visible')
+    end
+  end
+
+  feature "Moderators" do
+    scenario "can create comment as a moderator", :js do
+      community = proposal.community
+      topic = create(:topic, community: community)
+      moderator = create(:moderator)
+
+      login_as(moderator.user)
+      visit community_topic_path(community, topic)
+
+      fill_in "comment-body-topic_#{topic.id}", with: "I am moderating!"
+      check "comment-as-moderator-topic_#{topic.id}"
+      click_button "Publish comment"
+
+      within "#comments" do
+        expect(page).to have_content "I am moderating!"
+        expect(page).to have_content "Moderator ##{moderator.id}"
+        expect(page).to have_css "div.is-moderator"
+        expect(page).to have_css "img.moderator-avatar"
+      end
+    end
+
+    scenario "can create reply as a moderator", :js do
+      community = proposal.community
+      topic = create(:topic, community: community)
+      citizen = create(:user, username: "Ana")
+      manuela = create(:user, username: "Manuela")
+      moderator = create(:moderator, user: manuela)
+      comment = create(:comment, commentable: topic, user: citizen)
+
+      login_as(manuela)
+      visit community_topic_path(community, topic)
+
+      click_link "Reply"
+
+      within "#js-comment-form-comment_#{comment.id}" do
+        fill_in "comment-body-comment_#{comment.id}", with: "I am moderating!"
+        check "comment-as-moderator-comment_#{comment.id}"
+        click_button 'Publish reply'
+      end
+
+      within "#comment_#{comment.id}" do
+        expect(page).to have_content "I am moderating!"
+        expect(page).to have_content "Moderator ##{moderator.id}"
+        expect(page).to have_css "div.is-moderator"
+        expect(page).to have_css "img.moderator-avatar"
+      end
+
+      expect(page).to_not have_selector("#js-comment-form-comment_#{comment.id}", visible: true)
+    end
+
+    scenario "can not comment as an administrator" do
+      community = proposal.community
+      topic = create(:topic, community: community)
+      moderator = create(:moderator)
+
+      login_as(moderator.user)
+      visit community_topic_path(community, topic)
+
+      expect(page).to_not have_content "Comment as administrator"
+    end
+  end
+
+  feature "Administrators" do
+    scenario "can create comment as an administrator", :js do
+      community = proposal.community
+      topic = create(:topic, community: community)
+      admin = create(:administrator)
+
+      login_as(admin.user)
+      visit community_topic_path(community, topic)
+
+      fill_in "comment-body-topic_#{topic.id}", with: "I am your Admin!"
+      check "comment-as-administrator-topic_#{topic.id}"
+      click_button "Publish comment"
+
+      within "#comments" do
+        expect(page).to have_content "I am your Admin!"
+        expect(page).to have_content "Administrator ##{admin.id}"
+        expect(page).to have_css "div.is-admin"
+        expect(page).to have_css "img.admin-avatar"
+      end
+    end
+
+    scenario "can create reply as an administrator", :js do
+      community = proposal.community
+      topic = create(:topic, community: community)
+      citizen = create(:user, username: "Ana")
+      manuela = create(:user, username: "Manuela")
+      admin   = create(:administrator, user: manuela)
+      comment = create(:comment, commentable: topic, user: citizen)
+
+      login_as(manuela)
+      visit community_topic_path(community, topic)
+
+      click_link "Reply"
+
+      within "#js-comment-form-comment_#{comment.id}" do
+        fill_in "comment-body-comment_#{comment.id}", with: "Top of the world!"
+        check "comment-as-administrator-comment_#{comment.id}"
+        click_button 'Publish reply'
+      end
+
+      within "#comment_#{comment.id}" do
+        expect(page).to have_content "Top of the world!"
+        expect(page).to have_content "Administrator ##{admin.id}"
+        expect(page).to have_css "div.is-admin"
+        expect(page).to have_css "img.admin-avatar"
+      end
+
+      expect(page).to_not have_selector("#js-comment-form-comment_#{comment.id}", visible: true)
+    end
+
+    scenario "can not comment as a moderator" do
+      community = proposal.community
+      topic = create(:topic, community: community)
+      admin = create(:administrator)
+
+      login_as(admin.user)
+      visit community_topic_path(community, topic)
+
+      expect(page).to_not have_content "Comment as moderator"
+    end
+  end
+
+  feature 'Voting comments' do
+
+    background do
+      @manuela = create(:user, verified_at: Time.current)
+      @pablo = create(:user)
+      @proposal = create(:proposal)
+      @topic = create(:topic, community: @proposal.community)
+      @comment = create(:comment, commentable: @topic)
+
+      login_as(@manuela)
+    end
+
+    scenario 'Show' do
+      create(:vote, voter: @manuela, votable: @comment, vote_flag: true)
+      create(:vote, voter: @pablo, votable: @comment, vote_flag: false)
+
+      visit community_topic_path(@proposal.community, @topic)
+
+      within("#comment_#{@comment.id}_votes") do
+        within(".in_favor") do
+          expect(page).to have_content "1"
+        end
+
+        within(".against") do
+          expect(page).to have_content "1"
+        end
+
+        expect(page).to have_content "2 votes"
+      end
+    end
+
+    scenario 'Create', :js do
+      visit community_topic_path(@proposal.community, @topic)
+
+      within("#comment_#{@comment.id}_votes") do
+        find(".in_favor a").click
+
+        within(".in_favor") do
+          expect(page).to have_content "1"
+        end
+
+        within(".against") do
+          expect(page).to have_content "0"
+        end
+
+        expect(page).to have_content "1 vote"
+      end
+    end
+
+    scenario 'Update', :js do
+      visit community_topic_path(@proposal.community, @topic)
+
+      within("#comment_#{@comment.id}_votes") do
+        find('.in_favor a').click
+        find('.against a').click
+
+        within('.in_favor') do
+          expect(page).to have_content "0"
+        end
+
+        within('.against') do
+          expect(page).to have_content "1"
+        end
+
+        expect(page).to have_content "1 vote"
+      end
+    end
+
+    scenario 'Trying to vote multiple times', :js do
+      visit community_topic_path(@proposal.community, @topic)
+
+      within("#comment_#{@comment.id}_votes") do
+        find('.in_favor a').click
+        find('.in_favor a').click
+
+        within('.in_favor') do
+          expect(page).to have_content "1"
+        end
+
+        within('.against') do
+          expect(page).to have_content "0"
+        end
+
+        expect(page).to have_content "1 vote"
+      end
+    end
+  end
+
+end

spec/features/communities_spec.rb

@@ -0,0 +1,107 @@
+require 'rails_helper'
+
+feature 'Communities' do
+
+  context 'Show' do
+
+    scenario 'Should display default content' do
+      proposal = create(:proposal)
+      community = proposal.community
+      user =  create(:user)
+      login_as(user)
+
+      visit community_path(community)
+
+      expect(page).to have_content "Proposal community"
+      expect(page).to have_content proposal.title
+      expect(page).to have_content "Participate in the community of this proposal"
+      expect(page).to have_link("Create topic", href: new_community_topic_path(community))
+      expect(page).not_to have_selector(".button.disabled", text: "Create topic")
+    end
+
+    scenario 'Should display disabled create topic button when user is not logged' do
+      proposal = create(:proposal)
+      community = proposal.community
+
+      visit community_path(community)
+
+      expect(page).to have_selector(".button.disabled", text: "Create topic")
+    end
+
+    scenario 'Should display without_topics_text and empty participants when there are not topics' do
+      proposal = create(:proposal)
+      community = proposal.community
+
+      visit community_path(community)
+
+      expect(page).to have_content "Create the first community topic"
+      expect(page).to have_content "Participants (0)"
+    end
+
+    scenario 'Should display order selector and topic content when there are topics' do
+      proposal = create(:proposal)
+      community = proposal.community
+      topic = create(:topic, community: community)
+      create(:comment, commentable: topic)
+
+      visit community_path(community)
+
+      expect(page).to have_selector ".wide-order-selector"
+      within "#topic_#{topic.id}" do
+        expect(page).to have_content topic.title
+        expect(page).to have_content "#{topic.comments_count} comment"
+        expect(page).to have_content I18n.l(topic.created_at.to_date)
+        expect(page).to have_content topic.author.name
+      end
+    end
+
+    scenario 'Should display topic edit button when author is logged' do
+      proposal = create(:proposal)
+      community = proposal.community
+      user =  create(:user)
+      topic1 = create(:topic, community: community, author: user)
+      topic2 = create(:topic, community: community)
+      login_as(user)
+
+      visit community_path(community)
+
+      within "#topic_#{topic1.id}" do
+        expect(page).to have_link("Edit", href: edit_community_topic_path(community, topic1))
+      end
+
+      within "#topic_#{topic2.id}" do
+        expect(page).not_to have_link("Edit", href: edit_community_topic_path(community, topic2))
+      end
+    end
+
+    scenario 'Should display participant when there is topics' do
+      proposal = create(:proposal)
+      community = proposal.community
+      topic = create(:topic, community: community)
+
+      visit community_path(community)
+
+      within ".communities-participant" do
+        expect(page).to have_content "Participants (1)"
+        expect(page).to have_content topic.author.name
+      end
+    end
+
+    scenario 'Should display participants when there are topics and comments' do
+      proposal = create(:proposal)
+      community = proposal.community
+      topic = create(:topic, community: community)
+      comment = create(:comment, commentable: topic)
+
+      visit community_path(community)
+
+      within ".communities-participant" do
+        expect(page).to have_content "Participants (2)"
+        expect(page).to have_content topic.author.name
+        expect(page).to have_content comment.author.name
+      end
+    end
+
+  end
+
+end

spec/features/proposals_spec.rb

@@ -63,6 +63,7 @@ feature 'Proposals' do
     expect(page.html).to include "<title>#{proposal.title}</title>"
     expect(page).not_to have_selector ".js-flag-actions"
     expect(page).not_to have_selector ".js-follow"
+    expect(page).to have_content "Access the community"
 
     within('.social-share-button') do
       expect(page.all('a').count).to be(4) # Twitter, Facebook, Google+, Telegram

spec/features/topics_specs.rb

@@ -0,0 +1,102 @@
+require 'rails_helper'
+
+feature 'Topics' do
+
+  context 'New' do
+
+    scenario 'Should display disabled button to new topic page without user logged', :js do
+      proposal = create(:proposal)
+      community = proposal.community
+
+      visit community_path(community)
+
+      expect(page).to have_selector(".button.expanded.disabled")
+    end
+
+    scenario 'Should can access to new topic page with user logged', :js do
+      proposal = create(:proposal)
+      community = proposal.community
+      user =  create(:user)
+      login_as(user)
+      visit community_path(community)
+
+      click_link "Create topic"
+
+      expect(page).to have_content "Create a topic"
+    end
+
+    scenario 'Should have content on new topic page', :js do
+      proposal = create(:proposal)
+      community = proposal.community
+      user =  create(:user)
+      login_as(user)
+      visit community_path(community)
+
+      click_link "Create topic"
+
+      expect(page).to have_content "Topic Title"
+      expect(page).to have_content "Description"
+      expect(page).to have_content "Recommendations to create a topic"
+      expect(page).to have_content "Do not write the topic title or whole sentences in capital letters. On the internet that is considered shouting. And no one likes to be yelled at."
+      expect(page).to have_content "Any topic or comment that implies an illegal action will be eliminated, also those that intend to sabotage the spaces of the subject, everything else is allowed."
+      expect(page).to have_content "Enjoy this space, the voices that fill it, it's yours too."
+      expect(page).to have_button("Create topic")
+    end
+
+  end
+
+  context 'Create' do
+
+    scenario 'Should can create a new topic', :js do
+      proposal = create(:proposal)
+      community = proposal.community
+      user =  create(:user)
+      login_as(user)
+
+      visit new_community_topic_path(community)
+      fill_in "topic_title", with: "New topic title"
+      fill_in "topic_description", with: "Topic description"
+      click_button "Create topic"
+
+      expect(page).to have_content "New topic title"
+      expect(current_path).to eq(community_path(community))
+    end
+
+  end
+
+  context 'Edit' do
+
+    scenario 'Should can edit a topic' do
+      proposal = create(:proposal)
+      community = proposal.community
+      user =  create(:user)
+      topic = create(:topic, community: community, author: user)
+      login_as(user)
+      visit edit_community_topic_path(community, topic)
+
+      fill_in "topic_title", with: "Edit topic title"
+      fill_in "topic_description", with: "Edit topic description"
+      click_button "Edit topic"
+
+      expect(page).to have_content "Edit topic title"
+      expect(current_path).to eq(community_path(community))
+    end
+
+  end
+
+  context 'Show' do
+
+    scenario 'Should can show topic' do
+      proposal = create(:proposal)
+      community = proposal.community
+      topic = create(:topic, community: community)
+
+      visit community_topic_path(community, topic)
+
+      expect(page).to have_content community.proposal.title
+      expect(page).to have_content topic.title
+    end
+
+  end
+
+end

spec/models/community_spec.rb

@@ -0,0 +1,10 @@
+require 'rails_helper'
+
+RSpec.describe Community, type: :model do
+
+  it "should be valid when create proposal" do
+    proposal = create(:proposal)
+
+    expect(proposal.community).to be_valid
+  end
+end

spec/models/topic_spec.rb

@@ -0,0 +1,75 @@
+require 'rails_helper'
+
+describe Topic do
+  let(:topic) { build(:topic) }
+
+  it "should be valid" do
+    expect(topic).to be_valid
+  end
+
+  it "should not be valid without an author" do
+    topic.author = nil
+    expect(topic).to_not be_valid
+  end
+
+  it "should not be valid without a title" do
+    topic.title = nil
+    expect(topic).to_not be_valid
+  end
+
+  it "should not be valid without a description" do
+    topic.description = nil
+    expect(topic).to_not be_valid
+  end
+
+  context "order" do
+
+    it "orders by newest" do
+      proposal = create(:proposal)
+      community = proposal.community
+      topic1 = create(:topic, community: community)
+      topic2 = create(:topic, community: community)
+      topic3 = create(:topic, community: community)
+
+      results = community.topics.sort_by_newest
+
+      expect(results.first).to eq(topic3)
+      expect(results.second).to eq(topic2)
+      expect(results.third).to eq(topic1)
+    end
+
+    it "orders by oldest" do
+      proposal = create(:proposal)
+      community = proposal.community
+      topic1 = create(:topic, community: community)
+      topic2 = create(:topic, community: community)
+      topic3 = create(:topic, community: community)
+
+      results = community.topics.sort_by_oldest
+
+      expect(results.first).to eq(topic1)
+      expect(results.second).to eq(topic2)
+      expect(results.third).to eq(topic3)
+    end
+
+    it "orders by most_commented" do
+      proposal = create(:proposal)
+      community = proposal.community
+      topic1 = create(:topic, community: community)
+      create(:comment, commentable: topic1)
+      create(:comment, commentable: topic1)
+      topic2 = create(:topic, community: community)
+      create(:comment, commentable: topic2)
+      topic3 = create(:topic, community: community)
+
+      results = community.topics.sort_by_most_commented
+
+      expect(results.first).to eq(topic1)
+      expect(results.second).to eq(topic2)
+      expect(results.third).to eq(topic3)
+    end
+
+  end
+
+
+end

spec/models/user_spec.rb

@@ -680,4 +680,22 @@ describe User do
     end
 
   end
+
+  describe "#community_participants" do
+
+    it "should return participants without duplicates" do
+      proposal = create(:proposal)
+      community = proposal.community
+      user1 = create(:user)
+      user2 = create(:user)
+
+      topic1 = create(:topic, community: community, author: user1)
+      create(:comment, commentable: topic1, author: user1)
+      create(:comment, commentable: topic1, author: user2)
+      topic2 = create(:topic, community: community, author: user2)
+
+      expect(User.community_participants(community)).to eq [user1, user2]
+    end
+  end
+
 end