adds comment show view

app/controllers/comments_controller.rb

@@ -1,5 +1,5 @@
 class CommentsController < ApplicationController
-  before_action :authenticate_user!
+  before_action :authenticate_user!, only: :create
   before_action :load_commentable, only: :create
   before_action :build_comment, only: :create
 
@@ -14,6 +14,11 @@ class CommentsController < ApplicationController
     end
   end
 
+  def show
+    @comment = Comment.find(params[:id])
+    set_comment_flags(@comment.subtree)
+  end
+
   def vote
     @comment.vote_by(voter: current_user, vote: params[:value])
     respond_with @comment

app/helpers/comments_helper.rb

@@ -13,8 +13,11 @@ module CommentsHelper
   end
 
   def child_comments_of(parent)
-    return [] unless @comment_tree
+    if @comment_tree.present?
-    @comment_tree.children_of(parent)
+      @comment_tree.ordered_children_of(parent)
+    else
+      parent.children
+    end
   end
 
   def user_level_class(comment)

app/models/abilities/everyone.rb

@@ -5,6 +5,7 @@ module Abilities
     def initialize(user)
       can :read, Debate
       can :read, Proposal
+      can :read, Comment
       can :read, Legislation
       can :read, User
       can [:search, :read], Annotation

app/views/comments/_comment.html.erb

@@ -1,9 +1,9 @@
-<% cache [locale_and_user_status(comment), comment, commentable_cache_key(@commentable), comment.author, (@comment_flags[comment.id] if @comment_flags)] do %>
+<% cache [locale_and_user_status(comment), comment, commentable_cache_key(comment.commentable), comment.author, (@comment_flags[comment.id] if @comment_flags)] do %>
   <div class="row">
   	<div id="<%= dom_id(comment) %>" class="comment small-12 column">
 
       <% if comment.hidden? || comment.user.hidden? %>
-        <% if child_comments_of(comment).size > 0 %>
+        <% if comment.children.size > 0 %>
           <div class="is-deleted">
             <p><%= t("comments.comment.deleted") %></p>
           </div>
@@ -49,7 +49,7 @@
                   <%= t("shared.collective") %>
                 </span>
               <% end %>
-              <% if comment.user_id == @commentable.author_id %>
+              <% if comment.user_id == comment.commentable.author_id %>
                 &nbsp;&bull;&nbsp;
                 <span class="label round is-author">
                   <%= t("comments.comment.author") %>
@@ -63,7 +63,7 @@
 
           <div class="comment-user
                     <%= user_level_class comment %>
-                    <%= comment_author_class comment, @commentable.author_id %>">
+                    <%= comment_author_class comment, comment.commentable.author_id %>">
             <%= simple_format text_with_links comment.body %>
           </div>
 
@@ -72,7 +72,7 @@
           </span>
 
           <div class="reply">
-            <%= t("comments.comment.responses", count: child_comments_of(comment).size) %>
+            <%= t("comments.comment.responses", count: comment.children.size) %>
 
             <% if user_signed_in? %>
               <span class="divider">&nbsp;|&nbsp;</span>
@@ -81,11 +81,12 @@
 
               <%= render 'comments/actions', comment: comment %>
 
-              <%= render 'comments/form', {commentable: @commentable, parent_id: comment.id, toggeable: true} %>
+              <%= render 'comments/form', {commentable: comment.commentable, parent_id: comment.id, toggeable: true} %>
             <% end %>
           </div>
         </div>
       <% end %>
+
       <div class="comment-children">
         <% child_comments_of(comment).each do |child| %>
           <%= render 'comments/comment', comment: child %>

app/views/comments/show.html.erb

@@ -0,0 +1,12 @@
+<div>
+  <%= link_to t("comments.show.return_to_commentable") + @comment.commentable.title,
+              @comment.commentable %>
+</div>
+
+<section class="row-full comments">
+  <div class="row">
+    <div id="comments" class="small-12 column">
+      <%= render @comment %>
+    </div>
+  </div>
+</section>

config/locales/en.yml

@@ -244,6 +244,8 @@ en:
       form:
         submit_button: "Save changes"
   comments:
+    show:
+      return_to_commentable: "Go back to "
     select_order: "Sort by"
     orders:
       most_voted: "Most voted"

config/locales/es.yml

@@ -244,6 +244,8 @@ es:
       form:
         submit_button: "Guardar cambios"
   comments:
+    show:
+      return_to_commentable: "Volver a "
     select_order: "Ordenar por"
     orders:
       most_voted: "Más votados"

config/routes.rb

@@ -53,7 +53,7 @@ Rails.application.routes.draw do
     end
   end
 
-  resources :comments, only: :create, shallow: true do
+  resources :comments, only: [:create, :show], shallow: true do
     member do
       post :vote
       put :flag

spec/features/comments/debates_spec.rb

@@ -20,6 +20,21 @@ feature 'Commenting debates' do
     end
   end
 
+  scenario 'Show' do
+    parent_comment = create(:comment, commentable: debate)
+    first_child    = create(:comment, commentable: debate, parent: parent_comment)
+    second_child   = create(:comment, commentable: debate, 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 #{debate.title}", debate_path(debate)
+  end
+
   scenario 'Comment order' do
     c1 = create(:comment, :with_confidence_score, commentable: debate, cached_votes_up: 100, cached_votes_total: 120, created_at: Time.now - 2)
     c2 = create(:comment, :with_confidence_score, commentable: debate, cached_votes_up: 10, cached_votes_total: 12, created_at: Time.now - 1)

spec/features/comments/proposals_spec.rb

@@ -20,6 +20,21 @@ feature 'Commenting proposals' do
     end
   end
 
+  scenario 'Show' do
+    parent_comment = create(:comment, commentable: proposal)
+    first_child    = create(:comment, commentable: proposal, parent: parent_comment)
+    second_child   = create(:comment, commentable: proposal, 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 #{proposal.title}", proposal_path(proposal)
+  end
+
   scenario 'Comment order' do
     c1 = create(:comment, :with_confidence_score, commentable: proposal, cached_votes_up: 100, cached_votes_total: 120, created_at: Time.now - 2)
     c2 = create(:comment, :with_confidence_score, commentable: proposal, cached_votes_up: 10, cached_votes_total: 12, created_at: Time.now - 1)

spec/models/abilities/everyone_spec.rb

@@ -21,4 +21,6 @@ describe "Abilities::Everyone" do
   it { should_not be_able_to(:vote, Proposal) }
   it { should_not be_able_to(:flag, Proposal) }
   it { should_not be_able_to(:unflag, Proposal) }
+
+  it { should be_able_to(:show, Comment) }
 end