Adds first version of comment moderation

Missing:
* Ensure removing a flag updates the flagged_at attribute correctly
* Showing the debate when the comment is not a “root”
* Filter (pending / reviewed / all)
* Order
* Same for debates

app/controllers/moderation/comments_controller.rb

@@ -1,8 +1,31 @@
 class Moderation::CommentsController < Moderation::BaseController
 
+  before_filter :load_comments, only: :index
+
+  load_and_authorize_resource
+
+  def index
+    @comments = @comments.page(params[:page])
+  end
+
   def hide
-    @comment = Comment.find(params[:id])
     @comment.hide
   end
 
-end
+  def hide_in_moderation_screen
+    @comment.hide
+    redirect_to action: :index
+  end
+
+  def mark_as_reviewed
+    @comment.mark_as_reviewed
+    redirect_to action: :index
+  end
+
+  private
+
+  def load_comments
+    @comments = Comment.accessible_by(current_ability, :hide).where('inappropiate_flags_count > 0').includes(:commentable)
+  end
+
+end

app/views/moderation/comments/index.html.erb

@@ -0,0 +1,36 @@
+<h2><%= t('moderation.comments.index.title') %></h2>
+
+<h3><%= page_entries_info @comments %></h3>
+
+<table>
+  <tr>
+    <th><%= t('moderation.comments.index.flags') %></th>
+    <th><%= t('moderation.comments.index.debate') %></th>
+    <th><%= t('moderation.comments.index.comment') %></th>
+    <th><%= t('moderation.comments.index.updated_at') %></th>
+  </tr>
+  <% @comments.each do |comment| %>
+    <tr id="comment_<%= comment.id %>">
+      <td><%= comment.inappropiate_flags_count %></td>
+      <td><%= link_to(comment.debate.title, comment.debate) %></td>
+      <td><%= comment.body %></td>
+      <td><%= l comment.updated_at.to_date %></td>
+      <td>
+        <%= link_to t('moderation.comments.index.hide'), hide_in_moderation_screen_moderation_comment_path(comment), method: :put %>
+      </td>
+      <% if can? :mark_as_reviewed, comment %>
+        <td>
+          <%= link_to t('moderation.comments.index.mark_as_reviewed'), mark_as_reviewed_moderation_comment_path(comment), method: :put %>
+        </td>
+      <% end %>
+      <% if comment.reviewed? %>
+        <td>
+          <%= t('moderation.comments.index.reviewed') %>
+        </td>
+      <% end %>
+    </tr>
+  <% end %>
+</table>
+
+<%= paginate @comments %>
+