Add 'post as moderator' option for comments.

* Add 'post as moderator' option to comment form. This creates a so-called sticky comment.
* Downvotes have no effect on stickied comments; they're always visible, regardless of comment thresholds.
* Only mods may sticky comments.
* Mods may sticky comments by other users.

app/assets/stylesheets/specific/comments.css.scss

@@ -48,10 +48,6 @@ div.comments-for-post {
       opacity: 1.0;
     }
   }
-
-  div.comment-preview {
-    margin-bottom: 2em;
-  }
 }
 
 div#c-posts {
@@ -146,3 +142,12 @@ div#c-comments {
     }
   }
 }
+
+form.edit_comment div.input.boolean {
+  display: inline-block;
+
+  label {
+    font-weight: normal;
+    vertical-align: initial;
+  }
+}

app/controllers/comments_controller.rb

@@ -23,12 +23,12 @@ class CommentsController < ApplicationController
   def update
     @comment = Comment.find(params[:id])
     check_privilege(@comment)
-    @comment.update_attributes(params[:comment].permit(:body))
+    @comment.update(update_params, :as => CurrentUser.role)
     respond_with(@comment, :location => post_path(@comment.post_id))
   end
 
   def create
-    @comment = Comment.create(params[:comment])
+    @comment = Comment.create(create_params, :as => CurrentUser.role)
     respond_with(@comment) do |format|
       format.html do
         if @comment.errors.any?
@@ -110,4 +110,12 @@ private
       raise User::PrivilegeError
     end
   end
+
+  def create_params
+    params.require(:comment).permit(:post_id, :body, :do_not_bump_post, :is_sticky)
+  end
+
+  def update_params
+    params.require(:comment).permit(:body, :is_deleted, :is_sticky)
+  end
 end

app/models/comment.rb

@@ -12,7 +12,8 @@ class Comment < ActiveRecord::Base
   before_validation :initialize_updater
   after_create :update_last_commented_at_on_create
   after_destroy :update_last_commented_at_on_destroy
-  attr_accessible :body, :post_id, :do_not_bump_post, :is_deleted
+  attr_accessible :body, :post_id, :do_not_bump_post, :is_deleted, :as => [:member, :gold, :platinum, :builder, :janitor, :moderator, :admin]
+  attr_accessible :is_sticky, :as => [:moderator, :admin]
   mentionable(
     :message_field => :body, 
     :user_field => :creator_id, 
@@ -34,11 +35,11 @@ class Comment < ActiveRecord::Base
     end
 
     def hidden(user)
-      where("score < ?", user.comment_threshold)
+      where("score < ? and is_sticky = false", user.comment_threshold)
     end
 
     def visible(user)
-      where("score >= ?", user.comment_threshold)
+      where("score >= ? or is_sticky = true", user.comment_threshold)
     end
 
     def deleted
@@ -208,11 +209,11 @@ class Comment < ActiveRecord::Base
   end
 
   def delete!
-    update_attributes(:is_deleted => true)
+    update({ :is_deleted => true }, :as => CurrentUser.role)
   end
 
   def undelete!
-    update_attributes(:is_deleted => false)
+    update({ :is_deleted => false }, :as => CurrentUser.role)
   end
 end
 

app/views/comments/_form.html.erb

@@ -1,5 +1,14 @@
+<%= error_messages_for :comment %>
+
 <%= simple_form_for(comment, :html => {:class => "edit_comment"}) do |f| %>
+  <%= f.hidden_field :post_id %>
   <%= dtext_field "comment", "body", :value => comment.body, :input_id => "comment_body_for_#{comment.id}", :preview_id => "dtext-preview-for-#{comment.id}" %>
-  <%= f.button :submit, "Submit" %>
+  <%= f.button :submit, "Submit", :data => { :disable_with => "Submitting..." } %>
   <%= dtext_preview_button "comment", "body", :input_id => "comment_body_for_#{comment.id}", :preview_id => "dtext-preview-for-#{comment.id}" %>
+  <% if comment.new_record? %>
+    <%= f.input :do_not_bump_post, :label => "No bump" %>
+  <% end %>
+  <% if CurrentUser.is_moderator? %>
+    <%= f.input :is_sticky, :label => "Post as moderator" %>
+  <% end %>
 <% end %>

app/views/comments/edit.html.erb

@@ -2,13 +2,7 @@
   <div id="a-edit">
     <h1>Edit Comment</h1>
 
-    <%= error_messages_for "comment" %>
-
-    <%= simple_form_for(@comment) do |f| %>
-      <%= dtext_field "comment", "body" %>
-      <%= f.button :submit, "Submit" %>
-      <%= dtext_preview_button "comment", "body" %>
-    <% end %>
+    <%= render "comments/form", :post => @comment.post, :comment => @comment %>
   </div>
 </div>
 

app/views/comments/partials/index/_list.html.erb

@@ -28,7 +28,7 @@
   <% if CurrentUser.is_member? %>
     <div class="new-comment">
       <p><%= link_to "Post comment", new_comment_path, :class => "expand-comment-response" %></p>
-      <%= render "comments/partials/new/form", :post => post %>
+      <%= render "comments/form", :post => post, :comment => post.comments.new %>
     </div>
   <% end %>
 </div>

app/views/comments/partials/new/_form.html.erb

@@ -1,10 +0,0 @@
-<div class="comment-preview dtext dtext-preview">
-</div>
-
-<%= form_tag(comments_path, :class => "simple_form comment-form") do %>
-  <%= hidden_field "comment", "post_id", :value => post.id %>
-  <%= dtext_field "comment", "body", :input_id => "comment_response_for_#{post.id}", :preview_id => "dtext-preview-for-#{post.id}" %>
-  <%= submit_tag "Post", :data => { :disable_with => "Submitting..." } %>
-  <%= dtext_preview_button "comment", "body", :input_id => "comment_response_for_#{post.id}", :preview_id => "dtext-preview-for-#{post.id}" %>
-  <%= check_box "comment", "do_not_bump_post", :id => "comment_do_not_bump_post_#{post.id}" %> <label for="comment_do_not_bump_post_<%= post.id %>">No bump</label>
-<% end %>

app/views/comments/partials/show/_comment.html.erb

@@ -1,6 +1,6 @@
 <% if CurrentUser.is_moderator? || !comment.is_deleted? %>
   <a name="comment-<%= comment.id %>"></a>
-  <article class="comment" data-post-id="<%= comment.post_id %>" data-comment-id="<%= comment.id %>" data-score="<%= comment.score %>" data-creator="<%= comment.creator.name %>">
+  <article class="comment" data-post-id="<%= comment.post_id %>" data-comment-id="<%= comment.id %>" data-score="<%= comment.score %>" data-creator="<%= comment.creator.name %>" data-is-sticky="<%= comment.is_sticky %>">
     <div class="author">
       <h1>
         <%= link_to_user comment.creator %>
@@ -39,7 +39,7 @@
           <% end %>
         </menu>
         <% if comment.editable_by?(CurrentUser.user) %>
-          <%= render "comments/form", :comment => comment %>
+          <%= render "comments/form", :post => comment.post, :comment => comment %>
         <% end %>
       <% end %>
     </div>

db/migrate/20161227003428_add_sticky_to_comments.rb

@@ -0,0 +1,5 @@
+class AddStickyToComments < ActiveRecord::Migration
+  def change
+    add_column :comments, :is_sticky, :boolean, null: false, default: false
+  end
+end