From 1257639109e322a18f2b96143ca7c03993e82475 Mon Sep 17 00:00:00 2001
From: evazion <noizave@gmail.com>
Date: Mon, 26 Dec 2016 22:24:01 -0600
Subject: [PATCH 1/4] 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   | 13 +++++++++----
 app/controllers/comments_controller.rb              | 12 ++++++++++--
 app/models/comment.rb                               | 11 ++++++-----
 app/views/comments/_form.html.erb                   | 11 ++++++++++-
 app/views/comments/edit.html.erb                    |  8 +-------
 app/views/comments/partials/index/_list.html.erb    |  2 +-
 app/views/comments/partials/new/_form.html.erb      | 10 ----------
 app/views/comments/partials/show/_comment.html.erb  |  4 ++--
 db/migrate/20161227003428_add_sticky_to_comments.rb |  5 +++++
 9 files changed, 44 insertions(+), 32 deletions(-)
 delete mode 100644 app/views/comments/partials/new/_form.html.erb
 create mode 100644 db/migrate/20161227003428_add_sticky_to_comments.rb

diff --git a/app/assets/stylesheets/specific/comments.css.scss b/app/assets/stylesheets/specific/comments.css.scss
index 36a7360a6..6fe78eb3a 100644
--- a/app/assets/stylesheets/specific/comments.css.scss
+++ b/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;
+  }
+}
diff --git a/app/controllers/comments_controller.rb b/app/controllers/comments_controller.rb
index ff38ab0f6..75a33ec0c 100644
--- a/app/controllers/comments_controller.rb
+++ b/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
diff --git a/app/models/comment.rb b/app/models/comment.rb
index aa1a24f54..ad1d2606d 100644
--- a/app/models/comment.rb
+++ b/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
 
diff --git a/app/views/comments/_form.html.erb b/app/views/comments/_form.html.erb
index 0c5b47949..6117a6051 100644
--- a/app/views/comments/_form.html.erb
+++ b/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 %>
diff --git a/app/views/comments/edit.html.erb b/app/views/comments/edit.html.erb
index e68f0087c..26e62c7c5 100644
--- a/app/views/comments/edit.html.erb
+++ b/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>
 
diff --git a/app/views/comments/partials/index/_list.html.erb b/app/views/comments/partials/index/_list.html.erb
index dbe729038..6cf957800 100644
--- a/app/views/comments/partials/index/_list.html.erb
+++ b/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>
diff --git a/app/views/comments/partials/new/_form.html.erb b/app/views/comments/partials/new/_form.html.erb
deleted file mode 100644
index 59978a6cd..000000000
--- a/app/views/comments/partials/new/_form.html.erb
+++ /dev/null
@@ -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 %>
diff --git a/app/views/comments/partials/show/_comment.html.erb b/app/views/comments/partials/show/_comment.html.erb
index 395804bdd..cbfe8323a 100644
--- a/app/views/comments/partials/show/_comment.html.erb
+++ b/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>
diff --git a/db/migrate/20161227003428_add_sticky_to_comments.rb b/db/migrate/20161227003428_add_sticky_to_comments.rb
new file mode 100644
index 000000000..124da10af
--- /dev/null
+++ b/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

From 91e368f08ae33fb977bcff59942d84e648884d4e Mon Sep 17 00:00:00 2001
From: evazion <noizave@gmail.com>
Date: Mon, 26 Dec 2016 22:31:08 -0600
Subject: [PATCH 2/4] Highlight stickied comments; don't dim downvoted
 stickies.

The highlight color uses the same color as the subnav bar background
color. Make it a tad brighter so it's more visible.
---
 app/assets/stylesheets/common/000_vars.css.scss   | 2 +-
 app/assets/stylesheets/specific/comments.css.scss | 7 ++++++-
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/app/assets/stylesheets/common/000_vars.css.scss b/app/assets/stylesheets/common/000_vars.css.scss
index fb8bcf1ed..6279c968f 100644
--- a/app/assets/stylesheets/common/000_vars.css.scss
+++ b/app/assets/stylesheets/common/000_vars.css.scss
@@ -1,4 +1,4 @@
-$menu_color: #F7F7FF;
+$menu_color: #F5F5FF;
 $link_color: hsl(213, 100%, 50%);
 $link_hover_color: lighten($link_color, 25%);
 $link_dark_color: darken($link_color, 25%);
diff --git a/app/assets/stylesheets/specific/comments.css.scss b/app/assets/stylesheets/specific/comments.css.scss
index 6fe78eb3a..7eaa842bb 100644
--- a/app/assets/stylesheets/specific/comments.css.scss
+++ b/app/assets/stylesheets/specific/comments.css.scss
@@ -15,6 +15,11 @@ div.comments-for-post {
     article.comment {
       margin-bottom: 2em;
       word-wrap: break-word;
+      padding: 5px;
+
+      &[data-is-sticky="true"] {
+        background: $menu_color;
+      }
 
       div.author {
         width: 12em;
@@ -40,7 +45,7 @@ div.comments-for-post {
       }
     }
 
-    article.comment.below-threshold {
+    article.comment.below-threshold:not([data-is-sticky="true"]) {
       opacity: 0.3;
     }
 

From 82e93b3c1235a8e6f132b1c98d10d552c8c08788 Mon Sep 17 00:00:00 2001
From: evazion <noizave@gmail.com>
Date: Mon, 26 Dec 2016 22:48:13 -0600
Subject: [PATCH 3/4] Allow downvoting admin comments.

---
 app/models/comment_vote.rb | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/app/models/comment_vote.rb b/app/models/comment_vote.rb
index 88ec2d084..accf9bc92 100644
--- a/app/models/comment_vote.rb
+++ b/app/models/comment_vote.rb
@@ -39,9 +39,6 @@ class CommentVote < ActiveRecord::Base
     if is_positive? && comment.creator == CurrentUser.user
       errors.add :base, "You cannot upvote your own comments"
       false
-    elsif is_negative? && comment.creator.is_admin?
-      errors.add :base, "You cannot downvote an admin comment"
-      false
     else
       true
     end

From 0e73f3c8a9e01a1f9009ed44186ef28bb3230776 Mon Sep 17 00:00:00 2001
From: evazion <noizave@gmail.com>
Date: Mon, 26 Dec 2016 23:37:16 -0600
Subject: [PATCH 4/4] Add tests for stickying comments.

---
 test/functional/comments_controller_test.rb | 81 +++++++++++++++++++--
 test/unit/comment_test.rb                   | 20 +++++
 2 files changed, 96 insertions(+), 5 deletions(-)

diff --git a/test/functional/comments_controller_test.rb b/test/functional/comments_controller_test.rb
index a98ef8d85..eb54597a6 100644
--- a/test/functional/comments_controller_test.rb
+++ b/test/functional/comments_controller_test.rb
@@ -3,12 +3,17 @@ require 'test_helper'
 class CommentsControllerTest < ActionController::TestCase
   context "A comments controller" do
     setup do
-      CurrentUser.user = FactoryGirl.create(:user)
+      @mod = FactoryGirl.create(:moderator_user)
+      @user = FactoryGirl.create(:member_user)
+      CurrentUser.user = @user
       CurrentUser.ip_addr = "127.0.0.1"
       Danbooru.config.stubs(:member_comment_time_threshold).returns(1.week.from_now)
+
       @post = FactoryGirl.create(:post)
       @comment = FactoryGirl.create(:comment, :post => @post)
-      @user = FactoryGirl.create(:moderator_user)
+      CurrentUser.scoped(@mod) do
+        @mod_comment = FactoryGirl.create(:comment, :post => @post)
+      end
     end
 
     teardown do
@@ -28,13 +33,64 @@ class CommentsControllerTest < ActionController::TestCase
       end
     end
 
+    context "search action" do
+      should "render" do
+        get :search
+        assert_response :success
+      end
+    end
+
+    context "show action" do
+      should "render" do
+        get :show, {:id => @comment.id}
+        assert_response :success
+      end
+    end
+
+    context "edit action" do
+      should "render" do
+        get :edit, {:id => @comment.id}, {:user_id => @user.id}
+        assert_response :success
+      end
+    end
+
     context "update action" do
-      should "update the comment" do
+      context "when updating another user's comment" do
+        should "succeed if updater is a moderator" do
+          post :update, {:id => @comment.id, :comment => {:body => "abc"}}, {:user_id => @mod.id}
+          assert_equal("abc", @comment.reload.body)
+          assert_redirected_to post_path(@comment.post)
+        end
+
+        should "fail if updater is not a moderator" do
+          post :update, {:id => @mod_comment.id, :comment => {:body => "abc"}}, {:user_id => @user.id}
+          assert_not_equal("abc", @mod_comment.reload.body)
+          assert_response 403
+        end
+      end
+
+      context "when stickying a comment" do
+        should "succeed if updater is a moderator" do
+          CurrentUser.user = @mod
+          post :update, {:id => @comment.id, :comment => {:is_sticky => true}}, {:user_id => @mod.id}
+          assert_equal(true, @comment.reload.is_sticky)
+          assert_redirected_to @comment.post
+        end
+
+        should "fail if updater is not a moderator" do
+          post :update, {:id => @comment.id, :comment => {:is_sticky => true}}, {:user_id => @user.id}
+          assert_equal(false, @comment.reload.is_sticky)
+          assert_redirected_to @comment.post
+        end
+      end
+
+      should "update the body" do
         post :update, {:id => @comment.id, :comment => {:body => "abc"}}, {:user_id => @comment.creator_id}
+        assert_equal("abc", @comment.reload.body)
         assert_redirected_to post_path(@comment.post)
       end
 
-      should "only allow changing the body" do
+      should "allow changing the body and is_deleted" do
         params = {
           id: @comment.id,
           comment: {
@@ -50,13 +106,20 @@ class CommentsControllerTest < ActionController::TestCase
 
         assert_equal("herp derp", @comment.body)
         assert_equal(false, @comment.do_not_bump_post)
-        assert_equal(false, @comment.is_deleted)
+        assert_equal(true, @comment.is_deleted)
         assert_equal(@post.id, @comment.post_id)
 
         assert_redirected_to post_path(@post)
       end
     end
 
+    context "new action" do
+      should "redirect" do
+        get :new, {}, {:user_id => @user.id}
+        assert_redirected_to comments_path
+      end
+    end
+
     context "create action"do
       should "create a comment" do
         assert_difference("Comment.count", 1) do
@@ -71,5 +134,13 @@ class CommentsControllerTest < ActionController::TestCase
         assert_response :error
       end
     end
+
+    context "destroy action" do
+      should "mark comment as deleted" do
+        delete :destroy, {:id => @comment.id}, {:user_id => @user.id}
+        assert_equal(true, @comment.reload.is_deleted)
+        assert_redirected_to @comment
+      end
+    end
   end
 end
diff --git a/test/unit/comment_test.rb b/test/unit/comment_test.rb
index 6c7a4d481..862b127ce 100644
--- a/test/unit/comment_test.rb
+++ b/test/unit/comment_test.rb
@@ -205,6 +205,26 @@ class CommentTest < ActiveSupport::TestCase
         assert_equal(c2.id, matches.all[0].id)
         assert_equal(c1.id, matches.all[1].id)
       end
+
+      context "that is below the score threshold" do
+        should "be hidden if not stickied" do
+          user = FactoryGirl.create(:user, :comment_threshold => 0)
+          post = FactoryGirl.create(:post)
+          comment = FactoryGirl.create(:comment, :post => post, :score => -5)
+
+          assert_equal([comment], post.comments.hidden(user))
+          assert_equal([], post.comments.visible(user))
+        end
+
+        should "be visible if stickied" do
+          user = FactoryGirl.create(:user, :comment_threshold => 0)
+          post = FactoryGirl.create(:post)
+          comment = FactoryGirl.create(:comment, :post => post, :score => -5, :is_sticky => true)
+
+          assert_equal([], post.comments.hidden(user))
+          assert_equal([comment], post.comments.visible(user))
+        end
+      end
     end
   end
 end