Implement forum topic voting and tag change pruning (#3580)

app/views/forum_post_votes/_add_vote.html.erb

@@ -0,0 +1,11 @@
+<%-
+# forum_post
+%>
+
+<li>
+  <%= link_to content_tag(:i, nil, class: "far fa-thumbs-up"), forum_post_votes_path(forum_post_id: forum_post.id, format: "js"), remote: true, method: :post, data: {params: "forum_post_vote[score]=1"}, title: "Vote up" %>
+
+  <%= link_to content_tag(:i, nil, class: "far fa-meh"), forum_post_votes_path(forum_post_id: forum_post.id, format: "js"), remote: true, method: :post, data: {params: "forum_post_vote[score]=0"}, title: "Vote meh" %>
+
+  <%= link_to content_tag(:i, nil, class: "far fa-thumbs-down"), forum_post_votes_path(forum_post_id: forum_post.id, format: "js"), remote: true, method: :post, data: {params: "forum_post_vote[score]=-1"}, title: "Vote down" %>
+</li>

app/views/forum_post_votes/_list.html.erb

@@ -0,0 +1,16 @@
+<%- 
+# votes 
+# forum_post
+%>
+
+<% votes.by(CurrentUser.user.id).each do |vote| %>
+  <%= render "forum_post_votes/vote", vote: vote, forum_post: forum_post %>
+<% end %>
+
+<% votes.excluding(CurrentUser.user.id).each do |vote| %>
+  <%= render "forum_post_votes/vote", vote: vote, forum_post: forum_post %>
+<% end %>
+
+<% if !votes.by(CurrentUser.user.id).exists? %>
+  <%= render "forum_post_votes/add_vote", vote: votes.by(CurrentUser.user.id).first, forum_post: forum_post %>
+<% end %>

app/views/forum_post_votes/_vote.html.erb

@@ -0,0 +1,14 @@
+<%-
+# vote
+# forum_post
+%>
+
+<li class="vote-score-<%= vote.vote_type %>">
+  <% if vote.creator_id == CurrentUser.id %>
+    <%= link_to content_tag(:i, nil, class: "far #{vote.fa_class}"), forum_post_votes_path(forum_post_id: forum_post.id, format: "js"), remote: true, method: :delete %>
+    <%= link_to_user vote.creator %>
+  <% else %>
+    <%= content_tag(:i, nil, class: "far #{vote.fa_class}") %>
+    <%= link_to_user vote.creator %>
+  <% end %>
+</li>

app/views/forum_post_votes/create.js.erb

@@ -0,0 +1,7 @@
+<% if @forum_post_vote.invalid? %>
+Danbooru.error(<%= raw @forum_post_vote.errors.full_messages.join("; ").to_json %>);
+<% else %>
+Danbooru.notice("Voted");
+var code = <%= raw render(partial: "forum_post_votes/list", locals: {forum_post: @forum_post, votes: @forum_post.votes}).to_json %>;
+$("#forum-post-votes-for-<%= @forum_post.id %>").html(code);
+<% end %>

app/views/forum_post_votes/destroy.js.erb

@@ -0,0 +1,3 @@
+Danbooru.notice("Unvoted");
+var code = <%= raw render(partial: "forum_post_votes/list", locals: {forum_post: @forum_post, votes: @forum_post.votes}).to_json %>;
+$("#forum-post-votes-for-<%= @forum_post.id %>").html(code);

app/views/forum_posts/_forum_post.html.erb

@@ -1,3 +1,5 @@
+<%- # original_forum_post_id: used to accelerate #is_original_post? calls %>
+
 <% if forum_post.visible?(CurrentUser.user) %>
   <article class="forum-post" id="forum_post_<%= forum_post.id %>" data-forum-post-id="<%= forum_post.id %>" data-creator="<%= forum_post.creator.name %>">
     <div class="author">
@@ -23,7 +25,7 @@
         <% if CurrentUser.is_member? && @forum_topic %>
           <li><%= link_to "Quote", new_forum_post_path(:post_id => forum_post.id), :method => :get, :remote => true %></li>
         <% end %>
-        <% if CurrentUser.is_moderator? && !forum_post.is_original_post? %>
+        <% if CurrentUser.is_moderator? && !forum_post.is_original_post?(original_forum_post_id) %>
           <% if forum_post.is_deleted %>
             <li><%= link_to "Undelete", undelete_forum_post_path(forum_post.id), :method => :post, :remote => true %></li>
           <% else %>
@@ -31,7 +33,7 @@
           <% end %>
         <% end %>
         <% if forum_post.editable_by?(CurrentUser.user) %>
-          <% if forum_post.is_original_post? %>
+          <% if forum_post.is_original_post?(original_forum_post_id) %>
             <li><%= link_to "Edit", edit_forum_topic_path(forum_post.topic), :id => "edit_forum_topic_link_#{forum_post.topic.id}", :class => "edit_forum_topic_link" %></li>
           <% else %>
             <li><%= link_to "Edit", edit_forum_post_path(forum_post.id), :id => "edit_forum_post_link_#{forum_post.id}", :class => "edit_forum_post_link" %></li>
@@ -42,9 +44,14 @@
         <% else %>
           <li><%= link_to "Permalink", forum_post_path(forum_post) %></li>
         <% end %>
+        <% if forum_post.is_original_post?(original_forum_post_id) %>
+          <ul class="votes" id="forum-post-votes-for-<%= forum_post.id %>">
+            <%= render "forum_post_votes/list", votes: forum_post.votes, forum_post: forum_post %>
+          </ul>
+        <% end %>
       </menu>
       <% if forum_post.editable_by?(CurrentUser.user) %>
-        <% if forum_post.is_original_post? %>
+        <% if forum_post.is_original_post?(original_forum_post_id) %>
           <%= render "forum_topics/form", :forum_topic => forum_post.topic %>
         <% else %>
           <%= render "forum_posts/partials/edit/form", :forum_post => forum_post %>

app/views/forum_posts/_listing.html.erb

@@ -1,6 +1,9 @@
+<%- # forum_post %>
+<%- # original_forum_post_id %>
+
 <div class="list-of-forum-posts">
   <% forum_posts.each do |forum_post| %>
-    <%= render "forum_posts/forum_post", :forum_post => forum_post %>
+    <%= render "forum_posts/forum_post", :forum_post => forum_post, :original_forum_post_id => original_forum_post_id %>
   <% end %>
 </div>
 

app/views/forum_posts/show.html.erb

@@ -1,7 +1,7 @@
 <div id="c-forum-posts">
   <div id="a-show" class="single-forum-post list-of-forum-posts">
     <h1>Topic: <%= @forum_post.topic.title %></h1>
-    <%= render "forum_post", :forum_post => @forum_post %>
+    <%= render "forum_post", :forum_post => @forum_post, :original_forum_post_id => @forum_post.topic.original_post.id %>
   </div>
 </div>
 

app/views/forum_topics/show.html.erb

@@ -20,7 +20,7 @@
       </div>
     <% end %>
 
-    <%= render "forum_posts/listing", :forum_posts => @forum_posts %>
+    <%= render "forum_posts/listing", :forum_posts => @forum_posts, :original_forum_post_id => @forum_topic.original_post.id %>
 
     <% if CurrentUser.is_member? %>
       <% if CurrentUser.is_moderator? || !@forum_topic.is_locked? %>

app/views/layouts/blank.html.erb

@@ -7,9 +7,9 @@
   <%= csrf_meta_tag %>
   <%= auto_discovery_link_tag :atom, posts_path(:format => "atom", :tags => params[:tags]) %>
   <%= stylesheet_link_tag "application", :media => "screen" %>
+  <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js" integrity="sha256-FgpCb/KJQlLNfOu91ta32o/NMZxltwRo8QtmkMRdAu8=" crossorigin="anonymous"></script>
   <%= javascript_include_tag "application" %>
   <%= Danbooru.config.custom_html_header_content %>
-  <meta name="enable-auto-complete" content="<%= CurrentUser.user.enable_auto_complete %>">
   <%= yield :html_header %>
 </head>
 <body lang="en">

app/views/layouts/default.html.erb

@@ -71,6 +71,7 @@
     "url" : "<%= root_url %>"
   }
   </script>
+  <script defer src="https://use.fontawesome.com/releases/v5.0.10/js/all.js" integrity="sha384-slN8GvtUJGnv6ca26v8EzVaR9DC58QEwsIk9q1QXdCU8Yu8ck/tL/5szYlBbqmS+" crossorigin="anonymous"></script>
 </head>
 <body lang="en" <%= body_attributes(CurrentUser.user) %>>
   <header id="top">