fixes #2217

app/controllers/comments_controller.rb

@@ -1,7 +1,7 @@
 class CommentsController < ApplicationController
   respond_to :html, :xml, :json
   before_filter :member_only, :only => [:update, :create, :edit, :destroy]
-  rescue_from ActiveRecord::StatementInvalid, :with => :search_error
+  rescue_from ActiveRecord::StatementInvalid, :with => :rescue_exception
 
   def index
     if params[:group_by] == "comment"
@@ -103,14 +103,4 @@ private
       raise User::PrivilegeError
     end
   end
-
-protected
-  def search_error(e)
-    if e.message =~ /syntax error in tsquery/
-      @error_message = "Meta-tags are not supported in comment searches by tag"
-      render :template => "static/error", :status => 500
-    else
-      rescue_exception(e)
-    end
-  end
 end

app/logical/post_query_builder.rb

@@ -101,12 +101,14 @@ class PostQueryBuilder
     relation
   end
 
-  def build
+  def build(relation = nil)
     unless query_string.is_a?(Hash)
       q = Tag.parse_query(query_string)
     end
 
-    relation = Post.where("true")
+    if relation.nil?
+      relation = Post.where("true")
+    end
 
     if q[:tag_count].to_i > Danbooru.config.tag_query_limit
       raise ::Post::SearchError.new("You cannot search for more than #{Danbooru.config.tag_query_limit} tags at a time")

app/models/artist_commentary.rb

@@ -13,7 +13,7 @@ class ArtistCommentary < ActiveRecord::Base
     end
 
     def post_tags_match(query)
-      joins(:post).where("posts.tag_index @@ to_tsquery('danbooru', ?)", query.to_escaped_for_tsquery_split)
+      PostQueryBuilder.new(query).build(self.joins(:post))
     end
 
     def search(params)

app/models/comment.rb

@@ -33,7 +33,7 @@ class Comment < ActiveRecord::Base
     end
 
     def post_tags_match(query)
-      joins(:post).where("posts.tag_index @@ to_tsquery('danbooru', ?)", query.to_escaped_for_tsquery_split)
+      PostQueryBuilder.new(query).build(self.joins(:post))
     end
 
     def for_creator(user_id)

app/models/note.rb

@@ -29,7 +29,7 @@ class Note < ActiveRecord::Base
     end
 
     def post_tags_match(query)
-      joins(:post).where("posts.tag_index @@ to_tsquery('danbooru', E?)", query.to_escaped_for_tsquery_split)
+      PostQueryBuilder.new(query).build(self.joins(:post))
     end
 
     def for_creator(user_id)

app/views/artist_commentaries/search.html.erb

@@ -14,7 +14,7 @@
         <%= select "search", "translated_present", ["yes", "no"], :include_blank => true %>
       </div>
 
-      <%= search_field "post_tags_match", :label => "Tags", :hint => "Meta-tags not supported" %>
+      <%= search_field "post_tags_match", :label => "Tags" %>
       <%= submit_tag "Search" %>
     <% end %>
   </div>

app/views/comments/search.html.erb

@@ -7,7 +7,7 @@
 
       <%= search_field "body_matches", :label => "Body" %>
       <%= search_field "creator_name", :label => "User" %>
-      <%= search_field "post_tags_match", :label => "Tags", :hint => "Meta-tags not supported" %>
+      <%= search_field "post_tags_match", :label => "Tags" %>
       <%= submit_tag "Search" %>
     <% end %>
   </div>

app/views/notes/search.html.erb

@@ -7,7 +7,7 @@
 
       <%= search_field "body_matches", :label => "Body" %>
       <%= search_field "creator_name", :label => "Author" %>
-      <%= search_field "post_tags_match", :label => "Tags", :hint => "Meta-tags not supported" %>
+      <%= search_field "post_tags_match", :label => "Tags" %>
       <%= submit_tag "Search" %>
     <% end %>
   </div>