#55

backend/app/controllers/posts_controller.rb

@@ -7,6 +7,8 @@ class PostsController < ApplicationController
   end
 
   def index
+    locale = resolve_locale!
+
     url = params[:url].presence
     title = params[:title].presence
     original_created_from = params[:original_created_from].presence
@@ -46,7 +48,7 @@ class PostsController < ApplicationController
         'COALESCE(pt_max.max_updated_at, posts.updated_at))'
 
     q =
-        filtered_posts
+        filtered_posts(locale)
         .joins("LEFT JOIN (#{ pt_max_sql }) pt_max ON pt_max.post_id = posts.id")
         .reselect('posts.*', Arel.sql("#{ updated_at_all_sql } AS updated_at_all"))
         .preload(:external_tags, :uploaded_user, :parents, :children,
@@ -102,8 +104,10 @@ class PostsController < ApplicationController
   end
 
   def random
+    locale = resolve_locale!
+
     post =
-        filtered_posts
+        filtered_posts(locale)
         .preload(:uploaded_user, :parents, :children,
                  post_tags: [:sections, { tag: [:deerjikists, :materials,
                                                 { tag_name: :wiki_page }] }])
@@ -394,19 +398,19 @@ class PostsController < ApplicationController
 
   private
 
-  def filtered_posts
+  def filtered_posts locale
     tag_names = params[:tags].to_s.split
     match_type = params[:match]
     if tag_names.present?
-      filter_posts_by_tags(tag_names, match_type)
+      filter_posts_by_tags(locale, tag_names, match_type)
     else
       Post.all
     end
   end
 
-  def filter_posts_by_tags tag_names, match_type
+  def filter_posts_by_tags locale, tag_names, match_type
     literals = tag_names.map do |raw_name|
-      { name: TagName.canonicalise(raw_name.sub(/\Anot:/i, '')).first,
+      { name: TagName.canonicalise(locale, raw_name.sub(/\Anot:/i, '')).first,
         negative: raw_name.downcase.start_with?('not:') }
     end