Moved non-config tag category info to its own class

app/logical/post_query_builder.rb

@@ -118,7 +118,7 @@ class PostQueryBuilder
     relation = add_range_relation(q[:filesize], "posts.file_size", relation)
     relation = add_range_relation(q[:date], "posts.created_at", relation)
     relation = add_range_relation(q[:age], "posts.created_at", relation)
-    Danbooru.config.full_tag_config_info.each_key do |category|
+    TagCategory.categories.each do |category|
       relation = add_range_relation(q["#{category}_tag_count".to_sym], "posts.tag_count_#{category}", relation)
     end
     relation = add_range_relation(q[:post_tag_count], "posts.tag_count", relation)
@@ -511,11 +511,11 @@ class PostQueryBuilder
     when "tagcount_asc"
       relation = relation.order("posts.tag_count ASC")
 
-    when /(#{Danbooru.config.short_tag_name_mapping.keys.join("|")})tags(?:\Z|_desc)/
-      relation = relation.order("posts.tag_count_#{Danbooru.config.short_tag_name_mapping[$1]} DESC")
+    when /(#{TagCategory.short_name_regex})tags(?:\Z|_desc)/
+      relation = relation.order("posts.tag_count_#{TagCategory.short_name_mapping[$1]} DESC")
 
-    when /(#{Danbooru.config.short_tag_name_mapping.keys.join("|")})tags_asc/
-      relation = relation.order("posts.tag_count_#{Danbooru.config.short_tag_name_mapping[$1]} ASC")
+    when /(#{TagCategory.short_name_regex})tags_asc/
+      relation = relation.order("posts.tag_count_#{TagCategory.short_name_mapping[$1]} ASC")
 
     when "rank"
       relation = relation.order("log(3, posts.score) + (extract(epoch from posts.created_at) - extract(epoch from timestamp '2005-05-24')) / 35000 DESC")

app/logical/tag_category.rb

@@ -0,0 +1,78 @@
+class TagCategory
+  module Mappings
+    # Returns a hash mapping various tag categories to a numerical value.
+    def mapping
+      @@mapping ||= Hash[
+          Danbooru.config.full_tag_config_info.map {|k,v|  v["extra"].map {|y| [y,v["category"]]}}
+          .reduce([],:+)]
+        .update(Hash[Danbooru.config.full_tag_config_info.map {|k,v|  [v["short"],v["category"]]}])
+        .update( Hash[Danbooru.config.full_tag_config_info.map {|k,v| [k,v["category"]]}])
+    end
+
+    # Returns a hash mapping more suited for views
+    def canonical_mapping
+      @@canonical_mapping ||= Hash[Danbooru.config.full_tag_config_info.map {|k,v| [k.capitalize,v["category"]]}]
+    end
+
+    # Returns a hash mapping numerical category values to their string equivalent.
+    def reverse_mapping
+      @@reverse_mapping ||= Hash[Danbooru.config.full_tag_config_info.map {|k,v| [v["category"],k]}]
+    end
+
+    # Returns a hash mapping for the short name usage in metatags
+    def short_name_mapping
+      @@short_name_mapping ||= Hash[Danbooru.config.full_tag_config_info.map {|k,v| [v["short"],k]}]
+    end
+
+    # Returns a hash mapping for humanized_essential_tag_string (models/post.rb)
+    def humanized_mapping
+      @@humanized_mapping ||= Hash[Danbooru.config.full_tag_config_info.map {|k,v| [k,v["humanized"]]}]
+    end
+
+    # Returns a hash mapping for humanized_essential_tag_string (models/post.rb)
+    def header_mapping
+      @@header_mapping ||= Hash[Danbooru.config.full_tag_config_info.map {|k,v| [k,v["header"]]}]
+    end
+
+    # Returns a hash mapping for related tag buttons (javascripts/related_tag.js)
+    def related_button_mapping
+      @@related_button_mapping ||= Hash[Danbooru.config.full_tag_config_info.map {|k,v| [k,v["relatedbutton"]]}]
+    end
+  end
+
+  module Lists
+    def categories
+      @@categories ||= Danbooru.config.full_tag_config_info.keys
+    end
+
+    def short_name_list
+      @@short_name_list ||= short_name_mapping.keys
+    end
+
+    def humanized_list
+      Danbooru.config.humanized_tag_category_list
+    end
+
+    def split_header_list
+      Danbooru.config.split_tag_header_list
+    end
+
+    def categorized_list
+      Danbooru.config.categorized_tag_list
+    end
+
+    def related_button_list
+      Danbooru.config.related_tag_button_list
+    end
+  end
+
+  module Regexes
+    def short_name_regex
+      @@short_name_regex ||= short_name_list.join("|")
+    end
+  end
+
+  extend Mappings
+  extend Lists
+  extend Regexes
+end