fixes #563

app/controllers/tags_controller.rb

@@ -8,8 +8,7 @@ class TagsController < ApplicationController
   end
   
   def index
-    @search = Tag.search(params[:search])
-    @tags = @search.paginate(params[:page])
+    @tags = Tag.search(params[:search]).paginate(params[:page])
     respond_with(@tags)
   end
   

app/models/artist.rb

@@ -228,7 +228,7 @@ class Artist < ActiveRecord::Base
     
     def search(params)
       q = active
-      return q if params.blank?
+      params = {} if params.blank?
 
       case params[:name]
       when /^http/

app/models/tag.rb

@@ -403,7 +403,7 @@ class Tag < ActiveRecord::Base
     
     def search(params)
       q = scoped
-      return q if params.blank?
+      params = {} if params.blank?
       
       if params[:name_matches].present?
         q = q.name_matches(params[:name_matches])
@@ -413,7 +413,7 @@ class Tag < ActiveRecord::Base
         q = q.where("category = ?", params[:category])
       end
       
-      if params[:hide_empty] != "no"
+      if params[:hide_empty].blank? || params[:hide_empty] != "no"
         q = q.where("post_count > 0")
       end
       
@@ -422,22 +422,22 @@ class Tag < ActiveRecord::Base
       end
       
       case params[:order]
-      when "date"
-        q = q.order("created_at desc")
+      when "name"
+        q = q.order("name")
         
       else
-        q = q.order("name")
+        q = q.order("created_at desc")
       end
       
       case params[:sort]
       when "count"
         q = q.order("post_count desc")
         
-      when "date"
-        q = q.order("created_at desc")
+      when "name"
+        q = q.order("name")
 
       else
-        q = q.order("name")
+        q = q.order("created_at desc")
       end
       
       q

app/models/wiki_page.rb

@@ -26,7 +26,7 @@ class WikiPage < ActiveRecord::Base
 
     def search(params = {})
       q = scoped
-      return q if params.blank?
+      params = {} if params.blank?
 
       if params[:title].present?
         q = q.where("title LIKE ? ESCAPE E'\\\\'", params[:title].downcase.tr(" ", "_").to_escaped_for_sql_like)