Favorite groups

app/logical/anonymous_user.rb

@@ -221,6 +221,10 @@ class AnonymousUser
     false
   end
 
+  def favorite_groups
+    []
+  end
+
   %w(member banned gold builder platinum contributor janitor moderator admin).each do |name|
     define_method("is_#{name}?") do
       false

app/logical/post_query_builder.rb

@@ -312,6 +312,12 @@ class PostQueryBuilder
       relation = relation.order("position(' '||posts.id||' ' in ' '||(select post_ids from pools where id = #{pool_id})||' ')")
     end
 
+    if q[:favgroup].present?
+      favgroup_id = q[:favgroup].to_i
+      post_ids = FavoriteGroup.find(favgroup_id).post_id_array
+      relation = relation.where("posts.id in (?)", post_ids)
+    end
+
     if q[:ordfav].present?
       user_id = q[:ordfav].to_i
       relation = relation.joins("INNER JOIN favorites ON favorites.post_id = posts.id")

app/logical/post_sets/favorite_group.rb

@@ -0,0 +1,7 @@
+module PostSets
+  class FavoriteGroup < PostSets::Pool
+    def presenter
+      @presenter ||= PostSetPresenters::FavoriteGroup.new(self)
+    end
+  end
+end