improved search methods

app/models/post_flag.rb

@@ -27,6 +27,14 @@ class PostFlag < ActiveRecord::Base
       q = scoped
       return q if params.blank?
       
+      if params[:creator_id]
+        q = q.where("creator_id = ?", params[:creator_id].to_i)
+      end
+      
+      if params[:creator_name]
+        q = q.where("creator_id = (select _.id from users _ where lower(_.name) = ?)", params[:creator_name].downcase)
+      end
+      
       if params[:post_id]
         q = q.where("post_id = ?", params[:post_id].to_i)
       end