refactoring

app/controllers/pool_elements_controller.rb

@@ -0,0 +1,27 @@
+class PoolElementsController < ApplicationController
+  respond_to :html, :xml, :json, :js
+  before_filter :member_only
+  
+  def create
+    @pool = Pool.find_by_name(params[:pool_name]) || Pool.find(params[:pool_id])
+    @post = Post.find(params[:post_id])
+    @pool.add!(@post)
+    append_pool_to_session(@pool)
+    respond_with(@pool, :location => pool_path(@pool))
+  end
+  
+  def destroy
+    @pool = Pool.find(params[:pool_id])
+    @post = Post.find(params[:post_id])
+    @pool.remove!(@post)
+    respond_with(@pool, :location => pool_path(@pool))
+  end
+  
+private
+  def append_pool_to_session(pool)
+    recent_pool_ids = session[:recent_pool_ids].to_s.scan(/\d+/)
+    recent_pool_ids << pool.id.to_s
+    recent_pool_ids = recent_pool_ids.slice(1, 5) if recent_pool_ids.size > 5
+    session[:recent_pool_ids] = recent_pool_ids.uniq.join(",")
+  end
+end